Hi @DainaTi
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
If your HP OfficeJet 4650 is printing text in a wavy pattern, it can be caused by several issues. Here are some troubleshooting steps you can try:
1. Check Paper Type and Quality
- Make sure you are using the correct paper type for your printer. Ensure that the paper is flat and not curled or damaged.
2. Check Paper Feed
- Ensure that the paper is loaded correctly in the tray. The guides should be snug against the paper, but not too tight.
3. Run Print Quality Diagnostic
- Print a diagnostic page to check for issues:
- Go to Setup> Tools> Print Quality Report.
- Review the report for any patterns or misalignment.
4. Clean Printheads
- Run the printhead cleaning function to clear any clogs:
- Go to Setup> Tools> Clean Printheads. Follow the prompts.
5. Align Printheads
- After cleaning, run the printhead alignment:
- Go to Setup> Tools> Align Printheads.
6. Check for Firmware Updates
- Make sure your printer firmware is up to date. You can check for updates through the HP Smart app or the HP Support website.
7. Inspect for Hardware Issues
- Check for any visible damage or obstructions in the printer. Make sure there’s no debris in the paper path or around the rollers.
8. Test with Different Paper
- Try printing on a different type of paper to see if the issue persists. Sometimes, low-quality paper can cause printing problems.
I hope this helps.
Take care and have a good day.
Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.
Rachel571
HP Support