Plotter HP Designjet T120 blue screen and error code B3686170

borbo · ‎09-14-2020

Hello everyone,

today my HP DesignJet T120 plotter woke up with a blue screen containing the code B3686170.It shuts down if i keep the power button and if i push the power button again it boots up in the same blue screen.

Can you help me solve this issue ? Can you suggest a way of hardware reset without using touch screen?

Thank you in advance

Repairatrooper · ‎09-14-2020

In dealing with Designjet support I have been told that a blue screen with error means a bad main board and requires replacement.

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borbo · ‎09-14-2020

Thank you for your reply Repairatrooper....Is there any other hard reset option available ?

Enduser1 · ‎09-14-2020

Many times an HP printer fault has self rectified by turning machine off, pulling plug from wall socket and waiting 10 minutes before re-connecting and re-booting.

LUCJANJONAK · ‎09-15-2020

You need to replace HP Encrypted chip

It is inside the printer on main PCA

in USB slot

Like this one

I use this one

https://www.ebay.com/itm/HP-Designjet-T520-T120-Blue-Green-Screen-Error-Solution-Encrypted-chip/2838...

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Plotter HP Designjet T120 blue screen and error code B3686170