FrameMaker Ver.5.5E(PC) Di250 TROUBLESHOOTING
99.01.08
T-48
(4) Foggy Background
Section Step
Check Item
Result
Action
——
1
Is sunlight or any other extrane-
ous light entering the copier?
YES
Protect the copier from extrane-
ous light.
Engine
1
Is the PC Drum dirty with foreign
matter?
YES
Clean the PC Drum.
2
Is the PC Drum charge voltage
terminal in good condition?
NO
Check and change as neces-
sary.
3
Is the grid voltage terminal in
good condition?
NO
Check and change as neces-
sary.
4
Is the developing bias terminal in
good condition?
NO
Check and change as neces-
sary.
5
Is the Charge Neutralizing Sheet
voltage terminal in good condi-
tion?
NO
Check and change as neces-
sary.
6
Is Eraser Lamp LA1 dirty?
YES
Clean.
7
Does foggy background persist
even after the I/C has been
replaced with a new one?
NO
This completes the procedure.
8
Does foggy background persist
when the “Image Density” value
is changed toward the minus
side? “Image Density” can be
selected as follows: Tech. Rep.
Mode
→
Tech. Rep. Choice
→
Printer.
NO
This completes the procedure.
9
Does foggy background persist
when the “VG Adjust” value is
changed toward the minus side?
“VG Adjust” can be selected as
follows: Tech. Rep. Mode
→
Tech. Rep. Choice
→
Printer.
YES
Change HV1, PH Unit, or PWB-
A, in that order.
NO
This completes the procedure.
IR
1
Are the mirrors and lens dirty?
YES
Clean or change.
2
Is the Exposure Lamp dirty or
deteriorated?
YES
Clean or change.
3
Do the connections between the
Exposure Lamp and INV remain
intact?
NO
Reconnect.
4
Do the connections from INV to
BCR remain intact?
NO
Reconnect.
5
Do the connections from BCR to
HGB remain intact?
NO
Reconnect.
6
Do the connections from HGB to
UN2 remain intact?
YES
Change INV, BCR, HGB, or
UN2, in that order.
NO
Reconnect.
Содержание D 2500iD
Страница 1: ...Service Manual Digital Copier DEVELOP D 2500iD ...
Страница 8: ...GENERAL D 2500iD ...
Страница 23: ...MECHANICAL ELECTRICAL D 2500iD ...
Страница 76: ...SWITCHES ON PWBs TECH REP SETTINGS 17196 D 2500iD ...
Страница 121: ...DIS REASSEMBLY ADJUSTMENT 18605 D 2500iD ...
Страница 178: ...TROUBLESHOOTING 14413 D 2500iD ...