2NP
1-3-58
U091
Setting the white line correction
Description
Sets the error detection threshold value for white line correction and displays the count result of
abnormal pixels.
Purpose
To perform when replacing the CIS, DP main PWB or CIS roller.
Method
1. Press the start key.
2. Select the item.
Method: white line correction
1. Press [Execute].
2. Press the start key. Holding of white reference data is started.
3. The count result of abnormal pixels is displayed.
4. Press the system menu key.
5. Place a gray original on the DP with the gray side down. Load paper in the cassette.
The paper should be the same size as the original.
6. Press the start key.
Two test pattern sheets will be printed.(1 st sheet: Approx. 60 mm black band, 2nd sheet:
Blank or approx. 60 mm gray band)
7. If vertical black lines appear on the blank (or gray band) page and vertical white lines appear
on the black band in the same position, clean the CIS roller and the CIS glass and then
repeat white line correction.
If vertical black lines or vertical white lines appear on both sheets, white line correction has
been completed normally. However, the cause of the vertical lines lies in the engine, and thus
the engine must be checked.
8. Press the system menu key.
Mode is set to 1.
Item No.
Description
Display
Description
Calculation(R)
Abnormal pixel count result for color R
Calculation(G)
Abnormal pixel count result for color G
Calculation(B)
Abnormal pixel count result for color B
Threshold(R)
Abnormal pixel detection threshold value for color R
Threshold(G)
Abnormal pixel detection threshold value for color G
Threshold(B)
Abnormal pixel detection threshold value for color B
Threshold
(Abnormal)
Abnormal pixel threshold value setting
Mode
Switching between white line correction mode ON/OFF
Execute
Holding of white reference data
Содержание TASKalfa 2551ci
Страница 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Страница 10: ...This page is intentionally left blank ...
Страница 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Страница 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Страница 473: ...2NP 1 5 62 This page is intentionally left blank ...
Страница 496: ...2NP 2 1 21 Figure 2 1 25 Duplex conveying section block diagram EPWB DU_SW DU_CL_REM YC25 3 YC24 3 DUCL DUS ...
Страница 497: ...2NP 2 1 22 This page is intentionally left blank ...
Страница 544: ...2NP 2 3 37 2 3 5 IH PWB Figure 2 3 5 IH PWB silk screen diagram YC1 1 2 YC8 1 3 YC6 2 1 YC4 6 1 YC3 YC10 YC9 ...
Страница 555: ...2NP 2 3 48 This page is intentionally left blank ...
Страница 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Страница 620: ...DP 773 Document processor Installation Guide ...
Страница 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Страница 654: ...PF 810 3000 sheets deck Installation Guide ...
Страница 667: ...DF 770 D Document finisher Installation Guide ...
Страница 685: ...AK 740 Bridge unit Installation Guide ...
Страница 687: ...PH 7A C D Punch unit Installation Guide ...
Страница 708: ...DT 730 B Document tray Installation Guide ...
Страница 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Страница 711: ...FAX System W B Installation Guide ...