Before proceeding, please note that the Canon imageCLASS LBP226dw is a relatively new printer model. As such, Canon does not officially support Windows 7 for this specific device. The manufacturer drivers are designed for Windows 10, Windows 11, and Windows Server 2019.
Use Canon’s European/global support site where legacy drivers are kept. Download the 32-bit Windows 7 driver package labeled for LBP226dw / UFR II: https://www.canon-europe.com/support/consumer_products/products/printers/laser/i-sensys_lbp226dw.html canon lbp226dw driver windows 7 32bit link
Canon no longer hosts many older drivers on their global site for Windows 7, but regional Canon support pages sometimes still have them.
Try this official Canon USA link (sometimes works for legacy OS): Important Compatibility Notice
Before proceeding
You can use the Generic Plus UFR II Printer Driver, which is the standard driver for this model: and Windows Server 2019. Quick summary