Document Outline

• Product introduction
  • Product comparison
  • Product views
    • Product front view
    • Product back view
  • Control panel overview
    • M125a, M125r, M125ra, M126a
    • M125nw, M125rnw, M126nw
    • M127fn, M128fn, M127fp, M128fp
    • M127fw and M128fw
    • Control-panel Home screen (touchscreen only)
• Paper trays
  • Supported paper sizes and types
    • Supported paper sizes
    • Supported paper types
  • Load the input tray
    • Tray adjustment for small paper sizes
• Print
  • Print tasks (Windows)
    • How to print (Windows)
    • Manually print on both sides (Windows)
    • Print multiple pages per sheet (Windows)
    • Select the paper type (Windows)
    • Additional printing information
  • Print tasks (Mac OS X)
    • How to print (Mac OS X)
    • Manually print on both sides (Mac OS X)
    • Print multiple pages per sheet (Mac OS X)
    • Select the paper type (Mac OS X)
    • Additional printing information
  • Web-based printing
    • HP ePrint
    • HP ePrint software
    • AirPrint
  • Set up HP Wireless Direct Printing
• Copy
  • Make a copy
  • Copy on both sides (duplex)
  • Optimize copy quality
• Scan
  • Scan by using the HP Scan software (Windows)
  • Scan by using the HP Scan software (Mac OS X)
• Fax
  • Connect and configure the product for fax
    • Connect the product
    • Configure the product
      • Configure fax time, date, and header
        • Control panel
        • HP Fax Setup Wizard (Windows)
      • Configure for stand-alone fax
      • Configure for an answering machine
      • Configure for an extension phone
    • Install the HP Fax software (Windows, optional)
  • Send a fax
    • Send a fax by dialing manually from the product control panel
    • Send a fax using the HP software (Windows)
  • Create, edit, and delete speed-dial entries
    • Create and edit speed-dial entries
    • Delete speed-dial entries
• Manage the product
  • Change the product connection type (Windows)
  • Use HP Web Services applications (touchscreen models only)
  • HP Device Toolbox (Windows)
  • HP Utility for Mac OS X
    • Open the HP Utility
    • HP Utility features
  • Product security features
    • Set or change the product password
    • Lock the product
  • Economy settings
    • Print with EconoMode
    • Configure the Sleep/Auto Off After setting
  • A Cartridge is low or Cartridge is very low message displays on the product control panel
    • Enable or disable the Very Low settings
  • Replace the toner cartridge
• Solve problems
  • Control panel help system (touchscreen models only)
  • Restore the factory-set defaults
  • Solve paper feed or jam problems
    • The product does not pick up paper
    • The product picks up multiple sheets of paper
    • Frequent or recurring paper jams
    • Prevent paper jams
  • Clear jams from the input tray
  • Clear jams in the toner-cartridge area
  • Clear jams in the output bin
  • Clear jams in the document feeder
  • Improve print quality
    • Print from a different software program
    • Set the paper-type setting for the print job
      • Check the paper-type setting (Windows)
      • Check the paper-type setting (Mac OS X)
    • Check the toner-cartridge status
    • Print a cleaning page
    • Inspect the toner cartridge for damage
    • Check the paper and printing environment
      • Use paper that meets HP specifications
      • Check the product environment
    • Check the EconoMode settings
  • Improve copy and scan quality
    • Check the scanner glass for dirt and smudges
    • Check the paper settings
    • Optimize for text or pictures
    • Edge-to-edge copying
    • Clean the pickup rollers and separation pad in the document feeder
  • Improve fax image quality
    • Check the scanner glass for dirt or smudges
    • Check the send-fax resolution setting
    • Check the lightness/darkness setting
    • Check the Error Correction setting
    • Check the Fit-to-Page setting
    • Clean the pickup rollers and separation pad in the document feeder
    • Send to a different fax machine
    • Check the sender's fax machine
  • Solve wired network problems
    • Poor physical connection
    • The computer is using the incorrect IP address for the product
    • The computer is unable to communicate with the product
    • The product is using incorrect link and duplex settings for the network
    • New software programs might be causing compatibility problems
    • The computer or workstation might be set up incorrectly
    • The product is disabled, or other network settings are incorrect
  • Solve wireless network problems
    • Wireless connectivity checklist
    • The product does not print after the wireless configuration completes
    • The product does not print, and the computer has a third-party firewall installed
    • The wireless connection does not work after moving the wireless router or product
    • Cannot connect more computers to the wireless product
    • The wireless product loses communication when connected to a VPN
    • The network does not appear in the wireless networks list
    • The wireless network is not functioning
    • Perform a wireless network diagnostic test
    • Reduce interference on a wireless network
  • Solve fax problems
    • Check the hardware setup
    • Faxes are sending slowly
    • Fax quality is poor
    • Fax cuts off or prints on two pages
• Parts, supplies, and accessories
  • Order parts, accessories, and supplies
  • Customer self-repair parts
  • Accessories
• Index