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22. IMAGE QUALITY PROBLEM
Field Service Ver. 2.0 Jul. 2009
882
TROUBLESHOOTING
14
Hopper unit
Connectors are loose.
YES
Reconnect.
15
Gear is cracked.
YES
Change gear.
16
Image Process
Adjustment
o
TCR Toner Supply
(Service Mode)
Toner is properly supplied when
TCR toner supply is run.
NO
Go to next step.
17
Image Process
Adjustment
o
Gradation Adjust
(Service Mode)
“Conv. Value” falls within the speci-
fied range as checked through gra-
dation adjust.
Dark: 0 ± 100
Highlight: 0 ± 60
YES
Go to step 20.
18
Image Process
Adjustment
o
D Max Density
(Service Mode)
The problem has been eliminated
through the adjust of D Max.
NO
Go to next step.
19
Image Process
Adjustment
o
Stabilizer
o
Init Image
Stabilization
(Service Mode)
After the Init Image Stabiliza-
tion sequence has been completed,
run gradation adjust.
NO
Go to next step.
20
The problem has been eliminated
through the checks of steps up to 19.
NO
Change imaging unit.
o
Change printer control
board
o
Change PH unit.
o
Change high voltage unit/2.
Step
Section
Check item
Result
Action
Service Manual Y110571-1
Содержание d-color MF651
Страница 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Страница 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 511: ...Field Service Ver 2 0 Jul 2009 10 UTILITY 451 ADJUSTMENT SETTING Blank Page Y110571 1 Service Manual...
Страница 716: ...16 MECHANICAL ADJUSTMENT Field Service Ver 2 0 Jul 2009 656 ADJUSTMENT SETTING Blank Page Service Manual Y110571 1...
Страница 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...