DOWNLOAD Sharp AR-810 (serv.man56) Service Manual ↓ Size: 32.94 KB | Pages: 2 in PDF or view online for FREE

Model
AR-810 (serv.man56)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
32.94 KB
Type
PDF
Document
Service Manual / Technical Bulletin
Brand
Device
Copying Equipment / Countermeasure for background CD3 error near toner empty-toner recycle pipe blockage.
File
ar-810-sm56.pdf
Date

Sharp AR-810 (serv.man56) Service Manual / Technical Bulletin ▷ View online

ARE581
Sharp Electronics (UK) Ltd., Technical Services Group
Model Name
AR-651/810
Symptom:
Depending on the paper, the fluidity of the recycle toner gets worse due to paper dust,
hich may result in background or CD3 error (toner clog) near the toner end on rare
occasions.
For the machine caused this problem, perform the following troubleshooting:
Trouble-shooting
2. Adjust the toner supply control
Change the tolerance of 08-455(the amount of new toner supply) and 08-456(the amount
of recycle toner supply) as followings.
08-455 = 4 (default : 0) ....... Decrease the amount of new toner supply to the Developer
unit.
08-456 = 1 (default : 0) ....... Increase the amount of recycle toner supply to the Developer
unit.
Increasing the amount of recycle toner supply decreases the remaining amount of toner in
the recycle toner hopper, therefore the level against background before empty is
improved.  However, note that the background level in normal copy may be deteriorated a
little on rare occasions depends on the type of paper due to that the amount of recycle
toner supply is always large.
* To perform this adjustment, the main ROM version should be Ver.11 or above.
Since the below versions have different tolerance, make sure of upgrading the ROM
before changing the tolerance.
The current service handbook shows the tolerance up to Ver.10, so that see the tolerance
at Ver.11 or above as below.
COUNTERMEASURE FOR BACKGROUND/CD3 ERROR NEAR
TONER EMPTY-TONER RECYCLE PIPE BLOCKAGE
TECHNICAL BULLETIN
Date:
18 March 2004
Model: AR651 
 
AR810
Ref.:
006
Colour: White
Page:
1 of 2
ARE581
Sharp Electronics (UK) Ltd., Technical Services Group
Reference (Difference between up to Ver.10 and Ver.11 or above)
Up to Ver.10
Setting
mode(08)
Default
Tolerance
Description
455
0
0^2
Adjust the amount of new toner supply to the
Developer unit (the driving time of the new toner
supply motor)
0:Standard 1:1.3 times of the standard 2:0.7times
of the standard
456
0
0^2
Adjust the amount of recycle toner supply to the
Developer unit (the driving time of the recycle
toner supply motor)
0:Standard 1:1.5 times of the standard 2:0.5times
of the standard
Ver. 11 or above
Setting
mode(08)
Default
Tolerance
Description
455
0
0^8
Adjust the amount of new toner supply to the
Developer unit (the driving time of the new toner
supply motor)
Increase <-- amount of toner supply --> Decrease
 6 
 7
 4 
 5 
 0 
 1 
 3 
 2
456
0
0^8
Adjust the amount of recycle toner supply to the
Developer unit (the driving time of the recycle toner
supply motor)
Increase <-- amount of toner supply --> Decrease
 2 
 4 
 3 
 5 
 1 
 6 
 7 
 8
For 08-455, 8 is the least supply and 2 is the most supply.
For 08-456, 0 is the least supply and 8 is the most supply.
Additional explanation:
(1) If you experience the background once, replacing the developer in addition to above
countermeasure is more effective.
(2) Performing the periodical cleaning (every 3months or every 100k) as above 1 in addition
to above countermeasure is more effective.
(3) The conventional control 08-455=0 + 08-456=0 is exactly same as the new control 08-
455=0 + 08-456=0.
(No change has been performed.)
Also, the new control that almost implement the conventional control 08-455=1 (1.3 times of
the standard) + 08-456=2 (0.5 times of the standard) is 08-455=2 + 08-456=0.
However, this control is temporary, so that if the problem occurs, set the above value (08-
455=4 + 08-456=1) after cleaning as the permanent measure.
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  • Here you can View online or download the Service Manual / Technical Bulletin for the Sharp AR-810 (serv.man56) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp AR-810 (serv.man56) Copying Equipment. Information contained in Sharp AR-810 (serv.man56) Service Manual / Technical Bulletin (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.