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2NP
1-3-59
U091
How to view test copies
Setting: Threshold value setting
1. Select the item to be set.
2. Change the value using the +/- or numeric keys.
* : Normally the Threshold (Com) value should not be changed from 112, the initial setting.
If white lines appear even though the CIS roller and glass are not dirty, raise the set value.
If fine lines in some originals disappear, lower the set value.
Set within the range 50 to 200. (If set outside this range, the image may be affected.)
3. Press the start key. The value is set.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
Item No.
Description
blank sheet
black band
Causes
Corrective measures
No lines
No lines
-
Complete
Black lines
White lines
Dirty CIS roller or CIS
glass
Clean CIS roller or CIS glass
and then perform U091 again
Black lines
No lines
Engine side
U091 ends, check engine
No lines
White lines
Engine side
U091 ends, check engine
Display
Description
Setting
range
Initial
setting
Threshold
(R)(G)(B)
Displaying of abnormal pixel detection
threshold value for color RGB
0 to 1023
112/112/
112
Threshold
(Abnormal)
Abnormal pixel threshold value setting
0 to 8191
75
Mode
Switching between white line correction
mode ON/OFF
0: OFF/
1: ON/
2: Test mode
0
Se
r
vice Manual
Y1
16
1
41-8
Содержание d-Color MF2552 plus
Страница 1: ...SERVICE MANUAL Multifuction Digital Copier d Color MF2552 plus Code Y116141 8...
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