Printer Paper Path Sensors - Lexmark M52 Series Service Manual

Printer paper path sensors

# Sensor
1 Sensor (paper size)
2 Sensor (tray 1 paper present)
3 Sensor (pick position)
4 Sensor (pick)
5 Sensor (tray 1 pass‑through)
6 Sensor (MPF paper present)
7 Sensor (input)
8 Sensor (fuser exit)
9 Sensor (narrow media)
Note: This part is found in hot roll fusers
only.
10 Sensor (exit)
11 Sensor (duplex path)
Functions
Detects the position of paper guides for determining size.
Detects the presence or absence of paper on the tray.
Detects if the pick roller is in position to pick.
Detects the paper as it is picked and fed to the printer.
Detects the paper fed from optional trays as it enters the printer.
Detects the presence or absence of paper on the MPF tray.
Detects the paper as it passes the transfer roller.
Detects the paper as it passes the fuser.
Detects if the paper width is narrow.
Detects the paper as it exits onto the bin.
Detects the paper as it travels the duplex paper path.
Theory of operation
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