Toshiba e-STUDIO 2555C Service Manual page 723

Classification
Finisher related service call
MJ-1036
Error
EEPROM
Probable cause
Finisher control PC board (FIN)
abnormalit
[CB80] Backup RAM data abnormality
MJ-1107/1108
Classification
Finisher related service call
Check Item
Main power switch
Replacement part
Finisher controller PC board
[CB81] Flash ROM abnormality
MJ-1107/1108
Classification
Finisher related service call
Check Item
Main power switch
Finisher controller PC board
Replacement part
Finisher controller PC board
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Backup RAM data abnormality: Abnormality of checksum value
on finisher controller PC board is detected when the power is
turned ON.
Timing of detection
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.
Checking and measures
Replace the finisher control PC board (FIN) as the cause is a
fault in the IC of the backup RAM.
Backup RAM data abnormality: Abnormality of checksum value
on finisher controller PC board is detected when the power is
turned ON.
Turn OFF the main power switch, then back ON.
Flash ROM abnormality: Abnormality of checksum value on
finisher controller PC board is detected when the power is
turned ON.
Turn OFF the main power switch, then back ON.
Board check
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Contents
Contents
Measure
Measure
Contents
Measure
Measure
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8