Canon PIXMA E474 - Manual (Page 294)

Then install the FINE cartridges again. Push up the FINE cartridge until it clicks into place.
After confirming that the FINE cartridge is installed properly, close the cover.
• When copying, see also the sections below:
Check6 Is platen glass dirty?
Clean the platen glass.
Cleaning the Platen Glass and Document Cover
Check7 Make sure original is properly loaded on platen glass.
Loading Originals
Check8 Is original loaded with side to be copied facing down on platen glass?
Check9 Did you copy a printout done by this printer?
If you use a printout done by this printer as the original, print quality may be reduced depending on the condition
of the original.
Reprint from the computer if you can reprint from it.
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