HP LaserJet MFP M139-M142 Printer series
Number of print cartridges
Print speed black (ISO, A4)
Normal: Up to 20 ppm   Measured using ISO/IEC 24734, excludes first set of test documents. For more information see http://www.hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity.
Print speed color (ISO, A4)
  Measured using ISO/IEC 24734, excludes first set of test documents. For more information see http://www.hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity.
First page out (ready)
Black: As fast as 8.5 sec   Measured using ISO/IEC 17629. For more information see http://www.hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity.
Duty cycle (monthly, A4)
Up to 8,000 pages Duty cycle is defined as the maximum number of pages per month of imaged output. This value provides a comparison of product robustness in relation to other HP LaserJet or HP Color LaserJet devices, and enables appropriate deployment of printers and MFPs to satisfy the demands of connected individuals or groups.
Recommended monthly page volume
100 to 1000 HP recommends that the number of printed pages per month be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.
Print quality black (best)
Black: Up to 600 x 600 dpi Color:
Mobile printing capability
 Wi-Fi® is a registered trademark of Wi-Fi Alliance®. Wireless operations are compatible with 2.4 GHz operations only. Learn more at www.hp.com/go/mobileprinting. Wireless performance is dependent upon physical environment and distance from the access point. AirPrint and the AirPrint Logo are trademarks of Apple® Inc. The Mopria® Logo is a registered and/or unregistered trademark of Mopria Alliance, Inc. in the United States and other countries. Unauthorized use is strictly prohibited. Requires the HP Smart app download. For details on local printing requirements see www.hp.com/go/mobileprinting. Certain features/software are available in English language only, and differ between desktop and mobile applications. Instant Ink subscription may be required. Instant Ink not available in all countries. See details at www.hptonerservice.com. Internet access required and must be purchased separately. HP account required for full functionality. List of supported operating systems available in app stores. Fax capabilities are for sending a fax only, and may require additional purchase. For more information, see: www.hpsmart.com/mobile-fax 
1 Hi-Speed USB (compatible with USB 2.0 specifications)
Compatible operating systems
Windows 11; Windows 10; Windows 7; macOS 10.14 Mojave; macOS 10.15 Catalina; Linux Not supporting Windows® XP (64-bit) and Windows Vista® (64-bit), Windows 8, 8.1. Full solution software available only for Windows 7, Windows 10 and newer; For Windows Server 2008 R2 64-bit, 2012 64-bit, 2012 R2 64-bit, 2016 64-bit only print driver is installed. Windows RT OS for Tablets (32 & 64-bit) uses a simplified HP print driver built into the RT OS; Linux systems use in-OS HPLIP software.
64 MB Flash ROM; 64MB DDR1; 32 KB NVRAM
Media sizes supported
A4; A5; A6; envelopes (C5, DL); custom
Media sizes, custom
105 x 148 to 216 to 355.6mm
Paper handling input, standard
150-sheet input tray
Paper handling output, standard
100-sheet output bin
Maximum output capacity (sheets)
Up to 100 sheets
Plain paper, envelope, postcard, label
Scan file format
JPG, RAW (BMP), PNG, TIFF, PDF
Recommended monthly scan volume
250 to 2000 HP recommends that the number of pages per month of imaged output be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.
Scan input modes
Scanning via HP LaserJet Software Scan or TWAIN-compliant or WIA-compliant software
Copy resolution (black text)
600 x 400 dpi
Copy reduce / enlarge settings
25 to 400%
220V - 240V nominal @ +/-10% (min 198V, Max 264V), 50 - 60Hz nominal +/- 3Hz (min 47Hz, max 63Hz)
357 watts (active printing), 2.4 (ready), 1.0 watts (sleep), 0.05 watts (Auto-off Manual on) , 0.05 watts (manual off), 1.0 watts (Auto-off/Wake on USB) Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. This will damage the printer and void the product warranty. Power consumption values typically based on measurement of 115V device.
Sustainable impact specifications
Recyclable through HP Planet Partners; Contains post-consumer recycled plastic
Operating temperature range
15 to 32.5ºC
Recommended operating humidity range
30 to 70% RH
Acoustic power emissions (ready)
2.3 B(A) Configuration tested: base model, simplex printing, A4 paper at an average of 20 ppm
Acoustic pressure emissions bystander (active, printing)
Minimum dimensions (W x D x H)
360 x 264 x 197 mm
Maximum dimensions (W x D x H)
360 x 427 x 347 mm
Package dimensions (W x D x H)
398 x 248 x 306 mm
Pallet dimensions (W x D x H)
AMS: 1200 x 1000 x 2603 mm; EMEA, AP: 1200 x 1000 x 2297 mm
AMS: 685.1 kg; EMEA, AP: 602.3 kg
Count of layers in pallet
AMS: 8; EMEA/APJ: 7
What's in the box
Printer; Power cord; Toner Cartridge; Setup Poster; Reference Guide; Warranty Guide; Flyer  For yield information on the cartridge included with your printer, see http://www.hp.com/go/toneryield. Yield values measured in accordance with ISO/IEC 19752 and continuous printing. Actual yields vary considerably based on images printed and other factors.
No, please purchase USB cable separately
No CD in box. Download software from hp.com or 123.hp.com
One-year limited warranty