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Sunday, 17 September 2006

Printer Parts

rinter parts are like: Spring, Lower Roller Bushing, Roller, Lever, Spring, Leaf, Right Cover, Cap Roller, Upper Fuser Roller, Separation Claw, Sep Claw Cover, Delivery Roller, Thermoswitch, Arm, Top Cover,Separation Pad, Ozone Filter, Thermistor/PCA Sensor Assy, Pickup Roller, Assy, Fuser Assembly, Cleaning Wand, Delivery Coupler Assembly,
Lower Fan, Upper Fan, Heating Lamp, Fuser Gear, Gear, Fuser, Heat Bushing, Spring, Arm Gear, Spring, Drive Cam, Spring, Fuser.

Parts and supplies for toner cartridges: Doctor Blade, Odyssey, Gear, Toner, Wiper Blade.

Printer Toner


Toner is a powder used in laser printers and photocopiers which forms the text and images on the printed paper. In its early form it was simply carbon powder. In order to improve the quality of the printout the individual carbon particles were blended in a polymer. The polymer particles can be melted by the heat of the fuser, causing it to bind to the fibers in the paper.

Toner-based printers work Xerographic principle that is at work in most photocopiers: by adhering toner to a light-sensitive print drum, then using static electricity to transfer the toner to the printing medium to which it is fused with heat and pressure. The most common type of toner-based printer is the laser printer, which uses precision lasers to cause adherence. Laser printers are known for high quality prints, good print speed, and a low cost-per-copy; they are the most common printer for many general-purpose office applications. They are far less commonly used as consumer printers due to a high initial cost. Laser printers are available in both color and monochrome varieties. Another toner based printer is the LED printer which uses an array of LEDs instead of a laser to cause toner adhesion to the print drum.

Printer Ink


An ink is a liquid containing various pigments and/or dyes used for colouring a surface to render an image or text. Ink is used for drawing or writing with a pen or brush. Thicker inks, in a paste form, are used extensively in letterpress and lithographic printing.

Inkjet printers spray very small, precise amounts of ink onto the media. Inkjet printing (and the related bubble-jet technology) are the most common consumer print technology; as high-quality inkjet printers are inexpensive to produce. Virtually all modern inkjet printers are color devices; some, known as photo printers, include extra pigments to better reproduce the color gamut needed for high-quality photographic prints.

Inkjet printers consist of nozzles that produce very small ink bubbles that turn into tiny droplets of ink. The dots formed are the size of tiny pixels. Ink-jet printers can print high quality text and graphics. They are also almost silent in operation. Inkjet printers have a much lower initial cost than do laser printers, but have a much higher cost-per-copy, as the ink needs to be frequently replaced.

Inkjet printers are also far slower than laser printers. Inkjet printers also have the disadvantage that pages must be allowed to dry before being aggressively handled; premature handling can cause the inks (which are adhered to the page in liquid form) to run.

Printer Cartridge


In various types of electronic equipment, a cartridge can refer one method of adding different functionality or content (e.g. a video game cartridge), or a method by which consumables may be replenished (e.g. an ink cartridge for a printer). The term cartridge tends to be applied loosely to a large range of techniques which conform to this general description.

An ink cartridge is a replaceable component of an inkjet printer that contains the ink and sometimes the printhead itself that is spread on paper during printing.

Each ink cartridge contains one or more partitioned ink reservoirs, electronic contacts and a chip that communicates with the printer.
Inside each partition of the ink reservoir is a tiny metal plate. In response to a signal given by the printer, a tiny current flows through the metal causing it to warm up. The ink immediately surrounding the heated plate is vapourised. As a consequence, the total volume of the ink exceeds that of the cartridge. An ink droplet falls out of the cartridge onto the paper. This process takes place in a matter of milliseconds.

Last Updated ( Monday, 09 October 2006 )
 
 
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