Oki C911 Maintenance Manual

45530603TH Rev.2
5
Oki Data CONFIDENTIAL
5.3.3 Printing on stand-alone basis...................................................................5-54
5.3.4 Button-pressed functions at power-on .....................................................5-54
5.4 Setup after part replacement ...........................................................................5-55
5.4.1 Notes on PU/ CU board replacement ......................................................5-55
5.5 Manual density adjustment setting ..................................................................5-57
5.6 Boot Menu List .................................................................................................5-58
6. REPLACEMENT OF PARTS .................................................6-1
6.1 Notes on replacement of parts ..........................................................................6-2
6.2 Part replacement procedure ..............................................................................6-4
6.2.1 Toner Cartridge ..........................................................................................6-4
6.2.2 Image Drum ...............................................................................................6-4
6.2.3 Belt Unit .....................................................................................................6-6
6.2.4 Transfer roller unit ......................................................................................6-8
6.2.5 Fuser unit ..................................................................................................6-9
6.2.6 Waste toner box ......................................................................................6-10
6.2.7 LED Head ................................................................................................6-11
6.2.8 Cassette-Assy/Guide-Assy-Tail/Label-Tray/Indicator-Paper-Size ............6-13
6.2.9 Cover-Assy-TC.........................................................................................6-14
6.2.10 Cover-Assy-OP-Panel ..............................................................................6-14
6.2.11 Lever-Stacker-Full ....................................................................................6-15
6.2.12 Eject-Assy-Joboff/Motor-Joboff ................................................................6-15
6.2.13 Guide-Assy-Eject-M .................................................................................6-16
6.2.14 Sheet-OP-Panel/Plate-Logo/Plate-Name.................................................6-16
6.2.15 Cover-Assy-Top-B ....................................................................................6-17
6.2.16 Duplex-Unit ..............................................................................................6-17
6.2.17 Duplex-Board(Board-FIT-1)(Duplex unit control PCB) .............................6-18
6.2.18 Cover-Assy-Front .....................................................................................6-18
6.2.19 Filter-Front/Motor-FAN/Board-F1E(External LED PCB) ..........................6-19
6.2.20 Board-F1D(Driver relay PCB)/Board-F1Y(PU/CU PCB)/
Board-F1X(Spot color PCB) /Board-Memory/FAN .................................6-19
6.2.21 Board-AHV( High-voltage power supply PCB) .........................................6-20
6.2.22 Motor-Assy-ID ..........................................................................................6-20
6.2.23 Board-AHR(High-voltage relay PCB) .......................................................6-21
6.2.24 Board-TAGRW/FFC-Cable/Motor-FAN .....................................................6-21
6.2.25 Low-Voltage-Power-Unit/Low-Voltage-FAN/Geard-Motor ........................6-22
6.2.26 Paper size sensor ....................................................................................6-22
6.2.27 Belt-Drive-Assy/Fuser-Drive-Assy/Belt-Mini-Pitch ...................................6-23
6.2.28 MPT-Unit ..................................................................................................6-23
6.2.29 Hopper-Assy/Board-F1S(MPT relay PCB) ...............................................6-24
6.2.30 Clutch(Feeder-Assy) ................................................................................6-24
6.2.31 Frame-Assy-TC/Frame-Assy-TC-R ..........................................................6-25
6.2.32 Plate-Fix-Pivot ..........................................................................................6-26
6.2.33 Board-F1H(Print head power relay PCB)/Board-MFH(Environmental sensor PCB)/
Board-F1G(Tag terminal PCB)/ Board-F1N(Toner-low sensor PCB) ..................6-27
6.2.34 Motor-Assy-Geard ....................................................................................6-27
6.2.35 EJ-Rail-Unit .............................................................................................6-28
6.2.36 Guide-Assy-Eject-Lower-SP/Frame-Assy-TR2/Decurl-Assy ...................6-28
6.2.37 Gear-Assy-Oneway-Z33/Gear-Assy-Oneway-Z33-R/
Board-F1L(Rail unit relay PCB) ..............................................................6-29
6.2.38 Slide-Rail-Assy ........................................................................................6-30
6.2.39 Roller-Assy-Regist-2/Roller-Assy-Synchro/Regist-Sensor-Assy_753 .....6-30
6.2.40 Waste toner full sensor Board-F1N(Toner Low sensor PCB) ..................6-31
6.2.41 Motor-Assy-Regist ...................................................................................6-31
6.2.42 Connector-Assy-Fuser .............................................................................6-32
6.2.43 Hopping-Unit ............................................................................................6-32
6.2.44 Roller-Assy-Regist-T ...............................................................................6-33
6.2.45 Board-F1K(Cassette sensor relay PCB) ..................................................6-33
6.2.46 Board-F1W(Soft switch PCB) ..................................................................6-34
6.2.47 Sensor-Assy-Front/Motor-FAN ................................................................6-34
6.2.48 Holder-Head-F/Holder-Head-R ................................................................6-35
6.2.49 Paper Feed Roller ....................................................................................6-35
6.3 Portions Lubricated ..........................................................................................6-38
7. PERIODIC MAINTENANCE .................................................. 7-1
7.1 Cleaning ............................................................................................................7-2
7.2 Cleaning the LED lens array ..............................................................................7-3
7.3 Cleaning feed rollers ..........................................................................................7-8
7.4 Cleaning feed rollers of the Multi-purpose Tray ...............................................7-10
7.5 Cleaning Belt Unit ............................................................................................7-13
7.6 Cleaning Pinch rollers ......................................................................................7-14
7.7 Cleaning Transfer roller unit and paper feeding route ......................................7-15
8. CONNECTION DIAGRAMS ...................................................8-1
8.1 Resistance value check .....................................................................................8-2
8.2 Parts location .....................................................................................................8-9

Oki C911 Specifications

General

Brand	Oki
Model	C911
Category	Printer
Language	English