Scanner (Adf) Left Image (Centering Adjustment) - Konica Minolta bizhub PRO 920 Service Manual

10. TECH. REP. MODE

10.3.16 Scanner (ADF) left image (centering adjustment)

Adjust the image mis-centering of the main scan direction when scanning from the DF.
This adjustment changes the laser writing start timing.
Note
• Be sure "10.3.14 Printer left margin (centering adjustment)" has been adjusted.
A. Procedure
1.
Enter the Tech. Rep. mode.
2.
"Tech. Rep. mode menu screen"
Press the [Machine Adjust] key.
3.
A sub menu appears on the right side of the screen.
Press the [Centering Adjustment] key on the sub menu.
4.
"Centering adjustment mode menu screen"
Press the [Scanner (ADF) Left Image] key
5.
"ADF centering adj. screen"
Press the [Next] or the [Back] key to select the item you adjust, and press the [Test Copy] key.
The item switches as follows:
Side1:Small → Side2:Small → Side1:Large → Side2:Large
Note
• "Small" represents paper which is smaller than 300 mm in the sub-scan direction.
• "Large" represents paper which is larger than 300 mm in the sub-scan direction.
6.
Select paper according to the adjusted item. Set the "adjustment chart" on the DF and press the Start
button.
7.
Fold the outputted paper in half in the main scan direction and check the amount of centering error.
Standard value: within 0 ± 2 mm
8.
When the value is not within the standard value, press the [Adjustment] key.
9.
"Scanner (ADF) Left Image"
Enter a value through the numeric keys and press the [Set] key.
Setting range: -30 (image in front) to +30 (image in back) 1 step = 0.1 mm
10.
Repeat steps 5 to 9 until the standard value can be obtained.
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Field Service Ver2.0 Aug.2005