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A HP LaserJet 4000n printer. The LaserJet 4000/4050 and their respective variants were the first printers released in the 4000 series. The LaserJet 4000 series printers print letter paper at 17 pages per minute, and can be set to print at 600 dpi or 1200 dpi, although when set to print at true 1200 dpi, the printer runs at reduced speed.
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 ...
HP LaserJet. The LaserJet 500 Plus (model 2686D) was the largest of the early LaserJet series. LaserJet is a line of laser printers sold by HP Inc. (originally Hewlett-Packard) since 1984. The LaserJet was the world's first commercially successful laser printer. [ 1 ]
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]
A copyright page with the printer's key underlined. This version of the book is the eighteenth printing. The printer's key, also known as the number line, is a line of text printed on a book's copyright page (often the verso of the title page, especially in English-language publishing) used to indicate the print run of the particular edition.
Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The earliest known form of printing evolved from ink rubbings made on paper or cloth from texts on stone ...
For example, if a book with 318 pages of content is printed using 32-page signatures, it will require 10 signatures, 320 pages in total. At the very end of the book – that is, at the end of the last signature – there will be two unused (blank) pages. If a printer's document processor has been designed to skip completely blank pages, notices ...
HP LaserJet 5. The HP LaserJet 5 is a group of monochrome laser printers produced in the mid-1990s as part of the LaserJet series by Hewlett-Packard (HP). [ 1 ] It is the successor to the HP LaserJet 4 series of printers. After the LaserJet 5 series, however, HP introduced a new naming convention for its LaserJet line.