Lexmark C950 Service Manual

3-122 Service Manual
5058-030
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High capacity feeder theory of operations
Media feeding
Outline
The HCF feeds media from the tray to the printer through the HCF media feed unit assembly and the HCF media
transport roll assembly.
HCF media feed unit assembly
The pick roll feeds media from the tray. The feed roll and the separation roll feed media from the pick roll to the
HCF media transport roll assembly.
Rollers are driven by the media feed lift motor on the media feed unit assembly at prescribed timings.
The media fed by the feed roll and separation roll passes through the sensor (pre-feed).
The sensor (pre-feed) detects the presence of media fed from the tray.
The sensor (pre-feed) controls the HCF media feed lift motor speed and on/off operation of the HCF pick
solenoid assembly.
HCF media transport roll assembly
This HCF media transport assembly roll transfers media fed from the HCF media feed unit assembly to the
printer.
The HCF media transport roll assembly is driven by the transport motor installed on the rear side.
The media fed with the HCF media transport roll assembly passes through the sensor (tray 5 feed-out).

Lexmark C950 Specifications

General

Print Resolution	1200 x 1200 dpi
Duplex Printing	Yes
Processor Speed	1.2 GHz
Connectivity	Ethernet, USB
Print Technology	Laser
Print Speed	50 ppm
Monthly Duty Cycle	300000 pages
Recommended Monthly Page Volume	5, 000 - 33, 000 pages
Memory	1024 MB
Hard Drive	Optional
Output Capacity	500 sheets
Interface	USB 2.0
Media Type	Plain paper, Card stock, Labels, Envelopes, Transparencies
Total Media Capacity	5140 sheets
Media Sizes	Letter, Legal, A4, A5, Executive, Folio, Statement
Operating Systems Supported	Windows, Mac, Linux