I cant print,scan & copy

Hi I have almost 30 inkjet printers...

Usual problem when that happens:
After lots of printing the PAPER FEED ROLLERS usually made of rubber will become very shiny with wear. So instead of feeding the paper they slip like a car on ice.
The printer not knowing prints anyway and wastes your expensive ink.

Solution:
Scuff the paper feed rollers to help traction.

Heres how:
Using a disposable nail file (sandpaper type)
Lift Lid and holding sideways against each roller (usually 3-4)
Press PAPER FEED.
It will scuff as it rotates - Usually does the trick!

Hi I have almost 30 inkjet printers...

Here is possible problem:
From time to time I have the same problem it usually happens when the rubber paper feed rollers become very shiny so the paper does not feed properly. The printer not knowing continues to print and blanks appear.

Solution:
The paper feed rollers just need to be scuffed to allow better tracktion.

Heres how:
Use a disposble nail file *sandpaper type
Lift lid and hold nail file against each paper feed roller and press paper feed button. Scuff roller as it rotates.
Usually does the trick !

Try reinstalling the drivers and/or replacing the cables. Also look for any debris or tiny piece of paper that may be stuck between the rollers..