Hi nvargas,
Please try performing a print head alignment on the unit by following the steps provided here to see if this will resolve the issue being experienced. We also recommend trying to print the photos using the Easy-PhotoPrint program. The Easy-PhotoPrint program is the program that Canon developed to easily print quality photos from the computer.
If you do not have the Easy-PhotoPrint program installed on your computer, it can be downloaded from the Canon USA website free of charge. Please click here to go to the Drivers and Downloads page for the PIXMA MX922. Once on the page, please do the following:
1. Verify that the operating system detected in the "OPERATING SYSTEM" field is correct, and if it is not, please click the drop-down menu to select your operating system. Please note that you may need to scroll up or down in the list to select your operating system.
2. Below the box labeled SOFTWARE, please locate and download the EASY-PHOTOPRINT EX software.
3. Once the file has been downloaded, please temporarily disable any antivirus or firewall software that may be on your computer and then double-click on each the files and follow the prompts to install the program on your computer. Once the program is installed successfully, the protection software can be re-enabled.
Should you still experience difficulty, we ask that you please contact a Canon technical support representative here for further assistance. A representative will be happy to assist you free of charge.