designjet t520

[gringod]

Hi Forum

I have the dreaded T520 blue screen. (why would HP introduce a blues screen, they should have learned from microsoft lol)

any way, does any one have a lsiting for these errors?

Surely HP did not introduce these errors with out any documentation?

are these error code random? or is there an order to these codes?

thanks

[denisrozr · Accepted solution]

Hello

All blue screen errors are  beacuse Designjet Encrypted Chip failed .

You need to replace it 

It is located on the mainboard 

It is very easy usb  slot 

You can find it on ebay 

http://www.ebay.co.uk/itm/HP-Designjet-T520-Blue-Screen-Error-Solution-Encrypted-chip-/282319068692

[Mikeg81]

Hi,

Isolate the printer, remove ink cartridge, printhead and paper

Try another power cable and power outlet

If the issue persist use the CQ890-67105 USB New Module with F/W SV

Make sure that

1- USB installed incorrectly

2- Main PCA is broken when removing the screw of the USB PCA

If you continue with the problem, replace the Main PCA