MX-M364N, MX-565N (serv.man4). Service Manual (Revised January 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 45

MX-M565N  ADJUSTMENTS AND SETTINGS  4 – 15

2)

Copy the adjustment chart (created in step 1) to A3 (11" x 17")
paper in DSPF/RSPF duplex mode, and then check the image
for skews (Set in the DSPF/RSPF feed tray so that the mark
on the adjustment chart is at the edge). 

* Check with one of the following methods.

[Check Method 1]

[Check Method 2]

Check that the squareness of the main scanning direction
print line for the longitudinal direction of paper is within
1.0mm.

If the front surface copy image is as shown above and the
back surface copy is not as shown above, go to the step 3)
of "ADJ 5C DSPF skew adjustment (Back surface mode)".

If the above requirement is not met for the paper's front side,
then do step 3).

3)

Loosen the hinge screws and lower the two attachments.

4)

Open the DSPF/RSPF unit and loosen the screw.

5)

Adjust by turning the DSPF/RSPF skew adjusting screw on the
right side of the DSPF/RSPF rear frame.

 

This adjustment is needed in the following situations:

* The DSPF section has been disassembled.

* When replacing the DSPF unit.

* The DSPF unit generates skewed scanned images.

1)

Create an adjustment chart by printing in duplex mode the self-
print pattern (grid pattern) specified in Simulation 64-2.

SIM 64-2 set values

A = 1,

B = 1,

C = 254,

D = 255

Make sure that the print grid pattern is almost in parallel with
the paper edges, and apply position marks 'A', 'B', 'C' and 'D' to
the leading and trailing edges of the paper for both front and
back sides of the paper.

a

b

c

d

(Front side)

Make sure that the output satisfies the condition: |a-b| ± 1 mm

(Back side)

Make sure that the output satisfies the condition: |c-d| ± 1 mm

0 - 1.0mm

1

2

Paper pass direction