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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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Содержание A230
Страница 1: ...SERVICE MANUAL 000861MIU A230 A231 A232 RICOH GROUP COMPANIES ...
Страница 2: ...SERVICE MANUAL A230 A231 A232 RICOH GROUP COMPANIES ...
Страница 3: ...A230 A231 A232 SERVICE MANUAL 000861MIU ...
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Страница 6: ......
Страница 8: ......
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Страница 35: ......
Страница 39: ......
Страница 40: ...OVERALL MACHINE INFORMATION ...
Страница 41: ......
Страница 62: ...DETAILED SECTION DESCRIPTIONS ...
Страница 63: ......
Страница 139: ......
Страница 140: ...INSTALLATION ...
Страница 141: ......
Страница 208: ...SERVICE TABLES ...
Страница 209: ......
Страница 280: ...PREVENTIVE MAINTENANCE ...
Страница 281: ......
Страница 285: ...REPLACEMENT AND ADJUSTMENT ...
Страница 286: ......
Страница 343: ...TROUBLESHOOTING ...
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Страница 369: ...SERVICE CALL CONDITIONS 7 23B A230 A231 A232 SM This Page Is Intentionally Left Blank Rev 01 99 ...
Страница 383: ...PAPER TRAY UNIT A682 ...
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Страница 403: ...LARGE CAPACITY TRAY A683 ...
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Страница 419: ...BY PASS A689 ...
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Страница 433: ... 1 BIN TRAY A684 ...
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Страница 443: ...AUTO DOCUMENT FEEDER A680 ...
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Страница 468: ...ROM HISTORY 12 22 A230 A231 A232 SM B Rev 09 2000 ...
Страница 477: ...INTERCHANGE UNIT A690 ...
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Страница 485: ... DUPLEX A687 ...
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Страница 498: ......
Страница 499: ...BRIDGE UNIT A688 ...
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Страница 507: ...1 000 SHEET FINISHER A681 ...
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Страница 535: ...3 000 SHEET FINISHER A697 ...
Страница 536: ......
Страница 571: ...SwapBox and SwapFTL Installation Manual ...
Страница 572: ......
Страница 583: ...SwapFTL Binary Utility Operation Manual ...
Страница 584: ......
Страница 595: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Страница 596: ......
Страница 597: ...NINE TRAY MAILBOX AND BRIDGE UNIT G909 G912 ...
Страница 598: ......
Страница 627: ...SCANNER KIT A695 ...
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Страница 802: ...Service Tables A693 DEDICATED TRANSMISSION PARAMETERS 4 77 SM A230 A231 A232 Switch 08 Not used ...
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Страница 853: ...TECHNICAL SERVICE BULLETINS ...
Страница 857: ...ISDN Unit A816 ...
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Страница 909: ...TECHNICAL SERVICE BULLETINS ...
Страница 922: ...SwapFTL and SwapFTL Installation Manual ...
Страница 933: ...SwapFTL Binary Utility Operation Manual ...
Страница 944: ...SM A203 231 A232 19 11 3 4 HELP MENU 3 4 1 HELP ABOUT SWAPUTI SwapBox And SwapFTL FUNCTIONS ...
Страница 986: ...SERVICE CALL CONDITIONS 7 23B A230 A231 A232 SM This Page Is Intentionally Left Blank Rev 01 99 ...
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Страница 1096: ......