Xerox Phaser 7400 Service Manual

Error Messages and Codes 3-29
Jam Under Imaging Units
Paper transport jam on Transfer Unit belt. Media reached the Transfer Unit Entrance
Sensor, but did not reach the Media Slack Sensor on time.
Applicable Status Code:
Code TC1: Jam Under Imaging Units
Initial Actions:
■ Ensure that the Transfer Unit is free of obstructions and fully seated.
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Transfer Unit Motor, PL2.1.86
■ Transfer Unit, PL1.1.20
■ Media Slack Sensor, PL9.1.77
■ Registration Sensor Board, PL9.1.73
■ Imaging Units, PL1.1.23
■ Print Engine Registration (page 10-30).
■ Print Engine Motor Driver Board (4/6) (page 10-34)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the following for evidence of fault or
damage:
■ Transfer Unit
■ Media Slack Sensor Actuator
■ Transfer Unit Motor
Is there any damage or debris?
Replace any
damaged parts.
Go to Step 2.
2
Test the Media Slack Sensor.
Run the Service Diagnostics Paper Slack
test.
Does the sensor function correctly?
Go to Step 7. Replace the
sensor. If the error
persists, go to
Step
3.
3
Check all pins on the DSNS Harness for
continuity.
Is the harness conductive?
Go to Step 4. Replace the DSNS
Harness.
4
Check for +5 V to the Media Slack Sensor.
Disconnect DSNS from the Registration
Sensor Board.
Is there +5 V across DSNS-9 <=> ground?
Go to Step 6. Go to Step 5.

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