![]() RIT therefore recommended that we omit the HP and HP-compatible inks from the fade test results. However, after RIT technicians submitted their fade and yield results–and returned the printers it had tested to us–they became concerned that some of the HP-brand ink might have remained in the HP 5180 printer when it was printing test images using third-party ink, because the printer has unusual, long ink tubes that connect the cartridges with the printer nozzles. Both the HP and the third-party inks printed color glossies quite well but were just so-so at producing color images on plain paper. For example, in evaluations of output from the HP Photosmart C5180 printer, inks from third-party challengers Cartridge World and LD Products earned scores identical to those awarded to HP’s own ink, including an overall rating of Good, on almost all of our tests. In most matchups, brand-name inks outperformed third-party alternatives, but there were a few instances in which third-party inks fared just as well as the brand-name inks did. Judges then rated the pages for qualities such as color accuracy and vibrancy, sharpness of text and of line art, and contrast levels in grayscale images. ![]() For text we created Word document samples on plain paper for line art we designed a test document with closely grouped vertical and horizontal lines. Image samples included a motion shot of cars on a racetrack, a close-up of a butterfly, a photo of a group of people with different skin tones, and a black-and-white photo of a boat. Not-so-good Quality: In the same printer, TrueStar ink created abrupt changes (called banding) between color shades.The PC World Test Center created a number of different text and image printouts, pitting manufacturers’ inks against third-party inks in five different printers. Good Quality: In a Canon printer, Canon brand ink accurately re-created the gradual hues of the test image. Not-so-good Quality: In the same printer, TrueStar ink created abrupt changes (called banding) between color shades. ![]() ![]()
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