HP LaserJet Pro M31w All-in-One Wireless Monochrome Laser Printer Review: Who It Fits and Who Should Skip It

What stands out

• Print speeds up to 21 pages per minute for quick document handling.
• First page out in as fast as 7.9 seconds to minimize wait times.
• Built-in wireless and Wi-Fi Direct for flexible printing from mobile devices.
• HP Smart app enables cloud printing and automated scanning tasks.
• Compact dimensions of 16.8 x 14.2 x 13.7 inches save desk space.

Who it fits

HP LaserJet Pro M31w Key Specs Explained

Print Speed: Up to 21 pages per minute

This rate determines how quickly the printer produces documents during a busy workflow. You will get a steady stream of pages for reports or batch jobs. Compare this to slower inkjet models that may take longer for the same volume. It ensures your tasks finish without long waits between sheets, keeping your daily routine efficient.

First Page Out: As fast as 7.9 seconds

This metric measures the delay from sending a print command to the first sheet emerging. A sub-ten-second start time reduces idle frustration for urgent tasks. You benefit from immediate feedback when testing settings or printing short documents. This speed is critical for small offices where quick turnarounds matter more than total volume.

Connectivity: Wireless, Wi-Fi Direct

Wireless allows the printer to join your home or office network for sharing. Wi-Fi Direct enables printing from a phone or tablet without needing a router. You can connect devices directly to the printer for temporary or secure jobs. This flexibility supports mobile workflows and reduces cable clutter on your desk.

Printer Type: All-in-One

This classification means the device combines printing, scanning, and copying in one chassis. You save space by avoiding separate machines for each function. It is ideal for users who need to digitize documents or make quick copies. This all-in-one design simplifies management and reduces the footprint on your workspace.

Print Output: Monochrome

Monochrome output restricts printing to black ink only, excluding color options. This focus lowers cost per page and simplifies maintenance compared to color laser units. You benefit from consistent text quality for letters, contracts, and forms. It is best suited for users who primarily handle text documents rather than graphics or photos.

HP LaserJet Pro M31w Design Specs

The HP LaserJet Pro M31w is a monochrome all-in-one unit finished in white. According to the listing, it measures 16.8 inches wide, 14.2 inches deep, and 13.7 inches tall. It weighs 11.9 pounds. These dimensions place it in a compact footprint suitable for small desks or tight home office corners. The white casing keeps the visual profile clean and unobtrusive in a residential setting.

The device integrates print, scan, and copy functions into a single chassis. This layout reduces clutter by eliminating the need for separate machines. You can place it on a standard work surface without requiring a dedicated equipment rack. The all-in-one design means you access scanning and copying directly through the same physical unit used for printing.

Connectivity relies on built-in wireless capabilities and Wi-Fi Direct. This allows you to share the printer across a network or print directly from a smartphone without an active internet connection. The compact size and wireless features make it practical for users who need a reliable document tool in a limited space. The finish is simple, focusing on function over decorative elements.

Setup And Everyday Use Guide

You set up the HP LaserJet Pro M31w by downloading the HP Smart app on your mobile device. The listing states this app handles the wireless installation process. You do not need a computer for the initial connection. The printer supports built-in wireless capabilities for network sharing. It also includes Wi-Fi Direct. This feature allows you to print from a smartphone or tablet without an existing network. The device is compatible with Alexa. This integration lets you use voice commands for basic tasks. Daily use relies heavily on the HP Smart app. You use it to print from the cloud. The app also automates scanning tasks. You can scan files directly to PDF format. Emailing scanned documents is another supported function. The copy function handles identification cards efficiently. It automatically places both sides of the card onto one side of paper. Print speeds reach up to 21 pages per minute. The first page outputs in as fast as 7.9 seconds. This reduces wait time during busy periods. The printer uses HP Auto-On/Auto-Off technology. This intelligence turns the unit on when needed. It turns off when idle to save energy. You order toner easily through the app. The all-in-one design consolidates print, scan, and copy duties. This setup suits users who prefer mobile management over desktop software. The wireless connectivity ensures flexibility in placement. You are not tethered to a specific desk location. The compact form factor aids in saving space. The one-year limited hardware warranty provides basic coverage. You also get 24-hour free HP Web support. These features combine to create a streamlined workflow for small teams.

Key Checks Before Buying

Before you buy the HP LaserJet Pro M31w, consider its specific role in your workflow. This monochrome laser printer handles print, scan, and copy tasks efficiently. You must check that your mobile devices are compatible with the HP Smart app for full functionality. The listing notes it works with Alexa, which may interest some users but is not essential for printing. Since it is an all-in-one unit, you do not need separate scanners or copiers. However, you should verify your wireless network stability, as the printer relies on built-in wireless and Wi-Fi Direct. Keep in mind that toner replacement is part of regular upkeep. This compact device fits well alongside other options in Laser Printers & Office Machines for users prioritizing space savings and mobile convenience. It suits those who need reliable, fast monochrome output without color capabilities.

Check before you buy

• Verify mobile device compatibility with the HP Smart app
• Confirm your workspace has stable wireless network access
• Check if Alexa integration is needed for your setup
• Ensure you have space for its 16.8-inch width

The product at a glance

1

HP LaserJet Pro M31w Wireless All-in-One

Best for: Small home offices needing fast monochrome wireless printing

Print Technology

Laser

Print Output

Monochrome

Printer Type

All-in-One

Supported Functions

Print, scan, copy

Print Speed

Up to 21 pages per minute

Connectivity

Wireless, Wi-Fi Direct

View on Amazon: HP LaserJet Pro M31w Wireless All-in-One Affiliate link

The HP LaserJet Pro M31w is a compact monochrome laser printer offering print, scan, and copy functions. It delivers speeds up to 21 pages per minute with a first-page-out time of 7.9 seconds. This all-in-one device supports wireless connectivity and Wi-Fi Direct. It is designed for users who need professional-quality documents in a small footprint. The unit weighs 11.9 pounds and measures 14.2 inches in length.

Pros

• Print speeds up to 21 pages per minute
• First page out in as fast as 7.9 seconds
• Supports wireless and Wi-Fi Direct connectivity
• Monochrome laser print technology for professional results

Cons

• Monochrome output only, no color printing
• No physical display panel for direct control
• Lacks automatic duplex printing support

Good fit if

• You need a small footprint for limited desk space
• You primarily print black-and-white documents
• You want wireless printing from mobile devices

Skip if

• You require color printing capabilities
• You need to print double-sided pages automatically
• You prefer physical buttons over app control

Verdict: The HP LaserJet Pro M31w Compact Monochrome All-in-One is a practical choice for home offices needing fast, wireless black-and-white printing. It fits users who prioritize speed and compact size over color features.

Specifications side by side

Frequently asked questions

See also

• hp laserjet pro m31w wireless alternatives
• best HP monochrome laser printers
• best HP all in one desktops with Windows 11 Pro
• best HP all in one computers