Lexmark MX310 User's Guide - Page 225
Scanner unit does not close, Poor copy quality
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Troubleshooting 225 Scanner unit does not close Action Check if there are no obstructions between the scanner unit and the printer. a Lift the scanner unit. b Remove any obstruction that keeps the scanner unit open. c Lower the scanner unit. Did the scanner unit close properly? Yes No The problem is solved. Contact customer support. Poor copy quality Action Step 1 Check if an error or status message appears on the display. Yes No Clear the error or status Go to step 2. message. Does an error or status message appear? Step 2 Check the quality of the original document. Go to step 3. Is the quality of the original document satisfactory? Step 3 Go to step 4. If dark marks appear on prints, then clean the scanner glass and the ADF glass using a clean, lint-free cloth dampened with water. Increase the scan resolution setting for a higher‑quality output. See "Cleaning the scanner glass" on page 155. Is the scanner glass clean? Step 4 Send a print job, and then check for print quality problems. a From the General Settings menu, adjust the Eco‑Mode settings. b From the Copy menu, adjust the Darkness setting. c If the print remains faded, then replace the toner cartridge. Go to step 5. See "Print quality problems" on page 206. Is the print quality satisfactory? Step 5 Go to step 6. Check the placement of the document or photo. Make sure the document or photo is loaded facedown on the scanner glass in the upper left corner. Place the document or photo facedown on the scanner glass in the upper left corner. Is the document or photo loaded correctly?