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Input devices for automation and large
volumes• Optical Mark Reader
• Optical Character Reader
• Magnetic Ink Reader
Impact Printers
Daisywheel
Works like a typewriter - bangs a metal imprint against an ink-soaked ribbon
Slow, but simple
Impact Printers
Dot Matrix
Dots instead of letters - can now manage crude drawings
Reliable, not easily affected by dust or debris
QuickTime™ and aH.264 decompressor
are needed to see this picture.
Small nozzles spray liquid ink - high quality images but ink can smudge
Cheap to buy but expensive to replace ink
Inkjet Printers
Uses toner instead of ink – fast printing and does not smudge
Expensive to buy but cheap to replace toner
Laser Printers
Scenario
Paulo needs a printer in his pizza restaurant to print customers’ orders. The printouts will be used by the chefs so they know what to prepare.
Andrea needs a printer for her new business making cakes. She wants to be able to print a couple of small brochures with pictures of the best ones - the pictures need to be high quality but she won’t be printing hundreds of copies.
Scenario
Colin has been asked to buy a printer for ‘Oxygym’. They send a monthly newsletter out to customers as well as leaflets and flyers that are posted up in the reception area.
Cheryl is an architect and needs to buy a printer to print out her technical drawings. These printouts will be pretty big, highly detailed and need to be very accurate (scale).