2-2 Phaser 3140/3155/3160 Printer Service Manual
Theory of Operation
Operational Overview
The Phaser 3140/3155/3160 is a monochrome printer that has a single-pass laser
design architecture, which offers mono print speed up to 24 pages per minute
(ppm), and resolution up to 1200 x 1200 dots-per-inch (dpi) image quality. The
printer provides a USB interface for all models, and the 3160N supports 10/100
Base-TX ethernet.
System Overview
The location of the printer’s primary functional components is shown in the
following illustration.
s3160-065
Output Bin Full Sensor
Paper Exit Sensor
Paper Empty Sensor
Tray
Paper Feed Sensor
Cover Open Sensor
Manual Feed Sensor
Transfer Roller
Manual Feed Slot
Print Cartridge
Laser Unit
Fuser
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