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Chris161190
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T520 24” plotter printhead seating

HP Recommended
T520
Mac OS X 10.11 El Capitan

Hi all, 

 

I have a t520 plotter which seems to work fine but occasionally on start up I get a message saying there is a problem with the printhead and to either reseat or replace it, reseating the print head always fixes the issue enabling me to print but after a week or so I’ll get the same message again. I can live with the problem but ideally I’d like to fix it for good. Any ideas? Using a genuine print head and genuine inks. Printer was manufactured May 2017. Firmware is up to date. It has had a new printhead which resulted in the same message so don’t now think it’s an issue with the print head itself.

Thanks, 

 

Chris

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Ouccema
Level 4
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HP Recommended

Good morning,

 

I suggest to perform below fixes:

 

 

from Support Menu: how to access: enter into the support menu by pressing the power button for 15 seconds.

Perform OOBE Reset from Support Menu: 

  1. Scroll down to Resets, and then touch Reset OOBE.

Perform Hard Reset :

  1. Scroll down to Resets, and then touch Hard reset.
  2. Enter the password 3746 when prompted to initiate the hard reset.

 

Perform Printhead startup condition  : 

  1. Access 3.5 'Reset PHA Startup Condition'.
  2. Type 'PIN' number 2873, and select OK.
  3. if failed the plotter needs a service repair.
I am an HP Employee.
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Chris161190
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Thanks for you help.

 

I have tried these tests and get the fail message on the last test (Reset PHA Startup Condition)

 

The printer has a had a new printhead and gets the same error so i believe it is either the Trailing Ribbon Cable or the Carriage PCB?

 

Thanks 

 

Chris.

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Ouccema
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Hello,

 

Thanks for those details, I suggest starting with the carriage assembly (contain carriage PCA and trailing cable)

I am an HP Employee.
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Chris161190
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Thanks, 

 

I will source the parts and report back if successful or not.

 

Thank you for your help.

 

Chris.

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