MX-M850 (serv.man36). Section 6 Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 16

MX-M1100  ADJUSTMENTS  6 – 16

When the right side inclines to the left:
Lower the level of the left side of the rear frame scanner rail.
(When viewed from the rear frame side)

2)

Make a copy of the distortion check test chart, and check for
any distortion on the right side.
Repeat the above procedures until the distortion on the right
side is minimized.
Note:
The right side distortion adjustment and the left side distortion
adjustment affect each other. When, therefore, one of the
adjustments is performed, be sure to check the other distortion
and repeat the adjustment procedures until the both distortions
are minimized.

 

 

This adjustment is required in the following cases:
* When the DSPF section is disassembled.
* The DSPF unit has been replaced.
1)

Check the contact pressures between the four projections (2
on the front side and 2 on the rear side of the DSPF unit) and
the cover top and the glass surface of the document table of
the machine.

(Check procedure)
Insert paper between the projections of the DSPF unit and the
cover top and the glass surface of the document table, and pull
out the paper slowly. Feel and check to confirm that the resis-
tances at the four contacts are the same level.
Allowable range: Front frame side 0mm
                         Rear frame side 0 - 1mm
* Check the contact pressure with the unit from which the OC

mat is removed. 

If not, perform the following procedure. 

2)

Turn the DSPF unit level adjustment screw on the rear side of
the DSPF unit to adjust the horizontal level (front and rear, left
and right). 

Repeat the above procedures until a satisfactory result is obtained.

When the front frame side 
is higher and the rear 
frame side is lower

Turn the DSPF rear frame height adjustment 
screws R and L clockwise.

When the front frame side 
is lower and the rear frame 
side is higher

Turn the DSPF rear frame height adjustment 
screws R and L counterclockwise.

When the right side is 
higher and the left side is 
lower

Turn the DSPF rear frame height adjustment 
screw R counterclockwise.

When the right side is 
lower and the left side is 
higher

Turn the DSPF rear frame height adjustment 
screw L counterclockwise.