Lexmark MX711 User's Guide - Page 321
Poor copy quality, Step 1
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Troubleshooting 321 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 237. 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 toner darkness. c If the print remains faded, then replace the toner cartridge. Go to step 5. See "Print quality problems" on page 301. 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? Step 6 Increase the scan resolution setting for a higher‑quality output. The problem is solved. Go to step 7. Did the increased resolution produce a higher‑quality output? Step 7 Go to step 8. Check the copy settings. From the Copy screen, check if the Content Type and Content Source settings are correct for the document being scanned. Are the Content Type and Content Source settings correct for the document being scanned? Change the Content Type and Content Source settings to match the document being scanned.
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