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PRINTERS ANDSCANNERS

BY DARSHAN BHAVSARARYA SHAHHARSH LODHAALAY GORIMRAN PATELNIKET BHANSALI


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What Is A Printer ???

A printer is an output devicethat produces text and graphicson paper. In computing,a printer is

a peripheral which produces atext and/or graphics ofdocuments storedin electronic form, usually onphysical print media such as

paper or transparencies. Manyprinters are primarily used aslocal peripherals, and areattached by a printer cable or,in most newer printers,a USB cable to a computer


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Laser

printer

All-In-One Printer WithScanner

Evolution Of Printers


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Types of Printers


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Types of PrintersPrinters can be divided into two main groups, impactprinter and n

on-impact printer. Impact printerproduces text and images when tiny wire pins on printhead strike the ink ribbon by physically contacting thepaper. Non-impact printer produces text and graphicson paper without actually striking the paper.Printers can also be categorized based on the printmethod or print technology. The most popular onesare inkjet printer,laser printer, dot-matrix

printer and thermal printer. Among these, only dot-matrix printer is impact printer and the others are non-impact printers.Some printers are named because they are designed forspecific functions, such as photo printers, portable

printers and all-in-one / multifunction printers. Photoprinters and portable printers usually use inkjet printmethod whereas multifunction printers may use inkjet orlaser print method.Inkjet printers and laser printers are the most popularprinter types for home and business use. Dot matrix

printer was popular in 70s and 80s but has been

DIFFERENCE BETWEEN IMPACT


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DIFFERENCE BETWEEN IMPACTPRINTER AND NON-IMPACT

PRINTER

DAISYWHEELPRINTER(IMPACTPRINTER)

LASER PRINTER

(NON-IMPACT

PRINTER)


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DAISY WHEEL PRINTER(IMPACT PRINTER)

Daisy wheel printers use animpact printing technologyinvented in 1969 by David S.Lee at Diablo Data Systems.It uses interchangeable pre-formed type elements, eachwith typically 96 glyphs, togenerate high-quality outputcomparable topremium typewriters such asthe IBM Selectric, but two tothree times faster. Daisy-wheelprinting was used inelectronic typewriters, wordprocessors and computersystems from 1972. According


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LASER PRINTER(NON-IMPACT

PRINTER) A laser printer is a common

type of computer printer thatrapidly produces high quality

text and graphics on plainpaper. As withdigitalphotocopiers and multifunction printers (MFPs), laserprinters employ

a xerographic printingprocess, but differ from analogphotocopiers in that the imageis produced by the direct

scanning of a laser beamacross the printer's


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SCANNER


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WHAT IS A

SCANNER ??? In computing, an image

scanneroften abbreviatedto just scanneris adevice that optically scans

images, printedtext, handwriting, or anobject, and converts it toa digital image. Commonexamples found in offices

are variations ofthe desktop (or flatbed)scanner where thedocument is placed on a

glass window forscannin . Hand-held


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TYPES OF SCANNERS

FLATBED SCANNERS

PHOTO SCANNERS

SHEETFED SCANNERS

PRORTABLE SCANNERS


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FLATBED SCANNER


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PHOTO SCANNER


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SHEETFED SCANNER


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PORTABLE SCANNER


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