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Image
quality 17
The copy has horizontal lines of background
The copy is not sharp
Cause
Step
Checks
Y/N Action
1
Is the location of the
problem area on the copy
consistent for all copies
made in direct mode?
Yes
Go to step 4
Scanning lamp, power
supply PBA
2
Does the scanning lamp
flicker while the scanner
is moving?
Yes
Check the scanning lamp
and the power supply
PBA (lamp ON circuit),
and the 2.4V power sup-
ply.
Developing unit
3
Is there an even coating
of toner on the develop-
ing roller?
No
Check the developing
bias.
Scanner
4
Make reduced size cop-
ies. Compare the copies
with the copies made in
direct mode. Has the
location of the problem
changed?
Yes
Check the scanning sys-
tem
OPC drive
OPC unit
No
Check the feeding system
Cause
Step
Checks
Y/N Action
1
Is a printed photo (with
raster pattern) copied in
photo mode?
Yes
Advise the user that
moiré may occur at
times.
Platen
2
Is there oil on the platen? Yes
Clean the platen
Scanner (dirty)
3
Clean the scanning lamp,
the exposure reference
strip, the mirror, the lens
and the exposure aper-
ture.
Position of the mirror
4
Is the horizontal repro-
duction ratio within the
specified range, in direct
mode?
No
Adjust the distance
between the mirror 1 and
the mirror 2.
Developing bias
5
Is the developing bias
generated correctly?
No
■
Replace the power sup-
ply PBA
■
Replace the DC control
PBA
OPC unit, the transfer
system
6
Replace the OPC unit. Is
the problem corrected?
No
Check the transfer sys-
tem
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...