2HJ/2HK
1-4-24
(1) No image appears (entirely white).
(2) No image appears (entirely black).
(3) A specific color is printed solid.
Print example
Causes
Check procedures/corrective measures
The LED
print
head has
not done
function-
ing.
Defective FFC connection
to the LED print heads
relay PWB.
Check the FFC connection to the LED print heads relay PWB.
(Do not attempt to disconnect/connect the FFC while power is
on.) See page 1-5-15.
Defective FFC connection
to the LED print head.
Check the FFC connection to the LED print head. See page 1-
5-15.
Defective main controller
PWB.
Replace the main controller PWB (A0171). See page 1-5-40.
Defective LED print heads
relay PWB.
Replace the LED print heads relay PWB (A0176). See page 1-
5-44.
Defec-
tive
develop-
ing
sleeve
bias or
develop-
ing mag-
net bias
output.
Defective engine control-
ler PWB.
Replace the engine controller PWB (A0004). See page 1-5-41.
Defective main high volt-
age PWB.
Replace the main high voltage PWB. See page 1-5-45.
Defec-
tive sec-
ondary
transfer
bias out-
put.
Defective engine control-
ler PWB.
Replace the engine controller PWB (A0004). See page 1-5-41.
Defective bias high volt-
age PWB.
Replace the bias high voltage PWB. See page 1-5-46.
Malfunction of the developer installa-
tion.
Reinstall the developer. See page 1-5-12.
Print example
Causes
Check procedures/corrective measures
No main
charging.
Poor contact of output ter-
minal of main high volt-
age PWB.
Check the installation of the main high voltage PWB, If it instal-
lation incorrectly, reinstall it. See page 1-5-45.
Defective main high volt-
age PWB.
Replace the main high voltage PWB. See page 1-5-45.
Defective engine control-
ler PWB.
Replace the engine controller PWB (A0004). See page 1-5-41.
Defective LED print heads relay PWB. Replace the LED print heads relay PWB (A0176). See page 1-
5-44.
Print example
Causes
Check procedures/corrective measures
Defective main charger unit which
corresponds to the color causing the
problem.
Check if the main charger unit is properly seated. If necessary,
reseat it properly.
Disconnected main charger wire.
Replace main charger unit.
Содержание CLP3316
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