Xerox Phaser 3140 Service Manual

2-16 Phaser 3140/3155/3160 Printer Service Manual
Theory of Operation
Sensor Input Circuit
Paper Empty Sensing
The Paper Empty (width) Sensor on the Power Supply detects the state of paper
empty and the state of narrow paper width. If the Paper Empty sensor fails to
detect paper existence, it can mean that the Paper Tray is empty, or that narrow
paper is installed.
When the print job comes to the CPU, the pickup action is performed regardless of
a paper empty condition. If the paper comes through to the Feed Sensor, the CPU
recognizes the use of narrow paper, if not, the paper empty state is recognized and
the red LED on the Control Panel is illuminated.
Manual Feed Sensing
Through the operation of an actuator on the frame, the Manual Feed Sensor
(photo interrupter) detects the existence of paper. The CPU recognizes paper in
the manual feeder, and feeds it into the printer.
Paper Feeding/With Print Cartridge Sensing
When media passes the Feed Sensor actuator, the Feed Sensor sends the feed
event to the CPU. If the Feed Sensor does not detect media after a predetermined
time, a Jam0 state occurs.
Whether the Print Cartridge is inserted or not is detected by CRUM. After the
cartridge is mounted, the sub- CRUM reads the print cartridge information from
contact with CRUM involved in print cartridge. If the Print Cartridge is invalid, the
red LED on the Control Panel illuminates.
s3160-142
Output Bin Full Sensor
Paper Exit Sensor
Paper Empty Sensor
Paper Feed Sensor
Cover Open Sensor
Manual Feed Sensor
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Xerox Phaser 3140 Specifications

General

Color	No
Maximum resolution	600 x 1200 DPI
Time to first page (black, normal)	10 s
Print speed (black, normal quality, A4/US Letter)	18 ppm
Internal memory	8 MB
Maximum internal memory	- MB
Sound power level (standby)	26 dB
Sound pressure level (printing)	50 dB
Total input capacity	250 sheets
Total output capacity	80 sheets
Maximum duty cycle	10000 pages per month
Page description languages	GDI
Maximum print size	210 x 297 mm
Media weight (tray 1)	60 - 163 gsm
Paper tray media types	Plain paper
ISO A-series sizes (A0...A9)	A4, A5
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Mac compatibility	Yes
Custom media sizes	76 x 127 - 216 x 356 mm
Compatible operating systems	Windows 2000/XP/2003, Vista, Mac OS
Power consumption (standby)	60 W
Power consumption (printing)	360 W
Display	-
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Dimensions (WxDxH)	360 x 389 x 230 mm