Oki MC860 Maintenance Manual

43967002TH Rev.1
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Oki Data CONFIDENTIAL
2. Theory of Operation
2.3.2 Document table structure
2.3.2.1 Overview
The book scanner unit consist of the book scanner scanning glass (pain), the book scanner
optical scanning block (Carriage A ASSY, Carriage B ASSY, scanner frame ASSY and the
book scanner drive block.)
Detection of document size is executed when the BIS sensor is ON. Detection of the closed
status of the pressure plate (book cover) is executed by turning the APS sensor to ON. The
lamp (cold-cathode tube) is located on top of the carriage A. The light irradiated by the cold-
cathode tube enters the carriage A => carriage B => lens in this order and reaches the CCD
device. The optimal focal length is maintained by the scanning that maintains a specified
distance between the carriage A and the carriage B.
2.3.2.2 Exposure block
1. Reflect tape
The document such as book does not contact completely with the glass surface.
Therefore, the joining areas are copied in black. In order to reduce this adverse effect,
the light from the lamp is reflected by the reflect tape before it is irradiated to the
document.
2. La
mp
Cold-cathode tube is used to irradiate light to document.
3. Mirror A
The reflected light from document is again reflected to the mirror B.
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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