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hp t 790 error 21.2.13

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hp dj t 790 plotter
Microsoft Windows 10 (64-bit)

my nplotter hp dj t790 is giving error  21.2.13

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This error comes when your service station prime motor is not working properly. You may need new service station.


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System Error: 21.2:YZ

Problem Description: Failure testing the length of the Service Station path.
Corrective action: Try the following:
  1. Switch the power off from the back of the product and disconnect the power cord. Check the Primer Tubes. Reconnect the power cord and power on the product.
  2. Make sure that the Service Station path is clear. Remove any visible obstacles (screws, plastic parts, etc.) restricting the movement of the Service Station.
  3. If the carriage has stopped over the service station, on the right side of the product, check that the cutter is not activated. It may happen that the cutter is blocking the carriage over the service station, preventing the service station from performing the movement correctly. The cutter is on the left side of the carriage.
  4. Perform the Service Station diagnostic test to troubleshoot the problem further.
  5. Replace the Service Station
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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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