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Lexmark C950 Service Manual

Lexmark C950
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Diagnostic aids 3-79
5058-030
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The media eject shaft assembly is driven by the media eject motor assembly to transfer media to the stacker
media bin.
After media is transferred to the stacker media bin, it is held by the clamp paddle attached to the media eject
shaft assembly.
From punch to upper media bin
The media to be ejected to the upper media bin is switched in the media path by the finisher diverter gate
located behind the punch and fed in the upper media transport roll assembly direction.
The finisher diverter gate is switched by the finisher diverter gate solenoid. While the solenoid is activated,
media is fed in the upper media transport roll assembly direction.
The two upper media transport roll assemblies driven by the motor (buffer/transport) feed media to the upper
media exit roll assembly top at the top of the finisher.
The upper media exit roll assembly top driven by the drive motor (exit) ejects the media to the upper media bin.
The upper media exit roll assembly decelerates after a specified period of time from the following trigger events.
Functions of sensors along the media path
Bridge unit assembly
• Sensor (bridge unit media entrance)
– A photo-interrupter sensor that detects whether media is fed from the printer to the bridge unit assembly.
– It turns high (+5 V dc) (light receiving) when media enters the bridge unit assembly.
• Sensor (bridge unit media exit)
– A photo-interrupter sensor that detects whether media passes through the bridge unit assembly.
– It turns high (+5 V dc) (light receiving) when media reaches this sensor, and turns low (0 V dc) when
media exits from the bridge unit assembly.
• Sensor (bridge unit top cover interlock)
– A photo-interrupter sensor that detects open/close of the bridge top cover assembly of the bridge unit
assembly.
– It turns high (+5 V dc) (light receiving) when the bridge top cover assembly opens.
Bridge unit assembly
Bridge media
entrance sensor
Transport rolls
Bridge exit sensor
Decurler roll

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Lexmark C950 Specifications

General IconGeneral
Print Resolution1200 x 1200 dpi
Duplex PrintingYes
Processor Speed1.2 GHz
ConnectivityEthernet, USB
Print TechnologyLaser
Print Speed50 ppm
Monthly Duty Cycle300000 pages
Recommended Monthly Page Volume5, 000 - 33, 000 pages
Memory1024 MB
Hard DriveOptional
Output Capacity500 sheets
InterfaceUSB 2.0
Media TypePlain paper, Card stock, Labels, Envelopes, Transparencies
Total Media Capacity5140 sheets
Media SizesLetter, Legal, A4, A5, Executive, Folio, Statement
Operating Systems SupportedWindows, Mac, Linux

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