Ricoh D127 Service Manual page 169

No.
Definition
White level correction error
The automatic adjustment has
142 B
failed to correct a current white
level to the certain level.
SBU Communication Error
144 B
Cannot correctly establish
communication with the SBU.
161 IPU error
LSYNC error
-001 B
Detecting an error from the result of
the IPU self-check on startup.
RI response error
-002 B
Detecting an error on access to the
RI.
SM
Symptom
6-3
Possible Cause

Dewing scanner unit

Defective scanner drive

Defective optical section

Defective SBU board

Defective relevant harness

Defective relevant harness

Defective destination device
(e.g., BICU, etc)

Defective SBU

Defective the IPU or the BICU
(or bad connection between the
ASIC and the LEO, LSYNC
Abnormal, etc)

Cable bad connection between
the SBU and the IPU (or the
BICU).

Defective the IPU (the BICU, the
ICTL) or RI abnormal
performance, etc
SC Tables
D127/D128