Electrical Component; Sensors; Reflective Photo Sensors; Photo Sensors - Ricoh G108 Service Manual

ELECTRICAL COMPONENT

4.3 ELECTRICAL COMPONENT

4.3.1 SENSORS

Reflective Photo Sensors

Sensor Connector
ID
OPC belt
Waste toner DCN10
Toner end DCN15
Transfer belt DCN16
OHP DCN16
NOTE:
Connector TACN is on the BCU. The other connectors are on the I/O device PCB.

Photo Sensors

Sensor Connector
Development
unit
Paper exit
Registration DCN16
Paper end DCN16
Paper
DCN19
size/tray
NOTE:
The connectors provided here are located on the I/O device PCB.
G108
Condition
TACN Abnormal
DCN5 Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Condition
Interrupted
DCN2
Not
interrupted
Interrupted
DCN7
Not
interrupted
Interrupted
Not
interrupted
Interrupted
Not
interrupted
Interrupted
Not
interrupted
Symptom
Image quality may deteriorate.
• SC481
• The message "Reset PCU Correctly" is
displayed.
• The waste toner bottle or the waste toner is
not detected.
• The message "Waste Toner is Almost Full"
or "Check Waste Toner Bottle" is displayed.
• SC611
• SC612
• The message "Reset PCU Correctly" is
displayed.
• OHP sheets are not detected.
• The paper types other than OHP sheets are
not detected
Symptom
The message "Check Toner Crtg xxxxx" is
displayed, where xxxxx indicates a color.
The message "Add Toner xxxxx" is displayed,
where xxxxx indicates a color.
The paper stops in the paper exit unit and the
message "Remove Misfeed Internal Path" is
displayed.
The message "Remove Misfeed Internal Path"
is displayed when no paper is in the path.
The message "Remove Misfeed Paper Tray"
is displayed.
The massage "Remove Misfeed Internal Path"
is displayed.
The message "Load Paper: Tray 1 or Form
Feed" is displayed while the paper is in the
tray.
The message is not displayed when no paper
is in the tray.
The message "Remove Misfeed Paper Tray"
is displayed.
The message "Load Paper: Tray 1 or Form
Feed" is displayed.
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