Color Correction Data Write Abnormality; Color Correction Data Transfer Abnormality; Icu-Scn Communication Trouble (Icu Detection); Icu-Pcu Communication Trouble (Icu Detection) - Sharp AR-BC260 Service Manual

Main Sub Color correction data write
Title
code code abnormality
E7 40 Display Lamp/Message
Phenomenon Detail
Section MFP PWB
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Main Sub Color correction data transfer
Title
code code abnormality
E7 41 Display Lamp/Message
Phenomenon Detail
Section MFP PWB
Case 1 Cause
Check &
Remedy
Main Sub ICU-SCN communication trouble
Title
code code (ICU detection)
E7 80 Display Lamp/Message
Phenomenon Detail
Section ICU/MFP PWB
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Data write error to the
Nand-Flash for holding
color correction data
Color correction data
rewrite error
Perform rewriting of color
correction data again.
MFP PWB trouble
Replace the MFP PWB.
Data transfer error from the
Nand-Flash for holding
color correction data to the
FC-RAM for holding color
correction image process
MFP PWB trouble
Replace the MFP PWB.
Communication
establishment error,
framing, parity, protocol
error
Disconnection of the ICU/
MFP PWB scanner
communication connector.
Defective harness of the
ICU PWB and the MFP
PWB.
Check connection of the
ICU PWB and the MFP
PWB. Check the harness.
ICU/MFP PWB trouble
Check grounding of the
machine. Replace the ICU
PWB or the MFP PWB.
AR-BC260 TROUBLESHOOTING 11 - 6
Main Sub ICU-PCU communication trouble
Title
code code (ICU detection)
E7 90 Display Lamp/Message
Phenomenon Detail
Section ICU/PCU PWB
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Main Sub Saddle finisher communication
Title
code code trouble (Machine detection)
F1 00 Display Lamp/Message
Phenomenon Detail
Section PCU PWB and saddle
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Case 3 Cause
Check &
Remedy
Case 4 Cause
Check &
Remedy
Common Cancel
method
Communication
establishment error,
framing, parity, protocol
error
Disconnection of the ICU/
PCU PWB scanner
communication connector.
Defective harness of the
ICU PWB and the PCU
PWB.
Check connection of the
ICU PWB and the PCU
PWB. Check the harness.
ICU/PCU PWB trouble
Check grounding of the
machine. Replace the ICU
PWB or the PCU PWB.
Communication line test
error when turning on the
power or after canceling the
exclusive simulation.
Communication error with
the saddle finisher.
finisher
Disconnection of the PCU-
saddle finisher connector,
defective contact or
disconnection of the
harness.
Check the connector and
the harness of the
communication line.
Saddle finisher control PWB
trouble
Replace the saddle finisher
control PWB.
Control PWB (PCU) trouble
Replace the PCU PWB.
Malfunctions by noises
—
Can be canceled by turning
OFF/ON the power.