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  2. Printer tracking dots - Wikipedia

    en.wikipedia.org/wiki/Printer_tracking_dots

    Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was ...

  3. HP 2640 - Wikipedia

    en.wikipedia.org/wiki/HP_2640

    Although large, users loved the keyboard because "it had a key for everything". Similar to the HP desktop computers, it had a number of F-keys (F1 through F8) placed close to the screen. Paper templates were available for some application programs to which placed legends for these keys on the keyboard.

  4. HP LaserJet - Wikipedia

    en.wikipedia.org/wiki/HP_LaserJet

    Laser head from HP LaserJet 5L printer. Most HP LaserJet printers employ xerographic laser-marking engines sourced from the Japanese company Canon.Due to a tight turnaround schedule on the first LaserJet, HP elected to use the controller already developed by Canon for the CX engine in the first LaserJet. [6]

  5. Product key - Wikipedia

    en.wikipedia.org/wiki/Product_key

    Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters.

  6. Printer Command Language - Wikipedia

    en.wikipedia.org/wiki/Printer_Command_Language

    Printer Command Language, more commonly referred to as PCL, is a page description language (PDL) developed by Hewlett-Packard as a printer protocol and has become a de facto industry standard. Originally developed for early inkjet printers in 1984, PCL has been released in varying levels for thermal , matrix , and page printers.

  7. List of Hewlett-Packard products - Wikipedia

    en.wikipedia.org/wiki/List_of_Hewlett-Packard...

    D – HP Deskjet Dxxxx printer; D – HP Photosmart Dxxxx Single Function photo printer; F – HP Deskjet Fxxx All-in-One printer; G – HP Scanjet Gxxxx photo/flatbed scanner; K – HP Officejet Pro Kxxx color printer; M – HP Mono LaserJet Mxxxx Multifunction printer; N – HP Scanjet Nxxxx document/professional image scanner; P – HP Mono ...

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  9. HP Universal Print Driver - Wikipedia

    en.wikipedia.org/wiki/HP_Universal_Print_Driver

    This advanced print driver has the ability to discover HP print devices and automatically expose the client to device capabilities (e.g., duplex, color, finishing, etc.). HP Universal Print Driver is a Microsoft Windows-only solution with two modes: Traditional Mode and Dynamic Mode. In Traditional Mode, HP UPD behaves similarly to traditional ...