Scanner Error Troubleshooting - Toshiba e-STUDIO477S Service Manual

6.5.3 Scanner error troubleshooting

System Spec.
Code Category Cause
E711 Error ADF document Jam due to non-arrival at the hopping
jam sensor – After paper feeding is started,
the hopping sensor does not become
active. (Simplex and Duplex)
E712 Error ADF document Jam due to non-arrival at the regist
jam paper sensor – After feeding for a
simplex document scan is started, the
regist paper sensor does not become
active. (Simplex)
E713 Error ADF document Jam due to non-arrival at the reverse
jam paper sensor – After feeding for a
duplex document scan is started, the
reverse paper sensor does not become
active. (Duplex)
E714 Error ADF document Jam due to document removal – In
jam the middle of feeding for a simplex
document scan, the document set
sensor becomes inactive. (Simplex and
Duplex)
E715 Error ADF document Activation of the hopping sensor at
jam document reversal – The hopping
sensor becomes active when the
reverse paper sensor is inactive. Multi-
feed of documents is detected. (Duplex)
E778 Error ADF document Remaining document detection at
jam power on – A sensor other than the
document set sensor becomes active
when the power is turned on or the
cover is opened and closed during
operation.
E779 Error ADF document Activation of only the document set
jam sensor – Only the document set sensor
becomes active at initialization of the
ADF stopper gate.
E721 Error ADF document Jam due to non-arrival at the scan
jam sensor – Although the fed document
is transferred to a certain distance, the
scan sensor does not become active.
(Simplex and Duplex)
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.
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.
System Spec.
Code Category Cause
E722 Error ADF document Regist paper sensor stuck jam/detection
jam of out-of-spec oversized documents –
Once the regist paper sensor becomes
active, it does not become inactive
when the fed document is transferred to
the distance exceeding the maximum
page size. (Simplex and Duplex)
E723 Error ADF document Detection of out-of-spec undersized
jam documents – Once the regist paper
sensor becomes active, it becomes
inactive before the fed document is
transferred by the distance equal to
the minimum page size. (Simplex and
Duplex)
E724 Error ADF document Scan sensor stuck jam – The scan
jam sensor does not become inactive even
when the fed document is transferred
by 60mm after the regist paper sensor
becomes inactive. (Simplex and
Duplex)
E725 Error ADF document Detection of a too little space between
jam documents – Before the document is
transferred by 31mm after the regist
paper sensor becomes inactive, the
sensor becomes active. Detection of a
too little space between the documents.
(Simplex)
E726 Error ADF document Activation of the reverse paper sensor
jam for the documents not to be reversed
– Switching to the first separator is not
carried out normally causing activation
of the reverse paper sensor. (Simplex
and Duplex)
• The reverse paper sensor becomes
active in feeding of a simplex document.
• The reverse paper sensor becomes
active between reversal to the back and
activation of the regist paper sensor.
E727 Error ADF document Activation of a sensor at an unintended
jam timing – The scan sensor, regist paper
sensor, hopping sensor or reverse
paper sensor becomes active at
an unintended timing. (Simplex and
Duplex)
6. Troubleshooting and repair procedure
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.
Open the ADF cover,
remove every jammed
document from the paper
feed path, and close the
ADF cover.
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