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CONTENTS
1. CONFIGURATION ....................................................................................... 1-1
1.1 System Configuration................................................................................................. 1-1
1.2 Printer Configuration .................................................................................................. 1-2
1.3 Optional Configuration ............................................................................................... 1-3
1.4 Specification ............................................................................................................... 1-5
1.5 Safety Standards ....................................................................................................... 1-7
1.5.1 Certification label .......................................................................................... 1-7
1.5.2 Warning label ................................................................................................ 1-7
2. OPERATION DESCRIPTION ...................................................................... 2-1
2.1 Main Control Board (BOARD-COM) .......................................................................... 2-3
2.2 Power/Sensor Board .................................................................................................. 2-7
2.3 Relay/Driver Board (AOLC board) ............................................................................. 2-9
2.4 Electro-photographic Process .................................................................................... 2-10
2.4.1 Electro-photographic process mechanism ................................................... 2-10
2.4.2 Electro-photographic process ....................................................................... 2-12
2.4.3 Process operation descriptions .................................................................... 2-15
2.4.4 Revision of LED Head Illumination ............................................................... 2-24
2.5 Paper Jam Detection ................................................................................................. 2-28
2.6 Cover Open ................................................................................................................ 2-29
2.7 Toner Low Detection .................................................................................................. 2-30
2.8 Stacker-full Detection ................................................................................................. 2-32
2.9 Page Size Detection .................................................................................................. 2-32
2.10 PostScript Board (BOARD-PSBA) (Option) ............................................................... 2-32
3. PARTS REPLACEMENT ........................................................................ 3-1
3.1 Precautions for Parts Replacement ........................................................................... 3-1
3.2 Parts Layout ............................................................................................................... 3-3
3.3 How to Change Parts ................................................................................................. 3-7
3.3.1 Rear cover, side cover (L) Assy, face-up stacker Assy, and I/F cover Assy. 3-8
3.3.2 Contact Assy ................................................................................................ 3-9
3.3.3 DC fan motor ................................................................................................ 3-10
3.3.4 Manual feed hopper Assy ............................................................................. 3-11
3.3.5 Side cover (R) (operator panel Assy) ........................................................... 3-12
3.3.6 Earth plate BK (R) (BOARD-PSBA, BOARD-COM) ..................................... 3-13
3.3.7 Stacker cover Assy, damper arm, and washer ............................................. 3-14
3.3.8 Damper ......................................................................................................... 3-15
3.3.9 Stacker full sensor Assy ............................................................................... 3-16
3.3.10 Cable cover (cable guides A and B) ............................................................. 3-17
3.3.11 Eject roller Assy ............................................................................................ 3-18
3.3.12 Paper supply guide D ................................................................................... 3-19
3.3.13 Separator F ................................................................................................... 3-20
3.3.14 Front feeder roller Assy ................................................................................ 3-22
3.3.15 Hopping motor .............................................................................................. 3-23
3.3.16 Front feeder paper end sensor ..................................................................... 3-24
3.3.17 Main chassis unit .......................................................................................... 3-25
3.3.18 Registration roller ......................................................................................... 3-27
3.3.19 Drum motor ................................................................................................... 3-28
3.3.20 Idle gear ........................................................................................................ 3-30
3.3.21 Fusing Assy .................................................................................................. 3-31
3.3.22 Fuser pressure roller .................................................................................... 3-32
3.3.23 EP lock shaft ................................................................................................. 3-33
3.3.24 Hopping roller Assy ...................................................................................... 3-34
3.3.25 Outlet sensor lever ....................................................................................... 3-35
3.3.26 Toner sensor lever ........................................................................................ 3-36
3.2.27 Paper sensor lever ....................................................................................... 3-37
3.3.28 Inlet sensor lever .......................................................................................... 3-38
3.3.29 Insulator ........................................................................................................ 3-39
3.3.30 Paper end lever ............................................................................................ 3-41
3.3.31 Guide rail (L) Assy ........................................................................................ 3-42
3.3.32 Guide rail (R) Assy ....................................................................................... 3-44
3.3.33 Cover Frame ................................................................................................. 3-46
3.3.34 LED head ...................................................................................................... 3-47
3.3.35 Separator Assy ............................................................................................. 3-48
3.3.36 Transfer roller ............................................................................................... 3-49
4. ADJUSTMENT .......................................................................................... 4-1
4.1 Maintenance Modes And Functions ........................................................................... 4-1
4.1.1 User maintenance mode .............................................................................. 4-3
4.1.2 System maintenance mode .......................................................................... 4-5
4.1.3 Engine maintenance mode ........................................................................... 4-8
4.1.4 EEPROM initialization .................................................................................. 4-12
4.2 Adjustment When Replacing A Part ........................................................................... 4-13
4.2.1 Setting of LED head drive time ..................................................................... 4-13
4.2.2 Resetting the fuser counter .......................................................................... 4-16
4.2.3 Destination setting ........................................................................................ 4-17
5. PERIODIC MAINTENANCE ........................................................................ 5-1
5.1 Periodic Replacing Part ............................................................................................. 5-1
5.2 Cleaning ..................................................................................................................... 5-1
5.2.1 Cleaning of LED lens array ........................................................................... 5-1
6. TROUBLESHOOTING PROCEDURES .................................................. 6-1
6.1 Troubleshooting Tips ................................................................................................. 6-1
6.2 Points to Check before Correcting Image Problems .................................................. 6-1
6.3 Tips for Correcting Image Problems .......................................................................... 6-1
6.4 Preparation for Troubleshooting ................................................................................ 6-2
6.5 Troubleshooting Flow ................................................................................................. 6-2
6.5.1 LCD status message/trouble list ................................................................... 6-2
6.5.2 LCD message troubleshooting ..................................................................... 6-13
6.5.3 Image troubleshooting .................................................................................. 6-32
7. WIRING DIAGRAM ................................................................................. 7-1
7.1 Interconnect Signal Diagram ...................................................................................... 7-1
7.2 PCB Layout ................................................................................................................ 7-2
7.3 Resistance Check ...................................................................................................... 7-5
7.4 Program/Font ROM Location ..................................................................................... 7-7
8. PARTS LIST ................................................................................................ 8-1
APPENDIX A Centronics Parallel Interface.................................................. A-1
B High Capacity Second Paper Feeder .................................... B-1
C Multi Feeder ............................................................................. C-1
D LocalTalk Serial Interface ....................................................... E-1
(Available only when a PostScript board is mounted.)
1. CONFIGURATION
1. CONFIGURATION
1.1 System Configuration
OKIPAGE16n consists of control and engine blocks as the standard configuration (See Figure
1-1.)
In addition, the following options are also available.
AC IN
Printer
230/240V
Operator Face down Face up
panel stacker stacker
PC etc. Printer
Main control Power/ Mechanism
Sensor
Board *
I/D unit
Centronics
Parallel interface *
(Bidirection) DC Fan Toner Cartridge
Front Feeder
LED head
Drum motor
LOCAL TALK Registration motor
(Available only when Hopping motor
a PostScript board
is added.)
LAN etc. OKI HSP Paper tray
interface board
(Option) Paper size
detection switch
Extension RAM
(Option)
High Capacity Multi Feeder
Second Paper (Option)
Feeder
(Option)
PostScript
board
(Option)
*: Consumables
: Paper feeding
: Singal flow : produced by third vender
Figure 1-1
1-1
1.2 Printer Configuration
The printer unit consists of the following hardware components: