Oki MC860 Maintenance Manual

Oki Data CONFIDENTIAL
43967002TH Rev. 1
342 /
7. Troubleshooting
7.5.2. (14) Option unit cannot be recognized.
(14-1) Duplex unit cannot be recognized.
Check item Check work
Action to be taken at NG
(14-1-1) Duplex PCB
Duplex motor Check if the Duplex unit of MC860
specification is being used or not
Replace the Duplex
motor.
(14-1-2) Check the system connection
Chec
k the system
connection from
the PU PCB to the
Duplex PCB (V7Y
PCB).
Check that the cable between the PU PCB
option connector
to the Duplex PCB is
normally connected.
Correct the
connections.
Square connector
connecting the
Duplex unit to the
printer.
Check if any foreign material exists in the
connecting portion of the square connector.
Remove the foreign
material.
Square connector
connecting the
Duplex unit to the
printer.
Is the terminals of the square connector
damaged?
Replace the
connector.
(14-1-3)
Check the control signals
.
Check the control
signal that is output
from the PU PCB
to the Duplex PCB
(V7Y PCB).
Check the control signal that is output from
the PU PCB option connector
.
pin-6: TXD (PU
DUP)
pin-4: RXD (DUP
PU)
Replace the PU
PCB.
(14-2) 2nd tray unit cannot be recognized.
Check item Check work
Action to be taken at NG
(14-2-1) 2nd PCB
2nd tray unit Check if the 2nd tray unit of MC860dn
specification is being used or not.
Replace 2nd tray
unit.
(14-1-2) Check the system connection
Chec
k the system
connection from the
PU PCB to the 2nd
tray unit (V7Y PCB).
Check that the cable between the PU PCB
option connector
to the 2nd tray unit is
normally connected.
Correct the
connections.
Square connector
connecting the
2nd tray unit to the
printer.
Check if any foreign material exists in the
connecting portion of the square connector.
Remove the foreign
material.
Square connector
connecting the
2nd tray unit to the
printer.
Is the terminals of the square connector
damaged?
Replace the
connector.
(14-2-3) Check the control signals
.
Check the control
signal that is output
from the PU PCB
to the 2nd tray unit
(V7Y PCB).
Check the control signal that is output from
the PU PCB option connector
.
pin-5: TXD (PU
2nd)
pin-3: RXD (2nd
PU)
Replace the PU
PCB.

Oki MC860 Specifications

Printing Specifications

print speed color	26 ppm
print speed black & white	33 ppm
time to first page color	10 seconds
time to first page black & white	9.5 seconds
print resolution	1200 x 600 dpi
processor	500 MHz PowerPC CPU
duty cycle	75, 000 prints per month

Copying Specifications

copy speed color	26 cpm
copy speed black & white	33 cpm
first copy out color	14.5 seconds
first copy out black & white	13 seconds
copy resolution	600 x 600 dpi

Scanning Specifications

scan type	Color and black & white
max scan area	11" x 17"
scan speed black & white	33 spm
scan speed color	26 spm
scan resolution	600 dpi

Fax Specifications

fax modem	33.6 Kbps Super G3
transmission speed	2 seconds/page
fax resolution	600 x 600 dpi
speed dial locations	500 locations
broadcast transmission locations	530 locations

Power and Acoustic Noise

power consumption peak	1, 300W
power consumption standby	160W Avg.
power save mode	≤25W
acoustic noise operating	54dB
acoustic noise standby	≤37dB

System Memory

standard imaging RAM	512 MB
max imaging RAM	768 MB
hard disk drive	40 GB

Weight and Dimensions

1-tray configuration dimensions	22.2" x 25.9" x 26.3"
2-tray configuration dimensions	33.3" x 30.2" x 44.5"
weight 1-tray configuration	149.9 lb
weight 2-tray configuration	200.6 lb
weight 3-tray configuration	211.6 lb