Canon GP405 Service Handbook page 9

Clean the primary charging roller
/transfer charging roller.
¥ To clean the primary/transfer
charging roller, use 'roller clean'
under 'adjustment/clean' in user mode.
Clean the separation static
eliminator.
Is the
setting of 'density
NO
Set it to the
correction' under 'adjust/clean'
medium value.
in user mode the medium
value?
YES
It the
setting of
Enter the value
'ADJUST' in service NO
indicated on the
mode the value indicated on the
label.
label attached to the
front door?
YES
Make 2 to 3 copies in non-AE
at copy density 5.
NO
Are there vertical
lines (white, black)?
YES
Clean the separation static
eliminator, dust-proofing glass,
mirrors (No. 1, No. 2, No. 3),
standard white plate, and lens.
NO
Are the vertical lines gone?
YES
YES
Is the white
background foggy?
NO
End.
D. Image Basic Adjustment Procedure
Service Mode
ADJUST>DENS>DENS-ADJ
Set DENS-ADJ to 5.
Service Mode
FUNCTION>CCD>CCD-ADJ
Execute auto correction.
Open the copyboard cover or the
feeder, and make 2 solid black
copies.
Service Mode
Density Auto Adjustment
5 items under FUNCTION>DENS.
WHITE-ME, PD-DENS, PD-ME,
DZ-DENS, DZ-ME
YES
Is the fogging in the white
background gone?
NO
Service Mode
ADJUST/DENS/DENS-ADJ
Set DENS-ADJ lower than 5.
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