Xerox Phaser 7400 Service Manual

Theory of Operation 2-19
Sensor Functions
The following table lists the function of each sensor.
Sensor Functions
Sensor Function Sensor State
Top Output Tray
Stack Full Sensor
Detects the Top Output Tray stack height. On: not full
Off: full
Side Output Tray
Stack Full Sensor
Detects the Side Output Tray stack height. On: not full
Off: full
Side Output Tray
Detect Sensor
Detects whether the Side Output Tray is open or
closed.
On: open
Off: closed
Job Offset Home
Position Sensor
Detects the position of the Job Offset carriage. On: not home
Off: home
Job Offset Trailing
Edge Sensor
Detects the trailing edge of the media for the Offset
carriage.
On: media present
Off: media absent
Top Cover Interlock Detects the position of the Top Cover. On: open
Off: closed
Door A Interlock Detects the position of Door A. On: open
Off: closed
Door B Detect Detects the position of Door B. On: open
Off: closed
Door C Detect Detects the position of Door C for Trays 3 ~ 6. On: open
Off: closed
Door D Detect Detects the position of Door D. On: open
Off: closed
Door E Detect Detects the position of Door E. On: open
Off: closed
Waste Toner
Reservoir Detect
Switch
Detects the presence of the Waste Toner Reservoir. On: present
Off: absent
Fuser Exit Sensor Detects media at the Fuser Exit. On: media present
Off: media absent
Fuser Temperature Monitors the Fuser process temperature. Reference voltage
Media Slack Sensor Detects media slack at the Fuser entrance. On: slack
Off: no slack
Media Thickness
Sensor
Adjusts print parameters according to media
thickness.
Reference voltage
Temperature/
Humidity Sensor
Measures environmental conditions to calculate the
optimal transfer voltage.
Reference voltage
Tray 1 (MPT) Feed-
Out Sensor #1
Detects media leaving the Feed Rollers. On: media present
Off: media absent
Tray 1 (M PT) N o
Paper Sensor
Detects the absence of media in the tray. On: media present
Off: media absent
Tray 1 (MPT) Level
Sensor
Detects the Tray 1 (MPT) media supply. On: media present
Off: media absent

Xerox Phaser 7400 Specifications

General

Color	Yes
Print technology	Laser
Maximum resolution	600 x 1200 DPI
Time to first page (black, normal)	12 s
Print speed (black, normal quality, A4/US Letter)	40 ppm
Print speed (color, normal quality, A4/US Letter)	36 ppm
Storage media	HDD
Internal memory	512 MB
Processor model	PowerPC
Maximum internal memory	1 MB
Internal storage capacity	20 GB
Total input capacity	800 sheets
Maximum input capacity	3000 sheets
Paper tray 2 input capacity	350 sheets
Auto document feeder (ADF) input capacity	1650 sheets
Maximum print size	297 x 420 mm
Paper tray media types	Envelopes, Labels, Transparencies
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Letter (media size), Statement (140 x 216mm), Legal (media size)
Maximum ISO A-series paper size	A3
Power requirements	100-240V, 50/60Hz
Networking features	Fast Ethernet
Supported media weight(s)	270 g/m²
Maximum operating temperature range (T-T)	10 - 32 °C
Certification	FCC p.15 A, CE
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	-4 - 140 °F
Storage relative humidity (H-H)	10 - 95 %
Operating relative humidity (H-H)	20 - 80 %
Maximum duty cycle	150000 pages per month

Weight and Dimensions

Dimensions (WxDxH)	1438 x 623 x 975 mm