Oki B6500 Service Manual

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Chapter 1 Troubleshooting
FIP- 1.P7 Horizontal stripes
Before commencing troubleshooting, check the paper transfer course. Make sure there is no foreign
articles on the transfer course, such as staples, paper clips, scraps of paper and so on.
Print defect
There are horizontal black stripes along the paper.
ESS and possible causes
- EP CARTRIDGE
- HVPS/MCU (PL12.1.19)
- GUIDE ASSY CRU R (PL8.1.25)
- BTR ASSY (PL8.1.21)
- 150 FEEDER ASSY (PL5.1.1)
- MAIN MOTOR (PL11.1.2)
- GEAR ASSY HOUSING (PL11.1.3)
- ROS ASSY (PL8.1.1)
- PWBA ESS (PL12.1.13)
- LVPS (PL12.1.5)
- 550 FEEDER ASSY (PL7.1.10)
Step Check Yes No
1
Checking EP CARTRIDGE
Install a new EP CARTRIDGE.
Re-print the problem image.
Have the horizontal black stripes gone?
End of work. Go to step 2
2
Checking ROS ASSY
Are the connectors on ROS ASSY surely connected?
Is the ROS ASSY surely secured to the frame?
Go to step 3.
Reconnect the con-
nectors and/or rein-
stall the ROS
ASSY.
3
Checking Drive Assy and GEAR ASSY HOUSING
Replace Drive Assy and GEAR ASSY HOUSING.
(RRP11.3)
Re-print the problem image.
Does the problem still occur?
Go to step 4. End of work
4
Checking GUIDE ASSU CRU R for continuity
Remove EP CARTRIDGE.
Check if there are any deformation or stains on the
plate of GUIDE ASSY CRU R.
Check the continuity of the plate of GUIDE ASSY CRU
R.
Are there any deformation or stains on the plate of
GUIDE ASSY CRU R, and does it continuous?
Go to step 5.
Replace GUIDE
ASSY CRU R.
(RRP8.13)
5
Checking connection of GUIDE ASY CRU R
Check the contact of the plate of GUIDE ASSY CRU R
with the terminal on HVPS/MCU.
Does the plate of GUIDE ASSY CRU R correctly con-
tact with the terminal on HVPS/MCU?
Go to step 6.
Replace GUIDE
ASSY CRU R.
(RRP8.13)

Oki B6500 Specifications

General

Color	No
Duplex printing	Yes
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	8 s
Print speed (black, normal quality, A4/US Letter)	45 ppm
Flash memory	512 MB
Storage media	HDD
Internal memory	128 MB
Maximum internal memory	640 MB
Internal storage capacity	40 GB
Total input capacity	700 sheets
Total output capacity	500 sheets
Maximum input capacity	1800 sheets
Power requirements	230V
Standard media sizes	3\
Power consumption (active)	880 W
Compatible operating systems	Windows, XP (Home, Professional); 2000 (Workstation, Professional, Server, Advanced Server – SP4 +); NT 4.0 (Workstation, Server – SP6 +); ME; 98/98 SE; Mac OS 9.1+/10.1+; Unix (Sun Solaris 8, 7, 2.5; HP-UX 11.0/ 10.20); Linux (Redhat 6.x).
Envelopes sizes	C5, DL
Media weight (tray 1)	60 - 216 gsm
Non-ISO print media sizes	Executive (184 x 267mm), index card, Letter (media size), Statement (140 x 216mm), Legal (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
PCL fonts	86
Printer fonts	PCL, PostScript
Maximum duty cycle	200000 pages per month
Number of PostScript fonts	136
Power consumption (standby)	110 W
Power consumption (printing)	1200 W

Weight and Dimensions

Dimensions (WxDxH)	422 x 465 x 404 mm