HP LaserJet MFP M436dn

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.

Misformed characters

Suggested solutions

• If characters are improperly formed and producing hollow images, the paper stock may be too slick. Try different paper.

Page skew

Suggested solutions

• Ensure that the paper is loaded properly.
• Check the paper type and quality.
• Ensure that the guides are not too tight or too loose against the paper stack.

Curl or wave

Suggested solutions

• Ensure that the paper is loaded properly.
• Check the paper type and quality. Both high temperature and humidity can cause paper curl.
• Turn the stack of paper over in the tray. Also try rotating the paper 180° in the tray.