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KONICA MINOLTA 8050/CF5001/C500/8150 Field Service Ver.3.0 Dec. 2004
(1) Printer vertical magnification adjustment
Adjust the vertical magnification of the printer sys-
tem.
This adjustment changes the line speed of the reg-
istration roller, drum, transfer belt and the fixing.
This adjustment can be shown in the key operator
mode by setting the DIPSW12-1 to 1.
Note:
• For the printer vertical magnification adjust-
ment, the following two methods are avail-
able. Be sure to take care when an adjustment
is made.
(1) Printer vertical magnification adjustment
Used when the vertical magnification has
been changed due to the wear of the regis-
tration roller or the heat shrinkage of
paper.
(2) Belt line speed adjustment
Used when the vertical magnification has
been changed due to causes other than
the above.
• In default, the printer vertical magnification
adjustment on side 2 is not reflected to the
image. When adjusting the vertical magnifica-
tion on side 2, use the memory switch in the
key operator mode to turn ON side 2 drum
clock adjustment mode. However, since the
line speed is switched for each image creation
process on side 1 and side 2, the print speed
is reduced to about 1/4.
a.
Procedure
1. Enter the 36 mode.
2. "36 mode menu screen"
Press the [2. Image adjustment] key.
3. "Image adjustment menu screen"
Press the [1. Magnification adjustment] key.
4. "Magnification adjustment menu screen"
Press the [1. Printer vertical mag. adj.] key.
5. "Printer vertical mag. adjustment screen"
Press the [COPY SCREEN] key.
6. Select the A3 or 11 x 17 paper and press the
START button to output a test pattern (No. 16).
7. Measure the vertical magnification with a scale.
• Standard value: 0.5% or less (when in life-size)
Within ± 1 mm against 205.7 mm
8. When the value is not within the standard,
press the C button while pressing the P button.
9. "Printer
vertical
screen"
For the printer vertical magnification adjustment, the
following items are provided. Press the [NEXT
ADJUSTMENT] key or [PREVIOUS ADJUSTMENT]
key to select an item you want to adjust.
• "Printer vertical mag. adjustment": Side 1 and
side 2 are adjusted at the same time.
Setting range: -300 to +300, 1 step = 0.01%
• "Tray 1 offset (ADU)": Tray 1 side 2 adjustment
Setting range: -100 to +100, 1 step = 0.01%
• "Tray 2 offset (ADU)": Tray 2 side 2 adjustment
Setting range: -100 to +100, 1 step = 0.01%
• "Tray 3 offset (ADU)": Tray 3 side 2 adjustment
Setting range: -100 to +100, 1 step = 0.01%
• "Bypass tray offset (ADU)": Bypass tray side 2
adjustment
Setting range: -100 to +100, 1 step = 0.01%
• "Back tray 4 offset": LCT side 2 adjustment
Setting range: -100 to +100, 1 step = 0.01%
10. Enter a numeric value through the numeric
keys and press the [SET] key.
11. Repeat steps 5 to 10 until the standard value
can be obtained.
1-63
36 MODE
205.7 1
8050fs1006
magnification
adjustment
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