Multifunction devices (MFDs) combine various peripherals like printers, scanners, and fax machines into a single unit. These devices can connect to wired or wireless networks, phone lines, or receive print jobs from mobile devices via the web. MFDs can range from small home units to large office machines requiring dedicated space and power connections.

To use an MFD, correct printer drivers must be installed on user workstations. It's crucial to select the specific driver for the MFD model and ensure compatibility with the operating system's architecture (32-bit or 64-bit) to access all device capabilities. Always consult manufacturer documentation for the correct driver.

MFDs commonly use two PDLs: Printer Command Language (PCL) by Hewlett-Packard and PostScript by Adobe Systems. Both languages interpret print job data to render pages. It's essential to use the appropriate printer driver that matches the PDL supported and configured on the printer for optimal functionality.

MFDs operate on firmware, an embedded operating system that controls printing, scanning, and faxing. Manufacturers frequently release firmware updates to fix bugs or introduce new features. These updates are typically found on the manufacturer’s website, and specific installation instructions must be followed as the process varies by device.

MFDs offer various physical connectivity options. USB connections (Type A, B, or C) are common for direct computer connections. RJ45 Ethernet ports enable network connectivity. Some devices allow simultaneous connections using multiple interfaces. MFDs can also connect wirelessly via Bluetooth (for short distances) or 802.11 Wi-Fi in Infrastructure or Ad hoc modes.

MFDs can be shared from a directly connected computer through its operating system's sharing settings. However, this method relies on the host computer being on. Most organizations use a dedicated print server (either internal to the printer or an external device) to manage print jobs and queues, often with a web-based interface for administration.

To save paper, many MFDs support duplex printing (printing on both sides of a page), though this may require specific hardware. Users can select print orientation (portrait or landscape). Larger MFDs often have multiple paper trays for different paper types and sizes, allowing users to choose the appropriate tray during the printing process.

Print quality settings allow users to adjust resolution, choose between color or grayscale, and use color-saving modes. Higher resolutions typically use more toner or ink. Users can modify these settings to manage resource consumption based on their needs.

For security and cost control, MFDs support user authentication to limit access. Badging systems require users to physically present a badge at the printer to release print jobs, ensuring sensitive documents are not left unattended. Print job auditing helps organizations track who is printing and how much, often viewable in the printer's audit log or OS event viewer.

Secured print features allow users to set a passcode for print jobs. The job is held until the user enters the PIN at the printer, adding a layer of security without requiring external equipment. This is configured on the printer and specified in the operating system.

Beyond printing, MFDs function as input devices, primarily through flatbed scanners. Many include Automatic Document Feeders (ADF) for scanning multiple pages. Scanned documents can be emailed, sent to network shared drives (SMB/Server Message Block), or uploaded directly to cloud services like Google Drive or Dropbox.