OUTPUT DEVICES: PRINTERS PROFESSIONAL ENGLISH IN USE FOR COMPUTER

 

PROFESSIONAL ENGLISH IN USE FOR COMPUTER 6. OUTPUT DEVICES: PRINTERS

 

A Technical details A printer is a device that prints your texts or graphics  on paper. B Types of printers A dot-matrix printer uses a group, or matrix, of pins to create precise dots. A printer head containing tiny pins strikes an inked ribbon to make letters and graphics. This impact printing technology always shops, for example to print multi-part forms such as receipts and invoices, so it’s useful when self-copying paper is needed. It has two important disadvantages: noise and a relatively low resolution (from 72 to 180 dpi). EXERCISES 6.1 Complete these sentences with words from A opposite. 1 The differences in _______________ are noticeable: the more dots per inch, the clearer the image. 2 A print resolution of between 600 _______________ and 2,400 _______________ ensured that even text as small as 2 pt was legible. 3 Passengers with an electronic ticket will need a _______________ of ticket confirmation or a boarding pass to be admitted to secured gate areas. 6.2 Choose the most appropriate type of printer for these situations from the descriptions in B opposite. 1 a home user who wants to print text documents and family photographs 2 business people who need to print in large quantities at high quality in an office 6.3 Find terms in B opposite which correspond to these definitions.   1 a container  that holds the ink in an ink-jet printer 2 powdered ink used in laser printer 3 small needles that press on the inked ribbon to make the character on paper

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