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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
perthblue1960
Level 3
59 44 3 4
Message 1 of 11
639
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HPDesignjet 800 79:04 firmware error

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Hi all

HPDesignjet 800 79:04 firmware error before printing a job..not in itself unusual..however it`s followed by this

 

Assertion failed

Task T switcher

file RedSPc.

line 4761

 

I have never seen this before..any suggsetions?

Thanks

10 REPLIES 10
HarryCR
Level 5
Level 5
216 215 16 23
Message 2 of 11
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Hello @perthblue1960 

 

The 79:04 Error is a generic one, so the printer doesn't exactly know what is happening. If this is happening only while processing a job there is a possibility that the formatter is defective however my suggestion is to try printing a different job and if the same happens then make sure that the driver is the latest one and check the status of the printheads and cartridges.

 

Regards.

 

 

I am an HP employee
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Repairatrooper
Level 13
Level 13
10,367 10,206 1,058 3,105
Message 3 of 11
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I agree with @HarryCR try printing a different print job to see if you get the same errors. Could be a corrupted print job.

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.


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rubensanchez01
Level 4
130 115 1 6
Message 4 of 11
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try to use the DJ500 PCL driver....

 

Before I used DJ500 since year 2001 & saw this error code....

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perthblue1960
Author
Level 3
59 44 3 4
Message 5 of 11
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Hi to all...just an update...I have proven that the error only appears when a job is sent across the network..by that I mean with the network cable disconnected you can boot and all internal and any usb printing is fine....so I am thinking next culprit network card..or formatter..I will update as I go.

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piano999
Level 2
15 5 0 0
Message 6 of 11
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It's a printhead error. It will be cured if you replace it.

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perthblue1960
Author
Level 3
59 44 3 4
Message 7 of 11
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Hi Piano999...how does a faulty printhead manage to print ok via usb..and the internal prints?

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piano999
Level 2
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Message 8 of 11
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Unfortunately, I don't know which head is abnormal. It will definitely improve if you replace them all.

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HarryCR
Level 5
Level 5
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Message 9 of 11
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Hi @perthblue1960 

If the printer gets ready and you can print without the network cable connected that means that the Nic, network card or jetdirect is defective, and definitely is not  a printhead issue @piano999 because the machine prints fine when disconnected from the network. @perthblue1960 I suggest you don't replacing any printheads if from usb or internally the machine works fine.

 

Regards.

I am an HP employee
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perthblue1960
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Level 3
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Message 10 of 11
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so just to update...I replaced the network card..however unable to configure dhcp for some reason...

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