Lexmark C950 Service Manual

Diagnostic aids 3-127
5058-030
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When open, the switch (top door interlock) is detected, printing operation is inhibited, and the 24 V supply to the
media feed lift motor and the transport motor is shut off. When open, the switch (HCF unit docking interlock) is
detected, and transfer of media from the HCF is inhibited.
Tray insertion detection
The sensor (HCF media tray set) checks whether the tray is properly set. This check is constant while the power
is on. Printing operation is inhibited if the sensor (HCF media tray set) off (tray is not present) is detected before
printing starts.
Functions of sensors used for status monitoring
• Switch (HCF top door interlock)—Detects open/close of the HCF top door. The on state of this switch
indicates the top door is closed.
• Switch (HCF unit docking interlock)—Detects the docking of the HCF with the printer. The off state of
this switch indicates that the HCF is separated from the printer. In this case, transfer of media is inhibited.
• Sensor (HCF media tray set)—Detects insertion of the HCF media tray into the HCF. The sensor turns on
when the HCF media tray is properly inserted. While it is off, media fed from the HCF medial tray is
inhibited.
Switch (HCF top door interlock)
Switch (HCF unit docking interlock)
Sensor (HCF media tray set)
HCF media tray

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