Xerox MF Series, Техническая документация

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T-12
(2) Laser malfunction
<Detection Timing>
<Troubleshooting Procedures>
(3) Cooling Fan Motor malfunction
<Detection Timing>
<Troubleshooting Procedures>
Description
• The laser output exceeds the upper limit value.
• The laser output remains lower than the lower limit value.
• The Start Scan signal (-S_SCAN) is not detected at all within a predetermined period of
time after the laser has been turned ON.
• The Start Scan signal (-S_SCAN) is turned OFF.
Relevant Electric Parts
PH Unit
Flat cable Controller/Mechanical Control Board (PWB-P)
Step Action Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electric Parts)
1 Check cables for connection and
correct as necessary.
– – –
2 Replace PH Unit. – – –
3 Replace PWB-P. – – –
Description
• The LOCK signal remains HIGH or LOW continuously for a predetermined period of
time while the Cooling Fan Motor remains energized.
Relevant Electric Parts
Cooling Fan Motor (M2) Controller/Mechanical Control Board (PWB-P)
Power Unit (PU1)
Step Action Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electric Parts)
1 Check the Motor connectors for
connection and correct as neces-
sary.
– – –
2 Check the fan for possible overload
and correct as necessary.
– – –
3 M2 operation check
☞
T-3
PWB-P PJ13A-1
to 3 (pulse)
5-F
4 Replace PWB-P. – – –