AR-651 (serv.man26). Improvement against wrong detection of CD1 and CD2 - Sharp Copying Equipment Technical Bulletin (repair manual)

ar-651 (serv.man26) technical bulletin
Model
AR-651 (serv.man26)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
282.46 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / Improvement against wrong detection of CD1 and CD2
File
ar-651-sm26.pdf
Date
Next: Sharp AR-651 (serv.man27) Technical Bulletin

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Sharp Electronics (UK) Ltd., Technical Services Group
ARE472
1. Model Name
AR651/810
2. Symptom
CD1 or CD2 error code is indicated.
3. Cause
The detection sensor for CD1 (Drum Cleaning Brush Motor Failure) and CD2 (recycling
Toner Transfer Motor Failure) does not detect correctly due to noise from the LGC PWB.
4. Description
Two capacitors have been added to the LGC PWB. (See following pages)
Note: The addition of the capacitor cannot be conducted to the earlier LGC PWB’s,
therefore the LGC PWB has to be replaced with a new PWB when this error occurs.
5. Action
Running change from March 2003.
6. Parts Action
Current parts
New parts
Ref.
No.
Model
name
Version P/G No.
Parts code
Parts code
Price
rank
Parts name
Effective
time
Inter-
change-
ability
Note
1
AR-651
0N6LA07044100 0N6LA14361100
DA
2
AR-810
52-14
0N6LA07044200 0N6LA14361200
DB
LGC PWB U
3
3
AR-651
AR-810
ALL
---
---
0ND0-04042001
AG
CAPACITOR
(C422, C423)
2003/03
Running
Change
---
<Interchange>
1. Interchangeable.
4. Not interchangeable.
2. Current type can be used in place of new type.
New type cannot be used in place of current type.
5. Interchangeable if replaced with same types of
related parts in use.
3. Current type cannot be used in place of new type.
New type can be used in place of current type.
6. Others.
Parts marked with "
" is important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
 Improvement against wrong detection of CD1 and CD2
TECHNICAL BULLETIN
Date:
23
rd
 December 2005
Model: 
AR651/810
Ref.:
035
Colour: 
White
Page:
1 of 2
Sharp Electronics (UK) Ltd., Technical Services Group
ARE472
7. Technical Tip
The current value for each motor is monitored and if this exceeds the standard value the
comparator is reversed and finally the flip flop IC senses the error CD1 or CD2. The flip
flop senses the CD1 or CD2 when any noise occurs, so to prevent the noise from
occurring the capacitor and the resistance has been inserted. In some cases the length of
pattern between the capacitor and the resistance was longer so did not reduce the noise
effectively, so a capacitor was added near the input area of the flip flop IC to prevent the
noise.
Page of 2
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AR-651 (serv.man26) Service Manuals

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AR-651 (serv.man12) Paper feeding section Service Manual 25 847.82 KB
AR-651 (serv.man22) Unpacking and installation Service Manual 11 1.2 MB
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AR-651 (serv.man13) Process section Service Manual 12 226.72 KB
AR-651 (serv.man11) Laser optical unit Service Manual 9 877.36 KB
AR-651 (serv.man10) Scanning section Service Manual 14 100.65 KB
AR-651 (serv.man9) Control panel Service Manual 12 199.17 KB
AR-651 (serv.man8) General operations Service Manual 14 97.83 KB
AR-651 (serv.man7) Copy process Service Manual 11 177.81 KB
AR-651 (serv.man6) Component layout functions Service Manual 30 1.25 MB
AR-651 (serv.man5) Front cover, precautions and contents Service Manual 5 80.44 KB
AR-651 (serv.man4) AR651 810-Service Handbook Service Manual 127 17.7 MB
AR-651 (serv.man3) AR651 810-Circuit Diagrams Service Manual 127 9.77 MB
AR-651 (serv.man23) Complete service manual Service Manual 127 14.46 MB
AR-651 (serv.man25) AR651 810 Operation Manuals User Guide / Operation Manual 127 3.81 MB
AR-651 (serv.man24) AR651 810-Parts Guide Parts Guide 127 22.77 MB
AR-651 (serv.man2) Specifications Specification 15 120.76 KB
AR-651 (serv.man52) The improvement for waving vertical lines in the rear side of the copy image Technical Bulletin 2 240.2 KB
AR-651 (serv.man44) Change of torque limiter. Technical Bulletin 1 91.88 KB
AR-651 (serv.man45) Parts change information regarding the lower frame and inversion open guide part 1. Technical Bulletin 2 155.27 KB
AR-651 (serv.man46) Measure to prevent breakage of one way bearing on cleaning web. Technical Bulletin 3 272.27 KB
AR-651 (serv.man47) Revision of illustration of 4 Lower frame section in the parts guide Technical Bulletin 2 353.24 KB
AR-651 (serv.man48) ROM upgrade ... (5) Technical Bulletin 10 153.94 KB
AR-651 (serv.man49) Change of parts to extend service life of paper feed section roller. Technical Bulletin 6 480.62 KB
AR-651 (serv.man50) The improvement for displaying tandem LCF check paper Technical Bulletin 6 1.64 MB
AR-651 (serv.man51) The improvement for image glossy lines due to grease of cleaning roller. Technical Bulletin 2 82.16 KB
AR-651 (serv.man32) Correction of SRAM parts code. Technical Bulletin 1 12.92 KB
AR-651 (serv.man53) Correction for loss of image 1 3 from the trail edge Technical Bulletin 1 12.31 KB
AR-651 (serv.man54) Countermeasure for background CD3 error near toner empty-toner recycle pipe blockage. Technical Bulletin 2 32.94 KB
AR-651 (serv.man55) Change of part code of PWB unit listed in the fusing drive section in the part guide 24 . Technical Bulletin 1 22.35 KB
AR-651 (serv.man56) Correction of parts codes of pulleys on the reversion drive unit listed in the part guide 13 . Technical Bulletin 1 14.8 KB
AR-651 (serv.man57) Improvement carried out to stop EB5 jam, due to over running of the paper stop position. Technical Bulletin 1 8.1 KB
AR-651 (serv.man58) ROM upgrading (4) Technical Bulletin 8 46.83 KB
AR-651 (serv.man59) Required attention when installing the OPC drum to the cleaner unit. Technical Bulletin 2 855.9 KB
AR-651 (serv.man42) Change in length of screw for the drum drive unit. Technical Bulletin 1 83.74 KB
AR-651 (serv.man27) 1 Change in sensors and screws to comply with RoHS, 2 One part code available for seal part, 3 Providing commonality of parts and discontinued use of arrow labels, 4 Change in cassette shafts to comply with RoHS, 5 Change in bushings. Technical Bulletin 4 172.22 KB
AR-651 (serv.man28) ROM upgrade 9, Sys ROM 013, UI ROM 012, Main ROM 16, Laser ROM 09, Scanner ROM 08, PFC ROM 08, RADF 03. Please contact TP Matrix for upgrade cards. Technical Bulletin 2 15.69 KB
AR-651 (serv.man29) Correction to parts code and illustration of upper cover rear and upper cover right. Technical Bulletin 1 17.52 KB
AR-651 (serv.man30) Discontinued use of coupling seal. Technical Bulletin 1 16.1 KB
AR-651 (serv.man31) Correction of SRAM parts code. Technical Bulletin 1 15.71 KB
AR-651 (serv.man33) Correction to parts guide. Technical Bulletin 2 59.02 KB
AR-651 (serv.man34) 1 Change in solenoids and automatic toner sensors (adaptation to RoHS). 2 Addition of sensor protection sheet. Technical Bulletin 3 50.87 KB
AR-651 (serv.man35) Change of TRU rail Technical Bulletin 1 23.14 KB
AR-651 (serv.man36) Correction to the parts code and illustration of the upper cover rear and upper cover right. Technical Bulletin 1 17.47 KB
AR-651 (serv.man37) ROM Upgrade...7 - Main ROM 15 Technical Bulletin 1 85.99 KB
AR-651 (serv.man38) Change in the manual feed tray shape and corrections to screw description. Technical Bulletin 2 165.15 KB
AR-651 (serv.man39) Lens cover design change. Technical Bulletin 1 80.18 KB
AR-651 (serv.man40) Modification of the tip shape of the drum pick off pawl. Technical Bulletin 1 67.67 KB
AR-651 (serv.man41) Change of the PWB unit in section 88 (RADF hinge) of the parts guide. Technical Bulletin 1 102.84 KB
AR-651 (serv.man43) Change of the PWB unit in the laser optical unit. Technical Bulletin 1 104.34 KB
AR-651 AR651 810 Handy Guide Handy Guide 60 2.33 MB
AR-651 (serv.man60) MSDS F-31171 Regulatory Data 4 404.69 KB
AR-651 (serv.man61) MSDS F-01171 Regulatory Data 4 425.15 KB

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