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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 copiers produce on every printed page that identifies the specific device that was used ...
LaserJet as a brand name identifies the line of laser printers marketed by the American computer company Hewlett-Packard (HP). The HP LaserJet was the world's first commercially successful laser printer. [1] Canon supplies both mechanisms and cartridges for most HP laser printers; some larger A3 models use Samsung print engines.
HP categories of printers as of November 2014 are: Black and white laser printers; Color laser printers; Laser multifunction printers; Inkjet all-in-one printers; Specialty Photo inkjet printers; Business ink printers; Color inkjet printers; HP Designjet large format printers; HP Indigo Digital Presses; HP Inkjet Digital Web Press; HP latex ...
HP LaserJet 4. The HP LaserJet 4 (abbreviated sometimes to LJ4 or HP4) is a group of monochrome laser printers produced in the early to mid-1990s as part of the LaserJet series by Hewlett-Packard (HP). The 4 series has various models, including the standard LaserJet 4 for business use, the 4L for personal use and the 4P for small businesses. [1]
Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper and plastic substrates. [ 1] Inkjet printers were the most commonly used type of printer in 2008, [ 2] and range from small inexpensive consumer models to expensive professional machines.
An intentionally blank page on a PDF document from the Australian Electoral Commission. The document has 80 printable pages, and content ends on page 77. In digital documents, pages are intentionally left blank so that the document can be printed correctly in double-sided format, rather than have new chapters start on the backs of pages.
HP develops personal computers (PCs), printers and related supplies, as well as 3D printing services. [2] [1]: 5–6 Its consumer PCs have been marketed under brands such as the Essential line and Pavilion (consumer), Envy and Spectre (high-end and prosumer), and Omen . HP's business computers are marketed under the "Pro" and "Elite" prefixes.
Black-and-white. A black-and-white photo of a breadfruit, c. 1870. Black-and-white ( B&W or B/W) images combine black and white to produce a range of achromatic brightnesses of grey. It is also known as greyscale in technical settings.