AR-C260P (serv.man38). Countermeasure Against Black Streaks Voids on copies. — Sharp Copying Equipment Technical Bulletin (repair manual)

Model
AR-C260P (serv.man38)
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Technical Bulletin
Brand
Device
Copying Equipment / Countermeasure Against Black Streaks Voids on copies.
File
ar-c260p-sm38.pdf
Date

View Sharp AR-C260P (serv.man38) Technical Bulletin online

 
 
CCE157 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Model: 
AR-C260(M), AR-C260P 
 
   Symptom: 
In certain environmental conditions (low temperature and humidity), the following 
symptoms may be experienced:- 
 
1. Black streaks may appear on the copy image (feed direction) 
 
 
 
 
2. White streaks may appear (Front to Rear), especially within solid black areas. 
 
 
 
3. Voids may appear on the copy image (in all colours) due to an “LED lock up”. 
 
 
Description: 
The following changes have been made to the Black Toner Cartridge:- 
 
1.  The removal of the secondary doctor blade from the Black Toner Cartridge – the 
electrical charge on the toner is reduced (less toner adhesion). 
 
 
 
 
    Note: 
If the symptom occurs on previous production toner cartridges, remove the 
Second blade from the cartridge by following the procedure within this 
Technical Bulletin. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cont’d 
COUNTERMEASURE AGAINST BLACK STREAKS AND VOIDS 
ON COPIES DUE TO THE BLACK TONER CARTRIDGE 
TECHNICAL BULLETIN 
Date:  
29 March 2004 
Model:  
AR-C260P 
Ref.:  
001 
Colour:  
White 
Page:  
1 of 3 
 
 
CCE157 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
2. The Toner Cartridge packaging has been changed so that the protection material does not contact directly 
    with the DV roller. 
 
3. Of the 3 metal screws fixing the DC-PLT-U plate onto the toner cartridge, the front screw has changed to 
    a plastic one (All Toner Cartridges). 
 
 
Action:  
From the middle of January 2004 production.  
 
 
How to Identify The New Type Toner Cartridge 
 
As indicated below, a blue/yellow circle with a black dot label has been added to the long and short lateral 
faces of the exterior packaging (2 circles for each box/package).  
 
 
 
 
 
 
 
 
 
 
The identification label on the Aluminium Bag and Toner Cartridge will also display the production date:- 
 
 
 
 
 
 
 
 
 
 
 
 
 
Procedure to Remove the Secondary Blade 
 
1. Unfasten 2 black screws to remove DC-COV. (Figure1) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cont’d
 
 
CCE157 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
2. Unfasten 2 screws (M3*8) on both sides, and then unfasten 5 screws (M3*6). (Figure 2) 
 
 
 
3. By removing DC-PLT-U, the 2nd Blade will be unfixed and can be removed. 
 
 
 
 
4. Put back the DC-PLT-U to the original location, and then fasten the screws (M3*6) in order of number 
    (1 to 5) – starting from the left. 
 
    Note:- Fastening screw torque=0.4±0.02N   m 
 
    At this point, make sure that the bosses on the plate are properly through the holes of DC-PLT-U. 
 
 
 
 
 
5. Fasten the 2 screws (M3*8) on both sides. 
 
    Note: Fastening screw torque=0.7±0.02N   m 
 
 
6. Hook the 4 cover pawls of the DC-COV, and then fasten it with 2 black screws.  
 
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Here you can view online or download Sharp AR-C260P (serv.man38) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Sharp AR-C260P (serv.man38) Copying Equipment. Information contained in Sharp AR-C260P (serv.man38) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).