Lexmark 5021-0XX manual Electronic components, Sensor locations

5021-0XX

Electronic components

Sensor locations

Name	Code	Function
Paper size sensor	PSU	Detects paper size.
Registration	PT1	Detects whether paper is fed from paper
sensor		drawer.
Fuser exit sensor	PT2	Detects when paper exits from rear cover
		assembly.
Tray empty sensor	PEU	Detects if paper is loaded in paper
		drawer.
OHP sensor	OHP	Detects if transparencies are loaded in
		paper drawer.
OPC marker	PBS	Detects connecting position of OPC belt.
sensor
Toner empty	TPD/TTR	Detects if any toner cartridge is empty.
sensor

5-4Service Manual