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.
–
–
–
Summary of Contents for MF Series
Page 1: ...XEROX TECHNICAL DOCUMENT 252 787 467 A...
Page 73: ...4 NI IPL 252 787 467 A PLANCHE 1 FIGURE 1 3 2 1 4 7 6 5...
Page 75: ...6 NI IPL 252 787 467 A PLANCHE 2 FIGURE 2 1 3 5 6 2 4...
Page 77: ...8 NI IPL 252 787 467 A 2 1 PLANCHE 3 FIGURE 3...
Page 79: ...10 NI IPL 252 787 467 A PLANCHE 4 FIGURE 4 1 5 6 7 4 3 2 8...
Page 81: ...12 NI IPL 252 787 467 A 1 4 2 3 7 8 5 6 PLANCHE 5 FIGURE 5...
Page 83: ...14 NI IPL 252 787 467 A 1 2 3 4 5 6 7 8 PLANCHE 6 FIGURE 6...
Page 85: ...16 NI IPL 252 787 467 A 1 2 PLANCHE 7 FIGURE 7...
Page 87: ...18 NI IPL 252 787 467 A PLANCHE 8 FIGURE 8 1 2 4 5 3...
Page 89: ...20 NI IPL 252 787 467 A PLANCHE 9 FIGURE 9...
Page 91: ...22 NI IPL 252 787 467 A 2 1 PLANCHE 10 FIGURE 10...
Page 93: ...24 NI IPL 252 787 467 A 3 HV1 2 1 PLANCHE 11 FIGURE 11...
Page 95: ...26 NI IPL 252 787 467 A 1 22 21 3 4 2 8 9 7 6 PLANCHE 12 FIGURE 12...
Page 98: ...PRINTER 20 PPM SERVICE MANUAL TECHNICAL DOCUMENT 251 475 943 A...
Page 113: ...INDEX MECHANICAL ELECTRICAL GENERAL TROUBLESHOOTING DIS REASSEMBLY ADJUSTMENT MAINTENANCE...
Page 117: ...GENERAL...
Page 123: ...MECHANICAL ELECTRICAL...
Page 146: ...MAINTENANCE...
Page 156: ...DIS REASSEMBLY ADJUSTMENT...
Page 168: ...TROUBLESHOOTING...
