To have a better understanding of your issue, please let everyone know some basic facts regarding your PIXMA MX870 and computer setup. For example, what operating system do you have installed on your computer, and how does the PIXMA MX870 connect to your computer? Once we have more information, our Canon Forum members and our Subject Matter Experts will be able to assist you with suggestions appropriate for your specific issue.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM