For Canon mp210. Error light blinks. Either E22 or E2
This is a Carriage error take a good look at the carriage that the inks are in and see if they are sitting ok and also do the next incise there some thing there stopping it from moving.
Generally when this happens, something has fallen into the printer, or a piece of paper has been jammed in there.
First step, remove the ink cartridge, and turn the printer upside down and gently shake it, see if anything comes out.
If nothing goes, or you can't hear anything rattling around, get a piece of cardstock paper (60lb or heavier) and gently push this through the printer, to see if it will help push out what might be stuck in there.
And gave the rode that the ink slides on a good clean and maybe a bit oil on cloth and wipe the rod with it.
Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks