imageCLASS MF643Cdw How to set scanning resolution

[thowa]

How do I set the scanner resolution for emailing PDF?

I can only find settings for "density", "sharpness", and "file size". But it is not clear, what these settings actually do and there is no significant change visible when I adjust those settings.

I would much rather set a scanner resultion and compression level manually instead of murky "adjust quality" settings where I don'T know what they actually do...

[mreg]

I've always looked at LCD panel features as a very basic way of quickly interfacing with a complex device, and that to utilize all of the device's capabilities you need to use the software suite.