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1. Inkjet printing, like laser printing, (to be) a non-impact method. 2. Ink (to be emitted) from nozzles as they pass over a variety of possible media, and the operation of an inkjet printer (to be) easy to visualise: liquid ink in various colours being squirted at the paper to build up an image. 3. A print head (to scan) the page in horizontal strips, using a motor assembly to move it from left to right and back, as another motor assembly (to roll) the paper in vertical steps. 4. A strip of the image (to be printed0, then the paper (to move) on, ready for the next strip. To speed things up, the print head doesn't print just a single row of pixels in each pass, but a vertical row of pixels at a time.
X. Ask questions to which the following sentences would be the answers.
1. The print head takes about half a second to print a strip across a page. 2. Since A4 paper is about 8.5in wide and inkjets operate at a minimum of 300dpi, this means there are at least 2,475 dots across the page. 3. The print head has about 1/5000th of a second to respond as to whether or not a dot needs printing. 4. Fabrication advances will allow bigger print-heads with more nozzles firing at faster frequencies, delivering native resolutions of up to 1200dpi and print speeds approaching those of current colour laser printers.
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VII. Put the verbs in brackets in a proper tense form. | | | Принтер |