Paper Centering Adjustment - Konica Minolta DF-606 Service Manual

Field Service Ver2.0 Aug.2005
4.4

Paper centering adjustment

In the prints while paper is being fed from LU, conduct this adjustment when the center of image slips off from
the center of paper. For centering, an automatic adjustment is made in the image processing unit. However,
when there occurs a centering outside the range of automatic adjustment (±3 mm or more), conduct this adjust-
ment.
A. Procedure
[3]
[4]
LU-403
[2]
[1]
[5]
[6]
[9]
[8]
[7]
LU-404
[2]
[1]
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4. MECHANICAL ADJUSTMENT
1. Disable for change the software DIPSW 12-3
"Printer centering adjustment" (data = 1). (See
"10.9.1 Software DIPSW setting" in Field Service
for the Main Body.)
2. Make a print of the test pattern No. 16 and check
the amount of centering with no adjustment
made.
3. Set about 100 sheets of paper in LU (the amount
that does not result in the deformation of the
guide plate).
4. Close the upper door. And after checking from the
operating sound of the paper lift motor that the
paper lift plate has gone up fully, turn OFF the
main power switch (SW1) and the power switch
(SW2) of the main body.
5. Remove the right cover. (See "3.2.2 Removing
and reinstalling the right cover.")
6. Open the front door and loosen the screw [2] of
the paper width adjustment section [1].
7. Open the upper door and loosen 2 screws [4] of
the guide plate /Fr [3] and 2 screws [6] of the
guide plate /Rr [5].
8. Loosen 2 screws [8] of the center positioning
bracket [7].
9. Using the marking-off lines [9] as a guide, slide the
center positioning bracket [7] and tighten up the
screw [8].
10. Press the guide plates /Fr [3] and /Rr [5] against
the paper, tighten up screws [2], [4] and [6], 5 in all.
Note
• When pressing the guide plate against the
paper, be careful not to apply too much force.
Otherwise, the paper feed can be negatively
affected, thus resulting in a jam.
11. Reinstall the above parts following the removal
steps in reverse.
Note
• After completion of installation, be sure to
make a print and check to see if the amount
of centering is inside the specified value.
• After checking that it is inside the specified
value, be sure to enable the software
DIPSW12-3 (data = 0).
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