Service manual
Table Of Contents
AR-C200P Rev.5 132 /
2 Dirty Background. (Fig. 5-2 B )
• Was the image drum exposed to external light for a long time?
Yes Replace the I/D unit.
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• No Is the roller in the fuser unit dirty?
Yes Replace the fuser unit.
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• No Correct the PAPER THICKNESS setting.
Light: 64 g/m
2
Medium Light: 64 to 74 g/m
2
Medium: 75 to 90 g/m
2
Medium Heavy: 91 to 104 g/m
2
Heavy: 105 to 120 g/m
2
Ultra Heavy 121 to 203 g/m
2
Transparency
No Set [Paper Thickness] properly.
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• No Is the LED head assembly connected properly to the connection board (Y73 PWB)?
No Connect the LED head assembly properly to the connection board (Y73 PWB).
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• Yes Is +5V output to the following power pins on the connection board (Y73 PWB)?
+5V: Pin 1, 2, 3, 4, 5, 6
• Yes Is +5V output to the following cable connector pins between the connection board (Y73
PWB) and LED head assembly?
3 pin for YPOW connector : LED head assembly - yellow
3 pin for MPOW connector : LED head assembly - magenta
3 pin for CPOW connector : LED head assembly - cyan
3 pin for KPOW connector : LED head assembly - black
No Replace the connection board (Y73 PWB).
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• Yes Check the cable connections, then replace the LED head assembly.
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• No Check the cable connections, then replace the low-voltage power unit. Did the printer
recover?
Yes End.
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• No Is 34V output to the power connector on the engine board (K7N PWB)?
+34V: Pin 12, 13, 14
No Check the cable connections, then replace the low-voltage power unit.
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• Yes Is 34V output to the power connector pin 2 on the engine board (K7N PWB)?
+34V: Pin 12, 13, 14
No Replace the engine board.
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• Yes Check the cable connections, then replace the high-voltage power unit or belt cassette
assembly.
Yes End.
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• No Is the I/D unit terminal connected properly to the contact assembly. (See Fig. 5-2)
No Connect the I/D unit terminal properly to the contact assembly.
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• Yes Replace the image drum unit.
Note:
1. Remove EEPROM from the old board and set it on the new board upon replacing the
engine board (K7N PWB).
2. If EEPROM is not replaced, refer to section 3.2.2.