Canon PIXMA MG3022 Online Manual page 300

Clean the platen glass.
Cleaning the Platen Glass and Document Cover
Is paper feed roller dirty?
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Clean paper feed roller.
Cleaning the Paper Feed Rollers
Note
• Cleaning the paper feed roller abrades it, so do this only when necessary.
Is inside of printer dirty?
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During duplex printing, ink may stain the inside of the printer, smudging the printout.
Perform bottom plate cleaning to clean inside of printer.
Cleaning the Inside of the Printer (Bottom Plate Cleaning)
Note
• To prevent staining inside the printer, be sure to set the correct paper size.
Set longer ink drying time.
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This allows the printed surface to dry, preventing smudges and scratches.
• For Windows:
1. Make sure printer is turned on.
2. Open printer driver setup window.
How to Open the Printer Driver Setup Window
3. Click Maintenance tab and Custom Settings.
4. Drag Ink Drying Wait Time slide bar to set the wait time and click OK.
5. Check message and click OK.
• For Mac OS:
1. Make sure printer is turned on.
2. Open the Canon IJ Printer Utility2.
Opening the Canon IJ Printer Utility2
3. Select Custom Settings in the pop-up menu.
4. Drag Ink Drying Wait Time: slide bar to set the wait time and click Apply.
5. Check message and click OK.
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