The difference between 32-bit and 64-bit drivers is not just a number—it is a fundamental architectural difference. A 32-bit operating system cannot communicate with a 64-bit printer driver, and vice versa. If you attempt to install the wrong architecture, Windows will either reject the driver outright or the printer will print garbled text, crash the print spooler, or simply not respond.
It seems you are looking for the (software) for the Canon LBP 2900B printer on a 32-bit operating system (likely Windows 7, 8, 10, or older). canon 2900b driver 32-bit