why does my printer print with horizontal lines even after cleaning

[basscj]

why does my printer print with horizontal lines even after cleaning

[Kuroi_Kenshi]

Hi @basscj,

Welcome to the HP Support Community! 

Thanks for reaching out about your query regarding horizontal lines on an HP ENVY Photo 7830!

We're thrilled to have the opportunity to assist you and provide a solution.

Try these steps:

Check the Paper

Use good-quality, recommended HP photo paper or plain paper.

Make sure paper is dry, flat, and properly loaded.

Run a Nozzle Check (Print Quality Report)

On the printer’s touchscreen:
➜ Setup → Tools → Print Quality Report

Look for missing lines or gaps on the test page.

Align the Printhead

If the lines show gaps, run Align Printhead:
➜ Setup → Tools → Align Printer

Run a Deep Clean

If basic cleaning didn’t help, run Clean Printhead again:
➜ Setup → Tools → Clean Printhead

Do it up to 2–3 times if needed.

Print a test page each time.

Check Ink Levels

Low or nearly empty cartridges can cause streaks.
➜ Setup → Estimated Ink Levels

Replace any cartridges that are very low.

Use Genuine HP Ink

Non-HP or refilled cartridges can cause poor print quality.

I hope this helps.

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Best regards,