Samsung CLX-3185FN printing solid black pages

[perahl]

Hi, my problem started when got grey vertical lines on right side of the paper when I printing. I took out and cleaned carefully my drum unit and after that I put it back and then when I printing pages all pages was black on hole of the page area (compleatly black). The problem is the same with scanning, copies and printing. What can be wrong and have I forgot something? My printer Samsung CLX-3185FN is a multifunction laser colour printer.

 

[sanchoss]

You disassemble drum unit? Black picture without border - no electrical contact on PCR roller.
Can you make photo of print page?

 

[perahl]

Hi I have change the drum and got a new one on warranty. So everything is ok now.