MX-M364N, MX-565N (serv.man4). Service Manual (Revised January 2016). - Sharp Copying Equipment Service Manual (repair manual). Page 42

MX-M565N  ADJUSTMENTS AND SETTINGS  4 – 12

3)

Loosen the fixing screw of the pulley angle on the front frame
side of the scanner unit B.

4)

Adjust the position of the pulley angle on the front frame side
of the scanner unit B so that it is in contact with two stoppers
on the front and the rear frames simultaneously.

5)

Fix the pulley angle on the front frame side of the scanner unit
B. If a satisfactory result is not obtained from the above proce-
dures, perform the following procedures. Loosen the fixing
screw of the scanner unit drive pulley which is not in contact.

Without moving the scanner unit drive shaft, turn the scanner
unit drive pulley manually and adjust so that the scanner unit B
is in contact with both stoppers on the front frame and the rear
frame simultaneously. (Change the relative position of the
scanner unit drive pulley and the drive shaft.) Fix the scanner
unit drive pulley fixing screw.

6)

With the scanner unit B in contact with both stoppers, fit the
edge of the scanner unit A with the right edge of the frame, and
fix the scanner unit A with the fixing screw.

 

1)

Make a test chart on A3 (11" x 17") paper as shown below.
(Draw a rectangular with four right angles.)

2)

Set the test chart prepared in the procedure 1) on the docu-
ment table. (Shift the test chart edge 30mm from the reference
position as shown below.) With the document cover open,
make a copy on A3 (11" x 17") paper.

3)

Check for distortion in the sub scanning direction.

If La = Lb, there is no distortion.

If there is any distortion in the sub scanning direction, perform
the following procedures.

4)

Loosen either one of the fixing screws of the scanner unit drive
pulley. (Either one on the front frame or on the rear frame will
do.)

L

L

L = 10mm

L

L

La

Lb