How to troubleshoot the 79:04 System Error 31
Troubleshooting
Answer: From the ONYX RIP, within the properties of the printer, set the port to 9100 (instead of LPR).
The LPR port has a maximum file size limitation.
Question: When printing from the ONYX RIP, my PC becomes too slow and/or the carriage stops
between each swath, how can I troubleshoot this problem
Answer: A number of different factors can cause this to happen. Here is a troubleshoot checklist which
should solve the majority of issues:
1. Uninstall the HP Easy Printer Care, the Color Center and/or the HP Printer Utility. If you need to use
this tool, you might be able to install them on another PC.
2. Disable the Best fit function (nesting algorithm, to be turned off), this is mainly when printing on a
60" printer.
3. Make sure that there is a 1GB connection between the printer and PC, and that both the PC and the
printer are alone, behind a switch.
4. For a variety of reasons we do not recommended using a cross over LAN cable (direct connection
between the printer and the PC).
5. As the number of colors, and the printing resolution of the HP Designjet Z6100 compared to the HP
Designjet DJ5500 is higher, the ripping time will be higher.
6. Use the ONYX 7.1 with the latest ONYX drivers for the HP Designjet Z6100. You will then be able to
print through the 'contone' path. This has a rendering/ripping resolution from 300ppi (FAST and
NORMAL-FAST) to 600ppi (NORMAL and BEST), depending of the image quality setting selected.
However, Contone drivers have less control of the color and any media profiles will need to be
redone (but the creation will be much quicker and it is much simpler).
Question: On my HP Designjet 5500 printer, I was able to select any printmode
(resolution, number of passes, ...) and on the HP Designjet Z6100, I have got only 4 choices! For
example, when loading a photo media, I cannot select a number of passes lower than 6. What can I do?
Answer: Upgrade to firmware GG6.0.0.9 and upgrade the RIP to ONYX RIP 7.1. You will then have
many more choices of printmode (around 8-10 per media types selected on the front panel).
Question: When printing on the HP Designjet Z6100 form the ONYX RIP, I get an error on the front
panel: '61:01, media miss-match'. What can I do?
Answer: Upgrade to firmware GG6.0.0.9 and upgrade the RIP to ONYX RIP 7.1. After doing this the
probability of having this error is significantly reduced (more print modes available plus warning from the
ONYX RIP in case of incompatibility).
Question: I am using a specific image quality in my HP Designjet 5500, and I cannot find the same
name on the HP Designjet Z6100, which one should I select to get the same image quality while printing
faster?
Answer: Refer to the table at the beginning of this newsletter ‘Recommended Print Modes’ . This is a
print mode look-up table, showing the optimized upgrade path (mainly for HP media).
How to troubleshoot the 79:04 System Error
Introduction
The System error 79:04 is a generic firmware error (equivalent to a blue screen in Windows). It’s the
System Error that the printer will display when an unknown exception occurs that cannot be pointed to by
any specific subsystem of the printer.
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