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Xerox PHASER 7500 Service Manual

Xerox PHASER 7500
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3-64 Phaser 7500 Printer Service Manual
Error Messages and Codes
System Errors
Heat Roll STS Disconnect Fail
The open circuit AD value of the Rear Control Thermistor was detected 3 times in a
row.
Applicable Chain-Link Code
• 010-311: Heat Roll STS Disconnection Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
â–  Fuser Assy, PL7.1.1
â–  MCU PWB, PL18.3.6
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Check the resistance.
Turn Off the power and remove the
Fuser Assembly.
Measure the resistance between
DP600 pin-A6 and DP600 pin-A5.
Is the resistance infinite?
Replace the
Fuser Assembly
(page 8-67).
Go to step 2.
2 Check the paper feed rolls
Check the following connections for
open circuits, short circuits, and poor
contacts.
â–  Between DJ600-A2 and J431-12
â–  Between DJ600-A3 and J431-11
Is it conducting properly?
Replace the
MCU PWB
(REP 18.12,
page 8-202).
Repair the
sections that
have short
circuits and
poor contacts

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Xerox PHASER 7500 Specifications

General IconGeneral
Max Print Resolution1200 x 1200 dpi
Monthly Duty Cycle150, 000 pages
Standard Paper Capacity550 sheets
Duplex PrintingOptional
Standard Memory256 MB
Network Connectivity10/100/1000Base-T Ethernet
Supported Operating SystemsWindows, Mac OS, Linux
Max Paper Capacity2, 100 sheets
ConnectivityUSB 2.0, Ethernet
PDLPostScript 3, PCL 6, PDF
Print SpeedUp to 35 ppm

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