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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 photocopiers produce on every printed page that identifies the specific device that was ...
Carriage control tape on an IBM 1403 printer. One channel punch is visible in this photo. A carriage control tape was a loop of punched tape that was used to synchronize rapid vertical page movement in most IBM and many other line printers from unit record days through the 1960s. The tape loop was as long as the length of a single page.
In printing, bleed is printing that goes beyond the edge of where the sheet will be trimmed. In other words, the bleed is the area to be trimmed off. The bleed is the part on the side of a document that gives the printer a small amount of space to account for natural movement of the paper during guillotining, [1] and design inconsistencies ...
Within the commercial printing industry, the job of stripping involves arranging and joining film negatives as part of the process of preparing printing plates. [1] In the UK, the same operation is termed "planning" and film positives are used, rather than the negatives in the USA.
Many laser printers can print on both sides of the paper (duplex printing), which is not possible with continuous stationery. Standard perforations are 5/32 inch in diameter (3.96875 mm, sometimes called 4 mm) and are spaced at 1 ⁄ 2 inch (13 mm) center-to-center. Tear-off horizontal perforations at page top/bottom are exactly in-between ...
Dot matrix printers are divided into two main groups: serial dot matrix printers and line matrix [1] printers. Line matrix mechanism A serial dot matrix printer has a print head that runs back and forth, or in an up and down motion, on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like the print ...
Imprint block contains the name of printer in either bottom or top margin of the stamp sheet. Plate Block. The most commonly collected kind of block is the plate block, which includes the part of the margin where the serial numbers of the printing plates may be found. [2] Gutter Block
Section of a platen printing press in use. The platen is the sturdy plate which applies the pressure to the paper and type. A platen (or platten) is a platform with a variety of roles in printing or manufacturing. It can be a flat metal (or earlier, wooden) plate pressed against a medium (such as paper) to cause an impression in letterpress ...