Printer Left Margin (Centering Adjustment) - Konica Minolta bizhub PRO 920 Service Manual

10. TECH. REP. MODE

10.3.14 Printer left margin (centering adjustment)

Adjust the image mis-centering of the main scan direction on the printer.
This adjustment changes the laser writing start timing.
Note
• Be sure the printer paper feed cross adjustment have 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 [Printer Left Margin] key and press the [Test Copy] key.
5.
Select A3 or 11 x 17 paper. Press the Start button to output the test pattern (No.16).
6.
Fold the output paper into two at the center in the main scan direction and check the discrepancy from
the center line of the print.
Standard value: within 0 ± 1.5 mm
7.
When the value is not within the standard value, press the [Adjustment] key.
8.
"Printer centering adjustment screen"
Enter a value through the numeric keys and press the [Set] key.
Setting range: -64 (image in front) to +63 (image in back) 1 step = 0.1 mm
9.
Repeat steps 5 to 8 until the standard value can be obtained.
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Field Service Ver2.0 Aug.2005