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

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

S003
Paper feed, paper transport section
Section
Unit
Part
JOB
CODE
After-work
NOTE
S No.
Part name
Ua No.
Unit name
Ub No.
Unit name
P No.
Part name
JOB No.
S 003
Paper feed, paper
transport
P 001
Paper width detector
ASS
P 002
Paper set lever
ASS
P 003
Paper pressure plate
ASS
P 004
Paper feed roller clutch spring
ASS
GRE
P 005
Paper feed roller
ASS
CLN
P 006
Paper feed clutch sleeve A
ASS
GRE
P 007
Paper feed clutch sleeve B
ASS
GRE
P 008
Paper feed clutch lever
ASS
P 009
Paper separator
ASS
CLN
 
S003/P003/GLN
S003/P002
S003/P009/CLN
S003/P009/
CLN
S003/P004/GRE
S003/P007/GRE
S003/P005/
CLN
S003/P006/
GRE
S003/P008
S003/P001
9 – 9
 S003/P001 
Paper width detector
 S003/P002 
Paper set lever
 S003/P003 
Paper pressure plate
(1)
Remove the rear cabinet  S001/P001  .
(2)
Remove the front upper cabinet  S001/P002  .
(3)
Remove the left cabinet  S001/P004  .
(4)
Pull and remove the paper width detector (actuator) (S003/
P001) on one side from the back of the rear cabinet.
(5)
Cut the binding band, remove the connector and the screw, and
remove the paper width detector (switch) (S003/P001).
*
Troubles caused by improper work
1) Right/left void areas defective
2) Image position detective
3) Transfer roller dirt
(Copy dirt)
(Paper jam)
(6)
Remove the right cabinet  S001/P003  .
(7)
Remove the screw, and remove the paper set lever (S003/
P002)and the paper pressure plate (S003/P003).
*
Troubles caused by improper work
1) Mis-feed
2) Paper jam
3) Paper skew
 S003/P004 
Paper feed roller clutch spring
 S003/P005 
Paper feed roller
 S003/P006 
Paper feed clutch sleeve A
 S003/P007 
Paper feed clutch sleeve B
 S003/P008 
Paper feed clutch lever
 S003/P009 
Paper separator
(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 MCU (PCU) PWB unit  S009/Ua002  .
S003/P001
S003/P001
S003/P003
S003/P002
9 – 10
(8)
Remove the power PWB unit  S009/Ua001  .
(9)
Remove the scanner unit  S004/Ua001  .
(10) Remove the screw, the gear, and the hook, and remove the
upper frame (Scanner (writing) unit) unit.
(11) Remove the counter-screw, and remove the paper feed roller
clutch spring (S003/P004), the paper feed roller (S003/P005),
the paper feed clutch sleeve A (S003/P006), and the paper feed
clutch sleeve B (S003/P007).
*
Cleaning
Use absolute alcohol to clean the paper feed roller.
*
Grease
Apply grease to the inside of the paper feed roller clutch spring,
and to the surface of the paper feed clutch sleeve A and the paper
feed clutch sleeve B.
*
Note for assembly
Be careful to the installing direction of each part. Be sure to set
the rear edge of the paper feed roller clutch spring to the notch
section of the paper feed clutch sleeves A/B.
*
Troubles caused by improper work
1) Mis-feed, paper jam
2) Paper skew
(12) Remove the No. mirror (f
θ
 mirror)  S005/Ua001/P004  .
(13) Remove the paper feed solenoid  S005/Ua001/P010  .
(14) Remove the paper feed clutch lever (S003/P008).
S003/P007/GRE
S003/P004/GRE
S003/P005/
CLN
S003/P006/GRE
S003/P008
9 – 11
(15) As shown in the figure below, use a screwdriver to remove the
paper separator (S003/P009).
*
Cleaning
Use absolute alcohol to clean the paper separator.
*
Troubles caused by improper work
1) Mis-feed, paper jam
2) Paper skew
S003/P009/CLN
S003/P009/CLN
S004
Scanner (Reading) section
Section
Unit
Part
JOB
CODE
After-work
NOTE
S No.
Part name
Ua No.
Unit name
Ub No.
Unit name
P No.
Part name
JOB No.
S 004
Scanner (reading)
Ua 001
Scanner (reading)
unit
ASS
ADJ M3
P 001
Scanner home position sensor
ASS
P 002
Scanner (copy) lamp drive
PWB
ASS
ADJ M10
Adjustment
is required
when replace
P 003
Scanner motor
ASS
P 004
Scanner motor gear
GRE
P 005
CCD unit (CCD/lens)
ASS
ADJ M4
CLN
P 006
Scanner rail
GRE
P 007
Scanner shaft
ASS
GRE
P 008
Scanner drive wire
ASS
ADJ M2/M3
Ub 001
Scanner unit
A
ASS
ADJ M3
P 001
Scanner (copy) lamp
ASS
ADJ M10
Adjustment
is required
when replace
CLN
P 002
No. 1 mirror
ASS
CLN
P 003
Scanner lamp light quantity
sensor
CLN
Ub 002
Scanner unit
B
ASS
P 001
No. 2 mirror
ASS
CLN
P 002
No. 3 mirror
ASS
CLN
9 – 12
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