2WA/2NJ/2RK
6-178
Contents
Scan the test pattern image distribution directly from the scanner.
Purpose
Execute when the drum unit or laser scanner unit is replaced.
Correct uneven developer/transfer density in the main scanning direction.
* :After completing, execute maintenance mode U464 [Calibration].
Method
1.Press the [Start] key.
2.Select the item to set.
* :The screen for executing is displayed.
Method: Normal Mode
1.Select the [Normal Mode] .
* :Test Pattern is outpu with the initial light amount setting after about 60s of the aging opera-
tion. (1st sheet)
2.Set the test pattern 1 and place approximately 20 sheets of white paper on it.
3.Press the [Start] key. Scanning starts.
* :Test pattern is output after completing scanning. (2nd sheet)
* :According to the test pattern of 1st sheet, output with -20% light intensity setting.
4.Set the test pattern 1 and place approximately 20 sheets of white paper on it.
5.Press the [Start] key. Scanning starts.
* :Test pattern is output after completing scanning. (3rd sheet)
6.Set the test pattern 1 and place approximately 20 sheets of white paper on it.
7.Press the [Start] key.
* :Check the correction result. [Finish] appears after normal completion.
1st retrial
8.[Retry] appears unless normally completed.
9.Execute Step 3 to 7
2nd retrial
10.[Retry] appears unless normally completed.
11.Execute Step 3 to 7
* :An error code appears when an error occurs.
U412 Adjusting the uneven density
(Message: Adjust Uneven Density)
Items Contents
Normal Mode Normal Mode
On/Off Config Uneven density correction On/Off setting
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