Thank you for your informative videos. I just did the belt replacement and the LPS print head latch update. Great products. I did get a formatter warning and found this video. The plotter has been sitting idle for 5 years. In this particular case cleaning and reseating the formatter removed the error.

Thanks for doing this! I suspected it was an easy install, but didn't want to take the chance. Your video gave me the confidence to get my old HP800 back up and running again. We had a hard time finding a formatter board, so it's great to know you guys are out there able to repair or replace the boards.

we have just started getting a 61:05 error. will this fix for this error?

Hello, I have a plotter hp t 770 Tell me what could be the problem. The plotter requested a new head bought a new one put everything the same writes replace the head. The carriage goes to check the head and immediately returns writes the head has not been replaced. Issued error 79.03 updated the firmware now does not issue an error but does not install the head either. What could be

HP Designjet 500 42Zoll. Wie kann ich die Firmware aktualisieren (ich habe A.02.05)?

What caused the hard drive to fail in general ?

I really appreciate it is so helpful. I got this error code and need to replace the formatter. How do you procure this item to Ehiopi and how will be the payment procedure? I am waiting your prompt response.

can HP designjet 800ps print without the formatter card

What should I do about error code 06:03 ?