What is the printing speed of a laser printer measured in
Correct answer: C. Pages per minute (ppm)
- A. Characters per second (cps)
- B. Dots per inch (dpi)
- C. Pages per minute (ppm)
Explanation
Pages per minute (ppm) is correct. This is the most common way to measure the printing speed of a laser printer. It refers to the number of pages that the printer can print in one minute.Laser printers use a laser beam to create an image on a drum, which then transfers the toner to the paper. The printing speed of a laser printer is typically measured in pages per minute (ppm). This means that a printer with a speed of 20 ppm can print 20 pages in one minute.While dots per inch (dpi) is an important specification for print quality, it does not indicate how fast a printer can print. A higher dpi setting typically results in slower printing speeds because the printer has to print more dots per inch
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Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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