Oki B4350 Service Manual

42641101TH Rev.1 5 /
Oki Data CONFIDENTIAL
4.2 Cleaning.......................................................................................................... 50
4.2.1 Cleaning of LED Lens Array ...................................................................................... 50
4.2.2 Cleaning Page Function ............................................................................................ 51
5. TROUBLESHOOTING PROCEDURES ................................................................. 52
5.1 Troubleshooting Tips ...................................................................................... 52
5.2 Points to Check before Correcting Image Problems....................................... 52
5.3 Tips for Correcting Image Problems ............................................................... 52
5.4 Preparation for Troubleshooting ..................................................................... 53
5.5 Troubleshooting Flow ..................................................................................... 53
5.5.1 LCD Status Message/Problem List............................................................................ 53
5.5.2 LCD Message Troubleshooting ................................................................................. 59
5.5.3 Image Troubleshooting .............................................................................................. 67
6. WIRING DIAGRAM................................................................................................ 76
6.1 Interconnect Signal Diagram .......................................................................... 76
6.2 PCB Layout and Connector Signal List .......................................................... 77
6.3 Resistance Check ........................................................................................... 89
APPENDIX A RS-232C SERIAL INTERFACE (OPTION) ......................................... 91
APPENDIX B CENTRONICS PARALLEL INTERFACE............................................ 96
APPENDIX C UNIVERSAL SERIAL BUS (USB)..................................................... 105
APPENDIX D LOOP TEST (RS-232C INTERFACE) ............................................... 111
APPENDIX E DIAGNOSTICS TEST ........................................................................ 112

Oki B4350 Specifications

General

Color	No
Print technology	Laser
Maximum resolution	600 x 1200 DPI
Time to first page (black, normal)	6.2 s
Print speed (black, normal quality, A4/US Letter)	22 ppm
Internal memory	16 MB
Processor model	Power PC
Built-in processor	Yes
Maximum internal memory	272 MB
Sound power level (standby)	38 dB
Sound pressure level (printing)	53 dB
Total input capacity	250 sheets
Total output capacity	150 sheets
Paper tray 2 input capacity	500 sheets
Maximum print size	210 x 297 mm
Media weight (tray 1)	60 - 105 gsm
Non-ISO print media sizes	Executive (184 x 267mm), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Power requirements	230VAC + / - 10%
Compatible operating systems	-Windows 95/98/98 SE/ME/NT4 Workstation/NT4 Server/2000 Workstation/2000 Professional/2000 Server/2000 Advanced Server/XP Professional/XP Home/NT Terminal Server Edition/2000 Terminal Server. -Mac OS 8.6/OS X 10.1.
Display	LCD
Maximum duty cycle	30000 pages per month
Power consumption (printing)	350 W
Power consumption (PowerSave)	13 W
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	10 - 80 %

Weight and Dimensions

Dimensions (WxDxH)	355 x 395 x 200 mm