Do not use "Driver Booster" or "Driver Easy." These apps often flag the L140 driver as "outdated" and try to install a driver for a completely different Canon model (like the MF series), which will brick your functionality.
: Supports Windows (up to Windows 11), Mac OS X (including legacy versions like 10.5), and Linux. Troubleshooting & Resources i-SENSYS FAX-L140 Driver - Canon Community canon fax l140 printer driver