Read Sharp MX-M905 (serv.man2) Service Manual online
MX-M905 ADJUSTMENTS 5 – 84
4)
Tighten the screw, and fix the fusing paper guide.
5)
Install the fusing unit to the main unit, and check the adjust-
ment result in the copy mode.
ment result in the copy mode.
* There is no jam.
* The paper lead edge is not folded.
* There is no skew.
* There is no blur of improper focusing on the lead edge and
the rear edge of an image on paper.
* There is no wrinkle on paper.
ADJ 20
Decurler roller adjustment
This adjustment must be performed in the following cases:
* If there occurred a paper jam (POIND_N) with winding around
the Drum when duplex copying.
The ADU section is provided with the decurler (curl correction)
function. The curl correction amount can be adjusted by rotating
the dial.
function. The curl correction amount can be adjusted by rotating
the dial.
The adjustment can be made in 9 steps (Default value : 4). The
normally value is 4. The greater the value is from 4, the greater the
correction is.
normally value is 4. The greater the value is from 4, the greater the
correction is.
NOTE: Perform a fine adjustment depending on the paper kind
and the use environment.
The direction of being pointed by the dial which is surrounded with
a
a
is the curl correction amount.
ADJ 21
DSPF CCD calibration
21-A
DSPF shading adjustment
This adjustment is required in the following cases:
* When the DSPF CCD unit is replaced.
* When a U2 trouble occurs.
* When the DSPF control PWB is replaced.
(1) Note before adjustment
1)
Check to insure that there is no dirt or dust on the DSPF scan-
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
ning glass, the mirror, and the lens surface. (If there is, clean it
with alcohol.)
2)
Open the DSPF document scan section, and insert the white
reference jig (PSHEP5859FCZZ). Then, close the DSPF docu-
ment scan section, and close the DSPF.
reference jig (PSHEP5859FCZZ). Then, close the DSPF docu-
ment scan section, and close the DSPF.
3)
Enter the SIM 63-2 mode.
4)
Select "DSPF SHADING".
5)
Press [EXECUTE] key. (The shading adjustment process is
started.)
started.)
* During shading adjustment, "SHADING EXECUTING..." is
displayed.
* When [EXECUTE] key is pressed during shading adjust-
ment, the operation is interrupted.
* When shading adjustment is completed normally, [EXE-
CUTE] key returns to the normal display and "COMPLETE"
is displayed.
is displayed.
Insert from the notch of the white
reference jig, and set.
reference jig, and set.
White reference jig set reference
Insert so that the rear edge of the white
reference jig is in parallel with the transport roller
(as shown with the dotted line in the figure).
reference jig is in parallel with the transport roller
(as shown with the dotted line in the figure).
Insert so that the rear edge of the white reference
jig is fit with the upper transport PG edge.
jig is fit with the upper transport PG edge.
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