3-54 Phaser 7500 Printer Service Manual
Error Messages and Codes
Exit Sensor 1 On Jam
The Fuser Exit Sensor does not turn On within the specified time after the Regi
Clutch On.
Applicable Chain-Link Code
• 077-106: Exit Sensor 1 On Jam
Initial Actions
• Check the paper path for debris.
• If the problem persists, follow the procedure below.
1. Check the paper transportation failure due to debris/ burrs on the paper path.
2. Check each Takeaway Roll and Pinch Roll for contamination, wear, and
rotation failure.
3. Check the Regi Roll and Pinch Roll for contamination, wear, and rotation
failure.
4. Check the 2nd BTR for contamination, wear, and rotation failure.
5. Check the Fuser for wound up, stuck paper.
6. Check each Takeaway Roll Drive Gear for wear and damage.
7. Check the Regi Roll Drive Gear for wear and damage.
8. Check the 2nd BTR Contact Retract Drive Gear for wear and damage.
9. Check the Fuser Drive Gear for wear and damage.
10. Is paper used out of specification (refer to “Paper and Tray Specifications” on
page 1-19?
11. Check the Fuser Exit Sensor for contamination, improper installation, and
Actuator operation failure.
12. Perform the Fuser Exit Sensor test in Diagnostics.
13. Check the connection between the Fuser Exit Sensor J192 and the MCU PWB
J431 for open circuit, short circuit, and poor contact.
14. Perform the Main Motor test in Diagnostics.
15. Perform the 2nd BTR Contact Retract Motor test in Diagnostics.
16. Perform the Fuser Drive Motor test in Diagnostics.
17. Perform the Takeaway Clutc h test in Diagnostics.
18. Perform the Registration Clutch test in Diagnostics.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Fuser Assy, PL7.1.1
■ MCU PWB, PL18.3.6
■ Motor Drive PWB, PL18.3.7