Toshiba e-STUDIO477S Service Manual page 133

System Spec.
Code Category Cause
E728 Error ADF document Detection of chattering of a sensor
jam – Chattering of a sensor is detected.
Once a sensor becomes active, the
sensor becomes inactive in 5mm
feeding of the document. Then the
inactive sensor becomes active in
the next 5mm feeding. (Simplex and
Duplex)
E741 Error ADF Reverse paper sensor stuck jam/
document jam detection of out-of-spec oversized
documents – The reverse paper sensor
does not become inactive when the
document is transferred to the distance
exceeding the maximum page size.
(Duplex)
E742 Error ADF Detection of out-of-spec undersized
document jam documents – The reverse paper sensor
becomes inactive before the document
is transferred by the distance equal to
the minimum page size. (Duplex)
E743 Error ADF document Non-arrival at the regist paper sensor at
jam reversing to the front – After reversing
to the front, the regist paper sensor
does not become active in a lapse of a
certain period of time. (Duplex)
E744 Error ADF document Non-arrival at the regist paper sensor
jam at reversing to the back – When the
document is transferred following
reversal to the back, the regist paper
sensor does not become active.
(Duplex)
E870 Error ADF document ADF open jam – A document jam is
jam caused by opening of the ADF while
the RADF is operating.
C260 ServiceCall Scanner lamp Lamp error – Exposure adjustment has
error failed.
C270 ServiceCall Scanner home The home position sensor does not
position error become inactive in the designated
period of time – The carriage does not
move from the home position in the
designated period of time.
45387101TH Rev.1
Error details Measure
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
Remove every jammed
document from the paper
feed path, and close the
ADF cover.
Power cycle the unit.
If the power cycle does not
work to recover from the
error, the unit needs repair.
The CIS may be damaged.
Power cycle the unit.
If the power cycle does not
work to recover from the
error, the unit needs repair.
The possible cause is
the damage of the home
position sensor, the belt
that moves CIS, or the FB
motor.
System Spec.
Code Category Cause
C280 ServiceCall Scanner home The home position sensor does not
position error become active in the designated period
of time – The carriage does not reach
the home position in the designated
period of time. The sensor malfunctions.
C291 ServiceCall Scan position Scan position detect error – The black
detect error edge is not detected in scanning.
none Error ADF cover ADF cover open
open
none Warning/ Scanner Carriage warning – The carriage does
Error carriage not return to the home position after the
warning scan. This error may occur when a user
presses the document hard against the
FB to scan.
F110 ServiceCall Communication System CPU - Scanner CPU
error between communication error
system CPU
and Scanner
CPU
F111 ServiceCall Scanner Scanner response anomaly
response
anomaly
F112 ServiceCall Controller CU-SU communication error detected
response by the scanner
anomaly
F113 ServiceCall Scanner CPU Anomalous program on the scanner
exception side
F114 ServiceCall Scanner CPU CPU exception on the scanner side
exception
6. Troubleshooting and repair procedure
Error details Measure
Power cycle the unit.
If the power cycle does not
work to recover from the
error, the unit needs repair.
The possible cause is
the damage of the home
position sensor, the belt
that moves CIS, or the FB
motor.
Power cycle the unit and
retry to scan.
If the error occurs again
in the next scan, the unit
needs repair.
The calibration sheet may
not be installed properly.
Close the ADF cover.
Perform the recovery
procedure according to the
guidance.
If the error occurs frequently,
check for the proper
connection between the CU
PCB and the SU PCB.
The SU PCB, the scanner
or the scanner firmware
may have some problems.
If the error occurs frequently,
check for the proper
connection between the CU
PCB and the SU PCB.
The SU PCB, the scanner
or the scanner firmware
may have some problems.
The SU PCB, the scanner
or the scanner firmware
may have some problems.
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