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Get help with Large Format Printers, with direct access to all Latex Knowledge Center · Ask anything · Find anything · Share anything at HP LKC
serge_dugal
Level 4
106 40 3 3
Message 1 of 9
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hp designjet z6 error 8039-4d99-00900

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designjet z6 postscript 24"

Hi.

 

My customer have this error on the plotter: 8039-4D99-00900.

 

They saw lines were missing, so they replace the printheads and the plotter doesn't recognise the printheads, mostly the black one.

 

Someone have an idea of the problem?

 

I have look in the service manual and didn't found this error code.

 

Thanks.

8 REPLIES 8
chris1designjet
Level 4
63 63 4 10
Message 2 of 9
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Dear Sir

first remove the latest installed  print head  and restart the plotter  if no error (8039-4D99-00900.) perform replace print head

and insert the new print head or even the older on taking good care to mark the chosen color print head .

and try again 

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serge_dugal
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Hi.

 

Thanks. We will try that.

 

Thank you.

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serge_dugal
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Hi. Thanks for your support.

 

I did remove the printheads and restart the plotter.

 

Same problem, the plotter wont accept the printheads black/matte & maybe the other 2 printheads, because the plotter didn't finish the installation of the black/Matte printhead, so the 2 others  have not finish their installation.

 

So Just to resume what the user did, when he first saw the code 8039-4d99-00900:

 

He install the latest firmware and the error code wasn't there anymore, but he saw that there was white lines.

 

So he replace the printheads (3), but the installation never went to the end.

 

I clean the contacts of the printheads, on the carriage and i try with a brand new black/matte printhead (universal printhead) and still no succed.

 

So 2 new black/matte printheads have been tried and 2 new other printheads(colours). 

 

Do you have an idea what could be the cause of the plotter not accepting the printheads?

 

Could it be the firmware?

 

Should i replace the carriage?

 

Thanks.

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chris1designjet
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hi 

If the plotter is starting without any error without the print heads  all removed and check that they are marked with the right color  to know the right position as it is a universal print head and can be installed any where in the carriage .

after removing the print head put the head  nozzles on a paper tissue  to check the right color of each print head , some times client make mistake or just tell you lies just not to pay their errors ... but check the colors on the tissue and install the print head

 check all inks are valid and more than 20 % and restart the printer

good luck

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serge_dugal
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Message 6 of 9
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Hi

 

Thanks for the reply.

 

The printhead are on the right color tubes. I did it myself with a new one, still the same problem.

 

I wonder if it's the installation of the firmware that cause the problem.

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chris1designjet
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hi

you can roll back to previous firmware from the ews  in the firmware roll back 

 

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serge_dugal
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Do you know, if the reset EEROM default factory, would cause major problem to the printer if we do it?

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serge_dugal
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106 40 3 3
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The user have tried to rollback the firmware and he got a message "

Dependencies checking has failed

A problem has occured with the firmware version; call your support representative.

 

What is Depencies?

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