If your Canon printer ink isn't printing properly, there could be several reasons behind it. Common causes include clogged printheads, low ink levels, or using incompatible ink cartridges. Printhead clogs can occur if the printer hasn’t been used in a while, preventing ink from flowing smoothly. Low or empty cartridges may also lead to faint or missing prints. Another possibility is u... https://www.quora.com/profile/Howard-Stark-64/How-to-refill-a-Canon-printer-cartridge-Refilling-your-Canon-printer-cartridge-is-a-great-way-to-save-money-and-reduce