A few thoughts that might help.
a) with all the singular problems that the Z series comes up with from time to time, what you described above has not been mentioned, to the best of my knowledge.
b) Once Qimage releases the print file to go to the spooler, it is "done". You can close the program if you wish. Your computer, its memory, and allocated memory for the printing are possible suspects.
c) Qimage changes 16 bit files to 8 bit for printing from Windows drivers. That should mean that the size of the print file is not bloated.

I'm certainly not an expert regarding the Z3100 printing, but there are a number of HP Z users on here to try to help with any printer settings that might influence the creating of the error message.
... and HP could offer no direction?

Fred
 

Thanks Fred and Ernst

The printer is a plain Z3100.  I have the Service manual and it is of no help - it says to call HP if this problem happens again.  I have been dealing with HP on this for 2  months and they have not been much help, but suggested changes to advanced driver settings which didn't work.  They have had me try to erase the hard disk but the erase function on the printer didn't work - it hung up.  They have had me try the internal prints on the printer and I printed 15 without a problem.  I have gone through two firmware upgrades with the problem.  I have the latest driver.  HP is still working on the problem so I will see what they come up with.

You think there is no chance it could be related to Qimage somehow, or was it a coincidence that it started happening when I started using Qimage?

Larry

Ernst

In the service manual, the 71 relates to memory management.  The 03 refers to who is to take action.  In this case the user is to try the advanced driver settings and if they don't work, to ask to HP for advice.  What happens when this error occurs is that printer stops printing and I need to reboot the printer.  Needless to say, the print is lost in most cases.  I've been back & forth with HP for almost two months now with no success and in the meantime my warranty has run out and HP are trying to tell me I will have to pay for a service technician even though the problem occurred and was reported to HP well before warranty expired.

I do flatten my layers before printing but have been sending 16 bit TIFF files because I understood Qimage converts to 8 bit before sending to driver.  CM is on in Qimage and off in driver as you suggest.  The settings do hold in the driver so no problem there. 

I have tried different network connections already (because of another issue) using different cards and cables.  Tried to do a direct network connection between computer and printer but could never get it to work - could never find any references as to how to do this successfully. What I did try, is a direct connection between the motherboard network connection and the printer; also, installed a new Intel network card and tried a direct connection to the printer from that.  Neither worked.  I must not know how to do it.

Cheers
Larry