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HP Designjet 1000 Series Printers - TWI: No Power

Document number: BPP90124

Last Updated: 26-Feb-2003

Minimum skill level: 2

The printer does not respond when turned on. Common causes include problems with Main power source, power cable connections, the power supply or a defective electronics module. Follow the steps listed below to determine the actual cause of the failure and to 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.

Part description	Models - C6074A, C6075A	Models - C6074B, C6075B
Power Supply (Required)	N/A	C6074-60282
Electronics Module (Required)	C6072-69146	C6074-60283
Electronics Module Fuse (Required)	C6074-60307	C6074-60307
Trailing Cable (Required)	C6072-60196	C6072-60196
Carriage Assembly (Required)	C6072-69147	C6072-69147

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.

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. Printer must be plugged into a known good power source.

2. Check connection between the power cable and printer.

3. Check that the main power switch at the back of the printer is turned on.

4. Turn the printer on using the front panel power switch (Stand-by button). The LED on front panel power switch should light up.

5. If no response from the printer, turn the main power switch off and try a different power cord (if available).

6. Open the top cover and trip the top cover sensor (use a piece of paper to trip sensor).

7. Turn the printer on (main power switch first, then the Stand-by button).

8. Check for internal movement or noise in the printer.

9. If movement or noise is detected the Front panel assembly is suspected.

   NOTE: If internal printer movement or noise is detected when the printer is turned on, use the work instruction Front Panel Display is Blank, Weak, or Fading (bpp90217) to resolve the issue.

10. If no internal movement or noise is detected, continue with the remaining steps.

11. If the printer is a 1000 series plus model "B," replace the Power Supply.

    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.

12. Following replacement attempt to verify functionality.

13. If the printer is an original "A" model or problems persist following the replacement of the Power supply (for "B" model) replace the Electronics module (refer to pg. 8-25 of the Service Manual).

    NOTE: If printer is an “A” model, replace the Trailing cable during the Electronics Module replacement. Refer to pg. 8-39 of the Service Manual for removal and replacement instructions.

14. Following replacement of the Electronics module, turn the printer on and perform a Calibrations Backup as listed below.

15. Turn the printer off, then on and attempt to verify functionality.

16. If the issue persists, replace the Carriage and Trailing cable (refer to pgs 8-44, 8-39 of the Service Manual).

17. Lower the printer’s Top cover and close the Printhead cleaner door (door on right side).

18. Turn the printer on and allow initialization to complete.

19. Perform service calibrations 2, 3, 4, 6, 8, and the Carriage Height calibration (service calibration instructions are listed below).

20. Following successful calibrations, turn the printer off, then on and verify functionality.

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. With the printer turned on, scroll to the Printer Setup Menu (Icon of printer in lower right side of the front panel display) and press Enter.

2. Using the Arrow keys scroll to Utilities, and press Enter.

3. Press the Up Arrow and Enter keys simultaneously.

4. Scroll to Service Calibrations and press Enter.

5. Scroll to the needed Service Calibration and press Enter.

6. Follow instructions displayed on the front panel to complete the selected calibration.

7. When calibration is finished, stay in service mode to perform any additional calibrations (if required).

8. When all required calibrations are complete, return to the main Status display using the Back key.

9. Turn the printer off.

10. Turn the printer on, and attempt to verify functionality.

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 Utilities and press Enter. Scroll to Menu Mode =. Select Full (if needed), press Enter, and then press the Back key to return to the main menu.

1. Scroll to the Utilities menu, and press Enter.

2. Simultaneously press the Up Arrow key and the Enter key.

3. Use the Arrow keys to scroll to Service Calibrations and press Enter.

4. 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 the Calibrations Backup is complete.

8. Following the calibration, turn the printer off then on and verify functionality.

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.

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.

   Figure 1:Left door screws

   

3. Remove the left door.

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

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

   Figure 2:Front top cover screws

   
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.

   Figure 3:Front left side cover screws

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

   Figure 4:Rear left side cover screws

   
8. Remove the left side cover.

   Figure 5:Removing the 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. 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.

   Figure 6:Front right side cover screws

   

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

   Figure 7:Rear Right side cover screws

   
4. Open the Rear Top cover.

   Figure 8:Opening Rear Top cover

   

5. Release the cable that is attached to the top of the right side cover.

   Figure 9:Releasing right-side cover cable

   

6. Remove the right side cover.

   Figure 10:Removing the right side cover

   

Follow the procedures listed above in reverse order.

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