Canon TR150 Series Online Manual page 257

For details on how to load paper or the position of the paper thickness lever:
Loading Paper
Depending on the printing content, the printing surface may become scratched or the corners or edges of the
paper may become smudged even for the types of paper to set the lever to the right. In this case, set the paper
thickness lever to the left.
Reset the paper thickness lever to the right when you finish printing. If the paper thickness lever is not set back
to the right, the inside of the printer is more likely to get dirty due to the wider clearance between the print head
and the loaded paper. It may also reduce print quality.
If brightness is set low, increase brightness setting and try printing again.
Check5
If you are printing with a low brightness setting on plain paper, the paper may absorb too much ink and become
wavy, causing paper abrasion.
• Printing from your computer (Windows)
Check the brightness setting in the printer driver.
Adjusting Brightness
Is printing performed beyond the recommended printing area?
Check6
If you are printing beyond the recommended printing area of your printing paper, the lower edge of the paper
may become stained with ink.
Resize your original document in your application software.
Print Area
Is paper feed roller dirty?
Check7
Clean paper feed roller.
Cleaning Paper Feed Rollers
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