Black Image; Stained Separation Strip - Canon LBP-CX Series Service Manual

1-4 Black image
Cause Step Check Result Measure
EP cartridge l Is the primary corona wire broken? YES
Replace the EP cartridge.
High-voltage power 2 Does the voltage between J 601-8 YES Check J601 and JS for good con-
supply, DC controller (HVPR) and 1601-1 (GND) of the tact. If both are good, replace the
PCB
high-voltage power supply vary high-voltage power supply.
from about
+
18 VDC to about
NO
Check the wiring between J2 l l on
+
l VDC as soon as the main motor
the DC controller and 1601. If it is
begins rotating?
good, replace the DC controller PCB.
1-5 Stained separation strip
LP
Cause Step
Check Result Measure
Separation belt, l
Are the separation belt, separation
YES Clean them.
separation roller,
roller, or pinch roller dirty?
NO
Replace the EP cartridge.
pinch roller,
EP cartridge
7-18
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BY CANON INC. CANON LBP-CX SERIES REY.2 JULY 1985 PRINTm Ill JAPAN (IMPRIME AU JAPOlll