HP LaserJet 137fnw Monochrome Wireless Multifunction Printer with Fax, Self‑Healing Wi‑Fi, Mobile Printing via HP Smart App, Compact Small MFP – Print, Copy, Scan, Fax, Fast Speeds up to 21 ppm Black, 150‑Sheet Input, 128 MB RAM | 4ZB84A

The HP LaserJet MFP 137fnw (model 4ZB84A) is a compact, monochrome multifunction printer designed for small offices and home use, offering print, copy, scan, and fax functions with wireless connectivity and speeds up to 20–21 ppm. It’s reliable for everyday black-and-white document workflows but lacks colour printing.

Key Features

• Multifunction capability: Print, copy, scan, and fax in one device.

• Print speed: Up to 20–21 ppm for black-and-white documents.

• High resolution: Up to 1200 × 1200 dpi for sharp text.

• Automatic document feeder: 40-sheet ADF for hands-free scanning and copying.

• Connectivity options: Wi-Fi, Ethernet, and USB 2.0.

• Mobile printing: Supports HP Smart App for printing directly from smartphones and tablets.

• Duty cycle: Up to 10,000 pages per month, suitable for light to moderate workloads.

Quick Specs

Advantages

• Compact footprint ideal for small desks and offices.

• Fast black-and-white printing for everyday documents.

• Wireless and mobile printing support for modern workflows.

• Affordable entry-level laser MFP compared to larger office models.

• Hands-free scanning/copying with 40-sheet ADF.

Limitations & Risks

• No colour printing — strictly monochrome output.

• No duplex printing (manual double-sided only).

• Limited paper capacity (150 sheets may require frequent refills).

• Not suited for heavy-duty enterprise use despite 10,000-page duty cycle.

Best Use Cases

• Home office: Efficient for daily black-and-white documents.

• Small business: Reliable for invoices, reports, and correspondence.

• Students: Affordable option for assignments and study materials.