Problem with LaserJet150nm printing

[MartinMarny85]

Hi, i solving problem with hp printing.

I try clean transfer belt. Other parts see good. 
what could be the problem?
this si problem:

 

 

 

[MartinMarny85]

 

[Jerry_57]

Hi @MartinMarny85,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

The quality of a print from an HP Color Laser 150a or 150nw printer is poor. The steps in this document help with print quality problems such as smeared, fuzzy, dark, or faded print, and loose, partially missing, or scattered toner.

Check the paper and the quality of the file being printed

Make sure your print job is set up for optimal print quality results.

Use paper designed for HP LaserJet printers: LaserJet paper is designed to handle the additional heat produced during the printing process.

CAUTION:

Do not use paper designed only for inkjet printers. For example, inkjet glossy photo paper can blister during the print job, which might damage the printer.

Some papers might not absorb toner as well as others, causing faded or smeared prints.

Use clean, wrinkle-free paper. Wrinkled or curled paper can cause dark, horizontal defects.

Do not use paper that is too rough. Smoother paper can result in better print quality.

Load the paper according to the print side: Typically, the smoother or glossy side is the print side, and it is loaded with the print side facing up in the input tray.

Check the quality of the photo or document: Use editing tools to improve colors, brightness, contrast, and any other appearance settings. Higher resolution photographs and graphics result in clearer prints with more accurate colors.

Check the toner level

Low toner levels might cause print quality problems, such as faded print.

Check the estimated toner remaining. For more information, go to Check HP printer ink or toner levels.

If the toner cartridge is not low, skip to the Check print settings step.

If the toner cartridge is low, continue to the next step to replace the toner cartridge.


I hope this helps.

Take care and have an amazing day!
 

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Jerry_57

HP Support

[MartinMarny85]

Hi, thanks for the reply and sorry for the late reply.

Yesterday I replaced all 4 toners (C, M, Y, black) and the print quality (shadow) has improved to 95%.

Sorry I don't have any current photos (I'm solving the problem at my parents').

There is still a slight repeating shadow on the paper, but I think the problem is on the "imaging drum". (I tried cleaning it with a rag by turning the roller - dust still appears on the roller).

I don't want to disassemble the roller yet (I assume that it is enough to loosen the center rod).

Maybe the quality will improve with printing. The printer is not used much. I no longer think that the problem is the transfer belt. Maybe I will add a photo.