Ricoh SH-P1 M020, Руководство по обслуживанию на месте

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231 D
FGATE OFF error • Defective GAVD and PCI bridge ASIC
The FGATE signal did not go off within
10 seconds after the machine finished
writing. (The BCU generates the
FGATE signal and sends it to the LD
unit when the registration sensor
switches on.)
• Turn the Power Switch Off and On.
• Replace the controller board.
240 C
LD error • Defective LD unit
• Disconnect harness.
• Disconnect LD Driver.
The IPU detected a problem at the LD
unit.
• Connect the harness properly.
• Replace the LD unit.
312 D
Charge roller current leak • Cartridge (charge roller) defective
• High voltage supply board defective
• Disconnect harness.
The PWM duty output exceeded 50%
for longer than 200 ms, indicating a
leak in the charge roller current.
• Turn the Power Switch Off and On.
• Connect the harness properly.
• Replace the AIO unit.
• Replace the High voltage power supply
board.
320 D
Development Bias leak • Bias applying section leak
• High voltage supply board defective
• Disconnect harness
• Development Bias CN loose
The PWM duty output exceeded 50%
for longer than 200 ms, indicating a
leak in the charge roller current.
• Connect the harnesses properly.
• Replace the AIO.
• Replace High voltage power supply
board.
6. Troubleshooting
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