Functions Of Main Components; Media Tray Assembly; Front Media Tray Guide Assembly And Rear Media Guide; Media Tray End Guide - Lexmark W840 Service Manual

Functions of main components

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Media tray assembly

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Media feed unit assembly
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MPF
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Xerographics
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Fuser
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Drive
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Electrical components and rolls
Media tray assembly
It is necessary to adjust the front media tray guide assembly, rear media tray guide and media tray end guide of
the media tray assembly to match the media size.

Front media tray guide assembly and rear media guide

The front media tray guide assembly can be adjusted to different media sizes by moving the guides to the front
or rear. These guides come into contact with the media and hold it in position.
The rear media tray guide moves together with the front media tray guide assembly.

Media tray end guide

The media tray assembly is designed so it can adapt to the media length in the media feed direction by moving
the media tray end guide to the left or right.

Bottom plate

The force pushing up the bottom plate is transmitted by the driving force of the motor on the media feed unit
assembly to the lift up shaft through the gear (13/60 tooth) and sector gear (12 tooth). The bottom plate is
pushed up by the rotation of the lift up shaft, which causes the supplied media to come in contact with the pick
roll.
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Diagnostic aids