Power Supply Unit - Toshiba e-STUDIO6520C Service Handbook

Multifunctional digital color systems

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POWER SUPPLY UNIT

Construction

The power supply unit consists of the AC filter, insulation type DC output circuits and heater lamp

control circuit.

In a model with 2 power cables, the total current capacity to be used should not exceed the

breaker rating.

1. AC filter

Eliminates noise from the outside and prevents the noise generated by the equipment from leaking

to the outside.

2. DC output circuits

Converts AC voltage input from outside to DC voltage and supplies it to each electric part. The DC

voltage is divided into the following two lines.

a. Main switch line:

b. Cover switch line:

3. Heater lamp control circuit

TRC (Triac) is driven by the control signal from the LGC board and then AC power is supplied to

each heater lamp in the pressure roller.

Power supply used in the entire equipment during image forming process.

Two kinds of voltage (+5.1 V and +12V) are output when the main switch

of the equipment is turned ON.

Power supply used in the entire equipment during image forming process,

being supplied via the cover switch. Two kinds of voltage (+5.1VD and

+24VD) are output only when the main switch of the equipment is turned

ON and two covers (front cover and automatic duplexing unit) are closed.

e-STUDIO5520C/6520C/6530C

POWER SUPPLY UNIT

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E-studio5520c E-studio6530c