31 August 1989
8.4 CLEANING BLADE
The cleaning pressure mechanism is shown above, When the cleaning solenoid [A] is
energized, it turns the cleaning solenoid lever [B] clockwise (rear view). Due to the pull of the
cleaning blade pressure spring [C], the pressure arm [D] also turns clockwise and pushes the
cleaning blade lever [E] up. The cleaning blade holder then rotates and the cleaning blade [F]
presses against the drum. Blade pressure is limited by the pressure spring [I].
The cleaning blade is mounted on the blade bracket with a single swivel screw [G] at its exact
center. With this type of mounting, the blade sets parallel and applies even pressure
automatically. Also since pressure is transmitted to the center, a single pressure spring is
used.
The blade scraper [H] is mounted in contact with the bottom side of the cleaning blade. When
pressure is applied to the cleaning blade, it is forced forward and bends at its outer edge.
When pressure is released from the blade, it snaps back to its original position.
Simultaneously, the mylar of the blade scraper scrapes off the excess toner and paper dust
from the edge of the blade. This helps to maintain efficient cleaning. The blade pressure is
released when there is no key input for 15 minutes, 15 seconds after a paper misfeed occurs,
or when the safety switches open. Also, the blade pressure is released for 1 second after
every 100th copy. The blade scraper also prevents toner from scattering inside the copier by
keeping toner inside the cleaning unit.
2-58
Содержание FT5540
Страница 1: ...RICOH FT5540 5550 5570 SERVICE MANUAL RICOH COMPANY LTD...
Страница 14: ...SECTION 1 OVERALL MACHINE INFORMATION...
Страница 27: ...31 August 1989 4 COPY CYCLE 1 12...
Страница 43: ...31 August 1989 10 OVERALL MACHINE CONTROL 1 28...
Страница 45: ...SECTION 2 DETAILED SECTION DESCRIPTIONS...
Страница 166: ...SECTION 3...
Страница 169: ...31 August 1989 1 2 MINIMUM SPACE REQUIREMENTS...
Страница 184: ...SECTION 4...
Страница 208: ...SECTION 5 ADJUSTMENT...
Страница 285: ...SECTION 6...
Страница 287: ...1 Main PCB Schematic 1 6 1...
Страница 288: ...8 L a r g e C a p a c i t y T r a y S c h e m a t i c 1 000 sheets 6 7...
Страница 289: ...9 L a r g e C a p a c i t y T r a y S c h e m a t i c 2 500 sheets 3 1 A u g u s t 1 9 8 9 6 8 A421...
Страница 290: ...12 MENU READER PCB upper...
Страница 291: ...13 MENU READER PCB lower...
Страница 292: ...SECTION 7...
Страница 307: ...SECTION 8 ARDF...
Страница 327: ...31 August 1989 5 Remove the DF cover E 4 screws and remove the shipping retainers 2 foam pads F 2 strips of tape G 8 19...
Страница 336: ...SECTION 9...
Страница 359: ...SECTION 10 1K LCT...
Страница 385: ...SECTION 11 2 5K LCT...
Страница 398: ...SECTION 12...
Страница 401: ...31 August 1989 2 OVERALL MACHINE CONTROL The menu reader is controlled by the copier 12 2...
Страница 411: ...SECTION 13...
Страница 412: ...Contents TROUBLESHOOTING 1 SERVICE CALL CONDITIONS 13 1 2 DEFECTIVE SENSOR TABLE 13 8...
Страница 424: ...SECTION 14...
Страница 458: ...RT16 5897...
Страница 460: ...LOCATION OF UNIT August 31 89 3...
Страница 461: ...1 EXTERIOR 5897 August 31 89 4...
Страница 463: ...2 PAPER STOCK SECTION 5897 August 31 89 6...
Страница 465: ...3 DRIVE SECTION 5897 August 31 89 8...
Страница 467: ...4 TRAY CONTROL BOARD 5897 August 31 89 10...
Страница 469: ...5 HARNESS LAYOUT 5897 August 31 89 12...
Страница 471: ...6 MAIN DC HARNESS 5897 August 31 89 14...
Страница 473: ...7 MOTOR HARNESS 5897 August 31 89 16...
Страница 475: ...18...
Страница 477: ...9 DECAL 5897 August 31 89 20...
Страница 479: ...PARTS INDEX...
Страница 485: ...RICOH FT5540 5550 5570 A045 A046 P A R T S C A T A L O G First Edition August 1989 RICOH COMPANY LTD...
Страница 489: ...LOCATION OF UNIT August 31 89 3...
Страница 490: ...LOCATION OF UNIT August 31 89 4...
Страница 491: ...LOCATION OF UNIT August 31 89 5...
Страница 492: ...LOCATION OF UNIT August 31 89 6...
Страница 493: ...LOCATION OF UNIT 7...
Страница 494: ...1 EXTERIOR 1 A045 A046 August 31 89 8...
Страница 496: ...2 EXTERIOR 2 A045 A046 August 31 89 10...
Страница 498: ...3 OPTICS 1 A045 A046 August 31 89 12...
Страница 500: ...4 OPTICS 2 A045 A046 August 31 89 14...
Страница 502: ...5 OPTICS 3 A045 A046 16 August 31 89...
Страница 504: ...6 PLATEN COVER AND CASSETTE A045 A046 August 31 89 18...
Страница 506: ...7 PAPER FEED UNIT 1 A045 A046 August 31 89 20...
Страница 508: ...8 PAPER FEED UNIT 2 A045 A046 August 31 89 22...
Страница 510: ...9 DUPLEX SECTION 1 A045 A046 August 31 89...
Страница 512: ...10 DUPLEX SECTION 2 A045 A046 August 31 89 26...
Страница 514: ...11 DUPLEX SECTION 3 A045 A046 August 31 89...
Страница 516: ...12 INVERTOR SECTION 1 A045 A046 August 31 89...
Страница 518: ...13 INVERTOR SECTION 2 A045 A046 August 31 89 32...
Страница 520: ...14 DEVELOPMENT 1 A045 A046 August 31 89 34...
Страница 522: ...15 DEVELOPMENT 2 A045 A046 August 31 89 36...
Страница 524: ...16 TRANSFER AND SEPARATION A045 A046 August 31 89 38...
Страница 526: ...17 DRUM SECTION 1 A045 A046 August 31 89...
Страница 528: ...18 DRUM SECTION 2 A045 A046 August 31 89 42...
Страница 530: ...19 CLEANING UNIT 1 A045 A046 August 31 89 4 4...
Страница 532: ...20 CLEANING UNIT AND TONER COLLECTION A045 A046 August 31 89 4 6...
Страница 534: ...21 FUSING UNIT 1 A045 A046 August 31 89...
Страница 536: ...22 FUSING UNIT 2 A045 A046 August 31 89...
Страница 538: ...23 OPERATION PANEL A045 A046 August 31 89 52...
Страница 540: ...24 DRIVE SECTION A045 A046 August 31 89...
Страница 542: ...25 ELECTRICAL SECTION 1 A045 A046 August 31 89 56...
Страница 544: ...26 ELECTRICAL SECTION 2 A045 A046 August 31 89 58...
Страница 546: ...27 ELECTRICAL SECTION 3 A045 A046 August 31 89 60...
Страница 548: ...28 MAIN CONTROL BOARD A045 A046 August 31 89...
Страница 550: ...29 OPTICS BOARD A045 A046 August 31 89 64...
Страница 552: ...30 PAPER FEED CONTROL BOARD A045 A046 August 31 89 66...
Страница 554: ...31 AC DRIVE BOARD A045 A046 68 August 31 89...
Страница 556: ...32 HARNESS LAYOUT FRONT VIEW A045 A046 August 31 89 70...
Страница 558: ...33 DC HARNESS A045 A046 August 31 89 72...
Страница 560: ...34 AC HARNESS A045 A046 August 31 89...
Страница 562: ...35 LENS HOUSING HARNESS A045 A046 August 31 89 76...
Страница 564: ...36 LENS HOME SENSOR HARNESS A045 A046 August 31 89 78...
Страница 566: ...37 PAPER FEED UNIT HARNESS A045 A046 August 31 89 80...
Страница 568: ...38 AC DRIVE BOARD HARNESS A045 A046 August 31 89 82...
Страница 570: ...39 POWER PACK HARNESS A045 A046 August 31 89 84...
Страница 572: ...40 TRANSPORT UNIT HARNESS A045 A046 August 31 89 86...
Страница 574: ...41 SAFETY SWITCH HARNESS A045 A046 August 31 89 88...
Страница 576: ...42 LIFT MOTOR HARNESS A045 A046 August 31 89...
Страница 578: ...43 FUSING UNIT HARNESS AND GATE HARNESS A045 A046 August 31 89 92...
Страница 580: ...44 MAIN CONTROL HARNESS AND DC MOTOR HARNESS A045 A046 August 31 89...
Страница 582: ...45 CLEANER SENSOR HARNESS AND GATE SOLENOID HARNESS A045 A046 August 31 89 96...
Страница 584: ...46 DUPLEX ENTRANCE HARNESS AND TONER END SENSOR HARNESS A045 A046 August 31 89 98...
Страница 586: ...47 DUPLEX STOPPER SOLENOID HARNESS INVERTER GUIDE ENTRANCE HARNESS August 31 89 AND LED SENSOR HARNESS A045 A046 100...
Страница 588: ...48 TRANSPORT SENSOR HARNESS AND HOME SENSOR HARNESS A045 A046 August 31 89 102...
Страница 590: ...49 SPECIAL TOOL A045 A046 August 31 89 104...
Страница 592: ...50 DECAL AND DOCUMENT A045 A046 August 31 89 106...
Страница 593: ...50 DECAL AND DOCUMENT A045 A046 August 31 89...
Страница 594: ...50 DECAL AND DOCUMENT A045 A046 August 31 89...
Страница 595: ...50 DECAL AND DOCUMENT A045 A046 August 31 89 109...
Страница 596: ...50 DECAL AND DOCUMENT August 31 89 110...
Страница 598: ...PARTS INDEX...
Страница 632: ...CS2080 A411...
Страница 634: ...LOCATION OF UNIT August 31 89 3...
Страница 635: ...1 MIDI SORTER I A411 August 31 89 4...
Страница 637: ...6...
Страница 639: ...August 31 89 8...
Страница 641: ...4 SORTER HARNESS A411 August 31 89 10...
Страница 643: ...PARTS INDEX...
Страница 647: ...DF51 A418...
Страница 649: ...LOCATION OF UNIT 3...
Страница 650: ...1 DF I A418 August 31 89 4...
Страница 652: ...2 DF II A418 August 31 89...
Страница 654: ...3 DF III A418 August 31 89 8...
Страница 656: ...4 DF MAIN BOARD A418 August 31 89 10...
Страница 658: ...5 D F H A R N E S S A 4 1 8 August 31 89 12...
Страница 660: ...PARTS INDEX...
Страница 668: ...PS220 A420...
Страница 670: ...LOCATION OF UNIT August 31 89 3...
Страница 671: ...1 VERTICAL TRANSPORT A420 August 31 89 4...
Страница 673: ...2 EXTERIOR A420 August 31 89 6...
Страница 675: ...3 PAPER FEED SECTION A420 August 31 89 8...
Страница 677: ......
Страница 679: ...5 4TH PAPER FEED SECTION A420 August 31 89 12...
Страница 681: ...6 PRINT BOARD PAPER BANK A420 August 31 89 14...
Страница 683: ...7 HARNESS LAYOUT A420 August 31 89 16...
Страница 685: ...8 VERTICAL TRANSPORT HARNESS A420 August 31 89 18...
Страница 687: ...9 FRONT PAPER BANK HARNESS A420 August 31 89 20...
Страница 689: ...10 MAIN PAPER BANK HARNESS A420 August 31 89 22...
Страница 691: ...11 REAR PAPER BANK HARNESS A420 August 31 89...
Страница 693: ......
Страница 695: ...PARTS INDEX...
Страница 703: ...RT21 A421...
Страница 705: ...LOCATION OF UNIT August 31 89 3...
Страница 706: ...1 EXTERIOR AND DRIVE SECTION A421 August 31 89 4...
Страница 708: ...6...
Страница 710: ...3 TRAY MAIN BOARD A421 August 31 89 8...
Страница 712: ...4 HARNESS LAYOUT A421 August 31 89 10...
Страница 714: ...5 MAIN DC HARNESS A421 August 31 89...
Страница 716: ...6 AC HARNESS A421 August 31 89 14...
Страница 718: ...7 TRAY DC HARNESS A421 August 31 89 16...
Страница 720: ...8 DECAL A421 August 31 89 18...
Страница 722: ...PARTS INDEX...
Страница 727: ......
Страница 728: ...MR20 A952 1 Menu Reader A952 2 2 Decal and Document A952 4 Parts Index 8...
Страница 729: ...1 MENU READER A952 August 31 89 2...
Страница 731: ...2 DECAL AND DOCUMENT A952 August 31 89...
Страница 733: ...PARTS INDEX...