Sc Tables: Sc3Xx (Image Processing1 (Charge, Development)); Sc302-00 To Sc392-01 - Ricoh D197 Service Manual

6.4 SC TABLES: SC3XX (IMAGE PROCESSING1
(CHARGE, DEVELOPMENT))

6.4.1 SC302-00 TO SC392-01

SC No. Level
SC302-00 D
SM

SC Tables: SC3xx (Image Processing1 (Charge, Development))

Error Name/Error Condition/Major Cause/Solution
High Voltage Power Source: Charge: Output Error
The machine detects the error detection signal "L (unexpected)"
10 times for 200 msec consecutively when monitoring the error
signal every 20 msec during outputting the PWM signal.
Hardware error

Input / Output connector is disconnected.

Input / Output harness is short-circuited.

Surface/air clearance insufficient (arc discharge)

BCU error (signal error)

HVPS defective
Load error

Grounding fault of charging output, short-circuit with other
outputs

Surface/air clearance insufficient in charging output path
(including distance from other outputs)

Unexpected deterioration of drum and over current due to
pinholes gap error between the drum and charge roller
(PCU error).

Over current due to drum surface condensation

PCU is disconnected.

Cycle the main power off/on.

Replace the high HVPS.

Replace the harness of the HVPS.

Replace the harness of the PCU.

Replace the PCU.
6-21 D197/D198/D199/D200/D201/D202