Table 7-2 Alphabetical printer error messages (continued) PRINTING REGISTRATION PG Description: The registration page is being printed. The printer returns to the READY state upon completion of this page. Action: No action required. PRINTING LASERJET DEMO (4500) -or- PRINTING DEMONSTRATION (4550) Description: The demo page is being printed. The printer returns to the READY state upon completion of this page. Action: No action required. PRINTING LASERJET DEMO 2 (4500 only) Description: The demo page is being printed. The printer returns to the READY state upon completion of this page. Action: No action required. PRINTING ACCESSORIES Description: The accessories page is being printed.
The printer returns to the READY state upon completion of this page. Action: No action required. PRINTING COLOR GUIDE Description: The color guide page is being printed. The printer returns to the READY state upon completion of this page. Action: No action required. PROCESSING JOB Description: The printer is processing the current job. Action: No action required. READY Description: The printer is online and ready to receive data, and no status or device attendance messages are pending. Action: No action required. REINSTALL TRANSFER BELT Description:
This message occurs if you do not have the intermediate transfer belt installed in the printer or if the home position marks (on the ITB) are not detected by sensor PS5. Action: 1. Check SW1 (Figure 7-31) for correct operation and make sure the cables are connected. 2. Verify that the ITB is installed in the printer. Note The intermediate transfer belt must be rotating before PS5 is able to detect the “home positioning” marks on the ITB. Both the ITB and the imaging drum are driven by the drum motor (M4). 3. If the ITB is installed and seated properly, verify that PS5 is not damaged. PS5 is located on the ITB assembly (see Figure 7-25).
If the sensor appears damaged replace the entire ITB assembly. 4. Clean PS5 (see Figure 7-25 for its location). 5. Verify all wiring within the ITB drawer. Note the connection on the ITB assembly (located on the front, lower, left-hand corner of the assembly). When the drawer is closed, the connector “mates” with a receptacle connector on the drawer. Verify the connector and all wiring are in good condition. Make sure there is no paper in the connector at the base of the drawer. 6. Verify that the drum motor (M4) is rotating both the imaging drum and the ITB. Place the printer in diagnostic mode and run the drum test to verify drive spindle movement for both the imaging drum and ITB. 7.
If the imaging drum is not rotating, verify the imaging drum connector is firmly seated into the connector J204 of the developing PCB. C7085-90921 Chapter 7 Troubleshooting 223