Page 1 SERVICE MANUAL CODE: 00ZSF2025FM/E No.1 SF-2025 MODEL SF-D20/21 MODEL SF-DM11 MODEL CONTENTS [ 1 ] PRODUCT OUTLINE ........1-1 [ 2 ] PRODUCT SPECIFICATIONS .
Page 2: Table Of Contents
CONTENTS [ 1 ] PRODUCT OUTLINE ............... . 1-1 General description .
Page 3 [ 3 ] OPTIONS SPECIFICATIONS ..............3-1 SF-A56/17 .
Page 4 C Change the size of the rear plate............5-6 D Set the size detect spacer .
Page 5 9 Adjust the clearance between the sorter and the copier........5-29 10 Set the mode.
Page 6 4 Remove the toner collecting plate............5-41 5 Remove the cover plate.
Page 7 (5) Adjusting the Lateral Magnification ............7-10 (6) Inputting the Lens Travel Correction Value .
Page 8: 1 ] Product Outline
(1) Compact body 1. General description Use of a front loading paper cassette. The SF-2025 is medium class copier that produces 25 copies per (2) Serviceability and functionality minute. The SF-2025 has all the standard features of medium class copiers to provide high productivity in offices with improved versatility 1 Use of a liquid crystal display.
Page 9: 2 ] Product Specifications
[2] PRODUCT SPECIFICATIONS 1. Basic specification (1) Type Desktop (2) Copy method Dry electrostatic copier (3) Kinds of originals Sheet, book, three dimensional object Thickness of original: Maximum 30mm in level with the original cover in use. Weight of original: Maximum 1.8 kg (4 pounds) Maximum original size: A3 (11"...
Page 10: Magnification Ratio
52 to 128 g/m (14 to 34 Ibs) (A4 size or under, if above 105 g/m or 28 Ibs) Kind of paper: Standard, Sharp designated paper, OHP Detection size Inch series: Available: Ledger, Legal, Letter, Letter (R), invoice AB series: Available: A3, B4, A4, A4R, A5 2 –...
Page 11: Developing Method
(11) Developing method Dry, two components magnetic brush method (12) Charge method (–) DC saw-tooth electrode method (13) Transfer method (–) DC Corotron method (14) Separation method AC Corotron method (15) Fusing method Heat roller method (16) Cleaning method Blade method (17) Light source Halogen lamp (18) Blanking areas...
Page 12: Additional Features
Availability (21) Additional features of feature Overseas: Available when RADF/ADF is used Inhibited when mixed paper feed/ Available when RADF/ADF is used APS: Auto paper selection 9mm shift (S → S), with Margin shift AMS: Auto magnification ratio adjustment function selection DPCM Enlarge not permitted.
Page 13: Accessories
(25) Accessories Destination Japan SECL SEEG AB agent Inch agent Drum Installed when Installed when Installed when Separately Separately Installed when Partly packed Partly packed shipping shipping shipping packed packed shipping Developer (Black) Toner for installation Original cover Standard Option Option Option Option...
Page 14 SECL Name Content Life Product name Package Remark × 1 Drum OPC drum SF-2300R (850g) × 10 (SF-230ND1) × 10 = SF-230MD1 Developer (Black) Developer 80K (× 10) SF-230MD1 (600g) × 10 (SF-230NT1) × 10 = SF-230MT1 Toner (Black) Toner cartridge 15K (×...
Page 15 SCA, SCNZ, Middle East, Africa Name Content Life Product name Package Remark × 1 Drum OPC drum SF-230DM (SF-230DV1) × 10 = SF-230LD1 Developer (Black) Developer (850g)× 1 80K (× 10) SF-230LD1 (SF-230T1) × 10 = SF-230LT1 Toner (Black) Toner cartridge (600g)×...
Page 16: Environmental Requirements
3. Environmental requirements Conditions required for proper operation of the machine, as well as assurance of copy quality, the following are requested. 1 Standard conditions Recommended temperature range at 20 to 25 Centigrade (68 to 77 degrees F) and humidity range at 65 ± 5%RH. 2 Operating conditions Humidity 15˚C...
Page 17: 3 ] Options Specifications
[3] OPTIONS SPECIFICATIONS 1. SF-A17/A56 Acceptable Weight: Single-sided originals: 14 to 34 lbs. originals Two-sided originals (SF-A56 only): 14 to 34 lbs. for 5-1/2″ × 8-1/2″ and 8-1/2″ × 11″ originals. 14 to 29 lbs. for 8-1/2″ × 14″ and 11″ × 17″ originals. A3 ∼...
Page 18: Sf-S52
5. SF-S52 No. of bins NON-SORT: 100 sheets for top bin ⁄ -″ × 11″) (A4) SORT: 35 sheets (8 ⁄ ″ × 14″) (B4) 25 sheets (8 15 sheets (11″ × 17″) (A3) Bin capacity ⁄ ″ × 11″) (A4) GROUP: 25 sheets (8 ⁄...
Page 19 10. SF-71A (counter), SF-71B (socket) • Personal counter 9 9 9 11. Other counters Card-type department counter (SF-EA11) Password-system department counter (SF-EA12) Counter commander (SF-EA13) 12. Desk SF-DS15 3 – 3...
Page 20: External View
[4] COMPONENT IDENTIFICATION 1. External view Document holder Exit tray Document cover (optional) Operation panel Document glass Paper clip tray Manual feed tray paper guides Manual feed tray Exit area cover Duplex module or 500-sheet paper Power switch Lower paper tray drawer (optional) Front cover Toner collecting container cover...
Page 21 Fusing unit Transport lever Corona unit Photoconductive drum Toner hopper Roller rotating knobs Toner hopper lock lever Toner collection container 4 – 2...
Page 22: Operation Panel
2. Operation panel 10 11 12 16 17 EDGE MARGIN DUAL PAGE ERASE SHIFT COPY CHECK STAPLER INTERRUPT ORIGINAL PAPER SORTER ORIGINAL TO COPY AUTO IMAGE SIZE SIZE CLEAR ALL EXPOSURE AUTO 11 x 17 (ORIGINALS) 8½ x 14 MANUAL SORT EVEN NUMBER 8½...
Page 23: Internal View
3. Internal view 23 22 #2 mirror #3 mirror #1 mirror Copy lamp Lens unit Main corona unit Blank lamps #6 mirror #4 mirror #5 mirror — Developing tank Resist roller Transfer corona Drum Separation corona Drum separator pawl Cleaner unit Suction unit Suction belts Upper heat roller...
Page 24: Clutches, Solenoids
4. Clutches, solenoids Signal name Name Function CPFS1 Upper cassette paper feed solenoid For tensioning takeup roller CPFS2 Lower cassette paper feed solenoid For tensioning takeup roller CPFC1 Upper cassette paper feed clutch For actuating paper feed roller CPFC2 Lower cassette paper feed clutch For actuating paper feed roller MPFS Manual paper feed solenoid...
Page 25: Sensors
5. Sensors Signal name Type Name Output CSWL Microswitch Cover switch, (left) On when closed Transmssive photosensor Paper exit sensor Low when paper passes over P-SW See-saw switch AC power switch — MHPS Transmissive photosensor Mirror home position sensor High when scanner at home postion CSWF Microswitch Cover switch, (front)
Page 26: Motors
6. Motors Signal name Name Type Function Main motor DC, brushless Driving copier and ADU option Mirror motor DC, brushless Driving optical system mirror bases A and B Lens motor DC, stepping Driving optical lens #4/5 mirror base motor DC, stepping Driving optical mirror base C Toner motor DC, synchronous...
Page 27: Board List
7. Board list Name Type Function Main PWB Japan/Export Primary control of copier functions Operation PWB Common Display AC PWB Japan/Export, 100V/200V Supplying AC power Blank lamp PWB Common Controlling blank lamps Original sensing light emitting PWB Japan Sensing original size Original sensor light receive PWB Japan Sensing original size...
Page 28: Duplex Copy Tray
8. Duplex copy tray Signal name Type Name Output APHPS2 Transimissive photosensor ADU rear plate home position sensor Low when at home position DPPD1 Transimissive photosensor ADU paper transport sensor-1 High when paper passes over APHPS1 Transimissive photosensor ADU alignment plate home position sensor Low when over home position DPPD2 Transimissive photosensor...
Page 29: Desk Unit (Sf-D20/D21)
9. Desk unit (SF-D20) Signal name Name Function DPOD1 Desk paper exit sensor Paper exit sensor (High when paper passes over) DPOD2 Desk paper exit sensor Paper exit sensor (High when paper passes over) DLUD1 Desk cassette liftup sensor Cassette liftup sensor (Low when lift plate detected) DPED1 Desk cassette paper sensor Cassette paper sensor (Low when paper detected)
Page 30 10. Desk unit (SF-D21) Signal name Name Function DPOD1 Desk paper exit sensor Paper exit sensor (High when paper passes over) DPOD2 Desk paper exit sensor Paper exit sensor (High when paper passes over) DLUD2 Desk cassette liftup sensor Cassette liftup sensor (Low when lift plate detected) DPED2 Desk cassette paper sensor Cassette paper sensor (Low when paper detected)
Page 31: 5 ] Installation
5. Be sure to allow the required space around the machine for ser- [5] INSTALLATION vicing and proper ventilation. 11-13/16" (30cm) A. Installing conditions 12/8" 00-13/16" (60cm) (30cm) To ensure safety and proper machine performance, please note the following before initial installation and whenever the machine is to be relocated.
Page 32: Installation Procedure
5 Hold the fuser unit hand carry strap and remove the fuser unit. B. Installation procedure (1) SF-2030 Hand hold strap 1. Releasing optical locks Front panel band A. Removing the #2/3 mirror unit lock Paper exit Unfasten the screw that holds the #2/3 mirror unit on the left side of Screws the machine.
Page 33: Cleaning Corona Units
2 Remove the CL springs which are fixed to the front and the rear D. Installing the fusing unit side of the fusing unit with adhesive tape. Insert the locator pin under the fuser unit into slot. Gently push fuser unit all the way in.
Page 34: B Clean The Transfer/Separation Corona Wires
3 Very carefully clean the top of the electrode using the repeat this 2 Unhook the section A of the separation corona guide, slide the procedure a few times. separation corona in the direction of the arrow, and remove the separation corona guide from the corona housing.
Page 35: Setting Up The Upper Paper Cassette
5. Setting up the upper paper cassette E. Set the size detect spacer Change the position of the size detect spacer. Move the spacer to the A. Remove the packing screw of the cassette. appropriate positions. Pull out the cassette drawer by lifting while pulling out drawer. Remove the one packing screw that secures the paper tension plate (Ex) A3 setting Size detect spacer...
Page 36: G Set The Cassette
G. Set the cassette B. Change the size using the side plates F and R. (set to A3 position at the factory.) Hold up both sides of the cassette from back and insert it along the guide rails. Set the plates into the appropriate positions and secure wach plate with two screws.
Page 37: E Change The Paper Size Indication Plate
3 Slide the developing unit lock lever in the arrow direction to E. Change the paper size indication plate release lock, and hold the toner box lever and pull out the Remove the paper size indication plate. Install the plates so the size developing unit until it stops.
Page 38: Setting The Developing Unit
8. Setting the developing unit 9. Toner density sensor level adjustment Turn on the power switch of the copier body. A. Supplying developer A. Developing unit level adjustment 1 Remove the 5P connector which is connecting the toner hopper and the developing unit. 1 Perform the key operations of simulation 25.
Page 39: Label Attachment
5 Move the toner cartridge in the arrow direction until it stops. 9 Push the toner box slowly to the original position, and lift the toner box lever. Toner box lever 6 While holding the toner cartridge, pull the seal to supply toner. Toner supply is completed with the above procedure.
Page 40: Sf-A17/A56
(2) SF-A17/56 Unplug the copier and follow the procedure below. 1. Remove the document cover. Open the document cover and lift it at a slight backward angle to remove it. Insert the left and right covers (included parts) into the holes from which the document cover has been removed.
Page 41: Adjust The Angle Of Adf
Fit the ADF mounting screws into the holes in the hinges of the ADF 4. Connect the ADF connector. and secure the ADF with the two ADF securing screws. Remove the connector cover from the copier’s rear cover. Next, connect the ADF connector to the connector on the copier. ADF securing screws Connector on the copier ADF connector...
Page 42: Set The Mode
When off center as shown in fig. 1 Plug the copier into a grounded outlet and turn the Move the tray in direction A and secure it with the two mounting power switch on. Then, follow the procedure below. screws. Make a copy to check whether it is centered properly. 7.
Page 43: Sf-S53
(2) If the copy image at the leading edge was distorted, enter value Included parts which will move the original toward the glass side. 9, 10, 11... Original Rail screws A (M4 x 6): 2 Stopper Glass Rail screws B Caster screws (M4 x 6): 1 (M4 x 50): 8...
Page 44 When not performed on the skid Before installing Open the sorter protection mat, as shown in the figure, and position it Be sure that you have plenty of room around the against the sorter’s casters. Lay the sorter down on the protection copier for work space.
Page 45: Mounting Of The Staple Sorter Onto The Copier
Unplug the copier’s power cord before carrying out 4. Attach the rail to the sorter. the following procedure. Insert the rail into the rail mounting anchor, on the bottom of the sorter, and attach them with the 2 rail screws A (M4 x 6) and 1 rail A.
Page 46 7. Confirm that the staple sorter can be attached 10. Reattach the rear cabinet panel. and detached correctly. Reattach the rear cabinet panel in its original position with the 6 mounting screws. 1 Latch and unlatch the staple sorter from the copier to confirm that it moves smoothly.
Page 47: Staple Sorter Operation Check
12. Affix the green label. B. Staple sorter operation check Lifting up on the staple sorter’s release lever, separate the sorter from 1. Check the sort mode. the copier. Make 20 copies in the sort mode and confirm that the copies are Next, affix the green label to the paper output section handle as distributed to the sort bins with no abnormal noises from the sorter.
Page 48 3. Reinsert the staple cartridge. 2. Open the stapling section. Push the staple cartridge in horizontally until it clicks securely into Open the stapling section by pushing up on the stapling plate while place. pressing on the stapling section release lever. Then close the stapler cover.
Page 49: Sf-S52
a. After unpacking, check that all the parts are provided as follows: 6. Confirm that papers are stapled correctly. Place a set of papers in the 2nd bin (below the non-sort bin), check Cut-outs in the cabinet panel the stapling location, and then press the manual staple key when it lights up.
Page 50 • Attach the support plate to the sorter mounting angle R and the h. Install the rear cabinet panel to the sorter. connecting plate, and fix it with four fixing screws. Tighten the 4 mounting screws to install the rear cabinet panel. Mounting Rear cabinet panel Sorter mounting angle, rear...
Page 51 k. Lock the sorter body. m. Connect the sorter connector. Pull out the sorter body slowly until the black screw on the Use the two bracket mounting screws to secure the bracket. guide plate can be seen. Connect the 6-pin connector and the 10-pin connector of the Loosen the black screws (one in the front, one in the rear) sorter to the 6-pin connector and the 10-pin connector of the fixing the stopper plates (one in the front, one in the rear), and...
Page 52 If the mode is to be set for a combination with other options, Maintenance pouch add up the total of the setting values for all the peripheral devices to be set from the table shown below, and set the total Top cover value.
Page 53 e. When a staple jam occurs: Check that the first staple in the staple cartridge is at the indication line. If not, pull it to the indication line. If any staples Open the top cover, raise the stapler handle up and pull out are protruding past the indication line, tear them off at the the stapler.
Page 54: Sf-S18
(5) SF-S18 Sorter seat cover securing screws Lockplate screws (M4 x 8) (3 pcs.) (2 pcs.) Sorter seat securing screws Sorter securing screws (M4 x 8) (4 pcs.) (2 pcs.) Stopper screw Spacers Felt washer (1 pc.) (4 pcs.) (1 pc.) Included parts Unplug the copier and follow the procedure below.
Page 55: Remove The Cut-Outs
3. Remove the cut-outs. 6. Mount the sorter seat cover. Remove the four cut-outs from the left cabinet panel of the copier. Mount the sorter seat cover to the sorter seat and secure it using three sorter seat cover securing screws. Cut-outs Sorter seat cover securing screws Sorter seat cover...
Page 56: Mount The Stopper
8. Mount the stopper. 10. Attach the sorter to the sorter seat. Mount the felt washer to the stopper screw and secure the screw to Install the M4 x 8 sorter securing screws (2 pcs.) in the screw holes the sorter seat shaft. on the sorter to attach the sorter to the sorter seat.
Page 57: Connect The Sorter Connector
12. Connect the sorter connector. (6) SF-S15 (20-Bin Sorter) Remove the sorter connector cover securing screw which is mounted to the rear cabinet panel of the copier and remove the sorter connec- tor cover. Connect the sorter connector to the connector on the copier and secure it using the sorter connector securing screw.
Page 58: Mount The Sorter Seat To The Desk
2. Mount the sorter seat to the desk. 4. Place the sorter on the sorter seat. Remove the two cut-outs in the cabinet panel on the left side of the While holding the handle, place the sorter on the sorter seat’s guide desk.
Page 59: Connect The Sorter Connectors
6. Connect the sorter connectors. 9. Adjust the clearance between the sorter and the copier. Use the two bracket mounting screws to secure the bracket attached to the sorter harness to the frame of the copier. Push the sorter gently against the copier’s left cabinet panel. The clearance spacers attached to the back of the sorter will determine Connect the 6-pin and 10-pin sorter connectors to the 6-pin and the standard clearance between the sorter and the copier.
Page 60: Sf-D20/Sf-D21
(7) SF-D20/21 Tape Tape Shipping material Tape Shipping material SF-D20 Tape Screw Be sure to unplug the copier before carrying out the following procedures. SF-D21 1. Place the copier on the desk. Place the copier on the desk so that the feet of the copier fit into the Included parts corresponding holes in the desk.
Page 61: Remove The Rear Cabinet Panel From The Copier
3. Remove the rear cabinet panel from the copier. 6. Move the copier to the desired installation location. Remove the rear cabinet panel by removing the four screws which secure it to the copier. 7. Lock the casters. Move the lock levers of the two casters (one each left and right) at the front side of the desk downward in the direction indicated by the arrow in order to lock the casters.
Page 62: Adjust The Positions Of The Front And Rear Side Plates
Paper size detection spacer position diagram 10. Adjust the positions of the front and rear side plates. AB system Remove the mounting screws (two each) which secure the front and rear side plates, fit the two side plates into the appropriate positions marked on the cassette corresponding to the desired paper size, and then secure the side plates once again with the mounting screws (two each).
Page 63: Re-Insert The Paper Cassette
• If the mode is to be set for a combination of optional equipment, 14. Re-insert the paper cassette. add together the setting values shown in the table below for each Lift up on both sides of the back of the paper cassette and, while peripheral device, and set the mode to the total setting value.
Page 64: Adjust The Position Of The Rear Edge Paper Guide
19. Adjust the position of the rear edge paper 21. Change the paper size indicator. guide. Remove the paper size indicator and re-insert it so that the paper size for which the cassette has been set is visible in the paper size indica- Loosen the two screws which secure the rear edge paper guide until tion window.
Page 65: Set The Mode
24. Set the mode. Size label for indication plate • Operate the keys on the copier to set the mode. AB system READY INTERRUPT INTERRUPT A5 1sheet READY Inch system 8 ½ x 5 ½ 1sheet The above sequence of key operations will display the current setting value.
Page 66: To Change The Size Setting Of Side Plate F And Side Plate R
When using after changing paper size: 4. To set the size detection spacer. Reposition the size detection spacer for the desired paper size. 2. To change the size setting of side plate F and side plate R. Size detection spacer Insert side plate F and side plate R into the cassette main unit and align them on the marking for the desiredsize, and secure the side plates with fixing screws (2 pcs.
Page 67: To Change The Paper Size Indication Plate
5. To stick the cassette size labels. (9) SF-DM11 Stick the cassette size labels that indicate and correspond to the desired size on the marked positions for sticking (2 positions). If you change the size to A5 or 8-1/2 x 5-1/2, take out the paper size indication plateand stick the size label on the indication plate and align the sticking line as shown in the figure.
Page 68: To Install The Adu Drive Unit
2. To install the ADU drive unit. • When a container fixing lever is not installed Open the storage cover for the toner collecting container, then Remove the connector, that has been inserted temporarily to the remove the toner collecting container by pulling out and pressing connector near the copier main unit for connecting with ADU drive down on it at the same time.
Page 69: To Install The Toner Collecting Container
8. To install the toner collecting container. When the matching guide is aligned properly, perform step 10 in the Installation Procedure. • When a container fixing lever is installed Reinstall the toner collecting container that has been removed in step When the matching guide is not aligned properly, 4, restore the container fixing lever, and close the storage cover for perform the following Procedure to adjust the...
Page 70: Sf-Cm11
* In case of Fig. 1 Be sure to unplug the copier and install the unit as Move the front cabinet to the direction A, tighten the fixing screws follows: a (2 pcs.) and b (2 pcs.) in this order, and make a copy again to check that there is no center dislocation.
Page 71: Remove The Cover Plate
4. Remove the toner collecting container. 7. Remove the packing screw from the paper cassette. Open the toner collecting container cover, pull the fixed lever forward, and remove the container. Remove the packing screw which secures the paper pressure plate inside the paper cassette.
Page 72: Set The Paper Size Detection Spacer
10. Set the paper size detection spacer. 12. Fit the paper cassette guides into the guide rails. Change the position of the paper size detection spacer to match the desired paper size. Insert the paper cassette by fitting the guides of the paper cassette into the guide rails.
Page 73: Place The Paper
• If misaligned as shown in Fig. 1 15. Place the paper. Move the front cabinet panel in direction A and retighten the two Place the paper in the cassette. mounting screws a and then the other two screws b. Make Do not stack the paper higher than the maximum height line.
Page 74: 6 ] Disassembly And Reassemb17
[6] DISASSEMBLY AND REASSEMBLY 1. Process unit Discharge Drum Toner receiver BL PWB UN Cleaning blade lamp unit Remove the process cover (1 screw) and remove the process unit from the copier (3 screws). Detach the clam shell mechanism (4 screws). Loosen two blue screws that hold the drum Unfasten the blank Remove the cleaning...
Page 75 6 – 2...
Page 76: Manual Feed Multicopy Unit
2. Manual feed multicopy unit Paper feed Counter roller Takeup roller Spring clutch, small Spring clutch, large roller Remove the right side panel of the copier (3 screws). Remove the manual feed multicopy unit (4 screws, 2 connectors). Remove the partition Remove the reverse Remove the manual feed multicopy solenoid (2 screws).
Page 77 6 – 4...
Page 78: Paper Feed Unit
3. Paper feed unit Paper feed Takeup roller Counter roller Solenoid roller Unfasten the harness of the spring clutch. Remove the tension spring. Remove the spring. Remove the manually set Remove the manually set E-ring. Remove the solenoid lever. E-ring. Remove the solenoid Move the clutch shaft to the location where the pickup roller lever Move the shaft, including the...
Page 79 6 – 6...
Page 80: Transport Baseplate Unit
4. Transport baseplate unit Paper stop Paper stop Suction unit transfer belt roller clutch 10 Remove the connecting plate 5 in Fig. F . (2 screws) Remove the transport baseplate from the machine 11 Remove the stopper and the (4 screw on front, 2 on rear, 2 connectors). 22T gear.
Page 81 6 – 8...
Page 82: Fuser Unit
5. Fuser unit Upper/lower Upper/lower Heater lamp Cleaning roller separation pawls heat roller Remove the fuser cover (2 screws). Unfasten the heater lamp connectors on both sides. Remove the cleaning roller springs on the front and the rear sides. Unfasten the thermistor and thermostat connectors. Remove the upper cleaning roller Remove the lamp holder unit (2 screws).
Page 83 6 – 10...
Page 84: Duplex Copy Unit
6. Duplex copy unit Paper feed Counter Takeup roller roller roller Remove the double side copy tray. Remove the front cover (2 screws). Unfasten two connectors. Remove the pivot holding plate screw (one each on both sides). Remove the upper and transport paper guides from ADU. Remove the front and rear side two Remove the clutch retaining plate Remove the clutch stopper plate...
Page 85 6 – 12...
Page 86: Rear Frame Side Major Components
7. Rear frame side major components Paper feed Variable paper Main drive unit (belt) drive unit speed unit Remove the rear panel (4 screws). Remove the main PWB connectors (13 connectors). Remove the main PWB unit from the copier (1 screw). Remove the paper feed drive unit (4 screws).
Page 87 6 – 14...
Page 88 DC power Paper exit gate AC power supply PWB supply PWB solenoid Remove the rear panel of the copier (4 screws). Remove the rear side screw of the left side panel (1 screw). Remove the AC power supply board (5 screws, 6 connectors). Remove the DC power supply PWB (5 screws, 1 connector).
Page 89 8. Operation panel unit Operation Document size sensor panel board light receive side Open the front panel. Remove the middle panel (5 screws). Remove the glass holding plate and front frame side right and left side screws (5 screws). Remove the screws that hold the magnetic catch plate (one each on two locations).
Page 90: Optical Unit
9. Optical unit Copy lamp Copy lamp unit #2/3 mirror base unit #4/5 mirror base unit Remove the original guides (L, R) and remove the table glass (two each screws). Move the copy lamp unit to the cut in the Remove the operation panel.
Page 91 6 – 18...
Page 92 Mirror base wire stretching (Preliminary checks) Check the stop position of the wire winding pulley. Visually check that the wire grooves of the front/rear wire winding (Front) (Rear) pulleys are at the same level. If there is a substantial discrepancy between the two, loosen the two setscrews which are fixing the pulleys and adjust the pulley positions.
Page 93 Mirror base wire tension adjustment Copy lamp unit installing position Manually turn the mirror base drive pulley to shift mirror base B Pass the front/rear mirror base drive wire between the copy lamp which is at the mirror base positioning plate 20 to 30mm to the unit frame and the wire fixing plate.
Page 94 No. 2/3 mirror base unit installing position This is to adjust parallelism of mirror base B and the drum surface and the original surface. Manually turn the mirror base drive pulley, and press the copy lamp unit onto the optical section projection. If the clearance be- tween mirror base B and the rear frame is 2 mm in the front frame side and in the rear frame side, parallelism of mirror base B is proper and no further adjustment is required.
Page 95: Developing Unit
[7] ADJUSTMENTS 1. Developing Unit Tool: UKOGM0075CSZZ (Feeler gauge) (1) Clearance Adjustment of Developing Doctor Blade 0.03 0.50 0.03 1 Remove the 5 screws and the 5-pin connector which connect the developer tank to the toner hopper, and pull out the developer tank.
Page 96: Developing Bias Adjustment
(3) Developing Bias Adjustment 1 Set the measuring range of the digital multimeter to 300 Vdc or more. 2 Apply the probes to the developing bias output check pin (BSCP) and the chassis(GND) of the high voltage unit. 3 Perform Simulation 8-1. (The developing bias voltage is output for 30 seconds.
Page 97: Processing Unit
2. Processing Unit (1) Adjustment of Blank Lamp Position 1 Check that the center deviation is 2.0mm or less. (If the center Backward deviation is more than 2.0 mm, correct it). 2 Set an A3(11x17)-size blank original on the original table, and with the original cover opened, make a reduced (x 0.64) copy using an A3 (11 x 17) paper.
Page 98: Adjusting The Transfer Charger Current
B. Adjusting the Transfer Charger Current 1 Remove the developing unit, transfer/separation charger unit, main charger unit and waste toner bottle from the machine. 2 Remove the processing unit from the machine. When removing (attaching) the processing unit, do not grasp the toner feed pipe.
Page 99: Checking The Electrostatic Main Charger Current
C. Checking the Electrostatic Main Charger Current The drum current difference(balance) between the sides of front and rear frame is checked. 1 Perform steps. 2 Clean the saw-tooth plate of the main charger with polystyrene foam and attach the main charger to the machine. (Do not attach the transfer/separation charger).
Page 100: Adjusting The Separation Charger Output
E. Adjusting the Separation Charger Output 1 Attach the developing unit and the drum holder unit to the machine and turn on the machine. (Do not use the electrode sheet). 2 Attach the separation charger unit and drum holder unit to the machine.
Page 101: Optical System
3. Optical System The optical system must be adjusted according to the following flowchart: Check the following preset values depending on the focal length of lens (lens number): • Reference position of 4. and 5. mirror Reference position of lens. Simulation 48-01 •...
Page 102: Adjusting The Reference Position Of Lens
(1) Adjusting the Reference Position of Lens A reference value depending on lens characteristics must be input for adjusting the reference position of lens. (This value determines the home position of lens). (Procedure) Perform Simulation 48-01 =↵ . C → =↵ → →...
Page 103: Adjusting The Resolution
5 Perform Simulation 48-01 =↵ . C → =↵ → 0/◊ → =↵ → → 8 → PSW → 1 → PSW causes a preset value of longitudinal magnifica- tion to be indicated. 6 Determine a preset value of longitudinal magnification according to the following expression: 100 mm-scale (original) Preset value of longitudinal magnification = previous preset...
Page 104: Adjusting The Lateral Magnification
(5) Adjusting the Lateral Magnification The lateral magnification should be adjusted in the following cases: • When the main PWB is replaced. • When the RAM in the main PWB is replaced. Scale • When self diag U2 occurs. • When the mirror motor is replaced.
Page 105 Simulation Simulation 26-09 Value shown Simulation Simulation 26-08 48-01 Zoom correction on the label 48-01 Zoom correction (lens) (No.4/5 mirror) =↵ +4.0 +0.1 –0.1 (Lens value input vs. test command input) 7 – 11...
Page 106: Correcting The Longitudinal Distortion
Simulation Simulation 26-09 Value shown Simulation Simulation 26-08 48-01 Zoom correction on the label 48-01 Zoom correction (lens) (No.4/5 mirror) =↵ –4.0 (Lens value input vs. test command input) (7) Correcting the Longitudinal Distortion Use this procedure when replacing the mirror base driving wire. Feeding direction Original Copy...
Page 107: Correcting The Lateral Distortion
If the width of the front end solid (La) is equal to that of the rear end solid (Lb), no adjustment is required. Otherwise, follow the steps 4 to 7 described below: 4 Loosen screws securing the mirror base driving pulley on the rear frame side.
Page 108: Adjusting The Center Deviation
If La=Lb and Lc=Ld, no adjustment is required. If La>Lb(Lc<Ld), rotate the eccentric roller in one direction to raise the front frame side of the 4. and 5. mirror base unit. If La<Lb(Lc>Ld), rotate the eccentric roller in the other direction to lower the front frame side of the 4.
Page 109: Adjusting The Copy
Eg. If the copy is as shown in the figure, move the exposure con- Exposure trol plate a in the B direction to achieve the exposure balance. insufficient Paper discharge direction Half-tone copy (11) Adjusting the Copy Lead Edge To adjust the copy lead edge, use simulation 50-01 or 50-02. (Normal copy) Image loss 0 ∼...
Page 110 9 Press the sorter key to set to the void adjustment mode (4: VOID F). F Make a copy, and enter the lead edge void area adjustment set value (VOID F) at 100% copy so that the edge of the black background is at 1 ∼...
Page 111: Adjustment Of Copy Density
5 Measure the distance from the paper end to image(scale) end of the 200% and 100% copy, and using the scrol display key and Void area 1~4mm the ten keys, type the L1 and L2 values. Type all three digits. The RRC-A and RRC-B values of Simulation 50-01 are automat- ically calculated and stored in memory.
Page 112: Adjustment Of Ae Sensor Level
0.5 1.9 0 DENSITY No. memory. KODAK GRAY 19 A SCALE SHARP CORPORATION MADE IN JAPAN (6) Copy density adjustment Use the sorter key to select the mode (manual, photo, and auto) during execution of simulation 46-01. Operation panel display Copy quantity display: The copy lamp voltage is displayed in twice.
Page 113 3 When the copy density is in the reference range, press the sorter key to display exposure 5. * At that time, "01" is displayed on the magnification ratio Magnification ratio display display. 4 Make a copy. Check that "2" of UKOG-0162FCZZ (0.2 of UKOG-0089SCZZ) is clearly copied, and "1"...
Page 114 E. Auto exposure mode adjustment (2) Auto exposure (toner save mode) adjustment 1 Press the sorter key to set to the auto exposure toner (1) Auto exposure (normal mode) adjustment save mode. 1 Press the sorter key to set to the auto exposure normal Auto exposure mode exposure 1 is displayed on the mode.
Page 115: Adjustment Of Copy Density
UKOG-0162FCZZ DENSITY No. UKOG-0089CSZZ 0.5 1.9 DENSITY No. KODAK GRAY SCALE SHARP CORPORATION MADE IN JAPAN (6) Adjustment of copy density A. Adjusting the developing bias output –150 V (manual exposure 1) Perform Simulation 8-01 B. Adjusting the manual-exposure copy density...
Page 116: Adjustments Relating To Process Control
E. Adjustments when replacing the developer and 5. Adjustments relating to process control the drum (photoconductor) (The adjustment procedures differ according to the state of service • Complete replacement of the drum. maintenance.) • Complete replacement of the developer. A. Adjustment when installing the machine •...
Page 117 (Trouble codes and countermeasures) Trouble code Sub code Content Possible cause Countermeasure Image exposure sensor error Dirt on the image density sensor (ID) Clean the image density sensor and Photoconductor surface its peripheral. Use soft cloth reflection detection error immersed in water or alcohol to clean Copier operation halt when the sensor surface.
Page 118: 8 ] Simulation And Diagnostics
*2: Further operation may be needed depending on the kind of [8] Simulation and diagnostics simulation. *3: One of the next methods is required to cancel the simulation as it varies according to the simulation. The machine then starts 1. Simulation from the state immediately after power on.
Page 119 List of the test commands Sim. NO Sim. SUB Description Optical system mirror scanning check Optical system sensor state display Lens movement operation check Lens aging RADF aging RADF sensor state display Motor A forward rotation Motor A reverse rotation Motor B forward rotation Motor B reverse rotation RADF individual load operation check...
Page 120 Sim. NO Sim. SUB Description ADU sensor state display ADU trail edge plate aging ADU alignment plate aging Gate solenoid operation check Toner motor aging Cancel of troubles except U2, H2, H3, H4 Cancel of U2 trouble code PF trouble cancel Maintenance counter clear When the main code is entered and the START key is pressed, the staple check lamp is lighted for confirmation.
Page 121 Sim. NO Sim. SUB Description Option setting Coin vendor setting Counter mode setting Destination setting Drum sensitivity setting Lens focus setting 4/5 mirror characteristics setting AE original density setting Binding margin forming direction setting 0: Left binding (Default) 1: Right binding Duplex copy mode (even number originals) standard setting The standard setting after auto clear time operation is normally single →...
Page 122 Main code Sub code Description Ref. Page This is the test command used to test the optical system. The mirror base automatically starts to scan. (1) With depression of the PAUSE key, the control moves from the test command mode to be ready to execute it.
Page 123 Main code Sub code Description Ref. Page Used to check the sorter (option) sensor. This simulation allows to check ON/OFF of each sensor manually. To switch the sensor to be checked, press the ten keys during execution of this simulation. (When the SF-S15 is installed) Position/ten key TPL (Toner empty)
Page 124 Main code Sub code Description Ref. Page Indexer motor rotation (returns to the home position at first, then stops at each bin location Bin 1 to Bin 21, moving up and down. Sorter bin moving. Fan motor rotation in the case of SF-S15 only Gate solenoid ON Offset solenoid (in the case of SF-S53) Stapler motor rotation (the paper is stapled once when there is a paper in the stapler tray).
Page 125 Main code Sub code Description Ref. Page This is the test command used to test the copy lamp. Copy lamp turned on in the following order. When the test command starts, the copy lamp turns full power for one second with the manual exposure setting 3.0 shown, and the copy lamp intensity can be changed to the power set on the exposure setup key for a period of 6.25 seconds.
Page 126 Main code Sub code Description Ref. Page ADU sensor check test command ON/OFF state of each sensor can be manually checked. When the sensor turns on, the display reverses. Sensor Function DPPD1 ADU transport sensor 1 DPPD2 ADU transport sensor 2 DTPID ADU tray sensor DPFD...
Page 127 Main code Sub code Description Ref. Page ° Maintenance counter display Copy number of the maintenance counter is displayed. ° Maintenance preset counter display This test command is used to check the contents of the maintenance preset cycle counter. ° JAM memory display (JAM map display) Displays the causes (positions) of JAM occurred in copy operation.
Page 128 Main code Sub code Description Ref. Page Automatic developer adjustment • This is the test command used to monitor the toner sensor and to automatically set the developer. • For automatically setting developer, the developing tank is stirred and the toner sensor output is monitored.
Page 129 Main code Sub code Description Ref. Page Drum sensitivity setup 1 When the test command is executed, the number stored in the memory is recalled and the READY lamp turns on. 2 A number 1 to 3 may be entered on the keypad while the RPL is active. 3 Press the PRINT switch after the number has been entered.
Page 130 Main code Sub code Description Ref. Page Simulation Simulation 26-09 Value shown Simulation Simulation 26-08 48-01 Zoom correction on the label 48-01 Zoom correction (lens) (No.4/5 mirror) =↵ +0.1 –0.1 –4.0 8 – 13...
Page 131 Main code Sub code Description Ref. Page AE original density setting Used to set the original density. (Set value: 1 ∼ 9) Default: 2 Set to 9 if the density is extremely low. Binding margin forming direction setting 0: Left binding (Default) 1: Right binding Duplex copy mode (even number originals) standard setting The standard setting after auto clear time operation is normally single →...
Page 132 Main code Sub code Description Ref. Page The main motor rotates and toner patches are formed on the drum in 9 steps according to the grid bias (450 ∼ 850V by 50V step). The patch section and the image density sensor level of the surface are displayed.
Page 133 Main code Sub code Description Ref. Page Drum mark sensor/image density sensor gain selection check: 0 - 255 (5V) When the sorter key is pressed, the value of the item corresponding to the number which is displayed on the magnification ratio display is displayed by 2 digits.
Page 134 Main code Sub code Description Ref. Page Front/rear direction zoom ratio adjustment (refer to [7]-3-(6)-9 for the lens type value. Used to set the No.4/5 mirror home position (focal adjustment) and to adjust the zoom ratio of the copy in the vertical direction (from front to rear). There are two kinds of test command 48-01 of which are described as follows.
Page 135 Main code Sub code Description Ref. Page Used to adjust copy lead edge image loss and void area. [7]-15-(11) By setting L1 and L2 values, the lead edge adjustment is allowed. For details, refer to the copy lead edge adjustment in the optical section. Magnification ratio display Mode MFT L1...
Page 136 Main code Sub code Description Ref. Page ° RADF and ADF stop position adjustment value (thin paper, single copy) setting Used to adjust the RADF stop position in single copy with thin paper. When this simulation is executed, the ready lamp lights up and the currently set adjustment value is displayed.
Page 137 (Trouble codes list) Trouble status code Subordinate code Description Main motor lock detection No.4/5 mirror motor error detection No.4/5 mirror motor MHPS error detection Lens motor error detection Lens motor LHPS error detection Power supply line frequency error detection — Open thermistor (Test command 14 to reset) —...
Page 138 (User programs) The user programs allow the parameters of certain functions to be set, changed, or canceled as desired. 1. List of user programs Program No. Program name Description Auto clear time Sets the auto clear time. The copier returns to the initial settings when the auto clear time elapses after the last copy is made.
Page 139 [9] MAINTENANCE AND OTHERS The maintenance of the SF-2030 should be performed every 80K and 120K cycles. <Remarks> = lubrication, F=cleaning, v =adjustment, b=replacement/mounting, k=repositioning, =check (cleaning, replacement and/or adjustment if necessary) Unit name Part name 120K 160K 200K 240K 280K 320K Note Process UN...
Page 140 2. Counters and test commands related to maintenance (1) List of counters and test commands related to maintenance Test Command Description Function Main code Sub code Clear the maintenance counter The contents of the counter is cleared to zero. Set the maintenance cycle Code Maintenance cycle 0 ..
Page 141 (2) Alarm message When any trouble occurs which makes it unable to start or continue copying, one of the following messages is displayed. When the trouble is cancelled, the message is cleared and the machine is automatically reset. Alarm message Troubles which can be Troubles which reguire the key Troubles which reguire service...
Page 142 Copying/standby Stapler empty is sensed Copy possible Staple mode specifided "Replace the staple unit cartridge. Open the sorter cover and follow the direction." Copy unable Staple mode is canceled Stapler needle (New cartridge insertion) Copying/standby Waste toner bottle full is sensed "Replace the waste toner bottle"...
Page 143 Copying/standby Duplex tray trouble is sensed Copy possible Duplex mode is specifided "Duplex copy trouble function." Copy unable Duplex mode is canceled Use key operator program No.75 to inhibit automatic duplex copy Cancel: If the power is turned on/off without canceling the error the machine goes into the ready mode but the message is displayed again when the duplex mode is selected 7 , 8 Use of the function or the unit is inhibited...
Page 144 (3) Gears of paper-feed driving unit 4. Oil/Grease Points (4) Fusing unit driving gears (1) Gear of main driving unit (5) Paper exit roller driving gears (2) Gears of variable-speed paper-feed unit 9 – 6...
Page 145 (6) Paper-feed torque limiter 500-sheet cassette brake spring Torque limiter 500-sheet cassette brake spring (7) Optical rail Note 1: Grease (Molycoat(UKOG-0062FCZZ) or White Molycoat (UKOG-0158FCZZ)) must be applied to the correct grease points of each gear. Do not use too much grease. Note 2: No grease shall be applied inside the gear of the magnetic clutch.

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