Did this site save (or help earn) you money? Say thanks with a small donation.

The TWI Designjet Documents library presented here as a courtesy  of   ComputerCareOnline.com   The owners of this website have no affiliation to Hewlett Packard nor do we claim to represent HP in any way shape or form.    Return to TWI Documents Library Index Page

HP Designjet 5000 and 5500 Series Printers - TWI: Printhead Rejection Issues

	Parts required (part numbers are subject to change)
	Troubleshooting steps

KRS document number: BPP90171

Last Updated: 01-Oct-2002

Minimum skill level: 2

The carriage does not accept one or more of the printheads. Typical causes are dirty contacts on the printheads or carriage, defective printhead(s), or a defective carriage. Follow the steps listed below to determine the actual cause of the error and to replace the necessary parts.

Parts required (part numbers are subject to change)

Part description	Models - C6090A/V, C6091A/V, Q1251A/V, Q1252A/V	Models - C6095A/V, C6096A/V, Q1253A/V, Q1254A/V
Trailing Cable kit (Required)	Q1251-67801	Q1253-60019
Carriage (Required)	C6090-60281 (5000 series) Q1251-60070 (5500 series)	C6090-60281 (5000 series) Q1251-60070 (5500 series)
Printheads, Dye (Optional)	C4950A (black), C4951A (cyan), C4952A (yellow), C4953A (magenta), C4954A (Lt. cyan), C4955A (Lt. magenta)	C4950A (black), C4951A (cyan), C4952A (yellow), C4953A (magenta), C4954A (Lt. cyan), C4955A (Lt. magenta)
Printheads, UV (Optional)	C4960A (black), C4961A (cyan), C4962A (yellow), C4963A (magenta), C4964A (Lt. cyan), C4965A (Lt. magenta)	C4960A (black), C4961A (cyan), C4962A (yellow), C4963A (magenta), C4964A (Lt. cyan), C4965A (Lt. magenta)

NOTE: If Removal and Installation instructions are needed for reference during any repairs performed, refer to the 5000 and 5500 Series Service Manual available on the Computer Care Web site for review or download.

Troubleshooting steps

If parts are replaced or fixed in any of the steps listed below, attempt to verify printer functionality by turning the printer on and printing internal test prints. If functionality is verified, no additional parts should be replaced.

1. Turn the printer on.
2. Allow printer to complete initialization.
3. With the printhead icon highlighted, press ENTER.
4. Select Replace Printheads and press ENTER.
5. If the message "Printheads still functional" appears, select Yes to continue testing the printheads.
6. Open the top cover.
7. Open the carriage cover and remove all of the printheads.
8. Turn the printer off.
9. Clean the electrical contacts on the carriage and the printheads using a lint-free cloth dampened with water.
10. Allow the contacts to dry.
11. Reinstall the printheads and close the carriage cover.
12. Close the top cover.
13. Turn the printer on and attempt to verify functionality, as instructed in Step 19.
14. If the error reappears, replace the affected printhead(s).

NOTE: If the printhead error icon is a question mark, each printhead will have to be tested separately, as the printer is not sure which printhead is causing the problem.

15. Following replacement of the suspect printhead(s), attempt to verify functionality (Step 19).
16. If the problem persists following, replace the carriage and trailing cable (refer to pages 8-36 to 8-46 of the service manual).
17. Following replacement, turn the printer on.
18. Make sure the printhead alignment completes successfully and that no error messages appear on the front panel.
19. Print a troubleshooting plot (as instructed below) to ensure the print quality is acceptable.
1. On the front panel, select the printer icon and press ENTER.
2. Select Utilities and press ENTER.
3. Press the UP and ENTER buttons simultaneously.
4. Select Yes to enter the Service Menu.
5. Select Service Utilities and press ENTER.
6. Print pages 1, 2, 3, 4 and 5 to prove printer functionality.

Copyright Hewlett-Packard Co. 2002
This information is subject to change without notice and
is provided "as is" with no warranty.
Hewlett-Packard shall not be liable for any direct,
indirect, special, incidental or consequential damages
in connection with the use of this material.

	Web computercareonline.com