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15 June 2008

IT_Chapter_4B

Commonly Used Printers

Impact printers

Generate output by striking the paper

Uses an inked ribbon

Non-impact printers

Use methods other than force

Tend to be quiet and fast

Dot matrix printers

Impact printer

Used to print to multi-sheet pages

Print head strikes inked ribbon

Line printers

Band printers

Speed measured in characters per second

Ink-jet printers

Non-impact printer

Inexpensive home printer

Color output common using CMYK

Cyan, magenta, yellow, black

Sprays ink onto paper

Speed measured in pages per minute

Quality expressed as dots per inch

Laser printer

Non-impact printer

Produces high quality documents

Color or black and white

Print process

Laser draws text on page

Toner sticks to text

Toner melted to page

Speed measured in pages per minute

Quality expressed as dots per inch

All-in-one peripherals

Scanner, copier, printer and fax

Popular in home offices

Prices are very reasonable

Comparing Printers

Determine what you need

Determine what you can spend

Initial cost

Cost of operating

Image quality

Speed

High-Quality Printers

Special purpose printers

Used by a print shop

Output is professional grade

Prints to a variety of surfaces

Photo printers

Produces film quality pictures

Prints very slow

Prints a variety of sizes

Thermal wax printers

Produces bold color output

Color generated by melting wax

Colors do not bleed

Operation costs are low

Output is slow

Dye sublimation printers

Produces realistic output

Very high quality

Color is produced by evaporating ink

Operation costs are high

Output is very slow

Plotters

Large high quality blueprints

Older models draw with pens

Operational costs are low

Output is very slow

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