C7085-90921 Chapter 7 Troubleshooting 223
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.
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).
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.
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.
Table 7-2 Alphabetical printer error messages (continued)
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