Non Impact Printers

Description
A word project on non-impact printers. FYBMS Sem1...

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SGM College of Commerce and Management

Name: Class:

Jainam J Jhaveri F.Y.B.M.S

Roll No: 34 Division: A

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Printers:

A printer is a peripheral which produces a text and/or graphics of documents stored in electronic form, usually on physical print media such as paper or transparencies. Many printers are primarily used as local peripherals, and are attached by a printer cable or, in most newer printers, a USB cable to a computer which serves as a document source.

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Printers
Impact Dot Matrix Daisy Wheel Line Printer Typewriter-derived Pen based plotter Non-Impact Thermal Laser Ink Jet Bubble Jet Ultra Violet

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Impact Printers:

To create text or image by physically make the print head to press the ink ribbon and cause the ink deposition on the paper in desired form is called impact type. Normally it is quite louder in nature when compared to other types of printers. The well known example for impact type is Dot Matrix and Daisy wheel . With this type of printer something strikes paper & ribbon together to form a character, like a typewriter.

Advantages:

Less expensive Fast (some types) Can make multiple copies with multipart paper Disadvantages: Noisy! Print quality lower in some types. Poor graphics or none at all.

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Non-Impact Printers:

Non-impact printers are generally much quieter than impact printers since they don't physically strike the page. For example, inkjet printers spray tiny drops of ink onto the page, while laser printers use a cylindrical drum that rolls electrically charged ink onto the paper. Both of these methods are non-impact and provide an efficient printing process that produces little sound. The low impact nature of inkjet and laser printers also means they are less likely to need maintenance or repairs than earlier impact printers.

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Non-Impact printers produce text or images on paper without striking the paper physically are called as non-impact type. These are not louder when compared to other types of printers. The well known example of this type is Thermal printer, lasers and inkjets . Some of the latest non-impact printers in market are HP Laser Jet and Apple Laser Writer. The technologies commonly used in modern and personal home based are non-impact type. These technologies can print in both mono chrome and colour. The following category can be classified under non-impact printing. 1. Thermal 2. Laser 3. Inkjet 4. Bubble Jet 5. Ultra Violet

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Thermal Printers:
A thermal printer produces a printed image by selectively heating coated thermochromic paper, or thermal paper as it is commonly known, when the paper passes over the thermal print head. The coating turns black in the areas where it is heated, producing an image. Two-color direct thermal printers can print both black and an additional color (often red) by applying heat at two different temperatures.

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Laser Printer:
A laser printer is a common type of computer printer that rapidly produces high quality text and graphics on plain paper. As with digital photocopiers and multifunction printers (MFPs), laser printers employ a xerographic printing process, but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor.

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Inkjet:
An inkjet printer is a type of computer printer that creates a digital image by propelling droplets of ink onto paper. Inkjet printers are the most commonly used type of printer and range from small inexpensive consumer models to very large professional machines, which can cost up to thousands of dollars.

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As Compared to earlier consumer-oriented color printers, inkjets have a number of advantages. They are quieter in operation than impact dot matrix or daisywheel printers. They can print finer, smoother details through higher print head resolution, and many consumer inkjets with photographic-quality printing are widely available. In comparison to more expensive technologies like thermal wax, dye sublimation, and laser printing, inkjets have the advantage of practically no warm up time, and lower cost per page. However, low-cost laser printers can have lower per-page costs, at least for black-and-white printing, and possibly for color. For some inkjet printers, monochrome ink sets are available either from the printer manufacturer or from third-party suppliers. These allow the inkjet printer to compete with the silver-based photographic papers traditionally used in black-and-white photography, and provide the same range of tones – neutral, "warm" or "cold". When switching between full-color and monochrome ink sets, it is necessary to flush out the old ink from the print head with a cleaning cartridge. Special software or at least modified device drivers are usually required, to deal with the different color mapping.

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Bubble Jet:

Bubble jet printing technology was designed by Cannon for use in its consumerlevel printers. Bubble jet is a sister technology to ink-jet technology and in many ways is very similar, which is why the terms are often used interchangeably. However, there are some important differences between bubble jet printers and ink jet printers. Bubble jet printers look very much like ink jet printers. Both printers use pressure to fire tiny droplets of ink from nozzles onto the paper. There is circuitry that tells the print head what color ink to fire, when and where to fire it, and how much to fire. Those microscopic droplets are so small that the picture or text it appears crisp and clear on paper.

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Ultra Violet:
Flatbed Digital printing is the reproduction of digital images using inkjet printing, typically on plastic or paperboard, although a wide variety of materials can be printed (common, photographic paper, film, cloth, plastic, etc.). Flatbed digital printers use inks made of acrylic monomers that are then exposed to strong UV-light to cure, or polymerize them. This process allows for printing on a wide variety of surfaces such as wood or metal, carpet, tile, and even glass. The adjustable printing bed makes it possible to print on surfaces ranging in thickness from a sheet of paper often up to as much as several inches. Typically used for commercial applications (retail and event signage), flatbed printing is often a substitute for screen-printing. Since no printing plates or silk-screens must be produced, digital printing technology allows shorter runs of signs to be produced economically.



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