Hi Will09,
Please follow the steps on this page to perform the maintenance procedure to resolve your printing issue:
G4210 > Maintenance > If Printing Is Faint or Uneven > Maintenance Procedure
If you continue to have difficulties, please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below to log into your My Canon account:
https://mycanon.usa.canon.com
Once logged in, click on your PIXMA G4210 and then click on the Product Support button. When that page loads, click on either the Phone Support button or the Chat Support button to access support.
Did this answer your question? If so, please click the Accept as Solution button below so that others may find the answer as well.
