help with Lazer jet 8000 dn

[meangreen]

the screen is showing black squares and it just keep printing balnk sheets of paper....the toner is new and no errors are showing on the desktops the spools seem to be working fine..any ideas?

[MichaelTech]

Added any new memory? Pull out all but firmware, and try. If no good, then replace firmware. Try another Network card also.