Lexmark W840 - Layout of Media Transport Path; Functions of Main Components; Drive Motor

1-36 Options Service Manual
4024-XXX
Layout of media transport path
The following figure illustrates the main components directly associated with the media path and transport with
the optional exit 2 installed.
Functions of Main Components
When the optional exit 2 is installed on the top of the printer, offset stocking of media is available with the printer.
Drive motor
The drive motor is a stepping motor driving the transport roll assembly and media exit roll assembly. Forward
rotation of this motor drives these rollers to feed media to the exit 2 standard bin. Reverse rotation of this motor
drives the transport roll assembly to feed media to the optional duplex.
Duplex media
transport roll
ASM
MPF
MPF Transport
pinch roll
MPF Transport
roll ASM
2TM/TTM Media
transport roll ASM
Media transport
pinch roll
Separation roll
Feed roll
Duplex media
center transport
roll ASM
Duplex media
transport pinch roll
Duplex media
transport roll
ASM
MPF pick roll
Registration roll
ASM
Pick roll
Registration pinch
roll
Drum
Transfer roll ASM
Heat roll
Exit 1 media exit pinch rolls
Exit 1 media exit roll ASM
Exit 2 media transport roll ASM
Exit 2 media exit pinch rolls
Exit 2 media exit roll ASM
Pressure roll
Option tray 2
module
Option exit 2
Option duplex
Duplex media
transport roll
ASM
MPF
MPF Transport
pinch roll
MPF Transport
roll ASM
2TM/TTM Media
transport roll ASM
Media transport
pinch roll
Separation roll
Feed roll
Duplex media
center transport
roll ASM
Duplex media
transport pinch roll
Duplex media
transport roll
ASM
MPF pick roll
Registration roll
ASM
Pick roll
Registration pinch
roll
Drum
Transfer roll ASM
Heat roll
Exit 1 media exit pinch rolls
Exit 1 media exit roll ASM
Exit 2 media transport roll ASM
Exit 2 media exit pinch rolls
Exit 2 media exit roll ASM
Pressure roll
Option tray 2
module (2TM)
Option exit 2
Option duplex
Transport roll ASM
TRAY 3
TRAY 4