Canon MARK IV User Manual (en)

Preparing to Print
Playback the image.
Press the <x> button.
The image will appear, and the <w> 
icon will appear on the upper left to 
indicate that the camera is connected 
to a printer.
Movies cannot be printed.
The camera cannot be used with printers compatible only with CP Direct 
or Bubble Jet Direct.
Do not use any interface cable other than the one provided.
If there is a long beeping sound in step 5, it indicates a problem with the 
printer. To find out what’s wrong, do the following:
1. Press the <x> button to playback the image.
2. Press <0>.
3. On the print setting screen, select [Print].
The error message will be displayed on the LCD monitor (p.198).
You can also print RAW images taken by this camera.
If you use the battery to power the camera, make sure it is fully charged. 
With a fully-charged battery, printing up to approx. 6 hours is possible.
Before disconnecting the cable, turn off the camera and printer first. Hold 
the plug (not the cord) to pull out the cable.
For direct printing, using AC Adapter Kit ACK-E4 (sold separately) to 
power the camera is recommended.