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A Hewlett-Packard laser toner cartridge. A toner cartridge, also called laser toner, is the consumable component of a laser printer.Toner cartridges contain toner powder, a fine, dry mixture of plastic particles, carbon, and black or other coloring agents that make the actual image on the paper.
To print an image without a blank area around the image, the non-printing areas must be trimmed after printing. Crop marks can be used to show the printer where the printing area ends, and the non-printing area begins. [45] The part of the image which is trimmed off is called bleed.
The printer uses an ink knife to lay out a "pad", mound or streak of ink on a smooth inking plate, originally made of polished metal or stone. The ink is then rubbed with the brayer until an area is smooth enough to beat with the ink balls or roller.
Impact printers varieties include typewriter-derived printers, teletypewriter-derived printers, daisywheel printers, dot matrix printers, and line printers. Dot-matrix printers remain in common use [15] in businesses where multi-part forms are printed. An overview of impact printing [16] contains a detailed description of many of the ...
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.
All printer suppliers produce their own type of ink cartridges. Cartridges for different printers are often incompatible — either physically or electrically. Some manufacturers incorporate the printer's head into the cartridge (examples include HP, Dell, and Lexmark), while others such as Epson keep the print head a part of the printer itself.
View of the parts of a disassembled Challenge Hi-Speed Quoin. The five wedges on the part in the foreground remain fixed, while five corresponding wedges in the background part slide when a quoin key (not shown) is inserted and turned. As the corresponding wedges move against each other, the quoin expands.
Modern printers can receive data in multiple forms like vector graphics, as an image, a program written in a page description language, or a string of characters. Multiple types of printers exist: Inkjet printers An inkjet printer injects tiny droplets onto the printing medium via a series of nozzles on a printing head. Laser printers