Showing results for 
Search instead for 
Did you mean: 
Get help with Large Format Printers, with direct access to all Latex Knowledge Center · Ask anything · Find anything · Share anything at HP LKC
New member
1 0 0 0
Message 1 of 2
Flag Post

Designjet T520

HP Recommended

Since few days the blue error B87E3780 appears and I can not find how to fix it in the manual or even on the internet.
Can you help me and tell me what it means?
The printer is locked, I am desperate

Thank you so much!
New member
1 1 0 0
Message 2 of 2
Flag Post
HP Recommended




You need to replace Designjet Encrypted chip

It is on mainboard in usb slot 



You can find here





Was this reply helpful? Yes No
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation