Konica Minolta bizhub PRO 1050 Service Manual page 370

10. SERVICE MODE
10.3.4 Centering adjustment
Adjust the mis-centering of images in the main scan
direction.
This adjustment changes the laser writing start tim-
ing.
A. Printer centering adjustment
Adjust the mis-centering of images on the printer.
Info HJG: Drucker Zentrierung CD
(Siehe untere
NOTE
• Be sure the printer horizontal adjustment
(Side 1) and the printer horizontal adjustment
(Side 2) have been adjusted.
(1) Procedure
1.
Enter the service mode.
2.
"Service mode menu screen"
Press the [01 Machine Adjustment] key.
3.
A sub menu appears on the right side of the
screen.
Press the [04 Centering Adjustment] key on the
sub menu.
4.
"Centering adjustment mode menu screen"
Press the [01 Printer Centering Adjustment] key
and press the [COPY] key.
5.
Select A3 or 11 x 17 paper. Press the Start but-
ton to output the test pattern (No.16).
6.
Fold the printed paper into two along the center
in the main scan direction, and measure how
much the left and right lines misalign from each
other.
• Standard value: within ± 1.5 mm
7. When the value is not within the standard value,
press the [SERVICE] key.
8.
"Printer centering adjustment screen"
Enter a numeric 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.
Info HJG:
Für die Justage muß DIPSW 12 (Bit 3) auf „1" gesetzt
werden (Zentrierungssensor ist dann für die
Justage = deaktiviert) !
Nach der Justage muß der Bit wieder auf „0" gesetzt
werden !
338
2
Info)
Field Service Ver3.0 Nov.2006
B. Scanner centering adjustment
Adjust the mis-centering of images when scanning
from the original glass.
Info HJG: Scannerzentrierung Originalglas
NOTE
• Be sure the printer centering has been
adjusted.
(1) Procedure
1. Enter the service mode.
2. "Service mode menu screen"
Press the [01 Machine Adjustment] key.
3.
A sub menu appears on the right side of the
screen.
Press the [04 Centering Adjustment] key on the
sub menu.
4.
"Centering adjustment mode menu screen"
Press the [02 Scanner Centering Adjustment]
key and press the [COPY] key.
5. Select A3 or 11 x 17 paper, and set the "test
chart" on the original glass. Press the Start but-
ton.
6. Fold the printed paper into two along the center
in the main scan direction, and measure how
much the left and right lines misalign from each
other.
• Standard value: within ± 2 mm
7.
When the value is not within the standard value,
press the [SERVICE] key.
8.
"Scanner (Orig. Glass) centering Adj. screen"
Enter a numeric 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
9.
Repeat steps 5 to 8 until the standard value
can be obtained.