Lexmark MS823 Service Manual

The mailbox delivers print jobs to multiple bin destinations and allows the user to segregate the printed output
to an assigned bin. Rollers along the paper path control the movement of the paper depending on the
destination bin.
Mailbox paper path sensors
# Sensor Function
1 Sensor (mailbox pass‑through 1) Detects the paper position along the mailbox entrance.
2 Sensor (mailbox pass‑through 2) Detects the paper position along the middle rear door area.
3 Sensor (mailbox bin 1 paper present) Detects if paper is on bin 1.
4 Sensor (mailbox bin 2 paper present) Detects if paper is on bin 2.
5 Sensor (mailbox bin 3 paper present) Detects if paper is on bin 3.
6 Sensor (mailbox bin 4 paper present) Detects if paper is on bin 4.
7 Sensor (mailbox bin 1 full) Detects if bin 1 is full.
8 Sensor (mailbox bin 2 full) Detects if bin 2 is full.
9 Sensor (mailbox bin 3 full) Detects if bin 3 is full.
10 Sensor (mailbox bin 4 full) Detects if bin 4 is full.
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Theory of operation
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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