printing dark area down right side of page

[Normxx]

cleaned black toner residue from interior. It is slightly improved but still get dark area down right side of page

[Sneha_01]

Hi @Normxx,

Welcome to HP Support Community.

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

I see there is an issue with the print quality. I have shared a few steps below. Hope that helps.

Step 1: Use genuine HP toner cartridges

HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to the HP anti-counterfeit webpage (in English).

Purchase replacement cartridges and other supplies from the HP Store or local retailers.

Step 2: Check the paper

The quality and type of paper can affect the print job. Follow these guidelines to make sure that the paper is appropriate. If it is not, load an appropriate paper type.

Use paper that is designed for use in HP LaserJet printers. Do not use paper that is designed only for inkjet printers.

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

After loading the appropriate paper in the tray, try to print. If the issue persists, continue to the next step

Step 3: Check the EconoMode setting

EconoMode is an option for printing that uses less toner. However, using EconoMode can reduce print quality.

If the entire page is too dark or too light, the EconoMode setting might be enabled. HP does not recommend the full-time use of EconoMode. If EconoMode is used full time, the toner supply might outlast the mechanical parts in the toner cartridge. If print quality begins to degrade and is no longer acceptable, replace the toner cartridge.

Step 4: Check the print settings

Sometimes the print settings can affect the print quality. Select your operating system, and then check the print settings to make sure that they are appropriate for your print job.

Step 5: Check the toner level

Select your printer control panel display type, and then follow the steps to check your printer's toner level.

Step 6: Replace a low or empty toner cartridge

Select your printer model for instructions to replace the toner cartridge.

Step 7: Print a cleaning page

The printing mechanism and printing path inside the printer might need to be cleaned to resolve issues like repeating dots, fuzzy print, or smeared toner.

Step 8: Inspect the toner cartridge and imaging drum

Check the toner cartridge and imaging drum for damage.

Step 9: Replace the imaging drum

Replace the imaging drum if you found visible damage.

Step 10: Replace the toner cartridge

Even if the toner cartridge is not low on toner, follow the steps in this document to replace it with a new, genuine HP toner cartridge.

If you have a defective cartridge or printhead, it might be under warranty. To check the warranty on your ink or toner supplies, go to Printer and Page Yield Overview, and then review the limited warranty information for your supplies.

You may find the detailed instructions here : https://support.hp.com/in-en/document/c05206057

I hope this helps.

Take care and have a good day.

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Rachel571 

HP Support