Ricoh M281 Series Service Manual page 489

SC No. Type
SC669-14 D
SC669-15 D
SC669-16 D
SC669-17 D
SC669-18 D
SC669-19 D
SC669-20 D
SC669-21 D
SC669-22 D
SC669-23 D
SC669-24 D
SC669-25 D
SC669-26 D
SC669-36 D
SC669-37 D
SM
Error Name/Error Condition/Major Cause/Solution
EEPROM Data write: Communication abort error
EEPROM Data write: Communication timeout error
EEPROM Data write: Operation stopped error
EEPROM Data write: Buffer full
EEPROM Data write: No error code
EEPROM Data read: ID error
EEPROM Data read: Channel error
EEPROM Data read: Device error
EEPROM Data read: Communication abort error
EEPROM Data read: Communication timeout error
EEPROM Data read: Operation stopped error
EEPROM Data read: Buffer full
EEPROM Data read: No error code
Verification error
Error Detection
The toner density sensor cannot be recovered after retrying N
times for EEPROM communication error.
(*1 SC669-01 to 26: 3, SC669-36: 2, SC669-37: 1)

Electrical noise

EEPROM not installed correctly

EEPROM defective

BiCU defective
1. Turn the main power OFF/ON.
2. Reinstall the EEPROM on the BiCU.
3. Replace the EEPROM on the BiCU.
4. Replace the BiCU.
6-51
Service Call 622-691
*1
D255/D256/M281/M282