DOWNLOAD Sharp AL-840 (serv.man8) Service Manual ↓ Size: 3.02 MB | Pages: 32 in PDF or view online for FREE

Model
AL-840 (serv.man8)
Pages
32
Size
3.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / AL800 840 Service Manual-Disassembly
File
al-840-sm8.pdf
Date
PREV: Sharp AL-840 (serv.man7) Service Manual

Sharp AL-840 (serv.man8) Service Manual ▷ View online

S004/Ua001/Ub002/P001/CLN
S004/Ua001/Ub002/P002/CLN
S004/Ua001/Ub001/
P001/CLN
S004/Ua001/Ub001/
P003/CLN
S004/Ua001/Ub001/
P002/CLN
S004/Ua001/P001
S004/Ua001/
P004/GRE
S004/Ua001
S004/Ua001/P008
S004/Ua001/
P002
S004/Ua001/
P006/GRE
S004/Ua001/
P007/GRE
S004/Ua001/
P006/GRE
S004/Ua001/
P005/CLN
S004/Ua001/P008
S004/Ua001/P008
9 – 13
 S004/Ua001 
Scanner unit
(1)
Remove the rear cabinet  S001/P001  .
(2)
Remove the front upper cabinet  S001/P002  .
(3)
Remove the right cabinet  S001/P003  .
(4)
Remove the left cabinet  S001/P004  .
(5)
Remove the document table glass  S001/P007  .
(6)
Remove the fan motor unit  S010/P001  .
(7)
Remove the screw, the connector, and the hook, and remove
the scanner unit (S004/Ua001).
 S004/Ua001/P001 
Scanner home positions sensor
 S004/Ua001/P002 
Scanner (copy) lamp drive PWB
 S004/Ua001/P003 
Scanner motor
 S004/Ua001/P004 
Scanner motor gear
 S004/Ua001/P005 
CCD unit
 S004/Ua001/P006 
Scanner rail
 S004/Ua001/P007 
Scanner shaft
 S004/Ua001/P008 
Scanner drive wire
(1)
Remove the rear cabinet  S001/P001  .
(2)
Remove the front upper cabinet  S001/P002  .
(3)
Remove the right cabinet  S001/P003  .
(4)
Remove the left cabinet  S001/P004  .
(5)
Remove the document table glass  S001/P007  .
(6)
Remove the fan motor unit  S010/P001  .
(7)
Remove the screw and remove the scanner shaft. 
(8)
Release the hook, cut the binding band, and remove the scan-
ner home position sensor (S004/Ua001/P001).
*
Troubles caused by improper work
1) L1-00 trouble
2) L3-00 trouble
(9)
Remove the screw and remove the dark box cover.
(10) Remove the screw and the connector, and remove the scanner
lamp drive PWB. (S004/Ua001/P002).
S004/Ua001
S004/Ua001/P001
S004/Ua001/P002
9 – 14
(11) Remove the screw, the spring, and the belt, and remove the
scanner motor unit.
(12) Remove the screw and remove the scanner motor (S004/
Ua001/P003).
(13) Remove the E-ring, and remove the scanner motor gear (S004/
Ua001/P004).
*
Grease
Apply grease to #1 position.
*
Troubles caused by improper work
1) L1-00 trouble
2) L3-00 trouble
3)  Image deflection
(14) Remove the screw and the connector, and remove the CCD unit
(S004/Ua001/P005).
(Never remove the other screws than the two screws shown
below.)
*
Cleaning
Remove the protection cover, and clean the CCD and the lens
with absolute alcohol.
*
Troubles caused by improper work
1) E7-04 trouble
2) E7-05 trouble
3) E7-12 trouble
4) Copy image defect
(Improper focusing)
(Distortion)
(Streaks in the sub scanning direction)
S004/Ua001/P003
S004/Ua001/P003
1
S004/Ua001/P004/GRE
S004/Ua001/P005
9 – 15
(15) Remove the screw, and remove the scanner shaft (S004/Ua001/
P007).
*
Grease
Apply grease to the scanner rail (S004/Ua001/P006).
*
Troubles caused by improper work
1) Copy image defect 
(Image deflection)
(16) Remove the scanner drive wire (S004/Ua001/P008).
*
Assembly procedure
1) Hang the scanner drive wire fixing metal on the scanner unit
hook.
2) Pass the wire through the outside grove of the double pulley of
the scanner unit B.
3) Hold the winding pulley groove upside, wind the wire 11 turns.
Insert the 9th turn of wire into the winding pulley groove and fix
it with the screw.
4) Wind the wire over the pulley through under the scanner unit
B.
5) Pass the wire through the inside groove of the double pulley of
the scanner unit B.
6) Hang the spring hook on the scanner unit.
*
Note for assembly
The wire on the front frame side is different from that on the rear
frame side. Be careful not to mistake the wire colors.
*
Troubles caused by improper work
1) L1-00 trouble
2) L3-00 trouble
3) Copy image defect
(Distortion)
(Image deflection)
 S004/Ua001/Ub001 
Scanner unit A
 S004/Ua001/Ub001/P001 
Scanner lamp
 S004/Ua001/Ub001/P002 
No. 1 mirror
 S004/Ua001/Ub001/P003 
Scanner lamp light
quantity sensor
(1)
Remove the rear cabinet  S001/P001  .
(2)
Remove the front upper cabinet  S001/P002  .
(3)
Remove the right cabinet  S001/P003  .
(4)
Remove the left cabinet  S001/P004  .
(5)
Remove the document table glass  S001/P007  .
(6)
Remove the fan motor unit.  S010/P001  .
(7)
Remove the lamp cover, lift the scanner lamp diagonally, and
remove the scanner lamp (S004/Ua001/Ub001/P001).
*
Cleaning
Use absolute alcohol to clean the scanner lamp.
*
Troubles caused by improper work
1) Copy image defect
(Streaks in the sub scanning direction)
(Uneven density)
S004/Ua001/
P006/GRE
S004/Ua001/
P007/GRE
S004/Ua001/
P006/GRE
P008
S004/Ub001/P001/CLN
9 – 16
Page of 32
Display

Click on the first or last page to see other AL-840 (serv.man8) service manuals if exist.

RANDOM: