Konica Minolta bizhub C650 Service Manual page 768

Field Service Ver. 8.0 Jun. 2008
Step Section
Image Process
Adjustment →
16
TCR Toner Supply
(Service Mode)
Image Process
Adjustment
→Gradation Adjust
17
(Service Mode)
Image Process
Adjustment
18
→ D Max Density
(Service Mode)
Image Process
Adjustment
→ Stabilizer →
19
Initialize + Image
Stabilization
(Service Mode)
20
Check item
Toner is properly supplied when
TCR toner supply is run.
"Conv. Value" falls within the speci-
fied range as checked through gra-
dation adjust.
Dark: 0 ± 100
Highlight: 0 ± 60
The problem has been eliminated
through the adjust of D Max.
After the Initialize + Image Stabiliza-
tion sequence has been completed,
run gradation adjust.
The problem has been eliminated
through the checks of steps up to 19.
18. Image quality problem
Result Action
NO Go to next step.
YES Go to step 20.
NO Go to next step.
NO Go to next step.
NO Change imaging unit.
→ Change printer control
board
→Change PH unit.
→Change high voltage unit/2.
713