Read Sharp AR-M351N / AR-M451N (serv.man4) Service Manual online
[7]
MAINTENANCE AND DETAILS OF EACH SECTION
[Maintenance System Table] . . . . . . . . . . . . . . . . . . . . . . .7-1
1.
Engine section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
2.
Scanner / DSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
3.
Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
[DETAILS OF EACH SECTION] . . . . . . . . . . . . . . . . . . . .7-4
1.
Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
[OPC drum section] . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
[Transfer section] . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
[Developing section] . . . . . . . . . . . . . . . . . . . . . . . . .7-16
2.
Fusing section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-21
3.
Paper feed section . . . . . . . . . . . . . . . . . . . . . . . . . .7-26
4.
Transport section/Paper exit reverse section . . . . . .7-33
5.
Laser scanner section. . . . . . . . . . . . . . . . . . . . . . . .7-43
6.
Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-46
7.
DSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-54
8.
Operation panel section . . . . . . . . . . . . . . . . . . . . . .7-62
9.
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-66
10. Drive section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-67
11. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-69
12. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-72
13. Fan motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-74
[8]
ADJUSTMENTS
1.
Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
A. Doctor gap adjustment . . . . . . . . . . . . . . . . . . . . .8-1
B. MG roller main pole position adjustment . . . . . . . .8-1
C. High voltage output adjustment. . . . . . . . . . . . . . .8-2
2.
Image check, adjustment . . . . . . . . . . . . . . . . . . . . . .8-3
A. Adjustments on the engine side . . . . . . . . . . . . . .8-3
B. Adjustment on the scanner side . . . . . . . . . . . . . .8-6
3.
Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
A. OC scan distortion adjustment
(MB-B rail height adjustment) . . . . . . . . . . . . . . .8-10
B. Vertical image distortion balance adjustment
(Copy lamp unit installing
position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11
position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11
C. Vertical image distortion balance adjustment
(No. 2/3 mirror base unit installing
and position adjustment) . . . . . . . . . . . . . . . . . . .8-11
and position adjustment) . . . . . . . . . . . . . . . . . . .8-11
D. Vertical (sub scanning direction) distortion
adjustment [Winding pulley position
adjustment] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
adjustment] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
E. Height adjustment of original detection
light emitting unit . . . . . . . . . . . . . . . . . . . . . . . . .8-12
F. Original size detection photo sensor check . . . . .8-12
G. Original size detection photo sensor
adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12
H. Image density adjustment . . . . . . . . . . . . . . . . . .8-13
I.
DSPF width detection adjustment . . . . . . . . . . . .8-17
[9]
SIMULATION
1.
Outline and purpose . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
2.
Code-type simulation. . . . . . . . . . . . . . . . . . . . . . . . . 9-1
A. Operating procedures and operations . . . . . . . . . 9-1
B. Simulation list . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
C. Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
3.
Other related items . . . . . . . . . . . . . . . . . . . . . . . . . 9-87
[10] MACHINE OPERATION
1.
Acceptable originals . . . . . . . . . . . . . . . . . . . . . . . . 10-1
A. Size and weight of acceptable originals . . . . . . . 10-1
B. Total number of originals that can be set
in the document feeder tray . . . . . . . . . . . . . . . . 10-1
2.
Standard original placement orientations . . . . . . . . 10-1
3.
Automatic copy image rotation -
rotation copying . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
rotation copying . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
4.
Specifications of paper trays . . . . . . . . . . . . . . . . . . 10-2
A. Applicable plain paper . . . . . . . . . . . . . . . . . . . . 10-2
B. Applicable special paper . . . . . . . . . . . . . . . . . . 10-3
5.
Printing onto envelopes . . . . . . . . . . . . . . . . . . . . . . 10-3
A. Fusing unit pressure adjusting levers . . . . . . . . 10-3
[11] TROUBLE CODES
1.
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
2.
Trouble codes list . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
3.
Details of trouble codes . . . . . . . . . . . . . . . . . . . . . . 11-3
4.
Other related items . . . . . . . . . . . . . . . . . . . . . . . . 11-14
[12] ROM VERSION-UP METHOD
1.
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
2.
Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
3.
Flash ROM update procedures . . . . . . . . . . . . . . . . 12-1
A. Preliminary arrangement . . . . . . . . . . . . . . . . . . 12-1
B. Update procedure 1 (Writing with each ROM
inserted to the specified slot) . . . . . . . . . . . . . . . 12-2
C. Update procedures 2 (Writing to each ROM
by use of CN6 of the controller PWB) . . . . . . . . 12-2
D. In case of “Result: NG” . . . . . . . . . . . . . . . . . . . 12-3
E. Turning off the power during update . . . . . . . . . 12-3
F. Update window display in normal booting . . . . . 12-3
G. Update process flow . . . . . . . . . . . . . . . . . . . . . 12-3
[13] ELECTRICAL SECTION
1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
2.
Actual wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
3.
Signal name list . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-19
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