Should this part get replaced? I have a problem when I print it does some white lines on the paper.

[BleronC]

Hi there. Recently I have had a problem with my printer. I try to print some business cards with full black background and when the paper came out it has a lot of missing color or some white lines. I don't know why this is happening. If someone can help me with my problem.

Thanks in advance. 

P. S. I also changed the black cartridge in the printer but the problem is the same. What should I do? Here you can see the problem that I have. A lot of white on the paper.

Should this part get replaced?

[Valsimot]

What type of paper for cards are you using, did you adjust setting on the computer to print on that paper type?

If you print 2-3 copies of business cards on plain paper is print then OK.

[BleronC]

I use A4 240grams paper. If I print in white background it prints well. What settings should I put when I do this? And should I print only 6 business cards on 1 plain paper? 

Thank you. 

[Valsimot]

First, you need to change the paper type to cardstock or heavy, if you use settings for a plain paper that could be the reason you are having poor print quality.

[BleronC]

Thank you I will try that.