Guidelines
Experiencing 'Printer Blocked' or 'Printer Error' message? Click here for more information.
Check some of the most frequent questions about Instant Ink: HP INSTANT INK, HP+ PLANS: INK AND TONER.


Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.
HP Recommended
MFP 377 dw
Microsoft Windows 10 (64-bit)

My HP PageWide 377dw MFP is a couple of years old and has just recently starting printing vertical streaks in yellow, cyan and black about every 1 inch across the page.  

 

I've tried replacing the toner cartridges, cleaning level 1 and 2, and calibrating color density. I am unsure how to go about troubleshooting any further.

Please help.

1 REPLY 1
HP Recommended

Hello,

 

Hope you are well, based on the information provided, if you replace the toners with HP originals and issue remains even after the print head cleaning, at this point is better to reach an authorized service center for print bar repair.

 

Click here to get the nearest service center.

 

Regards,

I am an HP employee
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.