This usually means the printer was not put into Service Mode correctly or the driver is busy. Restart both the printer and the PC.
Release both buttons. The power light should blink and then stay solid green, indicating Service Mode is active. canon service tool v6000 free download without password work
Look for the section under "Clear Waste Ink Counter." Ensure "Main" is selected in the dropdown. Click the Set button. This usually means the printer was not put