deep cleaning

Hello, a new user here! :frow Issue description: After roughly three weeks with no printing task, I did printout nine pages of document yesterday and noticed faded yellow color in the output result. Then decided to perform Nozzle Check operation. You can see the results in the images below...

Hello this is my first post, and of course, it is a problem... My printer, a Canon iP3000, will not print in Black until it has been through a few cleaning cycles and possibly a couple of "deep cleaning" procedures as well. The machine then works fine for a few hours, but the next day, it will...