2JZ/2JX/2JV/2H7-5
1-3-122
U412
Adjusting the uneven density
Description
Adjusts the uneven developing/transfer density in the drum axis direction by scanning directly the density dis-
tribution of test pattern with the scanner and adjusting LSU light quantity.
Purpose
To perform when replacing the drum unit or laser scanner unit.
Method
1. Press the start key.
2. Select the item. The screen for executing is displayed.
Method: [Adjust Uneven Density]
1. Select [Adjust Uneven Density].
2. Select [Default Value].
A test pattern is outputted with the initial light quantity setting. (1st sheet)
3. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
4. Press the start key. A test pattern is outputted. (2nd sheet)
A test pattern is outputted with light quantity setting lower than the 1st test pattern by 20%.
5. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
6. Press the start key. A test pattern is outputted. (3rd sheet)
7. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
8. Press the start key.
The correction result is checked. When normally completed, [COMPLETE] is displayed.
Retray (1st time)
9. If the correction is not completed normally, [Retry] is displayed and a test pattern is outputted. (4th
sheet)
A test pattern is outputted with light quantity setting lower than the 3rd test pattern by 20%.
10. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
11. Press the start key. A test pattern is outputted. (5th sheet)
12. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
13. Press the start key.
The correction result is checked. When normally completed, [COMPLETE] is displayed.
Retray (2nd time)
14. If the correction is not completed normally, [Retry] is displayed and a test pattern is outputted. (6th
sheet)
A test pattern is outputted with light quantity setting lower than the 5th test pattern by 20%.
15. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
16. Press the start key. A test pattern is outputted. (7th sheet)
17. Place approximately 20 sheets of white paper on the output test pattern and place as the original.
18. Press the start key.
The correction result is checked. When normally completed, [COMPLETE] is displayed
If a problem occurs during auto correction, error code is displayed.
[SetDef] is displayed in case of an engine error.
Error codes
Maintenance
item No.
Description
Display
Description
Adjust Uneven Density
Executing the uneven density correction
ON/OFF Config
Uneven density correction ON/OFF setting
Codes
Description
Corrective measures
S01
Order error
Check the original
S02
Patch not detected
Check the original
S03
Original deviation in the main scanning direction
Check the original
S04
Original deviation in the auxiliary scanning direction Check the original
S05
Original inclination error
Check the original
Summary of Contents for TASKalfa 250ci
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Page 390: ...2JZ 2JX 2JV 2H7 1 2 3 2 Power source PWB ...
Page 395: ...2JZ 2JX 2JV 2H7 1 2 3 7 Engine PWB ...
Page 412: ...2JZ 2JX 2JV 2H7 1 2 3 24 Main PWB ...
Page 430: ...2JZ 2JX 2JV 2H7 1 2 3 42 Feed PWB 40 40 50 40 ppm model Feed PWB 25 25 30 30 ppm model ...
Page 450: ...2JZ 2JX 2JV 2H7 2 4 8 ...
Page 493: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 503: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 558: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 572: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 580: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 592: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 602: ...INSTALLATION GUIDE FOR FAX System ...
Page 619: ...INSTALLATION GUIDE FOR DT 710 ...
Page 622: ...INSTALLATION GUIDE FOR DUCT UNIT ...
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