Oki B6500 Service Manual

1 – 105
Chapter 1 Troubleshooting
FIP4.8 SENSOR NO PAPER
Step Check Yes No
Possible causes:
SENSOR NO PAPER (PL20.2.33)
ACTUATOR NO PAPER (PL20.2.6)
HARNESS ASSY CLSNR1 (PL20.2.31)
HARNESS ASSY CLSNR2 (PL20.1.36)
550 PAPER CASSETTE (PL20.3.50)
Option 550 Paper Feeder PWBA FEEDER 550
(PL20.1.34) HVPS/MCU (PL12.1.19)
1
Checking ACTUATOR NO PAPER
Remove Option 550 Paper Feeder. (RRP20.1)
Install 550 PAPER CASSETTE.
Move ACTUATOR NO PAPER with a finger.
Does ACTUATOR NO PAPER operate smoothly?
Does the flag go into the detecting area of the sensor
when the paper is set, and out of the detecting area
when there is no paper?
With tool Go to
step 2. Without
tool Go to step 3.
Replace ACTUA-
TOR NO PAPER.
2
Checking SENSOR NO PAPER (1)
Install Option 550 Paper Feeder. (RRP20.1)
Remove EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove 550 PAPER CASSETTE.
Put the hand in the cassette insertion space, move
ACTUATOR NO PAPER.
Does the number increase one by one, as ACTUATOR
NO PAPER operates?
Check using Chapter 2 Diagnostic [Sensor/Switch
Check].
Replace HVPS/
MCU.
(RRP12.10)
Go to step 3.
3
Checking SENSOR NO PAPER (2)
Install Option 550 Paper Feeder. (RRP20.1)
Remove EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove 550 PAPER CASSETTE.
Put the hand in the cassette insertion space, move
ACTUATOR NO PAPER.
Is the voltage across P/J85-7(+) and P/J85-6(-), 0 VDC
when ACTUATOR NO PAPER is held up, and 3.3 VDC
when released?
Go to FIP4.6, 4.7
PWBA FEEDER
550.
Go to step 4.
4
Checking HARNESS ASSY CLSNR1 for continuity
Remove HARNESS ASSY LSNR1.
Is there continuity between
J855-5 and J852-3?
J855-6 and J852-2?
J855-7 and J852-1?
Go to step 5.
Replace HAR-
NESS ASSY
CLSNR1.
5
Checking HARNESS ASSY CLSNR2 for continuity
Disconnect connector P/J85 from PWBA FEEDER 550.
Is there continuity between
J85-5 and J855-3?
J85-6 and J855-2?
J85-7 and J855-1?
Go to step 6.
Replace HAR-
NESS ASSY
CLSNR2.

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