Ricoh FT5540 Service Manual page 42

Optics
Operation Panel
Paper Feed
AC Drive
Timer
COUNTERS
Total
A3/11" x 17"
Key
CIRCUIT BREAKERS
Circuit Breaker
TRANSFORMERS
Main
OTHERS
Power Supply Unit
Thermofuse
AC Power Relay
Noise Filter
Main Motor Capacitor
Development Motor Capacitor
Paper Feed Capacitor
Controls the speed of the scanner, the position of the lens,
and the position of the mirrors.
Controls the LED matrix, and monitors the key matrix.
Interfaces with overall paper feed; receives input from
paper size and paper end sensors.
Drives all ac motors, the exposure lamp, and the fusing
lamp.
Controls weekly timer and timer functions.
Keeps track of the total number of copies made.
Keeps track of the total number of A3/11" x 17" copies
made. (Option)
Used for control of authorized use. Copier will not operate
until installed. (Option)
Guards against voltage surges in the input power.
Steps down the wall voltage to 100 Vac.
Rectifies 100 Vac input and outputs dc voltages.
Provides back-up overheat protection in the fusing unit.
Controls main power.
Removes electrical noise.
Start capacitor
Start capacitor
Start capacitor
1-27
31 August 1989