Page 1 Order Number: MGCS011101C0 Facsimile UF-580 / 590 / 780 / 790 WARNING This service information is designed for experienced repair technicians only and is not intended for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Page 2 This Product Uses Lead (Pb) Free Solder Printed Circuit Boards (PCBs). Information regarding Lead-Free (PbF) solder; Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a mark following the PCB part numbers in a label on the PCB. Caution: Pb free solder has a higher melting point than standard solder;...
Page 3: Table Of Contents
Cassette ..........237 3.2. Periodic Check Points......48 7.10. Optional Cassette 3.3. Periodic Maintenance Check List ...49 (Except UF-580/780) ......239 3.4. Updating the Firmware ......50 7.11. PC Board / Harness ......241 3.5. Glossary of Electrical Abbreviations ..55 7.12. Packing and Accessories ..... 244 3.6.
Page 4 Table of Contents 10.8. SNS4 PC Board ........289 10.9. CCD PC Board........290 10.10.ILS PC Board ........291 10.11.ACI PC Board ........292 10.12.Power Supply Unit ....... 293...
Page 5: Specifications Table
1 Specifications Table 1.1. Fax Function Description Items Remarks UF-580 UF-590 UF-780 UF-790 Main Specifications ITU-T Std. & Non-Std. 1 Compatibility (PCC) 2 PSTN Line Port 3 Leased Line Port 4 V.24 Line Port 5 Modem Speed 33.6 - 2.4 kbps...
Page 6 Description Items Remarks UF-580 UF-590 UF-780 UF-790 *For USA and Canada only, documents must be inserted by staggered feed (stairs-shape). Face Down A4 / Letter 0.0024”, 12 lb 50 sheets* (0.06 mm, 45 g/m ) to 0.0039”, 16 lb (0.10 mm, 60 Operating Environment 68°F (20°C), 50%RH...
Page 7 Description Items Remarks UF-580 UF-590 UF-780 UF-790 Copy Quality 64-Level Error Diffusion 1 Halftone (Tx) Yes* * Halftone (S-Fine) only with the Resolution key Super Fine (Tx & Rx) 406 x 391* * Interpolated 16 pels/mm dpi x lpi (16 x 15.4)
Page 8 Description Items Remarks UF-580 UF-590 UF-780 UF-790 Standards FCC Part 68 1 PSTN Industry Canada No. CS-03 UL1950 (UL60950 3rd edition) 2 Safety CSA C22.2 No.950 Class B computing device 3 EMI in FCC Part 15 Construction Excluding projections 14.6 x 18.0 x 9.8 in...
Page 9 Description Items Remarks UF-580 UF-590 UF-780 UF-790 Parallel Port Interface Standard Printer Interface (GDI) Standard Scanner Interface (TWAIN) Standard Class 2 Fax Modem Standard Interface PC Fax Interface (PCC) Standard PC Fax Interface *HydraFax / LaserFAX Not Supported (LaserFAX) Document Manager...
Page 10 Description Items Remarks UF-580 UF-590 UF-780 UF-790 17 Flash Key Handset or External 18 External Telephone Jack Telephone Transmission Features 1 Direct Transmission ADF Transmission 2 Memory Transmission Page Retransmission Quick Memory Dialing after 1st page Transmission stored Multi-Station Transmission Yes (Max.144)
Page 11 Description Items Remarks UF-580 UF-590 UF-780 UF-790 6 Direct Polling Tx 7 Memory Polling Tx 1 File 8 Preset Polling Password Temporary Polling Password 10 Continuous Polling Convenience 1 Panel Display 20 x 2 Alphanumeric LCD 2 Voice Contact 3 Edit File Mode...
Page 12 Description Items Remarks UF-580 UF-590 UF-780 UF-790 Special Communications 1 Password XMT / RCV Closed Network 2 Selective Reception TSI Check 3 Relay XMT Request 4 Relay XMT Center Network (Via a Center Station) 5 Confidential XMT / Polling 6 Confidential Center...
Page 13: Printer Function
1.2. Printer Function Description Items Remarks UF-580 UF-590 UF-780 UF-790 Interface Centronics Parallel I/F Standard* *ECP Mode (IEEE-1284) 2 LAN (Network) 3 USB Port 4 IEEE-1394 Printer Function 1 Printing Size Letter / A4 / Legal 2 Bypass 3 Stapling...
Page 14 Description Items Remarks UF-580 UF-590 UF-780 UF-790 4 Driver TWAIN 5 2-Sided Scanning...
Page 15: External View
1.3. External View (For USA only) Product complies with DHHS Rules 21 CFR Subchapter J in effect at date of manufacture. Manufacturer's Name and Address Factory ID 3 inch 14.6 inch (370 mm) (75 mm) 7 inch L TR : 4.8 inch 13.2 inch 3.6 inch (91 mm)
Page 16 Serial Number Contents The contents of the 11-digit Serial Number is as follows: Note: Model UF-580 / 590 / 780 / 790 will utilize this format starting with first production. Sequential Production Number 5-Digit Sequential Production Number 00001 ~ 99999 = 1 ~ 99,999 units A0001 ~ Y9999 = 100,000 ~ 329,976 units (Letters “I”...
Page 17: Control Panel
1.4. Control Panel For USA and Canada • UF-790 • UF-780...
Page 18 For Other Destinations • UF-590 • UF-580...
Page 19: Disassembly Instructions
2 Disassembly Instructions 2.1. General Disassembly Flowchart...
Page 20: Disassembly Instructions
2.2. Disassembly Instructions Power Cord (1108), Telephone Line Cable (1109), Recording Paper Tray 2.2.1. Assembly (1107), Paper Cassette (1) Disconnect the Power Cord (1108). (2) Disconnect the Telephone Line Cable (1109). (3) Remove the Recording Paper Tray Assembly (1107). (4) Remove the Paper Cassette.
Page 21 (5) Disconnect Connector CN9 on the SC PC Board (1001). (6) Remove 2 Screws (C2) and 1 Screw (1Y). (7) Remove the Speaker (117). <The following steps (8)~(9) are available for UF-580/780 only> (8) Remove 2 Silver Screws (B1). (9) Remove the SNT Cover (131).
Page 22 (10) Remove 2 Silver Screws (B1). (11) Remove the Right Cover (102). (11) (10) (12) Release 3 Latch Hooks. (13) Remove the Front Cover (104). (12) (13) <Replacing & Cleaning Separation Rubber> (1) Open the Control Panel Unit. (2) Open the Printer Cover (106). (3) Remove the Separation Rubber Holder Assy (202).
Page 23 2.2.3. Control Panel Unit, PNL1 PC Board (1004) (1) Open the Printer Cover (106) (2) Slightly open the Control Panel Unit. (3) Remove the Left Cover (103) and the Right Cover (102). (Refer to 2.2.2.) (4) Disconnect Connector CN14 on the SC PC Board.
Page 24 2.2.4. Transmit Guide (301) Assembly, Scanning Glass (308) (1) Remove the Left Cover (103), Right Cover (4)x4 (102), and Front Cover (104) (Refer to 2.2.2.). (2) Remove the Control Panel Unit (Refer to 2.2.3.). (3) Release the Harnesses from the clamps. (4) Remove 4 Screws (19).
Page 25 2.2.5. Stamp Assembly, Stamp Solenoid (327) (1) Remove the Transmit Guide (301) Assembly (Refer to 2.2.4.). (2) Remove the Stamp Assembly (325, 326). (3) Remove 1 Screw (19). (4) Remove the Stamp Solenoid (327).
Page 26 2.2.6. Eject Roller (303) (1) Remove the Transmit Guide (301) Assembly (Refer to 2.2.4.). (2) Remove the Stamp Assembly (325, 326) (Refer to 2.2.5.). (3) Release 2 Latch Hooks. (4) Remove the Ground Plate (317). (5) Release the Latch Hook by using a small Blade- tip Screwdriver.
Page 27 (10) Remove 2 P6A Bushings (316). (10) (11) Remove the Eject Roller (303). (11)
Page 28 2.2.7. Transmit Motor (324) (1) Remove the Transmit Guide (301) Assembly (Refer to 2.2.4.). (2) Remove the Stamp Assembly (325, 326) (Refer to 2.2.5.). (3) Disconnect the Connector (1020) from the Transmit Motor (324). (4) Remove the ADF Gear (305) and ADF Angular Shaft (338).
Page 29 2.2.8. Scanner Block (321), Mirror 1 (334), Mirror 2 (335), Mirror 3 (336), ADF Roller (331) (1) Remove the Transmit Guide (301) Assembly (Refer to 2.2.4.). (2) Remove the Stamp Assembly (325, 326) (Refer to 2.2.5.). (3) Remove 1 Screw (19). (4) Remove the Harnesses from the hook.
Page 30 2.2.9. LED Array (329), Feed Roller (302) (1) Remove the Scanner Block (321) (Refer to 2.2.8.). (2) Remove the Ground Plate (317). (3) Remove 4 Screws (19). (4) Release the Harness from the hook. (5) Remove the LED Bracket (306) Assembly. (6) Remove 3 LED Clips (307).
Page 31 (1) Remove the Left Cover (Refer to 2.2.2.). (2) Disconnect all Connectors on SC PC Board. (3) Remove 9 Screws (19). (7 Screws for UF-580/780) (4) Remove the SC PC Board (1001). (3)x9 (5) Move all Harnesses away from the front of the Door Sensor.
Page 32 2.2.11. Paper Feed Solenoid (531), Clutch Gear Assembly, Paper Feed Roller (518) (1) Remove the Right Cover (102) (Refer to 2.2.2.). (2) Remove 1 Screw (19). (3) Remove the Paper Feed Solenoid (531). Note: If the Paper Feed Solenoid does not work properly due to dust, etc.
Page 33 (11) Remove 2 Screws (4N). (12) Remove the Paper Feed Rollers (518). (11) (12)
Page 34 2.2.12. Printer Cover (106), Rear Cover (105), Printer Motor (626) (1) Remove the Left Cover and the Right Cover (Refer to 2.2.2.). (2) Release the hooks and remove the Printer Cover (106). (3) Remove 2 Silver Screws (B1). (4) Remove the Rear Cover (105). (5) Remove 1 Screw (19).
Page 35 2.2.13. MJR PC Board (1003), Power Supply Unit (1002) Caution: Make sure the Power Cord (1108) is unplugged. Note: If removing only the Power Supply Unit, skip step (3), (4) and (5). (1) Remove the Rear Cover (105) (Refer to 2.2.12.). (2) Disconnect the Connectors (CN28 and 29) on the MJR PC Board.
Page 36 2.2.14. Fuser Unit, Thermistor Assembly (728) (1) Remove the Rear Cover (Refer to 2.2.12.). (2) Remove 1 Screw (19). (3) Remove the Fuser Top Cover (733). (4) Disconnect the Connectors CN85 and CN87 on the SNS4 PC Board (1007). (5) Disconnect the Connector CN102 on the Power Supply Unit (423).
Page 37 2.2.15. Fuser Lamp (732), Exit Roller (719), Fuser Roller (709), Pressure Roller (706) (1) Remove the Rear Cover (Refer to 2.2.12.) and the Fuser Unit (Refer to 2.2.14.). (2) Remove 1 Screw (4N). (3) Remove the PSU-Fuser Harness (1028) and Fuser Lamp Terminal B (731).
Page 38 (10) Remove 2 Pressure Springs (708). (10) (11) Remove the E14 Gear (714). Caution: You may need to use force to pull out the Gear. (14) (12) (12) Remove the 2 E18 Gears (713). (13) Remove 2 C-Rings (712). (14) Remove the E24 Drive Gear (711). (15) Remove 2 P17L6.8 Bushings (710).
Page 39 (19) Remove 2 P6L5.5 Bushings (707). (20) Remove the Pressure Roller (706). Caution: Do not scratch the surface of the Pressure Roller when removing or reinstalling it. (20) (19)
Page 40 2.2.16. Rear Chassis (505), SNS1 PC Board (1008) (1) Remove the Power Supply Unit (Refer to 2.2.12.). (2) Remove the SC PC Board (Refer to 2.2.12.). (3) Remove the Fuser Unit (Refer to 2.2.14.). (4) Remove 6 Screws (19). (5) Remove the Bracket (403). (6) Remove the Rear Chassis (505).
Page 41 2.2.17. Transfer Guide (601) Assembly, Feed Roller (526) (1) Remove the Rear Chassis (Refer to 2.2.16.). (2) Remove 2 Screws (C8). (3) Disconnect Connector CN80 on the SNS1 PC Board (1008). (4) Remove the Transfer Guide (601) Assembly. (5) Remove the 2 Snap Rings. (B9). (6) Remove the Feed Roller (526).
Page 42 Note: When reinstalling, make sure that the Toner Sensor Spring Plate is inserted into the 2 notches in the main frame as illustrated. UF-580/590 (8) Remove the Toner Sensor (513). UF-780/790 (9) Disconnect the Connector on the Toner Sensor. UF-580/590...
Page 43 (10) Disconnect 2 Connectors on the Laser Unit (11)x4 (512). (12) (11) (11) (11) Remove 4 Screws (1Y). (12) Remove the Laser Unit (512). (10) (13) Disconnect Connectors CN83 and CN84 on the SNS3 PC Board (1009). (14) Remove 1 Screw (19). (13) (13) (14)
Page 44 2.2.19. Bias Transfer Roller (604) (1) Remove the CCD Shield Plate (Refer to 2.2.18.). (2) Remove 2 Screws (19). (3) Remove the BTR Guide (602). (4) Release the Latch Hook on the Transfer Guide Black (601) Assembly as illustrated and remove the Bias Transfer Roller (604).
Page 45 2.2.20. SNS2 PC Board (1010) (1) Place the machine on its rear side. (2) Remove 1 Screw (19). (3) Remove the Plate A (507). (4) Remove 1 Screw (19). (5) Disconnect Connector CN82 (538) on the SNS2 PC Board (1010). (6) Remove the SNS2 PC Board (1010).
Page 46: Printer Grease Points
2.2.21. Printer Grease Points Before reassembling, apply EM-50L Grease to the parts shown in the illustration. (1) B83D22 Gear G (622) : Gear surface (2) D60D20 Gear B (621) : Rib surface (3) D55 Gear F (619) : Gear surface (4) D55 Gear F (619) : Gear Side surface...
Page 47: Screw Identification Template
2.3. Screw Identification Template Ref No. Part No. Figure Remark XTB3+8J Screw XYN3+F8 Screw XYN4+F8 Screw XYN3+F10 Screw XTB3+10J Screw XSN3+W8FC Screw XTB26+6J Screw DZPA000001 Screw DZPB000007 Silver Screw XTB3+8JK Screw XSB4+10BN Screw DZJM000171 Snap Ring DZPB000020 Screw XTW3+8SFC Screw...
Page 48: Maintenance, Adjustments And Check Points
3 Maintenance, Adjustments and Check Points 3.1. Required Tools Tool Tool Soft Cloth Tweezer Isopropyl Alcohol Pliers Phillips Screwdriver (#2) Cotton Swab Stubby Phillips Screwdriver (#2) Brush Blade-tip Screwdriver (3/32 in) 10 Molykote EM-50L Grease (Available from Dow Corning, URL: http://www.dowcorning.com) 3.2.
Page 49: Periodic Maintenance Check List
3.3. Periodic Maintenance Check List The chart outlined below is a general guideline for maintenance. The example list is for an average usage of 50 transmitted and received documents per day. Needless to say, the environmental conditions and actual use will vary these factors. The chart below is for reference only. Ref.
Page 50: Updating The Firmware
B.Copy the Firmware from an Existing Machine 1. Unplug the Power Cord to turn the machine OFF. 2. Install a Flash Memory Card (2 MB or higher) into the machine with the Panasonic Logo facing outwards. 3. Plug in the Power Cord to turn the machine ON.
Page 51 Erasing the Master Firmware Card (UF-590/790) 1. Unplug the Power Cord to turn the machine OFF. 2. Install the Master Firmware Card into the machine with the Panasonic Logo facing outwards. 3. Plug in the Power Cord to turn the machine ON.
Page 52: Firmware Version
: English, French & Spanish g : German, French & Italian Firmware Type A : Standard B : Optional Model Number <UF-580/590> HOST UF-590 A A V1.xxxx AB Destination Code (Fax) AB : UK Firmware Version (V1.xxxx) Language Code A : US English, C-French &...
Page 53 (3) Remove the Memory Card Cover. Memory Card Cover (4) Insert the Flash Memory Card gently into the card slot with the Panasonic logo facing to the outside of the machine. Caution: Memory Card Installing the Flash Memory Card in the wrong direction may damage the connecting pins inside the machine.
Page 54 (5) Open the Control Panel Unit. (6) Activate the Read Point Sensor with your finger Control Panel Unit and plug in the Power Cord. (7) Wait approximately 10 seconds, release the Read Point Sensor, close the Control Panel Unit (ADF) and the Printer Cover. (8) Allow the unit to complete the Firmware Update (approx.
Page 55: Glossary Of Electrical Abbreviations
3.5. Glossary of Electrical Abbreviations Glossary of Electrical Abbreviations Signal Name Description +24V +24 VDC Power Supply +24VD +24 VDC Power Supply +24VM +24 VDC Power Supply (Motors) +3.3V +3.3 VDC Power Supply +5 VDC Power Supply +5VP +5 VDC Pilot Power Supply (Sleep Mode) -5 VDC Power Supply Address Signal Address Signal...
Page 56 Glossary of Electrical Abbreviations Signal Name Description Data Signal Data Signal Data Signal Data Signal Data Signal Data Signal Data Signal DATA0 Data Signal DATA1 Data Signal DATA2 Data Signal DATA3 Data Signal DATA4 Data Signal DATA5 Data Signal DATA6 Data Signal DATA7 Data Signal...
Page 57 Glossary of Electrical Abbreviations Signal Name Description MGND Ground MIC (-) Handset Microphone MIC (+) Handset Microphone MMnA Motor Drive Signal MMnB Motor Drive Signal MMpA Motor Drive Signal MMpB Motor Drive Signal MTnA Stepping Signal MTnB Stepping Signal MTpA Stepping Signal MTpB Stepping Signal...
Page 58 Glossary of Electrical Abbreviations Signal Name Description IEEE1284 Active nSELIN (Host→Peripheral) nSSR Fuser Lamp Control Signal nSTAMPON Stamp Control Signal Host Clock / Data Transfer Strobe nSTB (Host→Peripheral) nS/H Sample Hold Signal nTR0 Transfer Control Cleaning Output nVIDEO Laser Control nWEH Write H Signal - Low Enable nWEL...
Page 59: Sc Pc Board
3.6. SC PC Board SC PCB Signal Name Destination Signal Waveform Function Pin No. CN1-1 +24V LED Array +24 VDC Power Supply +24V CN1-2 nLEDON LED Array LED Enable Signal Approx.+13V(H) LED Off LED On 0V(L) SC PCB Signal Name Destination Signal Waveform Function...
Page 60 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN6-1 +24V POWER SUPPLY +24 VDC Power Supply +24V UNIT CN103-1 CN6-2 +24V POWER SUPPLY +24 VDC Power Supply +24V UNIT CN103-2 CN6-3 POWER SUPPLY Ground UNIT CN103-3 CN6-4 POWER SUPPLY Ground UNIT CN103-4...
Page 61 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN7-1 CCD PCB Reset Signal +5V(H) CN30-1 0V(L) CN7-2 FCK1 CCD PCB Shift Register Clock 1 s1 s CN30-2 +5V(H) 0V(H) CN7-3 FCK2 CCD PCB Shift Register Clock 1 s 1 s CN30-3 +5V(H) 0V(H)
Page 62 CN12 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-1 Flash Memory Ground Card CN12-2 Flash Memory Data Signal +5V(H) Card 0V(L) CN12-3 Flash Memory Data Signal +5V(H) Card 0V(L) CN12-4 Flash Memory Data Signal +5V(H) Card 0V(L) CN12-5 Flash Memory Data Signal...
Page 63 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-12 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-13 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-14 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-15 nWEL Flash Memory Write L Signal - Low Enable +5V(H) Card 0V(L)
Page 64 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-23 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-24 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-25 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-26 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-27...
Page 65 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-34 Flash Memory Ground Card CN12-35 Flash Memory Ground Card CN12-36 Flash Memory Flash Memory Card 5V(H) Card Detection Signal H: Card Not Installed 0V(L) L: Card Installed CN12-37 Flash Memory Data Signal +5V(H) Card...
Page 66 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-45 Flash Memory Not Used Card CN12-46 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-47 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-48 Flash Memory Address Signal +5V(H) Card 0V(L) CN12-49 Flash Memory Address Signal...
Page 67 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN12-59 nMB4 Flash Memory Flash Memory Size +5V(H) Card H: 8MB L: Others 0V(L) CN12-60 Flash Memory Not Used Card CN12-61 N.C. Flash Memory Not Used Card CN12-62 Flash Memory Flash Memory Card ID +5V(H) Card...
Page 68 CN14 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN14-1 PNL PCB Ground CN50-1 CN14-2 PNL PCB +5 VDC Power Supply CN50-2 CN14-3 +5VP PNL PCB +5 VDC Pilot Power Supply, CN50-3 that provides power to the active components during the Sleep Mode.
Page 69 CN18 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN18-1 L2 (T) MJR PCB Line Transformer Input CN28-1 Signal CN18-3 L1 (R) MJR PCB Ground CN28-3 CN18-6 +24V MJR PCB +24 VDC Power Supply +24V CN29-1 CN18-7 +5VP MJR PCB +5 VDC Power Supply CN29-2...
Page 70 CN53 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN53-1 +24VM POWER SUPPLY +24 VDC Power Supply +24V UNIT CN103-12 CN53-2 nDRCK POWER SUPPLY Development +AC Clock +24V UNIT CN103-13 CN53-3 nCRCK POWER SUPPLY Charge Control DC Output +24V UNIT CN103-14...
Page 71 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN54-6 MMnB Main Motor Motor Drive Signal +24V CN118-6 CN56 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN56-1 +24VM Paper Feed +24 VDC Power Supply +24V Solenoid CN56-2 nADF1 Paper Feed...
Page 72 TONER SNS3 PCB Remaining Toner Level CN83-4 Signal Approx. +2 VDC CN59-5 SNS3 PCB +5 VDC Power Supply CN83-5 CN66 (Except UF-580/780) SC PCB Signal Name Destination Signal Waveform Function Pin No. CN66-1 +24VM CST2 PCB +24 VDC Power Supply...
Page 73 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN66-3 CST2 PCB +5 VDC Power Supply CN70-3 CN66-4 nPCHK2 CST2 PCB No Paper Detection Signal +5V(H) CN70-4 (2nd Cassette) H: No Paper L: Paper 0V(L) CN66-5 pADF2 CST2 PCB Feed Roller Drive Clutch +5V (H) CN70-5...
Page 74 H: OFF L: ON 0V(L) CN69-4 MGND Ground CN15-4 CN69-5 +24VM +24 VDC Power Supply +24V CN15-5 CN91 (Except UF-580/780) SC PCB Signal Name Destination Signal Waveform Function Pin No. Host Clock / Data Transfer CN91-1 nSTB CENTRONICS Strobe (Host→Peripheral)
Page 75 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN91-5 DATA3 CENTRONICS Data Signal +5V(H) 0V(L) CN91-6 DATA4 CENTRONICS Data Signal +5V(H) 0V(L) CN91-7 DATA5 CENTRONICS Data Signal +5V(H) 0V(L) CN91-8 DATA6 CENTRONICS Data Signal +5V(H) 0V(L) CN91-9 DATA7 CENTRONICS Data Signal +5V(H)
Page 76 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN91-16 CENTRONICS Ground CN91-17 CENTRONICS Ground CN91-18 CENTRONICS +5V Pull Up CN91-19 CENTRONICS Ground CN91-20 CENTRONICS Ground CN91-21 CENTRONICS Ground CN91-22 CENTRONICS Ground CN91-23 CENTRONICS Ground CN91-24 CENTRONICS Ground CN91-25 CENTRONICS Ground CN91-26...
Page 77 SC PCB Signal Name Destination Signal Waveform Function Pin No. CN91-28 CENTRONICS Ground CN91-29 CENTRONICS Ground CN91-30 CENTRONICS Ground Reverse Request / Initialize CN91-31 nINIT CENTRONICS +5V(H) (Host→Peripheral) 0V(L) Data Available / Error CN91-32 nFAULT CENTRONICS Condition (Peripheral→Host) CN91-33 Not Used CENTRONICS Not Used CN91-34...
Page 78: Mjr Pc Board
3.7. MJR PC Board CN20 MJR PCB Signal Name Destination Signal Waveform Function Pin No. CN20-3 LT2(T) Telephone Line Line Signal CN20-4 LT1(R) Telephone Line Line Signal CN23 MJR PCB Signal Name Destination Signal Waveform Function Pin No. CN23-1 N.C. Not Used CN23-2 N.C.
Page 79: Power Supply Unit
3.8. Power Supply Unit CN101 PS Unit Signal Name Destination Signal Waveform Function Pin No. CN101-1 Black (L) ACI PC Board AC Power Supply AC100V CN101-2 N.C. Not Used CN101-3 White (N) ACI PC Board AC Power Supply AC100V CN102 PS Unit Signal Name Destination...
Page 80 CN201 PS Unit Signal Name Destination Signal Waveform Function Pin No. CN201-1 Development Development Development Voltage Roller (AC 1.65 kHz Square Wave) -300V & DC Voltage 1650Vp-p CN201-2 N.C. Not Used CN201-3 N.C. Not Used CN201-4 N.C. Not Used Charge Current: 200 µA CN201-5 Charge Bias Charge...
Page 81: Pnl Pc Board
3.9. PNL PC Board CN50 Refer to SC PC Board CN14. PNL PCB Signal Name Destination Signal Waveform Function Pin No. LCD-1 LCD Module-1 Resister Select Signal H: Data Register L: Instruction Register LCD-2 LCD Module-2 Data Read/Write Select Signal H: Read L: Write LCD-3...
Page 82 PNL PCB Signal Name Destination Signal Waveform Function Pin No. LCD-11 LCD Module-11 Data Signal LCD-12 LCD Module-12 Ground LCD-13 LCD Module-13 +5 VDC Power Supply LCD-14 LCD Module-14 +5 VDC Power Supply LCD-15 LCD Module-15 Power Supply for LCD +4.8V(Max) LCD-16 LCD Module-16...
Page 83: Sns3 Pc Board
3.10. SNS3 PC Board CN83 Refer to SC PC Board CN59. CN84 SNS3 PCB Signal Name Destination Signal Waveform Function Pin No. CN84-1 Toner Sensor Ground CN84-2 TONER Toner Sensor Remaining Toner Level Signal Approx. +2 VDC CN84-3 Toner Sensor +5 VDC Power Supply...
Page 84: Sns4 Pc Board
3.11. SNS4 PC Board CN85 SNS3 PCB Signal Name Destination Signal Waveform Function Pin No. SNS1 PCB CN85-1 nCCHK1 No Cassette Detection +5V(H) CN81-1 Signal L: No Cassette 0V(L) SNS1 PCB CN85-2 Ground CN81-2 SNS1 PCB CN85-3 nRSEN Timing Sensor Detection +5V(H) CN81-3...
Page 85: Sns1 Pc Board
3.12. SNS1 PC Board CN80 SNS1 PCB Signal Name Destination Signal Waveform Function Pin No. SNS2 PCB CN80-1 nCCHK1 No Cassette Detection +5V(H) CN82-1 Signal L: No Cassette 0V(L) SNS2 PCB CN80-2 Ground CN82-2 SNS2 PCB CN80-3 LDSC1 No Cassette Sensor LED CN82-3 Drive Current Approx.
Page 86: Cst2 Pc Board (Optional)
3.17. CST2 PC Board (Optional) CN70 Refer to SC PC Board CN66. CN71 CST2 PCB Signal Name Destination Signal Waveform Function Pin No. CN71-1 +24VM Paper Feed +24 VDC Power Supply +24V Solenoid CN70-2 nADF2 Paper Feed Paper Feed Roller Solenoid +24V (H) Solenoid Control Signal...
Page 87: Sru Pc Board (Optional)
3.19. SRU PC Board (Optional) CN90 Refer to MJR PC Board CN23. CN91 SRU PCB Signal Name Destination Signal Waveform Function Pin No. CN91-1 N.C. Not Used CN91-2 MIC (+) Telephone Handset Microphone Handset CN CN91-3 RCV (+) Telephone Handset Receiver Handset CN CN91-4 RCV (-)
Page 88: Troubleshooting
4 Troubleshooting 4.1. Initial Troubleshooting Flowchart START Plug the Power Cord in and turn the Power Switch ON. Does the unit power up normally? Does the LCD display the function correctly? Troubleshoot Improper LCD Display (Sect. 4.2). Troubleshoot any 3-digit INFO.
Page 89: Improper Lcd Display
4.2. Improper LCD Display START Check connectors: CN14 (SC PCB) and CN50 (PNL1 PCB). When pressing any key, do you hear the 'Pi-' sound from the Speaker? Does CN14, pin 2 and pin 3 on the SC PCB measure +5VDC? Replace the PNL1 PCB.
Page 90: Information Codes (Info. Codes)
4.3. Information Codes (INFO. CODES) The 3-digit information codes display to show the unit’s status. These codes also print on the journal. The following table indicates appropriate sections for troubleshooting. Code Explanation Phase Section 001, 002, 007 Recording paper jam C, D 4.3.8.
Page 91 4.3.1. Information Codes: 400, 420 START START Enable the monitor Is reception from a speaker. (Refer to Sect. reference unit 5.1 Parameter No. 008) successful? Check the line connection from the wall jack to the "Line" on the MJR PCB. Perform a transmission test to the remote unit in question.
Page 92 4.3.2. Information Codes: 401, 402, 422 402, 422 START Is Communication with the reference unit successful? Replace the SC PCB. Check the remote unit in question. (Remote unit is defective) START Is the ID Number programmed into your machine? Program the ID Number. Is the Receiving unit set up for Selective Receive? Check the Selective Receive...
Page 93 4.3.3. Information Codes: 404, 405, 407 START Is communication with reference unit successful? 1. Replace the MJR PCB. 2. Replace the SC PCB. Change Function Parameter #010: Reduce Tx Attenuation Level Does the problem still occur? Does the problem still occur? Check the telephone line condition.
Page 94 4.3.4. Information Code: 416 START Is communication with the reference unit successful? 1. Replace the MJR PCB. 2. Replace the SC PCB. Change Function Parameter #011: Reduce Rx Sensitivity Level Does the problem still occur? Does the problem still occur? Check the telephone line condition.
Page 95 4.3.5. Information Codes: 408, 409, 417, 418, 490 START Is communication with the reference unit successful? 1. Replace the MJR PCB. 2. Replace the SC PCB. Transmitting Is the unit transmitting or receiving? Does the problem still occur? Receiving Change Function Change Function Parameter #010: Reduce Parameter #071: Increase...
Page 96 4.3.6. Information Code: 434 START Is communication with the reference unit successful? Replace the SC PCB. Does the trouble occur regardless of the remote unit? Check the remote unit in Can the transmitter in question transmit to the question. (Remote unit is defective) other units? The telephone line may have a high level of white noise...
Page 97 4.3.7. Information Codes: 459, 494, 495 START Check the line connection between the telephone jack on the wall and the MJR PCB. Is communication with the reference unit successful? 1. Replace the MJR PCB. 2. Replace the SC PCB. Does the problem still occur? Check the telephone line condition.
Page 98 4.3.8. Information Codes: 001, 002, 007 (Recording Paper Jam) START Is the recording paper size and thickness within specification? Replace with correct paper. Is the recording paper loaded in the Cassette properly? Load the paper correctly. Is the paper cassette functional? Replace the paper cassette.
Page 99 4.3.9. Information Code: 010 (No Recording Paper) START Is the Paper Cassette seated properly Reseat the cassette. Is the recording paper loaded in the cassette? Load the paper. Is the No Paper Actuator operational? Replace the Actuator. Is the No Paper Sensor operational? Replace the No Paper Sensor.
Page 100 4.3.10. Information Codes: 030, 031 (Document Jam) START Is the document path blocked? Remove the blockage. Does the Tx Motor rotate? 1. Replace the Tx Motor. 2. Replace the SC PCB. Does the document feed into the unit? Check all gears and rollers. Does the voltage on A-Point and B-Point Sensor Pin 2 of PNL1 PCB, vary between 0 and +5V...
Page 101 4.3.12. Information Codes: 403, 411, 414, 415 (Polling Operator Trouble) 403, 411, 414 START START Inform the remote side Review the polling operation (receiving side) that their referring to the Operating machine does not have Instructions. polling transmission capability. Does the remote side have polling transmission capability? Is the remote side set to...
Page 102: Printed Copy Quality Problems
4.4. Printed Copy Quality Problems 4.4.1. Black Copy START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the Toner Cartridge operational? Replace the Toner Cartridge. Is the Power Supply Unit normal? 1. Check all connectors and voltages on the Power Supply Unit.
Page 103: Blank Copy
4.4.2. Blank Copy START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the Toner Cartridge operational? Replace the Toner Cartridge . Are there any foreign particles or stains on the BTR? 1. Clean the BTR with a soft, dry cloth.
Page 104: Vertical White Lines
4.4.3. Vertical White Lines START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the recording paper damp? Replace the recording paper. Is the Toner Cartridge operational? Replace the Toner Cartridge . Are there any foreign particles or stains blocking the Laser Beam path? 1.
Page 105: Ghost Images
4.4.4. Ghost Images A A A START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the recording paper damp? Replace the recording paper. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are there any foreign particles or stains on the BTR? 1.
Page 106: Vertical Dark Lines
4.4.5. Vertical Dark Lines START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are there any foreign particles or stains on the BTR? 1. Clean the BTR with a soft, dry cloth.
Page 107: Horizontal Dark Lines
4.4.6. Horizontal Dark Lines START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are there any foreign particles or stains on the BTR? 1. Clean the BTR with a soft, dry cloth.
Page 108: Dark Background
4.4.7. Dark Background START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the recording paper damp? Replace the recording paper. Is the Toner Cartridge operational? Replace the Toner Cartridge. Is the Laser Unit (LSU) normal? Replace the Laser Unit (LSU).
Page 109: Light Print
4.4.8. Light Print START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the recording paper damp? Replace the paper. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are there any foreign particles or stains blocking the Laser Unit path? 1.
Page 110: Horizontal White Lines
4.4.9. Horizontal White Lines START Is the printout in Service Mode 3 normal? Check the Scanner mechanism. Is the recording paper damp? Replace the recording paper. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are there any foreign particles or stains on the BTR? 1.
Page 111 4.4.10. Improper Fusing (Printed image does not bond to the paper) START Is the recording paper damp? Replace the recording paper. Is the Fuser Unit normal? Replace the Fuser Unit. (See Note) Note: Replace the entire Fuser Unit when the Thermostat, the Thermal Fuse or the Thermistor Assembly becomes an open-circuit.
Page 112: Voids In Solid Areas
4.4.11. Voids in Solid Areas START Is the recording paper damp? Replace the recording paper. Is the Toner Cartridge operational? Replace the Toner Cartridge. Are the Fuser and Pressure Roller surfaces clean? Clean or replace the rollers.
Page 113: Black Dots
4.4.12. Black Dots START Is the Toner Cartridge operational? Replace the Toner Cartridge. Are the Fuser and Pressure Roller surfaces clean? Clean or replace the rollers.
Page 114: Recording Paper Creases
4.4.13. Recording Paper Creases START Is the recording paper damp? Replace the recording paper. Are there any foreign particles or stains in the paper path? Remove any obstructions and clean the paper path. Is the recording paper skewing? Ensure the paper is set under the Paper Separation Clips in the Cassette.
Page 115: Poor Printed Copy Quality
4.4.14. Poor Printed Copy Quality START Is the Test Pattern printout in Service Mode 3 normal? 1. Replace the SC PCB. 2. Replace the Laser Unit (LSU). 3. Replace the Power Supply Unit. 4. Replace the Toner Cartridge . Make a local copy. Is the printed copy correct? Check the Transmission Block (CN30 on the CCD PCB and CN7 on...
Page 116: Abnormal Printing
Is the recording paper size and thickness within specification? Replace with correct paper. Is a Panasonic Toner Cartridge being used? Replace with a Panasonic Toner Cartridge. Are all switches and sensors operating properly? Adjust, clean or replace. Are there any foreign particles...
Page 117: Scanned Copy Quality Problems
4.4.16. Scanned Copy Quality Problems START Is the LED Array abnormal? Replace the LED Array. Are there any foreign particles or paper pieces in the scanning area? Remove the foreign particles or paper pieces from the scanning area. Is the scanning area dirty? 1.
Page 118: Document Feeder (Adf)
4.5. Document Feeder (ADF) 4.5.1. No Document Feed START Is the document set properly? Set the document properly. Is the document thickness or size within specification? Make a copy or cut the document to the specification size. Is the "Pi.." tone generated when the document is set? Does the ADF Sensor actuator move smoothly?
Page 119: Document Does Not Feed Or Multiple Feeds
4.5.2. Document does not feed or Multiple feeds START Is the Control Panel Unit locked? Close the Control Panel Unit firmly. Is the adjustment of the Separation Rubber normal? Is the Separation Rubber worn out? Clean or adjust the Separation Rubber Pressure (Sect.
Page 120 4.5.3. Document Jam (030) or Skew START Is the Control Panel Unit closed? Close the Control Panel Unit firmly. Do all sensors on the PNL1 PCB operate normally? Clean or replace PNL1 PCB. Does the Feed Roller have drive and sufficient friction? Clean the surface of roller with isopropyl alcohol (Sect.2.2.4).
Page 121: Communications
4.6. Communications This section explains general troubleshooting procedures for the 400 series of Information Codes. These errors are primarily caused by poor telephone line quality (loss, noise, echo, etc.). This unit is furnished with Service Mode 1 to assist in troubleshooting line quality problems. It is suggested that both the transmitting unit and receiving unit be adjusted.
Page 122: Poor Transmitted Copy Quality
4.6.2. Poor Transmitted Copy Quality START Make a copy. Is the printed copy normal? Is the LED Array lit? Does CN1, pin 1 on the SC PCB measure +24 VDC? Replace the LVPS. Does nLEDON go Low when the scan starts? Replace the SC PCB.
Page 123: Dialing Problems
4.6.3. Dialing Problems START Does the unit proceed to Phase B? 1. Set documents on the ADF correctly. 2. Check the telephone line connection. 3. The called party is busy. 4. Refer to Sect. 4.6. Are you using One-Touch or ABBR dialing? Check the registered telephone number.
Page 124: Transmission Problems
4.6.4. Transmission Problems START Does the ID display? 1. No ID function at the remote unit. 2. The ID is not set for the remote unit. Does the Verification Stamp operate? 1. Set "STAMP=ON" 2. Check CN3 (SC PCB). 3. Replace the Stamp Solenoid. 4.
Page 125: Reception Problems
4.6.5. Reception Problems START Does the machine answer the Ringing signal? 1. Set "RCV = AUTO" 2. Check that all covers are closed firmly. 3. Check the telephone line connection. 4. Check the Ringer Timing or DRD setting. 5. Check the recording paper path. 6.
Page 126: Polling Problems
4.6.6. Polling Problems START Is Polling reception OK? 1. Set the same polling password as the other party is using. 2. Check the password of the remote unit. Is Polling transmission OK? 1. Set the polling password or no - check mode.* 2.
Page 127: Information Codes Table (For Facsimile)
4.7. Information Codes Table (For Facsimile) Fax Information Codes Code Mode Phase Description of Problem Cause C, D Leading edge of the recording Recording paper jam. COPY paper fails to reach the Timing Timing Sensor abnormal. Sensor. (1st Cassette) C, D Leading edge of the recording Recording paper jam.
Page 128 Fax Information Codes Code Mode Phase Description of Problem Cause Decoding process is not completed Defective SC PCB. at the end of phase C. Interface error occurred between Modem is defective. (SC PCB) the CPU and modem. Software problem occurred. (SC PCB) System fault.
Page 129 Fax Information Codes Code Mode Phase Description of Problem Cause Transmitter received RTN after it Receiver receives data with error. (Line transmitted EOP, MPS, or EOM. quality is poor) Receiver is defective. (Modem, etc.) SC PCB or MJR PCB are defective. Transmitter receives PIN after it Receiver receives data with error due to transmitted a post message, such...
Page 130 Fax Information Codes Code Mode Phase Description of Problem Cause 434 XMT or RCV CD (response from Modem) did Remote unit is defective. not turn OFF within 180 sec. after SC PCB or MJR PCB are defective. receiver detected FLAG signal. G3 RX DCN received after transmitting Transmitter is defective or incompatible.
Page 131 Fax Information Codes Code Mode Phase Description of Problem Cause RCV ECM Transmitted PIN after receiving Line is faulty and Operator Call EOR. requested by RX side. Password or machine code did not match during remote diagnostic communication. Remote unit did not have the remote diagnostic function.
Page 132: Diagnostic Codes (For Facsimile)
DATE TIME DIAGNOSTIC 00:00'42 123 456 789 01:55 C8649003C0000 1st digit 13th digit - PANASONIC PANAFAX UF-790 ********************************** - PANAFAX UF-790 - ****** -12345678901234567890- ******* 1st Digit: Manufacturer Code -: Not used/defined Fax Diagnostic Codes Definition Data Manufacturer Code Casio...
Page 133 2nd Digit -: Not used/defined Fax Diagnostic Codes Definition Data ID (TSI, CSI, CIG) STOP Button Received Received Received Received Received Received Received Received Received Received Received Received Pressed Received Pressed Received Pressed Received Received Pressed Received Pressed Received Received Pressed Received Received...
Page 134 4th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Scanning Rate Resolution 20 ms/line 5 ms/line 10 ms/line 40 ms/line 0 ms/line 20 ms/line Fine 5 ms/line Fine 10 ms/line Fine Fine 40 ms/line Fine Fine Fine 0 ms/line Fine 5th Digit -: Not used/defined...
Page 135 6th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Password Polling XMT/RCV Selective Comm. Comm. 7th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Sub-Address Confidential Turnaround Relayed Comm. Comm. Comm. Polling...
Page 136 8th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Advanced Cover Sheet Comm. Report XMT Check & Call Memory Transfer Report XMT Check & Call Memory Transfer 9th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Standard/ Non- Short Protocol Standard Standard...
Page 137 10th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Coding 11th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Symbol Rate V.34 (V.34) 2400 sr 2800 sr 3000 sr 3200 sr 3429 sr...
Page 138 12th Digit -: Not used/defined Fax Diagnostic Codes Definition Data Modem Speed Modem Speed (V.34) 2400 bps 4800 bps 2400 bps 7200 bps 4800 bps 9600 bps 7200 bps TC 7200 bps 9600 bps TC 9600 bps 12000 bps 12000 bps 14400 bps 14400 bps 16800 bps...
Page 139: Service Modes
5 Service Modes 5.1. Service Modes (For Facsimile) 5.1.1. Service Mode Table The following service modes are provided to assist you in setting operational functions of the unit and determining the condition of the unit. Service Mode Description Function Parameter Setting Allows changes to the function parameters (the home position, etc.).
Page 140 5.1.2. Service Mode 1 (Function Parameter Setting) Use the following procedure to change the function parameters. Service Mode 1 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO. OR Press “MONITOR”...
Page 141 Function Parameter Table Parameter Selections Function 000 MON/TEL DIAL 1 = Monitor Selects whether the machine starts to TX 2 = TEL/DIAL automatically during On-Hook dialing. Monitor : Start to TX after pressing START TEL/DIAL : Start to TX automatically 001 ALARM STATUS 1 = OFF Selects the No Paper or No Toner alarm status.
Page 142 Function Parameter Table Parameter Selections Function Not Used 017 TX START 1 = 2400 bps Selects the transmission modem start speed, 14400/ 2 = 4800 bps 12000/TC9600/TC7200/9600/7200/4800/2400 bps. 3 = 7200 bps Note: This parameter is applicable only when 4 = 9600 bps communicating with regular G3 machines.
Page 143 Function Parameter Table Parameter Selections Function 030 CED & 300 bps 1 = 75 ms Selects the pause interval between the CED and the 2 = 1 sec 300 bps signal. (Used when Echo Suppression is disabled.) 031 RTC = EOLx12 1 = Off (EOLx6) Selects the RTC signal, EOLx6 or EOLx12.
Page 144 Function Parameter Table Parameter Selections Function 050 RING DETECT 1 = Normal Selects the quality of ringer detection. Use if the line MODE 2 = Rough signal is out of regulation, set to "Rough" so that the unit may detect the ringing signals. 051 Not Used 052 PULSE RATE 1 = 10 pps...
Page 145 Function Parameter Table Parameter Selections Function 070 LINE ERROR 1 = 128 lines 1. Selects the line disconnect condition during 2 = 256 lines reception. If the number of line errors exceed this 3 = 512 lines setting, the unit will disconnect the line. 4 = 1024 lines 2.
Page 146 • In Busy Selects the signal timing between the BUSY and TIMING • After Busy ACK signal in Printer Interface Mode. (Except UF-580/ • While Busy 780) 131 CMD RCV GRD 1 min. Selects the Guard Timer between each GDI TIMER Command in Printer Interface Mode.
Page 147 Note 4: Continuous Polling (Station Mode) This feature allows you to store or add documents into a polled file in memory. To enable the Continuous Polling feature set Function Parameter No. 003 to "2:Station". The Program Key [P4] will be assigned with the "Store-4-Polling" name automatically and cannot be changed. To prepare the document(s) to be polled, simply place the document(s) on the ADF and then press the Program Key [P4] to store or add the document(s) into a polled file.
Page 148 5.1.3. Service Mode 3 (Printout of Lists, Reports and Test Results) From this Service Mode you can print the Function Parameter List, Page Memory Test, Printer Report, All Document File, Protocol Trace and the Toner Order Form. 5.1.3.1. Function Parameter List A list of all Function Parameters can be printed by the following procedure.
Page 149 047 RESPONSE WAIT:[60] 60 sec 097 ---------- 048 --------- 098 ---------- 049 --------- 099 ---------- Note:The power must be reset for the new parameter settings to take effect. - PANASONIC - ******************************** - PANAFAX UF-790 - ******* - 12345678901234567890 -*********...
Page 150 198 ---------- 149 ---------- 199 ---------- Note:The power must be reset for the new parameter settings to take effect. -PANASONIC - ******************************** -PANAFAX UF-790- ****** -12345678901234567890- *********** Note: 1. [ ] - Factory Default 2. The contents of the Function Parameter List may vary depending on the destination’s regulations.
Page 151: Lcd Display
5.1.3.2. Page Memory Test A test pattern prints out for checking the page memory and the printer mechanism using the following procedure. Service Mode 3 - Page Memory Test Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO.
Page 152 5.1.3.3. Printer Report All printer errors are logged on the Printer Report which can be printed by the following procedure. Service Mode 3 - Printer Report Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO.
Page 153 : UF-790 AAV1xxxxAU TRANSMIT COUNTER : 000475 RECEIVE COUNTER : 000398 COPY COUNTER : 001083 PRINT COUNTER : 001575 PRINT ERROR 1.MMM-dd-yyyy 15:38 NO.001-12 2.MMM-dd-yyyy 10:48 NO.001-11 3.MMM-dd-yyyy 15:23 NO.004-36 PANASONIC ****************************** - PANAFAX UF-790 - ***** - 12345678901234567890 - ******...
Page 154 1. Printer Error Code Table Error Description of Problems Cause Code 00 No problem detected. 11 Timing Sensor did not turn ON within a 1. Recording Paper misfeeding, Paper Feed certain period of time. Roller defective. (Original Cassette Feeder) 2. Drive Clutch defective. 3.
Page 155 Error Description of Problems Cause Code 64 Unit detected “No Cassette”. 1. Cassette not installed or partially open. 2. Cassette Sensor defective. 65 Unit detected “Out of Paper”. 1. The Paper Cassette is empty. 2. Paper Detect Sensor defective. 81 No response from LP Controller. 1.
Page 156: Printer Error Detail Explanation
2. Printer Error Detail Explanation Recording Paper Jam Detection Feed Solenoid (nADF1) (CN14, 2) Recording Paper A sec Size Setting Legal Letter Timing Sensor (nRSEN) 1.35s Timing Sensor did not turn ON E001 will be logged when nRSEN does not go low 0.55s between 0.55 sec to 4.5 sec 4.5s...
Page 157 Fuser Error Detection ( C) E26 will be logged. E24 will be logged if Thermistor detects 180 C for more than 3 sec. (Thermostat will open.) E23 will be logged if Thermistor detects 175 C or higher for 5 min. after Fuser Lamp is turned Off.
Page 158 Laser Unit (LSU) Error Detection nPRNT Print Start nPMON (CN69-3) Tetragon Motor ON nPMRY (CN69-2) Normal Condition Tetragon Motor Ready Motor ON 3 sec 20 sec nPMRY Tetragon Motor does not reach constant speed during wake up state. nPMRY does not go low for more than 2 sec during 3 sec to 20 sec after nPMON goes low.
Page 159 Out of Toner Detection Toner Sensor Output Signal Status A (Enough toner in the cartridge) Max. - min. voltage is less than 1.0V Min. voltage is more than 1.4V Status B (Remaining toner is getting low) Max. - min. voltage is less than 0.25V Min.
Page 160 5.1.3.4. All Document Files Print the document files from the Flash Memory. Service Mode 3 - All Document Files Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO. OR Press “MONITOR”...
Page 161 5.1.3.5. Protocol Trace Print a Protocol Trace Report for the previous communication. Service Mode 3 - Protocol Trace Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO. OR Press “MONITOR” four times, then press “*”. SERVICE MODE ENTER NO.
Page 162 : TSI 2B 20 20 20 38 37 2B 2B 2B 2B 39 38 36 36 35 34 37 38 38 30 DCS 00 C6 F8 44 COMMAND LOG. REMOTE : NSF LOCAL PPS-EOP ------------------------------------------------------------------ REMOTE : MCF LOCAL -PANASONIC- ************************************ -PANAFAX UF-790- ***********-12345678901234567890-******...
Page 163 5.1.3.6. Toner Cartridge Order Form The Toner Cartridge Order Form can be printed out manually by the following procedure. Service Mode 3 - Toner Cartridge Order Form Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO.
Page 164 For USA and Canada ************************************* > TONER CARTRIDGE ORDER FORM < ************************************* **** The toner supply in your facsimile machine is running low **** (1) To order a replacement Cartridge from your Authorized Dealer Panafax Corp. (2) by Phone: 1 201 111 5555 (3) by Fax: 1 201 111 4444 (4) Thank you for your order.
Page 165 Up to 25 digits (3) Order Tel # Up to 36 digits (4) Order Fax # Up to 36 digits (5) Customer ID Up to 16 characters (User Identification Code) (6) Toner Cartridge # UG-3350 (For Other Destinations) for UF-580/590...
Page 166 5.1.4. Service Mode 4 (Modem Test) 5.1.4.1. Binary Signal This Service Mode is used to check the binary signal output. Signals can be output to the line using the following procedure. Service Mode 4 - Binary Signal Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy...
Page 167 5.1.4.2. Tonal Signal This Service Mode is used to check the tonal signal output. Signals can be output to the line using the following procedure. Service Mode 4 - Tonal Signal Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION”...
Page 168 5.1.4.3. DTMF Signal This Service Mode is used to check the DTMF (Dual Tone Multi Frequency) signal output. The DTMF signal can be generated using the following procedure. Service Mode 4 - DTMF Signal Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00...
Page 169 5.1.4.4. Binary Signal (V.34) This Service Mode is used to check the binary signal output. Signals can be output to the line using the following procedure. (V.34) Service Mode 4 - Binary Signal Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00...
Page 170 5.1.5. Service Mode 5 (Diagnostic) 5.1.5.1. CCD Test This Service Mode is used to check the CCD. Use the following procedure to initiate the test. Service Mode 5 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION” and then “7”. SET MODE (1-6) ENTER NO.
Page 171 5.1.5.2. LCD / LED Test This Service Mode is used to check the LCD and LEDs on the Control Panel. Use the following procedure to initiate the test. Service Mode 5 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION”...
Page 172 5.1.6. Service Mode 6 (RAM Initialization) Initializes the RAM and restores the Function Parameters to their default values. Note: This operation should be performed when the unit is first installed. Service Mode 6 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00...
Page 173 5.1.7. Service Mode 7 (LBP Service Mode) This Service Mode is used to change printer parameters and verify printer information. Use the following procedure to change printer parameter. Service Mode 7 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION”...
Page 174 5.1.8. Service Mode 8 (Check & Call) 5.1.8.1. Overview This feature enables the Authorized Servicing Dealers to manage and improve the Fax machine maintenance to their customers by alerting them of equipment problems. It also can be used as a Supply Sales Tool by alerting the Dealer that the unit is running Low on Toner.
Page 175 Info. Printer LED/LCD Condition Content of Error Code Error Code Only Report 31,32,36 LSU Problem No response from LP 81, 82 Controller Rx Door Open Note: 1. Tx Report: S = Service Alert Report, M = Maintenance Alert Report 2. Condition : R = Receive Mode, C = Copy Mode, S = Standby Mode, T = Transmit Mode...
Page 176: Setting Operation
5.1.8.3. Setting Operation 8:CHECK & CALL PRESS SET TO SELECT SET or START SET or START CHECK & CALL (1-7) SERVICE ALERT FAX # CLEAR CLEAR 1:SVC. ALERT FAX # SET or START Enter a destination fax number for the Service Alert Report. When it is entered, the automatic transmission of the Service Alert Report becomes effective.
Page 177 Note 1. Service Alert Report To enable the automatic transmission of Service Alert Report, enter the destination fax telephone number in the “SERVICE ALERT (FAX #)” field. When a printer error occurs, the Service Alert Report is transmitted to the designated number automatically. A blank entry in this field, disables the Automatic transmission of the Service Alert Report.
Page 178: Service Alert Report Format
" mm-dd-yy 17:10 No.999-00 mm-dd-yy 12:10 No.999-00 mm-dd-yy 08:10 No.999-00 -LOGO PANASONIC ************************************ -CHARACTER ID - ***** -31415926535897932384-*********** Explanation of Contents (1) Date & Time when a problem occurred (2) Information Code (3) Printer Error Code Refer to Service Manual...
Page 179: Maintenance Alert Report Format
TRANSMIT COUNTER : 999999 (4) RECEIVE COUNTER : 999999 COPY COUNTER : 999999 PRINT COUNTER : 999999 -LOGO PANASONIC ************************************ -CHARACTER ID - ***** -31415926535897932384-*********** Explanation of Contents (1) Low Toner Message (Fixed) “MACHINE IS RUNNING OUT OF TONER” (2) Customer ID...
Page 180 5.1.9. Service Mode 9 (System Maintenance) 5.1.9.1. Overview This Service Mode is used to maintain and/or update the firmware of the machine. Use the following procedure for System Maintenance. Service Mode 9 Step Operation or Unit Condition LCD Display Standby MMM-dd-yyyy 15:00 Press “FUNCTION”...
Page 181 PC. After the firmware is updated, the machine reboots automatically and returns to standby. See Note 1. Card → Host (No Selection) FIRMWARE UPDATE (UF-580/780) Updates the firmware in the machine with the Master Firmware Card. FIRMWARE BACKUP Creates a Backup Card of the machine’s firmware.
Page 182 5.1.9.2. Operation UF-590/790 9:SYSTEM MAINTENANCE PRESS SET TO SELECT START SET or START SET or START Display card version SET or START FIRMWARE UPDATE(1-2) FIRMWARE UPDATE UF-790AAV1xxxxAU SYSTEM MAINT.(1-8) * IN PROGRESS * 1:CARD --> HOST CLEAR PRESS SET TO START CLEAR 1:FIRMWARE UPDATE CLEAR...
Page 183 UF-580/780 9:SYSTEM MAINTENANCE PRESS SET TO SELECT START SET or START Display card version SET or START FIRMWARE UPDATE UF-580AAV1xxxxAB SYSTEM MAINT.(1-8) Reboot the machine CLEAR * IN PROGRESS * PRESS SET TO START CLEAR after updating 1:FIRMWARE UPDATE * If the card is not installed, SET/START will be refused.
Page 184 (3) Remove the Memory Card Cover. Memory Card Cover (4) Insert the Flash Memory Card gently into the card slot with the Panasonic logo facing to the outside of the machine. Caution: Memory Card Installing the Flash Memory Card in the wrong direction may damage the connecting pins inside the machine.
Page 185 5.1.10.1. Send Received File This function is the relief mode which makes it possible to retrieve memory received documents during a fatal printer error by transferring the documents to another fax machine. MMM-dd-yyyy 15:00 FUNC MON X 4 SERVICE MODE ENTER NO.
Page 186: System Description
6 System Description 6.1. Mechanical Operation 6.1.1. Transmit Mechanism The Transmit Mechanism consists of components which feed, scan and eject documents, as well as send signals. These components and their functions are as follows: ADF Mechanism The ADF (Automatic Document Feeder) automatically feeds paper into the unit, and consists of ADF Roller and Separation Rubber.
Page 187 Transmit Mechanism Sensors The ADF Sensor (PC1), activated by Actuator A (224), detects the presence of documents on the ADF Tray and multiple pages. The RP (Read Point) Sensor (PC3), activated by Actuator B (225), detects the lead and trail edges of the document, controlling the reading position.
Page 188 Drive System Eject Roller (303) Feed Roller (302) ADF Roller (331) Document B55D16 Gear (312) ADF Gear (305) D17 Gear (313) D25F Drive Gear (332) Transmit Motor (324) B55D30 Gear (311) D50 Gear (314) B54B22 Gear (310) 6.1.2 Control Panel The Control Panel consists of the PNL PC Board (1004) and LCD Unit, which displays the various status messages, and a membrane-type panel.
Page 189: Printing Mechanism
6.1.3. Printing Mechanism The Receive Mechanism consists of the Laser Unit (LSU), OPC (Organic Photo Conductor) Drum, and various other parts which ensure the normal feeding of recording paper. These components and their functions are as follows: Fuser Unit (701) Paper Direction OPC Drum Feed Roller (526)
Page 190 Paper Feed Unit No. 2 (Optional) Operation The Paper Feed Unit No.1 always takes priority. The Paper Feed Unit No. 2 becomes operational only when the cassette No.1 runs out of paper and the NP Sensor is deactivated, causing the nPCHK1 output signal level to go High.
Page 191: Printing Process Operation
6.1.4. Printing Process Operation Handle Toner Waste Box Waste Toner Bias Transfer Roller Cleaning Blade OPC Drum Laser Beam Development Roller Developing Blade Toner Agitator Sweeper Hopper Mixing Blade Charge In the dark, the Bias Charge Roller (BCR) applies a high, uniform negative charge to the surface of the OPC Drum.
Page 192 TONER & INFO CODE 041” and the machine is disabled from printing any copies. The Toner Cartridge consists of OPC Drum, Bias Charge Roller, Development Roller, Developing Blade, Cleaning Blade, Mixing Blades and Toner Waste Box. The OPC Drum is an aluminum cylinder coated with an OPC (Organic Photo Conductor) sensitive material.
Page 193 monitor circuit. Collimator Lens This lens converges and focuses the laser beam, converting it to parallel light. Aperture This controls the size of the laser beam. Tetragon Mirror and Motor The tetragon scanner consists of a 4-sided mirror, directly driven by a tetragon motor, revolving at 8,898 rpm (400 dpi) or 13,347 rpm (600 dpi).
Page 194: Covers And Enclosures
Fuser Roller (709) A Teflon coated roller supplies the heat for bonding the toner to the paper. The temperature of the surface is kept constant at approximately 160°C (±5°C) or (320°F). Pressure Roller (706) This converted PFA tube Silicon Rubber Roller applies pressure to the Fuser Roller, assisting in bonding the toner to the paper.
Page 195: Electrical Circuit Explanation
6.2. Electrical Circuit Explanation 6.2.1. Fax Block Diagram...
Page 196: Signal Routing
6.2.2. Signal Routing 1. ADF Transmission MN86075 CCD PCB Laser Printer (IC30) SHINE IEEE1284 DZAC000273 Transceiver PC (IEEE1284 I/F) (IC3) (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB Image Memory V850E/MA1 (IC1) (IC10)
Page 197: Memory Reception
3. Direct Reception MN86075 CCD PCB Laser Printer (IC30) SHINE IEEE1284 DZAC000273 Transceiver PC (IEEE1284 I/F) (IC3) (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB V850E/MA1 Image Memory (IC1) (IC10) Si3021, Line...
Page 198 5. Scan into Memory MN86075 CCD PCB Laser Printer (IC30) SHINE IEEE1284 DZAC000273 Transceiver PC (IEEE1284 I/F) (IC3) (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB V850E/MA1 Image Memory (IC1) (IC10) Si3021,...
Page 199: Multiple Copies
7. Single Copy MN86075 CCD PCB Laser Printer (IC30) SHINE IEEE1284 DZAC000273 Transceiver PC (IEEE1284 I/F) (IC3) (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB V850E/MA1 Image Memory (IC1) (IC10) Si3021, Line...
Page 200 9. Report/List Printing MN86075 CCD PCB Laser Printer (IC30) SHINE IEEE1284 DZAC000273 Transceiver PC (IEEE1284 I/F) (IC3) (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB V850E/MA1 Image Memory (IC1) (IC10) Si3021, Line...
Page 201 11. PC Scanning Mode MN86075 CCD PCB Laser Printer SHINE (IC30) DZAC000273 (IC3) IEEE1284 PC (IEEE1284 I/F) Transceiver (IC40) S-DRAM 8MB (IC7) Page Line Memory Memory D-BUS Buffer FROM 2MB MODEM Program MN195006 (IC9) (IC22) FROM 2MB V850E/MA1 Image Memory (IC1) (IC10) Si3021,...
Page 202: Picture Signal Scanning Block
6.2.3 Picture Signal Scanning Block The image data read by the optical unit is input to the CCD mounted on the CCD PC Board, then transferred to the SC PC Board after the optical information is converted into an electrical signal by the CCD.
Page 203 ABC Circuit Output CCD Output IC30 IC28, 2 IC28, 1 R288 Control C175 Circuit R285 Shading Correction Circuit The Shading Correction Circuit, included in IC30, is provided to correct for reduction in LED lamp intensity around the optical lens and LED lamp intensity distortion due to shading of each bit. This circuit scans the white reference on the transmitting document plate immediately before the document reaches the scanning position and writes a compensation value according to the distortion of the waveform, at the time, into the S-RAM (IC31).When the actual picture signal is input, the circuit corrects the picture...
Page 204 6.2.4 CCD Drive Clock Generator Circuit This circuit is also contained in IC30. Its function is to generate FSG, FCK1, FCK2 and RS clock signals, which are required for driving the CCD. These clock signals are generated by the system clock generator circuit derived from the 4 MHz clock signal that is input to IC30.
Page 205: Line Monitor Circuit
6.2.5 Line Monitor Circuit The Line Monitor Circuit consists of an operational DAA (The secondary side chip) and its peripheral circuits. Its function is to monitor the dial tone, DTMF tone, response signals, etc. over the speaker. It also sounds the output of the key touch tones, alarm tones, etc. from the panel CPU over the speaker. The Received Signals are output from DAA of Secondary circuit, and through Analog AGC, Electronic Volume, Amplifier and over the speaker.
Page 206: Transmit Motor Control Circuit
6.2.6 Transmit Motor Control Circuit The transmit motor is a PM type, two-phase bi-polar motor. The stepping signal and chopping current control signals (pTAPH, pTBPH, pTA10, pTA11, pTB10 and pTB11) are sent to the chopper drive circuit, comprised of IC36, IC37 and its peripheral circuitry, from IC3 SHINE output port. The motor is powered by +24 VDC and is driven by a 1/2-phase excitation, and greater step division is provided by controlling the phase circuit in steps (micro-step control).
Page 207 6.2.7 Line Control Circuit The Line Control Circuit consists of CML relay, DP circuit, DAA (Direct Access Arrangement), Ring Detect Circuit for power-save and DC hold circuit. A Jack for an external telephone, which can be used for either an external telephone or an optional Handset Kit. The block diagram of the Line Control Circuit is shown below.
Page 208 Dial Pulse Generator The Dial Pulse Generator consists of a CML relay, a DC hold circuit, a dial pulse generate circuit and their peripheral circuits. The generator generates dial pulses. The CPU on the SC PC Board controls all dial pulse generation sequences.
Page 209 6.2.8 SNS PC Board Each sensor consists of an LED and photo transistor. When documents are placed on the ADF tray or are moving, a shutter in the document sensor opens. The light from the LED turns the photo transistor “ON”, and the output voltage from the sensor becomes a “Low”...
Page 210 6.2.9 Control Panel The Control Panel consists of the Display PCB and Panel Unit, which display various status information.It is normally interfaced to the main CPU. Keyed input signals are received by the Panel CPU and the data is transferred to the main CPU on the SC PC Board. The Control Panel performs the following processes simultaneously: •...
Page 211: Printer Motor Drive Circuit
6.2.10 Printer Motor Drive Circuit Motor Drive Circuit The Printer Motor is a 4-phase uni-polar PM-type step motor. The step signals (pMMP0A to pMMP3A) are transmitted to IC38 (the Chopper Drive Circuit) from IC3 SHINE output ports. The chopper current is determined by the voltage at IC38, Pin3 and Pin13.
Page 212 Fuser Lamp Drive Circuit The Fuser Lamp is powered by 100 VAC (200 VAC). It is driven by the LVPS and controlled by the nSSR signal from the SC PC Board. When the CN103, Pin11 (nSSR) on the LVPS goes LOW, the Fuser Lamp turns ON.
Page 213 Fuser Temperature Control Circuit The fuser temperature is controlled by IC1 on the SC PC Board, which contains A/D (Analog/Digital) converters ANI0 to ANI7. The Fuser Temperature Control Circuit uses A/D converter, ANI1. When the PC001 drive current is transmitted from the SC PC Board to the PSU (LVPS), the Fuser Lamp turns ON. IC32 is a comparator with open output at pins 1 and 7 and is used as an abnormal temperature detection circuit.
Page 214 High Voltage Drive Circuit (Charging, Development and Transfer) High Voltage is provided through a DC to DC converter, which changes the +24 VDC supply voltage to - 650 VDC, and output approximately 0.64 KVAC (Steady current: 200 µA) for the Charging Block. The Developer Circuit converts the +24 VDC to between -300 VDC for the development bias, and outputs 1,500 VAC (p-p) at a frequency of 1.650 kHz to charge the toner.
Page 215: Interlock Safety Circuit
6.2.11. Interlock Safety Circuit This safety circuit turns OFF the +24 VDC supply voltages when the Cover is opened. When the Cover is opened, the microswitch(es) on the ILS PC Board are de-actuated, turning OFF +24 VDC to the Printer Drive Circuit, the High Voltage Power Supply, and the Paper Feed Solenoid Circuits, turning OFF the +5 VDC supply voltage for the Laser Driver circuits on the Laser Unit.
Page 216 6.2.12 Laser Unit (LSU) Control Circuit The laser control signals are described below. nLDEN The LSU is activated when this output signal is LOW. If an error occurs, the nLDEN output signal level goes High and the LSU is deactivated. nVIDEO This is the actual Data Signal.
Page 217 6.2.13 Power Supply Unit (LVPS) Block Diagram of DZEA000057...
Page 218 DZEA000057 Input Circuit AC line voltage travels to the rectifying circuit through the line filter. The line filter eliminates RFI noise which may otherwise pass to the AC line from the power supply unit. It also protects the power supply unit from transient noise which may pass into the unit from the AC line.
Page 219 The value of output voltage is Ton : ON time of Q100 Eo=d/(1-d)*Ei Ts : Period of oscillation d=Ton/Ts Equivalent circuit model for the RCC. In the equivalent circuit ; When SW is ON, current D(D102) flows (Q100) When SW is OFF, current flows The value of inductance increase current between ON period.
Page 220 Over Current Limiter (O.C.L) The +24 VDC output is limited by Ton MAX Limiter (ON time period of transistor Q100) which is part of the control circuit. The +5 VP, -5 VDC and +5 VDC outputs have over current limiters provided inside the voltage regulator.
Page 221: Exploded View & Parts List
When replacing any of these components, use only manufacturer's specified parts. 4. In New Parts column, "N" indicates part is used only in UF-580 / 590 / 780 / 790 model, "C" indicates part is used in previous models. Code...
Page 222: Cover Assembly
- - 1 - - - 1 - - - - 1 - - - - - 1 1 1 - 1 1 1 1 1 1 1 1 1 DZMC000773 Cover, SNT For UF-580/780 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1011 PC Board, SRU See Sect.
Page 223 (OPTIONAL) CN14 2 2 2 1011 1016 Fig. 1: Cover Assembly...
Page 224: Control Panel Unit
DZMC000790 1 - - 1 - - - - - - - - - - - - - - - - - - - - - - - - - - For UF-580/780 DZMC000791 - - - - - - - - - - - - - 1 - - - - - - - - - - - - - - - -...
Page 225 DZNA000969 1 - - 1 - - - - - - - - - - - - - - - - - - - - - - - - - - For UF-580/780 DZNA000970 - - - - - - - - - - - - - 1 - - - - - - - - - - - - - - - -...
Page 226 2 2 2 CN14 1026 1004 Fig. 2: Control Panel Unit...
Page 227: Transmitter Assembly
7.4. Transmitter Assembly Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX Mark Parts DZJB000105...
Page 228 2 2 2 1020 1014 1019 1022 Fig. 3: Transmitter Assembly...
Page 229: Electrical Parts
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 DZJA001160 For UF-580/780 1 1 - 1 1 1 1 - 1 1 1 1 1 1 - 1 1 - 1 1 1 1 1 - - 1 - - 1 -...
Page 230 CN57 1006 1005 2 2 2 1021 1003 1001 1002 Fig. 4: Electrical Parts...
Page 231: Base Unit
7.6. Base Unit Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX Mark Parts DZJA000587...
Page 232 UF-580/590 1031 1031 2 2 2 to Fig.6 CN59 1024 CN68 1018 1009 CN202 1010 SNS1 1032 CN80 1023 1030 CN69 CN56 Fig. 5: Base Unit...
Page 233: Paper Transportation
7.7. Paper Transportation Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX Mark Parts DZJF000353...
Page 234 SNS2 CN82 SNS4 CN85 1030 1029 1008 to Fig.7 2 2 2 CN201 1033 to Fig.5 1025 Fig. 6: Paper Transportation CN54...
Page 235: Fuser Unit
Purchaser of those countries are requested to order the Fuser Unit Assy (DZHP006152) instead of this part. Countries subject to embargo are: Cuba, Iran, Iraq, Libya, North Korea, Syria and the Sudan. This list is subject to change without further notice from Panasonic Communications Co., Ltd.
Page 236 CN58 SNS1 1017 CN81 1029 2 2 2 CN52 1007 CN102 1028 to Fig.6 Fig. 7: Fuser Unit...
Page 237: Cassette
7.9. Cassette Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX Mark Parts DZJF000359 Frame, Cassette Base...
Page 238 2 2 2 Fig. 8: Cassette...
Page 239: Optional Cassette (Except Uf-580/780)
7.10. Optional Cassette (Except UF-580/780) Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX...
Page 240 L5_H11/3/19 CN66 2 2 2 1034 1012 1013 1035 Fig. 9: Optional Cassette...
Page 241: Pc Board / Harness
DZEC102765 - - - - - - - - - 1 - - - - - - - - - - - - - - - - - - - - For UF-580/780 DZEC102766 The Part Number depends on each...
Page 242 Safety Ref. Part Number Part Name Remarks AA AB AE AG AH AJ AK AL AM AP AR AT AU AV AW EE EN YA YC YF YG YH YJ YM YR YS YT YV YW YX Mark Parts DZEC101999 1 1 - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 1 1 The Part Number depends on each 1004...
Page 243 CN52 CN58 CN59 CN14 CN57 1021 1015 1016 1017 1018 1019 1020 1026 1001 CN53 CN50 1015 1026 1004 1022 CN69 2 2 2 1023 CN68 1024 CN56 CN54 1025 SNS4 1007 1027 1034 1003 1005 1006 CN73 CN20 CN18 CN66 1021 1109...
Page 244: Packing And Accessories
- - - - - - - - - - - - 1 - - - - - - - - - - - - - - - - - DZRB000789 For UF-580 1 1 - 1 1 1 1 - 1 1 1 1 - 1 - 1 1 - 1 1 1 1 1 - - 1 - - 1 -...
Page 245 - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 - - 1114 DZRQ000058 CD (O/I) For UF-580 - - - - - - - - - - - - - - - - 1 - - - - - - - - - - - - - DZSH000112...
Page 246 1109 1105 1107 1108 1113 2 2 2 1114 1102 1115 1112 1111 1102 1110 1117 1101 1103 1102 1102 Fig. 11: Packing and Accessories...
Page 247: Installation
8 Installation The following Instructions are examples for UF-790. Please refer to the appropriate Operating Instructions for additional details. 8.1. Function Key Any function can be started by first pressing and then enter the function number, or by FUNCTION pressing scroll key repeatedly until the desired function appears on the display.
Page 248: Main Unit And Accessories
8.2. Main Unit and Accessories Unpack the carton and check that you have all the accessories illustrated. Toner Cartridge Recording Paper Tray Machine Operating Instructions Telephone Line Cable Power Cord CD-ROM TSM Success Manual (Except UF-580/780) (For Euro only)
Page 249: Installing The Accessories
8.3. Installing the Accessories Final Installed View Recording Paper Tray Hook the projections into the square holes on the machine. Handset [Available as an Option] Handset Cord Handset Cradle [Available as an Option] [Available as an Option] Hook the projections into the square holes on the machine. Connect the cable into the HANDSET jack on the machine.
Page 250: Installing The Toner Cartridge
8.4. Installing the Toner Cartridge Unpack the Toner Cartridge and rock it back and forth as shown 5 or 6 times to even the Toner Cartridge toner inside. Remove the protective seal. Note: Pull on the seal slowly and straight out Open the Printer Cover.
Page 251 Align the projections on both sides of the Toner Cartridge with the grooves in the machine as shown and insert the Toner Cartridge into the machine. Note: Lock the Toner Cartridge into place by pressing the handle down and then pushing towards the rear of the machine.
Page 252: Cleaning The Printer Roller
Cleaning the Printer Roller If you find toner on the back of the recording paper, the printer roller in the fuser unit is probably dirty. To clean the Printer Rollers MAINTENANCE (1-9) ENTER NO. OR * PRINTING * CLEANING CHARTS The machine will print out 3 Cleaning Charts.
Page 253: Loading The Recording Paper
8.5. Loading the Recording Paper How to Load the Recording Paper Lift up the Paper Cassette slightly and slide it out from the machine. Paper Cassette Remove the Paper Cassette Cover. Cassette Cover 1. Remove the Shipping Screw securing the Pressure Plate. 2.
Page 254 1. Load the paper into the Paper Cassette. Slide the paper width guide to the left Max. Paper until it lightly touches the stack of paper Capacity Mark without bending the paper. The paper must fit squarely and firmly between the Paper Width Guide and the right side of tray.
Page 255: Adjusting The Paper Cassette For The Paper Length
8.6. Adjusting the Paper Cassette for the Paper Length How to Adjust the Paper Cassette for the Paper Length The factory default Paper Length setting for the Paper Cassette is on Letter size for USA and Canada, A4 size for other destinations. To change the paper length to other size, follow the steps below. 1.
Page 256: Adjusting The Paper Cassette For The Paper Width
8.7. Adjusting the Paper Cassette for the Paper Width How to Adjust the Paper Cassette for the Paper Width The factory default Paper Width setting for the Paper Cassette is on Letter/Leagal size for USA and Canada, A4 size for other destinations. To change the paper width to other size, follow the steps below. 1.
Page 257: Connecting The Telephone Line Cable And Power Cord
8.8. Connecting the Telephone Line Cable and Power Cord Power Cord Plug one end of the power cord into an ordinary 3 prong AC outlet and the other end into the receptacle on the rear of the machine. Warning: This apparatus must be properly grounded through an ordinary 3 prong AC outlet. Do not break off the earth (ground) prong to fit a 2 prong outlet.
Page 258: Customizing Your Machine
8.9. Customizing Your Machine General Description Your fac simile machine has a variety of adjustabl e Fax Pa rameter s. Thes e parameters, listed in the Parameter Table, are pr eset for you a nd d o not need to be ch ang ed. If you do want to mak e a change , read th e table careful ly.
Page 259: Fax Parameter Table
Fax Parameter Table Setting Parameter Setting Comments Number CONTRAST Normal Setting the home position of the CONTRAST key. Lighter Darker RESOLUTION Standard Setting the home position for the RESOLUTION. Fine S-Fine Halftone (Fine) Halftone (S-Fine) STAMP Setting the home position of the STAMP key. To select the stamp function when document is stored in memory, see Fax Parameter No.
Page 260 Setting Parameter Setting Comments Number OPERATOR CALL Selecting the length of time that your machine signals TIMER sec. (rings) for an incoming voice call in Fax/Tel Auto Switching mode. sec. sec. sec. Setting for the OGM length of your TAM from 1 to 60 OGM LENGTH sec.
Page 261 Selecting whether or not the machine accepts remote reception command. Valid REMOTE Invalid Selecting whether or not the machine accepts to update DIAGNOSTIC the firmware or Remote Diagnostics from the remote Valid station. Please ask your Panasonic Authorized Dealer for details.
Page 262 Parameter Setting Comments Number DIAGNOSTIC (----) Setting the password for Remote Diagnostic Mode. PASSWORD Please ask your Panasonic Authorized Dealer for details. SUB-ADDRESS (----) Setting a 20-digit password for secured sub-address PASSWORD communication. FAX FORWARD Invalid Selecting whether the machine performs Fax Forwarding to the specified destination.
Page 263: Options And Supplies
Options and Supplies Options and Supplies Please contact your local Panasonic dealer for availability. 1. Options Order No. Picture Description UE-403176 Handset Kit 250 Sheet Letter / Legal / A4 Size Paper UE-409070 Cassette with the Feeder Unit (Not available for UF-580/780)
Page 264: Installing Optional 250 Sheet Paper Cassette (Ue-409070)
Installing Optional 250 Sheet Paper Cassette (UE-409070) 1. Contents Qty. Description Part No. Remarks 250 Sheet Paper Cassette with Feeder Unit UE-409070 2. Installation Note: Install this Feeder Unit as the 2nd Feeder Unit only. (1) Disconnect the Telephone Line Cable (1009) and the Power Cord (1008).
Page 265 (12) Insert the 250 Sheet Paper Cassette into the machine. (12) (13) Secure the 250 Sheet Paper Cassette with the 4 screws removed in step 10. (14) Place the machine upright. (15) Connect the CST2-SNS2 Harness (1035) into (15) the Connector CN66 on the SC PC Board. (13)x4 (16) Re-install the Connector Access Cover (114).
Page 266: Installing Handset Kit (Ue-403176)
Installing Handset Kit (UE-403176) 1. Contents Qty. Description Part No. Remarks Handset DZDU000031 Handset Cord DZFN000066 Cradle Assembly DZML000436 2. Installation (1) Disconnect the Power Cord (1108) and the Telephone Line Cable (1109). (2) Break off the protective tab on the TEL/HAND- SET Jack on the machine.
Page 267: Schematic Diagram
EXT .TEL (T1) 2MB,4MB,8MB *:Option nCE1 CNJ20 nCE2 (T2) nMB4 (L2(T)) * SRU LINE (L1(R)) USA,CAN:DZEP000499 Others :DZEP000168 (T1) (68pin) (A32-068-020-BGBB) nWEL RDY/nBSY nWEH DZEP000635 (Continue next page) Model Drawing Name General Circuit UF-580 / 590 780 / 790 Diagram (1/2)
Page 268 TONER No paper sensor T oner sensor CNA1003 CNP66 FAP8725 TONER (B7B-PH-K-M) (UF-580/780: Not Mounted) CNP84 (S-3B-ZR-SM3A-TF) FAP8724 (B3B-PH-K-S) * Optional 2nd Cassette (Not available for UF-580/780) DZFAP8730 DZEP000406 CNP82 DZEP000377 Pick-up (B7B-PH-K-M) CNP74 (B3B-PH-K-M) Solenoid +24VM CST2 CNP70 nCCHK2...
Page 269: Sc Pc Board
10.2. SC PC Board Model Drawing Name UF-580 / 590 SC PC Board (1/14) 780 / 790...
Page 270 Model Drawing Name UF-580 / 590 SC PC Board (2/14) 780 / 790...
Page 271 A[13] I/O15 A[17] D[15] A[14] A[18] I/O16 A[15] A[19] A[16] A[20] N.C. N.C. A[21] N.C. # Not mounted 16Mbit 32Mbit FROM MBM29LV160B MBM29DL32XBD Not mounted Mounted JP26 Model Drawing Name UF-580 / 590 SC PC Board (3/14) 780 / 790...
Page 272 DV[13] RA12 RA16 RA20 D[14] DD[14] D[14] DV[14] RA12 RA16 RA20 D[15] DD[15] D[15] DV[15] RA12 RA16 RA20 TC74VHC245FT RA22 RA24 RA26 RA28 DD[15-0] 003:C3;005:B1;014:B4 DV[15-0] 008:D4;014:C1 Model Drawing Name UF-580 / 590 SC PC Board (4/14) 780 / 790...
Page 273 Model Drawing Name UF-580 / 590 SC PC Board (5/14) 780 / 790...
Page 274 +5VP 007:C3 pHKOF DTC114EKA Gi:30min pHKOF CN18 nWAKUP 012:B3 2SC2412K R214 *5:mounted when having the function, the hook-off detection of the handset in the saving energy mode. Model Drawing Name UF-580 / 590 SC PC Board (6/14) 780 / 790...
Page 275 1000pF R240 nREVCK CN17 nREVCK 001:D1 C143 50.0V 1000pF AGND CN17 MAGND NCU Interface Circuit #:Not mounted CN17 Mounted the parts of this circuit,only S3000i. (excluded C155,C156,R252,R253) Model Drawing Name UF-580 / 590 SC PC Board (7/14) 780 / 790...
Page 276 DV[15-0] 004:D4;014:C1 +24V 002:A4 nSYNC 004:D1 MCLKV AV[2-1] 004:D1 nLEDON DTC114EKA pLEDON 002:D1 R289 Gi:30min 004:D1 nFRPRSTV nFRIPV 004:D1 nWLV 004:D1;014:C3 2SD592A nRDV 004:D1;014:C3 #:Not mounted MGND Model Drawing Name UF-580 / 590 SC PC Board (8/14) 780 / 790...
Page 277 R328 002:D4 pHSYNC CN68 nHSYNC R322 2.0W +24V TC7SH14FU +3.3V 2012 IC35 TC7SH14FU IC32 BA10393F CN68 nS/H DTC143ZKA MGND 2012 4.7K 002:D4 pS_H CN68 CN68 #:Not mounted Model Drawing Name UF-580 / 590 SC PC Board (9/14) 780 / 790...
Page 278 R377 2SC2412K 500mA 001:A3 pADF1 4.7K 47uF 2012 MGND 2SD874A MGND MGND R342 2SC2412K 2012 002:D4 MMP3 4.7K MGND 560.0 MGND MGND MGND step MGND #:Not mounted Model Drawing Name UF-580 / 590 SC PC Board (10/14) 780 / 790...
Page 279 4.7K R396 IC32 001:A3 THERM DTC143ZKA Gi:30min +3.3V Thermistor I/F +3.3V B2B-PH-K-S CN52 012:B3 nPWSAVE DTC114EKA Gi:30min 2SC2412K R395 2SC2412K CN52 001:D3 nPWOFF DTC114EKA Gi:30min #:Not mounted Model Drawing Name UF-580 / 590 SC PC Board (11/14) 780 / 790...
Page 280 PNLRXD CN14 pPNLRD +5VP C240 pPNLRD 100pF R430 R438 Optional 011:C4 nPWSAVE CN14 nPWSAVE 2nd Casette i/f C241 nPWSAVE (Not Mounted for UF-580/780) +3.3V 100pF B7B-PH-K-M +24VM R434 +24VM CN66 006:D4 nWAKUP CN14 nWAKUP C246 nWAKUP 100pF CN66 R424 R435...
Page 281 +3.3V JW75 C250 0.1uF C252 +3.3V side +5V side *1: Not Mounted on UF-580/780. 0.1uF JW55 C251 Centronics i/f 0.1uF C253 002:D3 DATA[8-1] 0.1uF Centronics Connector 74LVX161284MTD R41-2181C 002:D3 pBUSOUT DATA[1] JW56 CN91 DATA1 JW67 DATA[2] DATA2 CN91 DATA[3] JW57...
Page 282 001:D2 CN12 CN93 INTR0 CN93 LANINT 001:A3 CN12 CN93 CN93 CN12 CN12 003:C3;004:C1;005:B1;014:C1 AD[15-1] DD[15-0] 003:C3;004:C4;005:B1 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 Model Drawing Name UF-580 / 590 SC PC Board (14/14) 780 / 790...
Page 283: Pnl1 Pc Board
10.3. PNL1 PC Board Model Drawing Name UF-580 / 590 PNL1 PC Board (1/2) 780 / 790...
Page 284 001:D2 pLEDCT1 001:D2 pLEDCT0 001:D1 nLED[1-0] 001:A4 SCN_DB[7-0] 001:A4 KIN[7-0] *2 : UF-580/590/780/790 : Not Mounted DX-800 : Mounted MEMORY REDIAL/ FLASH STAMP 09/O 06/Y RESOLUTION 13/S ON LINE INTERNET INTERNET PAUSE SW14 SW22 SW30 SW38 SW46 SW54 LED2 LED4 0.1W...
Page 285: Mjr Pc Board
CN21 TC7S00F this function. IC20 THS-56F *4 complies with the standard of the * Not mounted insertion loss in a certain destinations. GND1 * Not mounted GND1 Model Drawing Name UF-580 / 590 MJR PC Board (1/1) 780 / 790...
Page 286: Sns1 Pc Board
10.5. SNS1 PC Board B3B-PH-K-M CN80 LDSC1 to SNS2 CN80 CN80 nCCHK1 CN81 nCCHK1 CN81 to SNS4 nRSEN CN81 CN81 LDRE CNA1003H01ME B4B-PH-K-M Model Drawing Name UF-580 / 590 SNS1 PC Board (1/1) 780 / 790...
Page 287: Sns2 Pc Board
10.6. SNS2 PC Board CNA1003H01ME B3B-PH-K-M nCCHK1 CN82 CN82 to SNS1(LPC) LDSC1 CN82 Model Drawing Name UF-580 / 590 SNS2 PC Board (1/1) 780 / 790...
Page 288: Sns3 Pc Board
10.7. SNS3 PC Board to LPC to TONER CN83 CN84 TONER TONER CN83 CN84 CN83 CN84 B3B-PH-K-S LDSP1 CN83 nPCHK1 CN83 B5B-PH-K-M CNA1003H01ME Model Drawing Name UF-580 / 590 SNS3 PC Board (1/1) 780 / 790...
Page 289: Sns4 Pc Board
T o: CN87 PAPER EXIT SENSOR SC PCB (CN58) CNA1003H01ME B4B-PH-K-M LDRE CN85 nCCHK1 nCCHK1 T o: CN87 CN85 TIMING SENSOR nRSEN nRSEN CN87 CN85 (CN81) CN87 CN85 Model Drawing Name UF-580 / 590 SNS4 PC Board (1/1) 780 / 790...
Page 290: Ccd Pc Board
10.9. CCD PC Board " " Model Drawing Name UF-580 / 590 CCD PC Board (1/1) 780 / 790...
Page 291: Ils Pc Board
10.10. ILS PC Board S2(3)B-PH-K-S +24V CN73 T o: SC PCB AVM3958 SW101 (CN57) +24VD CN73 AVM3958 SW102 Model Drawing Name UF-580 / 590 ILS PC Board (1/1) 780 / 790...
Page 292: Aci Pc Board
10.11. ACI PC Board AC Inlet NC-179-L3A Harness, ACI FBS8701 AC (L) T o: ACH1 (Black) FG (G) Power Supply Unit ACH1 (White) (CN101) AC (N) FG Strap FBS8702 Model Drawing Name UF-580 / 590 ACI PC Board (1/1) 780 / 790...
Page 293: Power Supply Unit
10.12. Power Supply Unit " " Model Drawing Name UF-580 / 590 HVPS (1/4) 780 / 790...
Page 294 " " Model Drawing Name UF-580 / 590 HVPS (2/4) 780 / 790...
Page 295 " " Model Drawing Name UF-580 / 590 HVPS (3/4) 780 / 790...
Page 296 " " Model Drawing Name UF-580 / 590 HVPS (4/4) 780 / 790...
Page 297 " " Model Drawing Name UF-580 / 590 LVPS (1/1) 780 / 790...
Page 298 DZZSM00158...

This manual is also suitable for:

Uf-780 Uf-590 Uf-790

Panasonic UF-580 Service Manual

Specifications Table

Disassembly Instructions

Maintenance, Adjustments and Check Points

Troubleshooting

Service Modes

System Description

Exploded View & Parts List

Installation

Options and Supplies

Schematic Diagram

Quick Links

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Summary of Contents for Panasonic UF-580

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Table of Contents