Canon EOS-1 D X Mark II Instruction Manual page 519

Sensor Cleaning Problems
The shutter makes a sound during sensor cleaning.
If you selected [Clean nowf], the shutter will make a mechanical
sound, but no picture is taken (p.402).
Automatic sensor cleaning does not work.
If you repeatedly turn the power switch <1> / <2> within a short
time period, the <f> icon may not be displayed (p.53).
Printing-Related Problems
Direct printing does not work.
The camera does not have PictBridge, and direct printing is not
possible.
Computer Connection Problems
I cannot transfer images to a computer.
From the EOS Solution Disk (CD-ROM), install EOS Utility (EOS
software, p.550) to your computer (p.551).
Make sure EOS Utility's main window is displayed.
Troubleshooting Guide
519