Konica Minolta 7075/FORCE 75, Service Manual

Page: 408 / 844

1 - 74
36 ADJUSTMENT
[8] Magnification Adjustment
Adjusting the printer and copy vertical and horizontal
magnifications.
1.
Select
2
Image adjustment in the 36 Mode Menu
Screen to display the Image adjustment mode
menu Screen.
2. Press
2
Magnification adjustment in the Image
adjustment mode menu Screen to display the
Magnification adjustment mode menu Screen.
3. Magnification adjustment consists of the following:
1
Printer drum clock adjustment
2
Printer horizontal adjustment
3
Scanner drum clock adjustment
4
RADF drum clock adjustment
4. Press the number key corresponding to the item
to be adjusted.
The adjustment screen for the selected item is
displayed.
5. After adjustment completes, the screen returns
to the Magnification Adjustment Menu Screen.
6. Press the
PREVIOUS SCREEN
key on the Magnifi-
cation Adjustment Menu Screen to return to the
Image adjustment Menu Screen.
Caution: Check and adjust the printer drum clock
adjustmant during maintenance. Also
adjust the printer restart timing
because it changes with the printer
drum clock adjustment.
1. Printer vertical magnification adjustment
Adjusting the printer vertical magnification.
Step Operation
1 Enter the 36 mode.
2 [36 Mode Menu Screen]
Press “
2
Image adjustment.”
3 [Image adjustment mode menu Screen]
Press “
2
Magnification adjustment.”
4 [Magnification adjustment mode menu
Screen]
Press “
1
Printer drum clock adjustment.”
5 [Printer drum clock adjustment
Screen]
Press the
COPY SCREEN
key.
6 Select A3-size paper and press the Start
button to output the test pattern (No.16).
7 Measure the vertical magnification with
a ruler.
Specification: ±0.5% or less (100%
magnification) Within with
respect to 102.8 mm
8 If the specification is not satisfied, press
the C button while pressing the P button.
9 [Printer drum clock adjustment
Screen]
Enter a value using the numeric keys and
press the
SET
key.
Setting range: -27 to +100
1 step=0.05%
10 Repeat steps 5 to 9 until the specifica-
tion is satisfied.
11 Press the
PREVIOUS SCREEN
key to re-
turn to the Magnification adjustment
mode menu Screen.
102.8
0
-0.5
3
METHOD
REPLACEMENT
MODEL
7075/7085
MANUAL
SERVICE HANDBOOK
REVISED EDITION
3
DATE
Jan. 2002
PAGE
1-74
0 mm
-0.5 mm