Canon MAXIFY MB2750 Online Manual page 1275

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Cause
Prevent paper abrasion has been set.
What to Do
If you continue printing in the current setting, tap Yes.
Prevent paper abrasion may reduce the print speed.
If you disable this setting, tap No. Touch the HOME button, select Setup, Device settings, and Print
settings, and then set Prevent paper abrasion to OFF.
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