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Designjet T790 Error 21:13

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Designjet T790

On starting up Designjet T790 the error on screen 21:13 continually comes up. It tells me to restart the printer which I have done on numerous occasions - the result is the saem error message each time.


Previously an error 08:04 was displayed - but I have updated the Firmware,

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sounds like you have a service station problem. Check the service station on the right side of printer .

System Error: 21:YZ
Problem Description: Failure moving Service Station
Corrective action: Try the following:
1. Switch the power off from the back of the printer and disconnect the power cord. Check
the Primer Tubes. Reconnect the power cord and power on the printer.
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 printer, check
that the cutter is not activated. The cutter may be 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. See
Service Station Test on page 121.
5. Replace the Service Station. See Service Station on page 367.


this is for reference only,, I am not an hp employee, Good Luck and let us know what you find.

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Thank you MEAT 1820.
The cutter is a little locked compromising the car's displacement, so I lubricated the cutter with silicone, cleaned the excess and ... bingo.

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