Toshiba e-studio 2555c, Service Manual, Page: 723 / 1558

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© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8 - 167
MJ-1036
[CB80] Backup RAM data abnormality
MJ-1107/1108
[CB81] Flash ROM abnormality
MJ-1107/1108
Classification Contents
Finisher related service call Backup RAM data abnormality: Abnormality of checksum value
on finisher controller PC board is detected when the power is
turned ON.
Error Timing of detection
EEPROM
Data readout check is performed after data writing and the
result of the data readout check does not conform to the written
data.
The equipment does not enter the ready status after the
specified time has passed from data writing.
Probable cause Checking and measures
Finisher control PC board (FIN)
abnormalit
Replace the finisher control PC board (FIN) as the cause is a
fault in the IC of the backup RAM.
Classification Contents
Finisher related service call Backup RAM data abnormality: Abnormality of checksum value
on finisher controller PC board is detected when the power is
turned ON.
Check Item Measure
Main power switch Turn OFF the main power switch, then back ON.
Replacement part Measure
Finisher controller PC board
Classification Contents
Finisher related service call Flash ROM abnormality: Abnormality of checksum value on
finisher controller PC board is detected when the power is
turned ON.
Check Item Measure
Main power switch Turn OFF the main power switch, then back ON.
Finisher controller PC board Board check
Replacement part Measure
Finisher controller PC board