Xerox Phaser 7400 Service Manual

2-24 Phaser 7400 Color Printer Service Manual
Interlock Detection
If the Top Cover, Door A is opened, or the Waste Toner Reservoir is removed, an
Interlock Switch is opened cutting the +24V source to the HVPS. At the same time,
the CPU receives a signal indicating the Interlock Switch state, and displays the
appropriate error message.
Toner Detection
Each Imaging Unit contains an Agitation Gear and Agitation Bar. The Agitation Bar
moves toner delivered by the Toner Cartridge to the area above the Developer Roller.
Located at one end of the Agitation Bar is the Low Toner Sensor target.
The photo-reflective, Low Toner Sensor mounted on the Imaging Unit Sensor Board
detects the target at the end of the Agitation Bar and changes state in relation to light
reflected back from the target. As the toner level drops, the period of time the
Agitation Bar target remains at its highest point is reduced. This change in Agitation
Bar timing signals toner level changes.
OFF Time (Minimum Height) ON Time (Maximum Height)
Agitation Bar
Target Board
Low Toner
Sensor
s7400-173

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