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Jam detection
The product uses the following sensors to detect the presence of media and to check for jams. If media
does not reach or pass each sensor within a specified time, the ECU determines that a jam has occurred
and alerts the formatter.
NOTE: To find the following components, see Photo sensors and switches on page 34.
PS2; fuser delivery sensor
PS4; face-down tray media-full sensor
PS215; Top-of-Page (TOP) sensor
PS225; media width sensor
PS502; duplex media-feed sensor (duplex models only)
PS8008; paper feeder media-feed sensor
NOTE: PS8008 is used in Tray 3 and Tray 4.
The product detects the following jams:
Pickup delay jam
Pickup stationary jam
Delivery delay jam
Delivery stationary jam
Fuser wrapping jam
Door open jam
Residual media jam
Duplex repickup jam (duplex models only)
40 Chapter 1 Theory of operation ENWW