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The HP DeskJet 520 introduced resolution enhancement technology, or REt, to HP inkjet printers. It was also HP's last black-and-white-only inkjet printer. The HP DeskJet 500, 510, 520, 500C, 550C, and 560C were all replaced by the HP DeskJet 540 (3 ppm B&W, 1.5 minutes per page color). A one-pen inkjet printer, color was optional.
Photo and document all-in-one printers. Deskjet 1050A All-in-One Printer Series – J4; Deskjet 1510 All-in-One Printer; Deskjet 2510 All-in-One Printer; Deskjet 2540 All-in-One Printer; Deskjet 3520 e-All-in-One Printer; Deskjet Ink Advantage 1510 All-in-One Printer; Deskjet Ink Advantage 2540 All-in-One Printer; Deskjet Ink Advantage 3500 e ...
Pixels per inch (or pixels per centimetre) describes the detail of an image file when the print size is known. For example, a 100×100 pixel image printed in a 2 inch square has a resolution of 50 pixels per inch. Used this way, the measurement is meaningful when printing an image.
As of 2009, a high-end flatbed scanner can scan up to 5400 ppi and drum scanners have an optical resolution of between 3000 and 24000 ppi. Effective resolution refers to the true resolution of a scanner, and is determined by using a resolution test chart. The effective resolution of most all consumer flatbed scanners is considerably lower than ...
A 10 × 10-pixel computer display image usually requires many more than 10 × 10 printer dots to reproduce it accurately, due to the limited colours of ink available from the printer; here, a 60 × 60 grid is used, providing 36 times the original density, compensating for the printer's fewer colours.
A video showing an inkjet printer while printing a page. In computing, a printer is a peripheral machine which makes a durable representation of graphics or text, usually on paper. [1] While most output is human-readable, bar code printers are an example of an expanded use for printers. [2]
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In addition to the widely used small inkjet printers for home and office, there are professional inkjet printers, some for "page-width" format printing and many for wide format printing. Page-width format means that the print width ranges from about 8.5–37 in (22–94 cm). "Wide format" means print width ranging from 24" up to 15' (about 60 ...
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