Lexmark MS823 Service Manual

SHPF HPU transport drive
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1 Transport roller 1
2 Sensor (light array)
3 Transport roller 2
4 Sensor (HPU leading edge)
5 Sensor (HPU trailing edge)
6 Motor (HPU transport)
7 Hole punch box auger
Transport rollers receive the paper entering the
finisher,
and then move the paper in the positions where hole
punching may be required. The paper is detected by the sensor (HPU leading edge) as it passes between the
two transport rollers. Before the paper is fed out by the exit rollers, it is detected by the sensor (HPU trailing
edge). The sensor (light array) also detects the paper to ensure proper hole punching.
The motor (HPU transport) not only drives the transport rollers, but the auger in the hole punch box as well.
When the hole punch box auger rotates, the chad inside the box is more evenly distributed to maximize the
container capacity.
4064
Theory of operation
904

Lexmark MS823 Specifications

General

Print Technology	Monochrome Laser
Print Speed	Up to 65 ppm
Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	Up to 300, 000 pages
Recommended Monthly Page Volume	5, 000 - 75, 000 pages
Processor Speed	1 GHz
Standard Memory	512 MB
Connectivity	USB, Ethernet
Standard Input Capacity	650 pages
Maximum Paper Input	4, 400 sheets
Media Types Supported	Plain paper, Card stock, Envelopes, Labels, Transparencies
Operating System Compatibility	Windows, Linux
Duplex Printing	Automatic