HP LaserJet Enterprise MFP M430 LaserJet Enterprise MFP M430 M431 User Guide - Page 207
Troubleshoot image defects, Table 9-7
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Table 9-7 Fixing/fuser defects Sample Description Slight shadows or offsets of the image are repeated down the page. The repeated image might fade with each recurrence. Possible solutions 1. Reprint the document. 2. Check the paper type in the paper tray and adjust the printer settings to match. If necessary, select a lighter paper type. 3. If the issue persists, go to support.hp.com. Toner rubs off along either edge of the page. This defect is more common at the 1. edges of high-coverage jobs, and on light media types, but can occur anywhere on the 2. page. Reprint the document. Check the paper type in the paper tray and adjust the printer settings to match. If necessary, select a heavier paper type. 3. Enterprise models only: From the printer control panel, go to the Edge to-Edge menu and then select Normal. Reprint the document. 4. Enterprise models only: From the printer control panel, select Auto Include Margins and then reprint the document. 5. If the issue persists, go to support.hp.com. Table 9-8 Gray background or dark print Sample Description The image or text is darker than expected and/or the background is gray. Possible solutions 1. Make sure that the paper in the trays has not already been run through the printer. 2. Use a different paper type. 3. Reprint the document. 4. Mono models only: From the Home screen on the printer control panel, go to the Adjust Toner Density menu, and then adjust the toner density to a lower level. 5. Make sure that the printer is within the supported operating temperature and humidity range. 6. Replace the cartridge. Troubleshoot image defects 195
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