Completely Blank Printout; Check Procedures/Corrective Measures - Olivetti d-Copia 3003MF Service Manual

(1) Completely blank printout.

Print example
Connection failure with DP con-
nector.
Defective drum unit or developer
unit.
Defective transfer bias output or
developer bias output.
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.
Defective laser scanner unit.
Defective control PWB.
Service Manual
Causes
1-4-14

Check procedures/corrective measures

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.
DP connector
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)
Replace the high voltage PWB (See page 1-5-43).
Check the high voltage PWB visually and correct or
replace if necessary (See page 1-5-43).
Replace the laser scanner unit (See page 1-5-17).
Replace the control PWB (See page 1-5-37).
2MH/2MJ/2MK/2ML
DP
Y113860-1