XZAC4219-05 Service Manual
5-15
FAULT CLASSIFICATION
To simplify the tracing of faults, these have been divided into:
• Faults at power-on;
• Faults during writing of the document;
• Faults with document handling.
The most frequent faults encountered and possible remedies are listed for each assy.
The classifications provided cannot cover all the faults that may occur; if the fault is not amongst those classified, it
may be useful to refer to the description of a similar fault.
Faults at power-on
Fault
Possible cause Solution
The machine does
not switch on
The machine does not
connect with the system
The self-test indicates a
fault on the Motherboard
The self-text indicates an
error in the mechanics
X Mains voltage absent/incorrect
Check the presence and specifications of
the voltage supply
X Mains cable damaged Replace the power cable
X Mains cable only partially inserted Check the connection of the power cable
X Fuse blown Replace the fuse.
X Fault in the power supply unit
Replace the power board. See the section
“Power supply unit disassembly/
reassembly” on page 7 - 26
XXMotherboard fault
Replace the motherboard. See the section
“Disassembling/reassembling the
motherboard (printers with scanner)” on
page 7 - 21 or “Disassembling/
reassembling the motherboard (printers
with serial number 8.xxx.xxx and
1.xxx.xxx)” on page 7 - 23
X Fault in the front photosensors
Carry out the calibration procedure. See
the section“CALIBRATING THE
PHOTOSENSORS” on page 4 - 18
X Fault in the carriage photosensor
Carry out the calibration procedure. See
the section “CALIBRATING THE
PHOTOSENSORS” on page 4 - 18
X Machine cover open Check that the cover is closed correctly.
X Document jammed in machine
Remove the document. See the section
“PAPER JAM” on page 3 - 11
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