How do I know when to change the toner cartridge?
To monitor your toner levels and know when a replacement is needed for the HP LaserJet MFP M139e-M142e, you should use the HP Smart…
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hp LaserJet MFP M139e-M142e Printer User Guide — questions & answers
Read product questions and troubleshooting answers linked to hp LaserJet MFP M139e-M142e Printer User Guide.
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How do I connect my HP LaserJet MFP M139e-M142e to a laptop without using Wi-Fi or Bluetooth, and where can I find Polish instructions?
To connect your HP LaserJet MFP M139e-M142e to your laptop without using Wi-Fi or Bluetooth, you should use a USB cable (sold separately). Please…