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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
mohamed40
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Message 1 of 3
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quality issue

HP Recommended
design jet t830
Microsoft Windows 10 (64-bit)

hello

a costumer call me for a print quality issue after i have seen that all the nozzles printing in black color then i decided to replace the print head kit  after  we make cleaning head several times 

i replaced the print head with a new one and every thing was perfect 

a four month later the same costumer call me for the same issue i go there and fide that there is a black ink in the other colors

i make print head cleaning and it worked fine 

a week later it is return to the same problem

i have another costumer with the same problem but  the print head is working in the printer for more than 3 years 

SKM_C364e21010111561_0001.jpgSKM_C364e21010111560_0001.jpg 

this is the diagnostic print 

i have another diagnostic print for another t830 for different costumer with same issue

WhatsApp Image 2020-12-30 at 13.56.38.jpegWhatsApp Image 2020-12-30 at 14.04.16.jpeg  

2 REPLIES 2
Repairatrooper
Level 13
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Message 2 of 3
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HP Recommended

Is there any ink inside the printer that would suggest a printhead leak? It is possible that you have a defective printhead and if it is still under warranty I would contact HP tech support and arrange for a replacement. support.hp.com

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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mohamed40
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HP Recommended

Hello 

Thanks for your answer 

But the old printhead  that I  replaced  before have the same problem when I print diagnostic 

test print all the colors was black . and do not reach the time or the ink quantity that must to fire 

Because of this reson I have a suspect that  svs or prime pump is not functioning properly. 

 

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