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‎09-20-2021 01:37 AM

HP Recommended
Product: Hp designjet t790
Operating System: Microsoft Windows 10 (64-bit)

Hello there 

I Have a HP designjet T790 Printer 

it stuck on 20% initializing and then after a while 79:04 error shows UP , I tried several Firmware Upgrade but The Printer won’t upgrade and a error with invalid firmware shows up , but I Downloaded Firmware From Hp website

here is whats things I Did till now

1-Replaced Formatter Board

2-Replaced Main PCA

3-Replaced Interconnect Board

4-Replaced HDD

5-Replaced analog Sensor 

Is there any other soloution ? Thank YOu my friends 

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