Make the print darker

Go into the advanced settings before you print.

Unfortunately that is typical. You can set the copies to be darker, but often that just introduces gray areas that should be white.

Better to just scan and then print the pdf.

If you mean can the printer print onto film slide to display on an overhead projector then I'm almost sure it can, however ensure the slides are of reputable quality i.e. Xerox slide material because the material will fuse and stick inside the fuser causing an expensive mess to rectify.
Good Luck.

go into the menu and look for copy/print settings. you should see an option to lighten or darken the copy. It should look like a ascending /descending slider. tap to the left for lighter or to the right for darker

if your referring to photocopying but printout is darker, it doesnt work. canon copiers produce copies like the original or better than the original sometimes. try to scan the file in custom mode and adjust the brightness and contrast and click preview to view the outcome before scanning it then print it later

plugged into a surge protector can cause issues with the power supply. I unplugged from the protector and went directly to the wall outlet

you need to go to your printer settings and make sure it is set as the default printer for everything. Make sure it is also set as your default scanner. you may also try lightening the image with the lighter/darker setting on the machine. if this continues, you may want to see if a section of the light is burnt out. this wiill cause darkness on scan & copies but not printing from the c drive. Make sure the machine is lighting up completely when is scans or copies. If part of the lighting is burnt out it will be a fix or replace situation.

A.PLEASE TRY CLEANING THE CIS SCANNING UNIT.. HAPPY PRINTING OMNIPRSENT

Whatever scanning utility you are using, set it to Black and white, not grayscale nor colour! regards, babb