Read Sharp AL-840 (serv.man8) Service Manual online
(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.
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.
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)
(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
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).
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)
(Uneven density)
S004/Ua001/
P006/GRE
P006/GRE
S004/Ua001/
P007/GRE
P007/GRE
S004/Ua001/
P006/GRE
P006/GRE
P008
S004/Ub001/P001/CLN
9 – 16
Click on the first or last page to see other AL-840 (serv.man8) service manuals if exist.