2PK/2PL/2PM/2PN
1-4-18
(1) Completely blank printout.
Print example Causes Check procedures/corrective measures
Connection failure with DP con-
nector.
If a blank copy is made because the original loaded in
the DP is not fed after the Start key is pressed:
Turn the power switch off, investigate the DP connector
connection, and firmly connect the DP connector.
Defective drum unit or developer
unit.
Open the front cover and check that the drum unit and
developer unit are correctly seated (See page 1-5-28
and 1-5-27).
Investigate that the terminals between the main charger
unit and the drum unit are not in loose contact (See
page 1-5-28)
Defective transfer bias output or
developer bias output.
Replace the high voltage PWB (See page 1-5-43).
Poor contact of developer bias
terminal (spring) and high volt-
age output terminal B (J401,
J402, J403) on the high voltage
PWB.
Poor contact of transfer bias ter-
minal (spring) and transfer bias
terminal T (J201, J202, J203) on
the high voltage PWB.
Check the high voltage PWB visually and correct or
replace if necessary (See page 1-5-43).
Defective laser scanner unit. Replace the laser scanner unit (See page 1-5-17).
Defective control PWB. Replace the control PWB (See page 1-5-37).
DP connector
DP
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