Lines (blue) down all print jobs despite cleaning, etc. MFP M283cdw

[Trasi]

•  I keep getting blue lines down all print jobs. Cleaned, calibrated- checked cartridges & even changed them out completely, the problem persists. 
•  

[Garp_senchau]

@Trasi, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

Oh no, those blue lines on the printout definitely look frustrating 😓—especially since you've already done all the right things like cleaning, calibrating, and even changing the cartridges.

Print a Supplies Status Page or Configuration Page:

From the printer control panel, go to:
Setup > Reports > Config Report/Supplies Status Page

Do the blue lines appear on these reports?

HP Color LaserJet Pro MFP M282-M283 Printers - Printing self-test pages | HP® Support

Inspect the Cyan Cartridge (Even New Ones):

Remove the cyan cartridge.

Look for any toner leaks, smears, or scratches on the green drum surface.

If you see toner on the drum, especially in a consistent vertical area, the cartridge is likely defective.

Check Transfer Belt & Roller:

Open the rear access panel or toner access door.

Check the black transfer belt surface underneath the toner cartridges. Look for toner buildup or scratches.

Gently clean with a lint-free cloth if you see excess toner (do not use liquids).

Update Firmware:

Go to HP’s site and ensure your printer has the latest firmware. Update the firmware on an HP printer | HP® Support

Reset Printer Settings: Restore factory defaults on your HP printer | HP® Support

Go to Setup > Service > Restore Defaults.
(⚠️ This will reset network settings too—only do this if you've exhausted all else.)

Reference: HP Color LaserJet Pro MFP M282, M283 printers - Fix poor print quality issues | HP® Support

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Regards,