Oki MC860 Maintenance Manual

Oki Data CONFIDENTIAL
43967002TH Rev. 1
339 /
7. Troubleshooting
7.5.2.(10) ID unit Up/Down error (Service call 140 to 143)
(10-1) Error occurs when the ID unit moves down
Check item Check work
Action to be taken at NG
(10-1-1) Check the mechanical load during the Up movement
Mechanical load
during installation
and removal of the
ID unit
Check if abnormal heavy load is applied
when removing the ID unit.
Replace the ID
unit, or replace the
right/left side plate.
If any attempt of
using new ID unit
as a trial is going to
be made, be sure
to use the System
Maintenance Menu
FUSE KEEP MODE.
Greasing to the right
and left Up/Down
link levers
Check if the slant surface of the link lever is
coated by grease or not.
Apply grease.
Assembled
condition of the right
and left Up/Down
link levers
Check if any part exists or not in the vicinity
of link lever, that hampers movement of the
link lever.
Assemble them
correctly.
(10-1-2) Up/Down mechanism
Assemb
led
condition of
the peripheral
mechanism of the
link lever
Is the mechanism assembled so that the
link lever is connected to the planetary
driving gear?
Assemble them
correctly.
Right and left link
levers
Check if the link lever is set in the correct
position that enables the specified
engagement of gears. (Check if the link
lever is set in the wrong position that
results in the wrong engagement of gears
by several teeth.)
Assemble them
correctly.
Check item Check work
Action to be taken at NG
(10-1-3) Sensor check
Up/Down sensor
lever (unified
structure with the
left link lever)
Check if shape and movement of the
sensor levers have any abnormality or not.
Replace the left link
lever.
Up/Down sensor Confirm that the sensor signals are
normally detected by using the SWITCH
SCAN function of the self-diagnostic mode.
Check if the SCAN state changes or not
when the incoming light is interrupted/
passed by using a piece of paper or the like
for the transparent type sensor.
High-voltage PCB
replacement
(10-2) Error occurs when the ID unit moves down
Check item Check work
Action to be taken at NG
(10-1-1) Check the mechanical load during the Up movement
Mechanical load
during installation
and removal of the
ID unit
Check if abnormal heavy load is applied
when removing the ID unit.
Replace the ID unit,
or replace the right/
left side plate.
Greasing to the right
and left Up/Down
link levers
Check if the slant surface of the link lever is
coated by grease or not.
Apply grease.
Assembled
condition of the right
and left Up/Down
link levers
Check if any part exists or not in the vicinity
of link lever, that hampers movement of the
link lever. (Obstacles such as cable and
others)
Assemble them
correctly.

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