Phaser 7500 Printer Service Manual 3-77
Error Messages and Codes
Illegal Fuser
An invalid fuser (from a different printer or a different voltage rating) has been
installed.
Applicable Chain-Link Code
• 010-341: Illegal Fuser
Initial Actions
• Replace the Fuser (REP 7.1, page 8-67).
• If the problem persists, follow the procedure below.
1. Check the following:
• The Fuser Assembly for improper installation.
• The Drawer Connector between the Fuser Assembly and the Main Unit
(DP/DJ600) for broken/ bent pins, debris, burns, and etc.
• The connection between the Fuser Assembly DJ600 and the MCU PWB
J431 for open circuit, short circuit, and poor contact broken/ bent pins,
debris, burns, and etc.
• The connection between the Fuser Assembly J600 and the Main LVPS J31
for open circuit, short circuit, and poor contact.
• The connection between the MCU PWB J414 and the Main LVPS J530 for
open circuit, short circuit, and poor contact.
2. If no problems are found, replace the following parts in sequence:
•Main LVPS (REP 18.7, page 8-194)
• MCU PWB (REP 18.12, page 8-202)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Fuser Assy, PL7.1.1
■ Main LVPS, PL18.1.11
■ MCU PWB, PL18.3.6
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