The Canon i SENSYS LBP621Cw driver allows Windows to communicate with your color laser printer and send documents with the correct print settings. Installing a compatible Canon driver helps you manage paper size, choose color or black-and-white output, and resolve printing problems caused by a missing or incorrect driver.

Key Features

• Windows printing support: Connects the printer to Windows applications so you can print documents, spreadsheets, presentations, and other everyday files.
• Color and quality controls: Provides access to available color modes and print-quality settings, helping you balance clear text and graphics with routine printing needs.
• Paper and layout options: Lets you select supported paper sizes, orientation, and page-layout settings to match your document and loaded media.
• Connection setup: Supports printer configuration for a compatible USB or network connection, depending on the driver package and your chosen setup.

How to Install

1. Check your Windows version. Confirm whether your computer runs Windows 11, 10, 8, or 7, and check its system type where applicable. Select a Canon i SENSYS LBP621Cw driver package that explicitly supports your version and architecture; compatibility can vary between packages.

1. Prepare the printer. Turn it on, load paper, and check that no error is displayed. For network printing, connect the printer and computer to the same local network. For USB installation, follow the installer’s guidance on when to attach the cable.

1. Download and open the driver package. Save the compatible file to your computer. If it is compressed, extract its contents before launching the setup program. Approve the Windows permission prompt if requested.

1. Follow the installation prompts. Choose the appropriate connection method and select your printer when it appears. If a network search does not find it, confirm its connection and use an IP-address option if the installer provides one.

1. Verify the installation. Open Windows printer settings, select the Canon printer, and print a test page. Review the default paper size and color preferences before printing your first document.

If printing still fails, check that the correct printer queue is selected and that the device is not paused or offline. When replacing an older driver, remove only the outdated entry associated with this printer to avoid disrupting other installed devices.

Common Issues and Fixes

• Install fails or rolls back: Disconnect the LBP621Cw, remove any existing Canon printer entry and driver package in Print Management, then run the downloaded setup as administrator. Temporarily pause antivirus and use the full Canon package, not the Windows Update basic driver.
• Printer not detected: For USB, use a direct rear port and a known-good cable. For network, confirm the printer and PC are on the same subnet, print a network config page, and add a Standard TCP/IP port using the printer’s IP; avoid WSD if discovery is unreliable.
• Driver/version conflicts: Old UFR II or generic drivers can cause missing color/duplex options. In Print Management, delete unused Canon driver packages, reboot, and install the latest LBP621Cw UFR II driver matching Windows version and architecture.