HP LaserJet MFP M135a Mono Laser Multifunction Printer

 This is HP's entry-level mono laser MFP — print, copy, and scan in one compact box. It's built for home offices and small workgroups that need reliable black-and-white output without the fuss. No wireless, no automatic document feeder, no duplex — but the print quality is sharp, the running costs are low, and it just works.

Print

• Up to 20 ppm (ISO A4) / 21 ppm (ISO letter) — quick enough for everyday documents

• First page out in 8.3 seconds from ready — barely time to refill your coffee

• Resolution tops out at 1,200 × 1,200 dpi — crisp text, clean graphics

• Manual duplex only, so you'll flip pages yourself for double-sided printing

• Monthly duty cycle of 10,000 pages, with a recommended volume of 100–2,000 pages — this is a small-office machine, not a print room workhorse

Copy & Scan

• Flatbed scanner at 600 × 600 dpi optical, up to 4,800 × 4,800 dpi enhanced

• Copies at 20 cpm, up to 99 copies at a time

• Reduce/enlarge from 25% to 400%, with ID copy, 2-up, 4-up, and auto-fit options

• Scans straight to PDF, JPG, TIFF, PNG, or BMP

• No ADF — you'll place each page on the glass manually

Paper Handling

• 150-sheet input tray, 100-sheet output bin

• Handles A4, A5, A5 (LEF), B5 (JIS), Oficio, and DL/C5 envelopes

• Custom sizes from 76 × 127 mm up to 216 × 356 mm

• Media weight range: 60 to 163 g/m²

Connectivity

• Hi-Speed USB 2.0 only — no Wi-Fi, no Ethernet

• No mobile printing support on this model (the 135w variant adds wireless)

Toner

• Uses HP 106A Black Original Laser Toner Cartridge (W1106A)

• Starter cartridge included, yields approximately 500 pages

• Replacement cartridge yields approximately 1,000 pages

Design & Power

• Compact footprint: 406 × 424 × 253 mm, weighs 7.46 kg

• 600 MHz processor, 128 MB memory

• 2-Line LCD (16 characters per line) for basic navigation

• Power draw: 300 W active, 38 W ready, 1.9 W sleep, 0.2 W off

• HP Auto-Off Technology for energy savings

Operating Systems

• Windows 8, 8.1, 10

• macOS 10.11 El Capitan through 10.14 Mojave

In the Box

• Printer, preinstalled starter toner (~500 pages), power cord, USB cable, setup guide, reference guide, warranty guide