Process Control Error Conditions; Process Control Self-Check Result - Ricoh IM C300 Service Manual

6.11 PROCESS CONTROL ERROR CONDITIONS

6.11.1 PROCESS CONTROL SELF-CHECK RESULT

Displayed number shows results of each color sensor check.
00000000 = YYCCMMKK
No. Result
11 Successfully
completed
41 Vt error
to
42
45 P_Pattern detect
error
53 ID sensor coefficient
(K5) detection error
SM
Description
Process control self-check
successfully completed.
Vt maximum or minimum error is
detected.
Not read TonerPatch
Not enough data can be sampled.
6-127
Process Control Error Conditions
Possible Causes/Action
Check the Vsg adjustment.
See the "Vsg Adjustment
Result" following this table.
• Defective development
unit
Vt maximum error and an
image is faint:
1. Replace the toner supply
pump unit.
Vt maximum error and an
image is O.K:
1. Replace the
development unit.
2. Replace the BiCU
(PCB1).
Vt minimum error:
1. Replace the
development unit.
2. Replace the BiCU board.
Same as 53
Solid image is not
•
sufficient density:
1. Retry the process
control.
2. Replace the ID sensors
(S27-S29).
3. Replace the BiCU
(PCB1).
Solid image is O.K.
•
1. Replace the ID sensors
D0CA/D0C9/D0C8/D0CB