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HP Designjet 500, 510, and 800 Series Printers - System Error 79:04

Introduction

System error 79:04 "Firmware Error", indicates the HP Designjet 500, 510, or 800 series printer experienced an unexpected error and could not continue. Follow the steps below to troubleshoot the problem.

Troubleshooting HP Designjet 500, 510, or 800 series printer functionality

  1. Turn off and turn on the HP Designjet 500, 510, or 800 series printer. If the error persists, go to Step 3.

  2. Send a test print from the printer driver. If it prints successfully, go to software troubleshooting . If it is unsuccessful, proceed to Step 3.

  3. Turn off the HP Designjet 500, 510, or 800 series printer and disconnect the parallel cable and any network cables, leaving only the power cable connected.

  4. Turn the HP Designjet 500, 510, or 800 series printer on and send the Troubleshooting Print from the Ink System menu of the front panel. If the Troubleshooting Test Print is successful, go to troubleshooting connection . If the error reappears when performing the Troubleshooting Print, there may be a hardware problem with the printer.

  5. Remove any additional memory. Send the Troubleshooting Print.

    CAUTION: Before handling a memory module, HP Jetdirect or accessory card, put on a grounding wrist strap and attach the end to the metal chassis of the printer. If a wrist strap is not available, touch the outer metal surface of the printer with your hand. Otherwise, static electricity from your body could cause damage.
  6. Remove the HP Jetdirect card if installed. Send the Troubleshooting Print.

  7. Remove the HP-GL/2 Accessory card if installed. Send the Troubleshooting Print.

  8. Check for a new release of the firmware and upgrade to the latest version if needed.

  9. If the error persists, press the MENU button when the error appears to obtain further information for HP Customer Care technical support.

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Troubleshooting the connection between the HP Designjet and the computer

  1. When using a parallel or USB connection, ensure that the HP Designjet 500, 510, or 800 series printer is the only device connected to that USB or parallel port. Other devices such as switchboxes can interfere with the communication between the computer and the HP Designjet 500, 510, or 800 series printer.

  2. Try a different cable.

  3. If using a parallel cable, verify that the cable is less than three meters long and is IEEE-1284 Compliant.

  4. Try a different parallel port mode on the computer. HP Designjet Customer Care cannot do this. If assistance is needed, please refer to the computer’s documentation or technical support.

    NOTE: Some peripheral devices have port-monitoring software that can interfere with communication to the HP Designjet 500, 510, or 800 series printer via a parallel port. This software may need to be uninstalled before the computer can communicate successfully with the HP Designjet 500, 510, or 800 series printer. If this is the case, please refer to the documentation or technical support services provided with the other printer.

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Software troubleshooting

  1. Send the same file that generated the system error.

  2. If the error reappears, try generating the file again and try to print.

  3. Try sending a different file.

  4. Try a file from a different application.

  5. Verify that the correct printer driver is being used.

  6. Check for a new release of the printer driver.

  7. Uninstall and reinstall the printer driver (install the most current version available).

  8. In the driver settings, set all other printer drivers that are set to print to the same port as the HP Designjet 500, 510, or 800 series to "Print to File".

For the HP Designjet 800 series printer only, check the following

  1. Verify that the graphics language on the front panel corresponds to the language of the file being sent to the printer.

    1. From the front panel message of Ready , highlight the Printer icon, and press ENTER .

    2. Press the ARROW buttons to select Graphics Language , and press ENTER .

  2. If the file that is causing the error is a Binary PostScript file, use AppleTalk to send it to the printer. If AppleTalk is not used, change the front panel PostScript setting to Binary .

    1. From the front panel message of Ready , highlight the Printer icon, and press ENTER .

    2. Press the ARROW buttons to select PostScript Settings , and press ENTER .

    3. Select Encoding and press ENTER .

    4. Select Binary and press ENTER .

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79:04 errors when using version A.02.02 firmware or newer

79:04 error means "unexpected," "unknown," or "not assigned." Some of these errors are now better understood and have been remapped to the following:

  • 55:11 - problems with line sensor (too noisy)

  • 61:05 - error processing job (service manual)

  • 71:06 - out of memory problem

  • 62:03 - problem with the parallel port communications

  • 63:03 - problem with the LAN card communications

  • 64:03 - problem with the USB port communications

  • 65:03 - generic Input/Output port communication problem

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79:04 errors when printing from a Macintosh

There are two known possible causes of the 79:04 error when printing from a Macintosh. If a Macintosh is printing to the printer via TCP/IP, you must specify a queue name of BINPS. Leaving the queue name blank could cause the printer to mishandle binary postscript information.

If the Macintosh is connected via USB, ensure that all TIFF and EPS images are saved as ASCII-encoded, and that the application is set to send ASCII-encoded image information.

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Unexplained 79:04 error on boot up (printer isolated)

Third party ink supplies (printheads or cartridges) can commonly cause unexplained 79:04 errors. To resolve issue, replace all third party ink supplies from the printer, and replace with supported HP ink supplies.

Click here to purchase parts and accessories from the HP Parts Store online at http://h20141.www2.hp.com/hpparts/.

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