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General
operation 9
Fusing
After separation, the copy paper is passed between the fusing film and the fuser
roller. The toner image is fused to the fibres of the paper.
The fixing heater is a plane-shaped heater; it serves to eliminate warm-up time
by heating the area of contact with the fixing film.
The temperature of the fixing heater is monitored by the main thermistor (TH1)
located at the centre of the heater. (The fixing heater is controlled to a specific
temperature at all times.)
A sub thermistor (TH2) is provided at the end of the fixing heater to monitor
the temperature of the area which remains free of contact with paper when
small-size paper is moved through the fixing assembly, thereby preventing
overheating.
The fixing cleaning roller is made of aluminium and is kept in contact with the
lower fixing roller to remove toner from the lower fixing roller. (It also serves
to discharge heat from the lower fixing roller.)
The metal core of the lower fixing assembly is given a positive bias to prevent
offset of toner to the fixing film.
OPC cleaning
The remaining toner on the OPC is scraped off by the cleaning blade. This as
a preparation for the next copy. The toner that is scraped off is caught by a me-
linex strip, and moved to the waste container by a rotary blade.
Main thermistor (TH1)
Sub thermistor (TH2)
Fixing film
Fixing heater
Fixing
cleaning roller
Lower fixing roller
Toner
Copy paper
main thermistor (TH1)
sub thermistor (TH2)
fixing film
toner
copy paper
lower fixing roller
fixing cleaning
roller
fixing heater
Cleaning blade
Blade
Scoop-up sheet
cleaning blade
blade
scoop-up sheet
Содержание 3121
Страница 1: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 3121 3122...
Страница 6: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc INSTALLATION...
Страница 72: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc IMAGE QUALITY...
Страница 76: ...Confidential 1998 Oc Technologies B V ed 1 Image quality 3 2 Image adjustment basic procedure...
Страница 93: ...20 TSM Oc 3121 Image quality Isolating a PBA printer image fault...
Страница 94: ...Confidential 1998 Oc Technologies B V ed 1 Image quality 21 5 Isolating a PBA FAX image fault...
Страница 105: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc TROUBLE SHOOTING...
Страница 108: ...Confidential 2000 Oc Technologies B V ed 2 Trouble shooting RDF Self Diagnosis FAX related error codes...
Страница 188: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc GENERAL...
Страница 201: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 01 PHOTOCONDUCTOR...
Страница 205: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 02 CHARGING...
Страница 210: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 04 EXPOSURE...
Страница 214: ...Confidential 1998 Oc Technologies B V ed 1 04 Exposure 403 4 Loosen the set screw 4 and remove the cable front and rear...
Страница 239: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 05 DEVELOPING...
Страница 242: ...302 TSM Oc 3121 Adjustments...
Страница 251: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 06 TRANSFER...
Страница 260: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 07 CLEANING...
Страница 261: ...Confidential 1998 Oc Technologies B V ed 1 07 Cleaning Contents Functional description 1 Waste Toner 501...
Страница 263: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 08 IMAGE PROCESSING...
Страница 299: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 10 RDF...
Страница 391: ...510 TSM Oc 3121 Functional description 7 Inputs to the RDF Control PBA 1 Inputs to the RDF Control PBA...
Страница 392: ...Confidential 1998 Oc Technologies B V ed 1 10 RDF 511 2 Inputs to the RDF Control PBA...
Страница 393: ...512 TSM Oc 3121 Functional description 8 Outputs from the RDF Control PBA 1 Outputs from the RDF Control PBA...
Страница 398: ...Confidential 1998 Oc Technologies B V ed 1 10 RDF 517 A4 A B configured RDF INCH configured RDF...
Страница 423: ...542 TSM Oc 3121 Functional description delivery roller 2nd document 3rd document Feeding belt 2nd document 1st document...
Страница 427: ...546 TSM Oc 3121 Functional description e Sequence of operations page composition fax mode...
Страница 432: ...Confidential 1998 Oc Technologies B V ed 1 10 RDF 551 Sequence of Operations small sizes continuous pick up and return...
Страница 433: ...552 TSM Oc 3121 Functional description Sequence of Operations small sizes return...
Страница 450: ...Confidential 1998 Oc Technologies B V ed 1 10 RDF 701 Electrical diagrams...
Страница 451: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 11 DIGITAL DOCUMENT HANDLING...
Страница 462: ...510 TSM Oc 3121 Functional description Inputs to and Outputs from the FAX Board...
Страница 465: ...Confidential 1998 Oc Technologies B V ed 1 11 Digital document handling 513...
Страница 468: ...516 TSM Oc 3121 Functional description CORE IP Board...
Страница 469: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 12 PAPER...
Страница 487: ...506 TSM Oc 3121 Functional description The upper cassette The upper cassette cassette pick up PBA...
Страница 509: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 13 SPECIALITY INPUT...
Страница 519: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 16 DUPLEX...
Страница 537: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 17 FIXING...
Страница 542: ...402 TSM Oc 3121 Dis assembly 8 Remove the two screws 7 Take out the fuser drive 6...
Страница 569: ...512 TSM Oc 3121 Functional description Brush Hinge arm...
Страница 570: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 19 DELIVERY...
Страница 606: ...Confidential 1998 Oc Technologies B V ed 1 19 DELIVERY 701 Electrical diagrams...
Страница 607: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 21 SORTER...
Страница 721: ...Confidential 1998 Oc Technologies B V ed 1 21 SORTER 701 Electrical diagrams...
Страница 722: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 22 POWER CONTROL...
Страница 733: ...Confidential 1998 Oc Technologies B V ed 1 22 Power Control 507 Image processor PBA 2 3 inputs and outputs...
Страница 734: ...508 TSM Oc 3121 Functional description Image processor PBA 3 3 inputs and outputs...
Страница 735: ...Confidential 1998 Oc Technologies B V ed 1 22 Power Control 509 DC Control PBA 1 3 inputs...
Страница 736: ...510 TSM Oc 3121 Functional description DC Control PBA 2 3 inputs...
Страница 737: ...Confidential 1998 Oc Technologies B V ed 1 22 Power Control 511 DC Control PBA 3 3 inputs...
Страница 740: ...514 TSM Oc 3121 Functional description DC control PBA 3 3 outputs...
Страница 752: ...526 TSM Oc 3121 Functional description Cycle of SLEEP Mode States SLEEP 1 SLEEP 2 Top SLEEP 1 Bottom SLEEP 2...
Страница 768: ...Confidential 1998 Oc Technologies B V ed 1 22 Power Control 613 13 CORE IP PBA J503 J504 J510 J501 J502...
Страница 769: ...Confidential 1998 Oc Technologies B V ed 1 22 POWER CONTROL 1 701 Electrical diagrams...
Страница 770: ...Confidential 1998 Oc Technologies B V ed 1 22 POWER CONTROL 2 702...
Страница 771: ...Confidential 1998 Oc Technologies B V ed 1 22 POWER CONTROL 3 703...
Страница 772: ...Confidential 1998 Oc Technologies B V ed 1 22 POWER CONTROL 4 704...
Страница 773: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc 23 DRIVE...
Страница 778: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc MISCELLANEOUS...
Страница 785: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc PREVENTIVE MAINTENANCE...
Страница 793: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc TECHNICAL DATA...
Страница 809: ...Technical Service Manual Oc 3121 3122 Oc Oc Oc Oc SDS DESCRIPTION...