Lexmark W840 - Main Components; Switch (2 TM;TTM Left Door Interlock); Sensor (Tray 3 Feed-Out); Sensor (Tray 4 Feed-Out)

1-16 Options Service Manual
4024-XXX
Main components
Switch (2TM/TTM left door interlock)
The left door interlock switch detects open/close of the left door assembly.
Sensor (tray 3 feed-out)
The sensor (tray 3 feed-out) detects media fed from the tray 3 or tray 4.
Sensor (tray 4 feed-out)
The sensor (tray 4 feed-out) detects media fed from the tray 4.
2TM/TTM media transport roll assembly
The 2TM/TTM transport roll assembly feeds media from the tray 3 or tray 4 to the printer.
2TM/TTM controller card assembly
The 2TM/TTM controller card assembly, which contains a CPU, controls media feed in the tandem tray module
upon receiving a command from the printer engine card assembly and sensor/switch information.
Sensor (tray 3 feed-out)
Switch (2TM/TTM left door interlock)
2TM/TTM media
transport roll ASM
Sensor (tray 4 feed-out)
Front