Electrical Components; Scanner Unit - Ricoh MP CW2201 Field Service Manual

6. Troubleshooting

Electrical Components

Scanner Unit

No.
1 Safety switch
2 CIS unit
3 Scanner motor
4 SIB
5 Original Exit Sensor
6 Original stop switch
744
Component
A push-switch that detects when the scanner cover is open
and disables machine operation. This prevents the CIS from
switching on while the cover is open
Five CIS elements that transfer scan image signals from CIS
LEDs to the SIF
Drives the original feed roller and original exit roller that
feed the original through the scanner unit
Scanner Interface Board. This is the board that controls the
scanner, and serves as the signal I/F board between the
IPU and MCU.
Detects the leading and trailing edges of the original as it
leaves the scanner unit. Signals a jam if the edges are not
detected within the prescribed time.
Halts original feed after the operator presses this on the
operation panel to stop feeding because the original has
skewed or wrinkled.
Function