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  2. Wi-Fi Protected Setup - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_Protected_Setup

    Some devices with dual-band wireless network connectivity do not allow the user to select the 2.4 GHz or 5 GHz band (or even a particular radio or SSID) when using Wi-Fi Protected Setup, unless the wireless access point has separate WPS button for each band or radio; however, a number of later wireless routers with multiple frequency bands and ...

  3. List of printing protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_printing_protocols

    A printing protocol is a protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers).It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.

  4. Fix problems signing in to AOL Mail - AOL Help

    help.aol.com/articles/fix-problems-signing-in-to...

    Sometimes the old "turn it off and on again" actually works. In this case, try completely signing out of your account then sign back in. Many times, this will help, especially in cases of bad passwords or some simple browser issues.

  5. Error message - Wikipedia

    en.wikipedia.org/wiki/Error_message

    Help; Learn to edit; Community portal; Recent changes; Upload file; Special pages

  6. Fix issues syncing AOL accounts with older third-party Mail ...

    help.aol.com/articles/fix-issues-syncing-aol...

    If you're experiencing issues syncing your AOL account with older third-party mail apps like Kindle Fire's default mail app or the Mac OS mail app:

  7. lp0 on fire - Wikipedia

    en.wikipedia.org/wiki/Lp0_on_fire

    Due to the potentially hazardous conditions which could arise in early line printers, UNIX displayed the message "on fire" to motivate any system operator viewing the message to go and check on the line printer immediately. [2] In the early 1980s, Xerox created a prototype laser printer engine and

  8. Printer Job Language - Wikipedia

    en.wikipedia.org/wiki/Printer_Job_Language

    Printer Job Language (PJL) is a method developed by Hewlett-Packard for switching printer languages at the job level, and for status readback between the printer and the host computer. PJL adds job level controls, such as printer language switching, job separation, environment, status readback, device attendance and file system commands.

  9. Line Printer Daemon protocol - Wikipedia

    en.wikipedia.org/wiki/Line_Printer_Daemon_protocol

    The Line Printer Daemon protocol/Line Printer Remote protocol (or LPD, LPR) is a network printing protocol for submitting print jobs to a remote printer. The original implementation of LPD was in the Berkeley printing system in the BSD UNIX operating system; the LPRng project also supports that protocol.