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 1000 Series Printers - TWI: System Error 0B0007

	Tools required
	Parts required (part numbers are subject to change)
	Troubleshooting steps
	Calibrations backup
	Multi-Roll feeder disassembly
	Removing the Multi-Roll feeder left side cover
	Removing the Multi-Roll feeder right side cover
	Installation of covers

KRS document number: BPP90068

Last updated: 07-Aug-2002

Minimum skill level: 3

System error 0B0007 is generated when printer is unable to detect the vacuum fan. Causes of this error can include the Firmware, the Vacuum fan, or the Electronics module. Follow the steps listed below to accurately troubleshoot the issue, and replace the appropriate parts.

NOTE: If the printer is installed on a Multi-Roll feeder accessory, some Multi-Roll disassembly is required to gain access to the printer. Instructions for Multi-Roll disassembly are listed at the bottom of this document for reference.

Tools required

• Industry standard tool set
• Ohm meter

Parts required (part numbers are subject to change)

Part Description	C6074A	C6075A	C6074B	C6075B
Firmware DIMM (Required)	C6074-60350	C6075-60249	C6074-60422 or C6074-60469	C6074-60295 or C6075-60282
Vacuum Fan Assembly (Required)	C6072-60159	C6072-60159	C6072-60159	C6072-60159
Electronics Module (Required)	C6072-69146	C6072-69146	C6074-69283	C6074-69283
Electronics Module Fuse (Required)	C6074-60307	C6074-60307	C6074-60307	C6074-60307
Trailing Cable (Optional) see note below	C6072-60196	C6074-60418	C6074-60418	C6074-60418

NOTE: If the printer is an "A" model, a Trailing cable must be sent with the rest of the parts listed.

NOTE: The fuse being sent should be used if a poor Trailing cable connection or a shorted Trailing cable blows the fuse on the Electronics module. Make sure to properly connect the Trailing cable or replace a shorted Trailing cable before installing the new fuse.

Troubleshooting steps

If any of the troubleshooting steps listed below solve the problem, attempt to verify printer functionality by printing several internal prints. If functionality is verified, no additional parts should be replaced.

1. Turn on the printer.
2. Observe if error appears during initialization.
3. If the error appears during initialization continue with step 8.
4. If the printer prompts READY following initialization, open the printer window.
5. Observe if error appears when the window is open.
6. If no error appears during initialization or when the printer window is open, attempt to verify printer functionality.
7. If error appears when window open, continue with the remaining steps.
8. Turn the printer off using the main power switch located on the back of the printer.
9. Remove the DIMM cover plate at back of printer.
10. Remove and reseat each DIMM card.
11. Turn the printer on, and repeat steps 1-8.
12. If the error has been eliminated, replace the DIMM cover and run several internal prints to verify printer functionality.
13. If the error appears, turn the printer off and disconnect and reconnect the Vacuum fan (the yellow connector found at the left edge of the Electronics module). Repeat steps 1-8, if problems persist continue with the remaining steps.
14. Replace the Firmware DIMM and repeat steps 1-8. If problems persist continue with the remaining steps.
15. If error continues after replacing the Firmware, listen for the Vacuum fan. If the fan cannot be heard replace the Vacuum fan (refer to pg. 8-11 of the 1000 Series Service Manual) and repeat steps 1-8.

NOTE: If removal and installation instructions are needed for reference during any repairs performed, refer to the 1000 Series Service Manual available on the Partner Care Web site for review or download.

16. If fan noise is audible continue with step 17.
17. If the error continues after replacing the Firmware and replacing/verifying the Vacuum fan, replace the Electronics module (refer to pg. 8-25 of the 1000 Series Service Manual for "A" Models) (Refer to supplement for Removal and replacement of Main PCA board in "B" Models). If printer is an "A" model, replace the Trailing cable during the Electronics module replacement.

NOTE: Check the Trailing cable continuity with a multi-meter. The cable test points should show no continuity, which translates to a very high resistance on the multi-meter. Also check fuses F7 and F8 on the Electronics module before powering the printer On with new E-mod (fuses F7 and F8 should measure about the same resistance when compared to each other.

18. Check both rows of vacuum holes for clogging. Unclog any holes with a straightened paperclip or other appropriate tool.

NOTE: Clogging of the vacuum holes will not induce this error, but may cause premature failure of components due to overheating.

19. Perform a Calibrations Backup service calibration (listed below).
20. Run several internal prints to verify printer functionality.

Calibrations backup

NOTE: Printer menu mode must be set to Full to access the Service Tests submenu. To verify, at the Ready prompt, scroll to the PRINTER SETUP icon, and press ENTER. Use the ARROW keys to scroll to the Utilities menu and press ENTER. Using the ARROW keys scroll to Menu Mode =. Select Full (if needed) and press the BACK key to return to the main menu.

1. Scroll to the Utilities menu, and press ENTER.
2. Simultaneously press the UP and ENTER keys.
3. Use the ARROW keys to scroll to the Service Calibrations menu and press ENTER.
4. In the Service Calibrations menu, scroll to 7 Calibrations Backup and press ENTER.
5. Select Electronics Module repl, and press ENTER.
6. Select Accept to continue the Calibrations Backup.
7. Press ENTER when Calibrations Backup is complete.

Multi-Roll feeder disassembly

Only remove the corresponding side cover of the Multi-Roll that requires maintenance. For example, only remove the right side cover of Multi-Roll if only the right end cover of the printer requires removal to complete the necessary service. Follow the steps listed below to gain access to the printer to complete the necessary service.

NOTE: Only ONE CE needs to be dispatched to perform service on a 1000 Series printer attached to a Multi-Roll feeder.

Removing the Multi-Roll feeder left side cover

WARNING: Turn both the printer and the Multi-Roll feeder Off and disconnect them from the power source prior to performing any maintenance.

1. Open the left door of the Multi-Roll feeder.
2. Loosen the two screws that secure the left door to the Multi-Roll feeder (see Figure 1).

Figure 1: Screws to remove.

3. Remove the left door.

CAUTION: Be careful not to break the door when removing it.

4. Remove the two star screws (Orange) that secure the Front top-cover to the Multi-Roll feeder (see Figure 2).

Figure 2: Two star screws to remove.

5. Remove the Multi-Roll feeder top cover.
6. Remove six T-20 screws that secure the left Side cover to the Multi-Roll feeder from the front (see Figure 3).

Figure 3: Six screws to remove.

7. Remove the seven T-20 screws that secure the left side cover to the Multi-Roll feeder from the rear (see Figure 4).

Figure 4: Seven screws to remove.

8. Remove the left side cover (see Figure 5).

Figure 5: Removing the left side cover.

Removing the Multi-Roll feeder right side cover

WARNING: Turn both the printer and the Multi-Roll feeder off and disconnect them from the power source prior to performing any maintenance.

1. Remove the Right door and Front top cover from the Multi-Roll feeder (follow steps 1 through 5 of the previous section and remove the right door instead of the left).
2. Remove Six T-20 screws that secure the right side cover to the Multi-Roll feeder from the front (see Figure 6).

Figure 6: Six screws to remove.

3. Remove nine T-20 screws that secure the right side cover to the Multi-Roll feeder from the rear (see Figure 7).

Figure 7: Nine screws to remove.

4. Open the Rear Top cover (see Figure 8).

Figure 8: Rear Top cover.

5. Release the cable that is attached to the top of the right side cover (see Figure 9).

Figure 9: Cable to release.

6. Remove the right side cover (see Figure 10).

Figure 10: Removing the right side cover.

Installation of covers

Follow the procedures listed above in reverse order.

Copyright Hewlett-Packard Co. 2001
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