HP LaserJet M443 MFP

Toner smear

Suggested solutions

• Clean the inside of the printer.
• Check the paper type and quality.
• Remove the toner cartridge and install a new one.

Vertical repetitive defects

Suggested solutions

If marks repeatedly appear on the printed side of the page at even intervals:

• The toner cartridge may be damaged. If you still have the same problem, remove the toner cartridge and, install a new one.
• Parts of the printer may have toner on them. If the defects occur on the back of the page, the problem will likely correct itself after a few more pages.
• The fusing assembly may be damaged. Contact a service representative.

Background scatter

Suggested solutions

Background scatter results from bits of toner randomly distributed on the printed page.

• The paper may be too damp. Try printing with a different batch of paper. Do not open packages of paper until necessary so that the paper does not absorb too much moisture.
• Select Thick from the Printing Preferences window.
• If background scatter covers the entire surface area of a printed page, adjust the print resolution through your software application or in Printing Preferences. Ensure the correct paper type is selected. For example: If Thicker Paper is selected, but Plain Paper actually used, an overcharging can occur causing this copy quality problem.
• If you are using a new toner cartridge, redistribute the toner first.

Toner particles are around bold characters or pictures

Suggested solutions

The toner might not adhere properly to this type of paper.

• Change the printer option and try again. Go to Printing Preferences, click the Paper tab, and set the paper type to Recycled.
• Ensure the correct paper type is selected. For example: If Thicker Paper is selected, but Plain Paper actually used, an overcharging can occur causing this copy quality problem.