About Blue Screen Error 805DFD31 of Hp Designjet T520 36-in

[Phizerbert]

Thank you for clicking the click on my article.

I want to resolve a problem for my Hp Designjet T520 36-in Printer.

Problem is following:

I would appreciate it if you could give me a way to solve the problem. Thanks.

[Terry_Leair]

You will need to replace the USB drive on the main pca that contains the firmware.

Hope that helps

Part number

CQ890-67105 - USB New module with F/W SV

[rasheddul · Accepted solution]

If any body face the below related proble of HP designJet T120/t520 printer relted, you must follow the below process:

At first try to follow the below steps and get it fix by :

- Connecting the printer to another outlet

- Repacing the power cable

- Replacing the Main PCA (If you have replace Main PCA, it will solved the issue.)

Also try to Isolate the printer by removing any connectivity cables, printhead

Try removing the ink cartridges, printhead, paper, replacing the power cable and another power outlet. If you still have the problem, please replace the Main PCA (P/N: CQ890-67097)

PartSurfer: http://partsurfer.hp.com/Search.aspx?SearchText=CQ890-67081

Part Store: https://parts.hp.com/hpparts/Default.aspx?mscssid=

N.B: Part No. CQ890-67081 is an older revision.

Main PCA - T120: P/N: CQ891-67013

Main PCA - T520: CQ890-67023 

Most of cases that kit will damage for voltage factualation and this one working as a ROM. 

It is my understanding that the new Main PCA should come with the USB with the FW. Make sure it is there before installing the new main PCA.

If problems with the FW, will not recommend you to use the old USB with the firmware again.

If not covered under warranty you may replace Encrypted chip which is failed on the mainboard inside the printer you can buy it on ebay/other's source:

http://www.ebay.co.uk/itm/282081139582?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

http://www.ebay.co.uk/itm/HP-Designjet-T520-Blue-Screen-Error-Solution-Encrypted-chip-/282385654102

http://www.ebay.co.uk/itm/282153834889