Xerox Phaser 7400 Service Manual

Reference A-25
Execute Thickness Calibration - Thickness Calibration: Engine is prepared for calibration run,
then media is picked from the MPT. Cycle power to the printer if repeated failures are
encountered.
Test Fault
Cycle Printer Power Now
Media Feed Sheet n
Thickness Calibration Passed / Failed
Adjusting page 1-4 to nnn um
Current Value = nnn
Unexpected result requires reboot.
<Press Back or Cancel to abort>
This indicates that setting the page
thickness is proceeding, showing
current value relative to target
value. Value is set to the same
target value for each of the four
pages. After adjustment completes,
feeding of media and automatic
measurement begins.
Thickness Calibration Results - Thickness Calibration: Results from calibration run during
this power on session. If result indicates failure, reboot, re-enter diagnostics and try again.
Curr Tray1 Thick = nnn um
No extended data to display
- or -
Cal. Result: Passed / Non-Paper ADC
Error / Thickness Error / Slant Error /
Sensor ADC Error / Sensor Failure /
Unknown
<only when test failed>
<Press Down for more data>
<Press Help(?) for help>
<Press Back or Cancel to exit>
NOTE: The next data screens are information screens. While viewing the
data, press Help(?). Press Help(?) again to see data. <Press Back
or Cancel to exit>. The value of Curr Tray 1 (MPT) Thick will be zero
until re-entry into this test.
Paper Thickness: 1=nnn um
2=nnn um 3=nnn um CHK=nnn um
<Press Down for more data>
Measured Paper Thickness in
microns.
<Press Help(?) for help>
<Press Back or Cancel to exit>
Calc. Values: (mV/um)
1=n.n 2=n.n 3=n.n AVE=n.n
<Press Down for more data>
Calculated sensor values, where
1.40mV/micron is the standard
sensivity value.
<Press Help(?) for help>
<Press Back or Cancel to exit>
No Paper Samples: 1=nnV, 2=nnV,
3=nnV, CHK=nnV
Paper Samples: 1=nnV, 2=nnV,
3=nnV, CHK=nnV,
<Press Down for more data>
Measured samples without and
with media present in sensor. No-
Paper Samples = 3.33V.
<Press Help(?) to toggle display>
<Press Back or Cancel to exit>
Service Diagnostics Tests and Utilities (Continued)
Menu Item Front Panel Display Results Functional Definition

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