Paper Jam Detection - Xerox 7300B - Phaser Color Laser Printer Service Manual

Paper Jam Detection

The printer checks for a paper jam when the printer is powered on and during
printing. When a paper jam is detected, the printer immediately halts the printing
process. Below is a diagram of jam locations within the printer.
Media Jams occur in the paper path if the associated sensor does not turn ON within
a specified amount of time, meaning the jam occurs prior to reaching the sensor, or if
the sensor does not turn OFF within a specified amount of time, meaning the jam
occurs along the path of the sensor.
Misfeeds occur when the paper can not be loaded from the tray.
Paper size errors occur when the registration entrance sensor does not turn OFF
within a specified amount of time.
Paper
Exit
Duplex
Entrance
Sensor
Theory of Operation
Paper
Fuser
Tranfer
Exit Sensor
Duplex entry
Duplex
Duplex
Rear Sensor
Exit Gate
Sensor
MPT Entrance
Sensor
Transfer Belt
Entrance
Sensor
Duplex travel
Tray 1
Tray 2
Tray 3
Tray 4
Tray 5
Multi-Purpose
Tray (MPT)
Misfeed
from MPT
Registration
Entrance
Sensor
Misfeed from . . .
Duplex Unit
Tray 1
Tray 2
Tray 3
Tray 4
Tray 5
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