Timing Adjustment; Vertical/Horizontal Magnification Adjustment - Konica Minolta 7145 Service Manual

7145 series Field Service Ver.4.0 Mar. 2004
8.8

Timing adjustment

This function adjusts each timing. When timing
adjustment is performed, use A3 or 11 x 17 size
paper.
A. Procedure
1. Select [2. Timing adj.] in the "36 mode menu
screen".
The "Timing adjustment menu screen" will
appear.
• The following items are included in the timing
adjustment.

"1 Vertical/horizontal magnification adjustment"

"2 Restart timing adjustment"
"3 Paper feed loop amount adjustment"
"4 Leading edge original erasure amount adjust-
ment"
"5 Centering adjustment"
"6 Image read point adjustment"
"7 Restoring standard data"
2. Press the item key to be adjusted. The selected
setting screen will appear.
3. Press the [RETURN] key in each of the timing
adjustment screens to return to the "Timing
adjustment menu screen".
8.8.1 Vertical/Horizontal magnification adjust-
ment
The vertical and horizontal magnifications of the
printer system and the copy system are adjusted.
A. Procedure
1. Select [2. Timing adj.] in the "36 mode menu
screen".
The "Timing adjustment menu screen" will
appear.
2. Select the [1. Drum clock adj.] on the "Timing
adjustment menu screen".
The "Drum clock adjustment (vertical/horizontal
magnification adjustment)" will appear.
3. This adjustment has the following items. These
can be selected by pressing the arrow key:
• Vertical magnification adjustment : Printer
• Vertical magnification adjustment : Printer 2
• Vertical magnification adjustment : Platen
• Horizontal magnification adjustment : Platen
• Vertical magnification adjustment : RADF (single
side, 50%)
• Vertical magnification adjustment : RADF (single
side, 100%)
• Vertical magnification adjustment : RADF (single
side, 200%)
• Vertical magnification adjustment : RADF (single
side, 400%)
• Vertical magnification adjustment : RADF (dou-
ble side, 50%)
• Vertical magnification adjustment : RADF (dou-
ble side, 100%)
• Vertical magnification adjustment : RADF (dou-
ble side, 200%)
• Vertical magnification adjustment : RADF (dou-
ble side, 400%)
4. Enter data from the numeric keys on the screen,
then press the [SET] key to enter the data that
have been entered.
5. Press the [COPY] key to return to the basic
screen, then make a test copy.
6. Press the # button while pressing the
return to the Vertical/Horizontal magnification
adjustment screen.
7. Press the [RETURN] key in the "Vertical and
horizontal magnification adjustment screen" to
return to the "Timing adjustment menu screen".
(1) Printer vertical magnification adjustment
With the amount of the paper feed loop
adjusted properly between the registration
roller and the fixing roller, the transfer slippage
in the position about 20mm from the trailing
edge of the transfer paper is prevented.
a. Procedure
1. Enter the 36 mode.
2. "36 mode menu screen"
Press the [2. Timing adj.] key.
3. "Timing adjustment menu screen"
Press the [1. Drum clock adj.] key.
4. "Timing adjustment screen"
Press the arrow key until "Vertical magnification-
printer" appears in the message display area.
1-49
36 MODE
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button to