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2000 RICOH Corporation. All rights reserved.
CONTROL NO. 054ABW
TECHNICAL SERVICE BULLETIN
TECHNICAL SERVICE BULLETIN
TECHNICAL SERVICE BULLETIN
TECHNICAL SERVICE BULLETIN
BULLETIN NUMBER:
BULLETIN NUMBER:
BULLETIN NUMBER:
BULLETIN NUMBER:
A230/A231/A232 - 057
A230/A231/A232 - 057
A230/A231/A232 - 057
A230/A231/A232 - 057
09/13/2000
09/13/2000
09/13/2000
09/13/2000
APPLICABLE MODEL
APPLICABLE MODEL
APPLICABLE MODEL
APPLICABLE MODEL::::
GESTETNER – 3235S/3535/3245
GESTETNER – 3235S/3535/3245
GESTETNER – 3235S/3535/3245
GESTETNER – 3235S/3535/3245
RICOH – AFICIO 340/350/450
RICOH – AFICIO 340/350/450
RICOH – AFICIO 340/350/450
RICOH – AFICIO 340/350/450
SAVIN – 9935D/9935DP/9945DP
SAVIN – 9935D/9935DP/9945DP
SAVIN – 9935D/9935DP/9945DP
SAVIN – 9935D/9935DP/9945DP
SUBJECT:
TONER BAND ON REAR SIDE OF DRUM
SYMPTOM:
A toner band develops on the rear side of the Drum outside of the image area. This toner band causes
the Transfer Belt Assembly to over fill on the rear side and leak toner into the registration and vertical feed
areas.
CAUSE:
The edge of the Development Unit Seal contacts the Drum surface, causing Drum wear.
Occurrence process:
1. The edge of the Development Unit Seal contacts the Drum, causing wear on the Drum surface. As a
result, extra toner sticks to this part of the Drum surface.
2. This toner then accumulates on the Charge Roller Cleaning Pad.
3. The toner on the Cleaning Pad then sticks to the Charge Roller, expanding in width and forming a thin film
on the Roller surface.
4. The electric potential decreases in the area on the Charge Roller surface where the toner film has formed.
A “band” of toner is then transferred to the Drum.
5. This toner band layer is then transferred to the surface of the Transfer Belt. This toner gradually builds up
on the Belt surface, and the Transfer Belt Unit is unable to properly remove it for collection. Eventually,
the accumulated toner falls off the Belt surface and drops toward the rear section of the machine.
COUNTERMEASURE:
The thickness of the Development Unit Seal has been reduced from 0.2 to 0.1mm. In addition, the Seal itself
has been made softer/more flexible. This modification will prevent the Seal from contacting the Drum and
causing wear on the Drum’s surface. See illustration below for placement.
NOTE:
Only the suffix of the part number has changed. The part number remains unchanged.
Continued…
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Summary of Contents for A230
Page 1: ...SERVICE MANUAL 000861MIU A230 A231 A232 RICOH GROUP COMPANIES ...
Page 2: ...SERVICE MANUAL A230 A231 A232 RICOH GROUP COMPANIES ...
Page 3: ...A230 A231 A232 SERVICE MANUAL 000861MIU ...
Page 4: ......
Page 6: ......
Page 8: ......
Page 10: ......
Page 35: ......
Page 39: ......
Page 40: ...OVERALL MACHINE INFORMATION ...
Page 41: ......
Page 62: ...DETAILED SECTION DESCRIPTIONS ...
Page 63: ......
Page 139: ......
Page 140: ...INSTALLATION ...
Page 141: ......
Page 208: ...SERVICE TABLES ...
Page 209: ......
Page 280: ...PREVENTIVE MAINTENANCE ...
Page 281: ......
Page 285: ...REPLACEMENT AND ADJUSTMENT ...
Page 286: ......
Page 343: ...TROUBLESHOOTING ...
Page 344: ......
Page 383: ...PAPER TRAY UNIT A682 ...
Page 384: ......
Page 403: ...LARGE CAPACITY TRAY A683 ...
Page 404: ......
Page 419: ...BY PASS A689 ...
Page 420: ......
Page 433: ... 1 BIN TRAY A684 ...
Page 434: ......
Page 442: ......
Page 443: ...AUTO DOCUMENT FEEDER A680 ...
Page 444: ......
Page 468: ...ROM HISTORY 12 22 A230 A231 A232 SM B Rev 09 2000 ...
Page 477: ...INTERCHANGE UNIT A690 ...
Page 478: ......
Page 484: ......
Page 485: ... DUPLEX A687 ...
Page 486: ......
Page 498: ......
Page 499: ...BRIDGE UNIT A688 ...
Page 500: ......
Page 507: ...1 000 SHEET FINISHER A681 ...
Page 508: ......
Page 534: ......
Page 535: ...3 000 SHEET FINISHER A697 ...
Page 536: ......
Page 571: ...SwapBox and SwapFTL Installation Manual ...
Page 572: ......
Page 583: ...SwapFTL Binary Utility Operation Manual ...
Page 584: ......
Page 595: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Page 596: ......
Page 597: ...NINE TRAY MAILBOX AND BRIDGE UNIT G909 G912 ...
Page 598: ......
Page 627: ...SCANNER KIT A695 ...
Page 628: ......
Page 658: ......
Page 660: ......
Page 672: ......
Page 710: ......
Page 817: ......
Page 831: ......
Page 853: ...TECHNICAL SERVICE BULLETINS ...
Page 857: ...ISDN Unit A816 ...
Page 858: ......
Page 864: ......
Page 880: ......
Page 900: ......
Page 904: ......
Page 908: ......
Page 909: ...TECHNICAL SERVICE BULLETINS ...
Page 922: ...SwapFTL and SwapFTL Installation Manual ...
Page 933: ...SwapFTL Binary Utility Operation Manual ...
Page 944: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Page 1074: ......
Page 1096: ......