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

 S008/P001 
Gear
(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 fan motor unit  S010/P001  .
(5)
Remove the gear (S008/P001) as shown below. 
*
Grease up
When gears are disassembled or replaced, be sure to grease
again. 
*
Troubles caused by improper work
1) Noise generation 
2) Image deflection 
3) Banding
 S008/P002 
Main motor
(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  . 
(9)
Remove the gear (S008/P001).
(10) Remove the screw and the connector, and remove the main
motor (S008/P002). 
*
Grease up
When gears are disassembled or replaced, be sure to grease
again. 
*
Troubles caused by improper work
1) Noise generation 
2) Image deflection 
3) Banding
S008/P001/GRE
S008/P001/
GRE
S008/P001/GRE
S008/P002
S008/P001/GRE
S009
Electrical 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 009
Electrical
Ua 001
Power source,
PWB unit
ASS
P 001
Power switch
ASS
P 002
Fuse
ASS
Ua 002
MCU (PCU) PWB
unit
ASS
SET M1/M2
ADJ M1/
M4 
∼
 6
Adjustment
is required
when replace
Ua 003
ICU
PWB/Interface
PWB unit
ASS
Ua 004
High voltage/motor
drive PWB unit
ASS
9 – 29
S009/Ua001
S009/Ua003
S009/Ua004
S009/Ua002
S009/Ua001/P001
S009/Ua001/P002
 S009/Ua001 
Power PWB unit
 S009/Ua001/P001 
Electrical switch
 S009/Ua001/P002 
Fuse
(1) Remove the rear cabinet  S001/P001  . 
(2) Remove the front upper cabinet  S001/P002  . 
(3) Remove the left cabinet  S001/P004  . 
(4) Remove the screw and the connector. 
(5) Push the power PWB unit (S009/Ua001) from the inside to
remove. 
S009/Ua001
9 – 30
(6) Remove the screw, and remove the power PWB unit (S009/
Ua001) from the base plate. 
(7) Remove the power switch (S009/Ua001/P001) and the fuse
(S009/Ua001/P002) from the power PWB unit. 
*
After-work
1) Output voltage adjustment (When any part i the power unit is
replaced.)
*
Troubles caused by improper work
1) Power abnormality
 S009/Ua002 
MCU (PCU) PWB 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 fan motor unit  S010/P001  .
(5) Remove the screw and the connector. 
(6) Remove the connector, and push the MCU (PCU) PWB unit
(S009/Ua002) inside then remove. 
*
Troubles caused by improper work
1) Machine malfunction 
 S009/Ua003 
ICU PWB interface PWB unit
 S009/Ua004 
High voltage/motor drive PWB unit
(1) Remove the base bottom base plate  S001/P008  .
(2) Remove the screw and the connector, and remove the ICU PWB
interface PWB unit (S009/Ua003) and the high voltage/motor drive
PWB unit (S009/Ua004).
S009/Ua001
S009/Ua001/P001
S009/Ua001/
P002
S009/Ua002
9 – 31
*
Troubles caused by improper work
1) Printer malfunction 
2) Print defect
S009/Ua003
S009/Ua004
S010
Other 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 010
Others
P 001
Fan motor
ASS
 S010/P001 
Fan motor
(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 screw and he connector, and remove the fan motor
unit. 
(5) Remove the screw, and remove the fan motor (S010/P001).
*
Troubles caused by improper work
1) Image distortion 
S010/P001
9 – 32
Page of 32
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AL-840 (serv.man15) Section 13-Operation Panel PWB Service Manual / Parts Guide 1 23.73 KB
AL-840 (serv.man16) Section 12-MCU PWB Service Manual / Parts Guide 3 59.53 KB
AL-840 (serv.man17) Section 11-Packing Material Accessories Service Manual / Parts Guide 2 67.12 KB
AL-840 (serv.man18) Section 10- Carriage 2 unit Service Manual / Parts Guide 2 75.01 KB
AL-840 (serv.man19) Section 9- Carriage 1 unit Service Manual / Parts Guide 2 80.29 KB
AL-840 (serv.man20) Section 8- Scanner Unit Service Manual / Parts Guide 2 226.45 KB
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AL-840 (serv.man22) Section 6- Lower Frame Section No 6 Service Manual / Parts Guide 2 195.29 KB
AL-840 (serv.man23) Section 5-Lower Frame Section No 1 Service Manual / Parts Guide 2 199.12 KB
AL-840 (serv.man24) Section 4-Upper Frame Section Service Manual / Parts Guide 2 165.51 KB
AL-840 (serv.man25) Section 3- General Service Manual / Parts Guide 2 295.48 KB
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AL-840 PARTS SUCH AS SIDE DOOR DETECT SWITCH UNIT CHANGE IN SHAPE FOR PRODUCTIVITY IMPROVEMENT Service Manual / Specification 3 162.03 KB
AL-840 (serv.man47) Corrections To The Parts Guide. (WHITE) Service Manual / Technical Bulletin 1 74.16 KB
AL-840 (serv.man46) Parts Guide Correction. (WHITE) Service Manual / Technical Bulletin 1 24.05 KB
AL-840 (serv.man45) Addition And Change Of Parts. (WHITE) Service Manual / Technical Bulletin 2 48.34 KB
AL-840 (serv.man44) Change Of Reverse Gate. (WHITE) Service Manual / Technical Bulletin 1 22.93 KB
AL-840 (serv.man43) Addition Of A PU Roller Shaft Earth Spring. (WHITE) Service Manual / Technical Bulletin 1 157.29 KB
AL-840 (serv.man42) 1.Shape Change Of Release Lever. 2.PWB Change. (WHITE) Service Manual / Technical Bulletin 2 50.05 KB
AL-840 (serv.man41) 1.Shape Change Of Base Plate. 2.Prevention Of Jams At A Low Temperature. 3.Change Of Foam Material For OC Sheet. 4.Mirror Motor Change. (WHITE) Service Manual / Technical Bulletin 2 83.72 KB
AL-840 (serv.man40) Change Of The Bearing. (WHITE) Service Manual / Technical Bulletin 1 62.03 KB
AL-840 (serv.man39) 1.Change Of Fusing Spring R. 2.Change Of Operation Manual. (WHITE) Service Manual / Technical Bulletin 2 81.58 KB
AL-840 (serv.man38) 1.Parts Change For Better Productivity. 2.Addition Of Switch Sheet. 3.Addition Or Disuse Of The Parts For Satisfying EMI. 4.Improvement Of The Fax PWB. (WHITE) Service Manual / Technical Bulletin 3 174.08 KB
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AL-840 (serv.man35) Change of the screws. (WHITE) Service Manual / Technical Bulletin 1 164.44 KB
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AL-840 (serv.man33) Change of ROM. (WHITE) Service Manual / Technical Bulletin 1 69.71 KB
AL-840 (serv.man32) Part code for the CD-ROM. (WHITE) Service Manual / Technical Bulletin 1 66.25 KB
AL-840 (serv.man31) Countermeasure against oblique feed of the rear edge when copying printing Service Manual / Technical Bulletin 1 52.69 KB
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