Very high speed 450 pages-per-minute experimental magnetic printer

Eltgen, J.-J.; Magnenet, J.; Bresson, J.-P.

doi:10.1109/tmag.1987.1065723

Cited by 1 publication

(2 citation statements)

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“…As previously reported [1] [2], initial experimentations with Very High Speed Magnetographic (VHSM) printing, were first conducted on narrow (2") then wide (8.5") lab models. The printing speeds explored on these models were progressively extended from the original 60 feet-a-minute to speeds as high as 600 feet-a-minute.…”

Section: Main Research and Development Stepsmentioning

confidence: 99%

“…The magnetic drum, although similar in size and appearance to that of the Bull MP series of computer Outfeed rollers output printers, is different along two directions: higher recording bandwidth provided by material and process reoptimization [2], provision for internal cooling by water circulation. The erasing station is directly extrapolated from the MP series products but with an AC frequency pushed up to 20 kHz and the advantage of being operated in non-contact conditions.…”

Section: Magnetographic Print Enginementioning

confidence: 99%

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<title>Advances of magnetography in very-high-speed electronic printing</title>

Eltgen¹

1990

SPIE Proceedings

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This paper provides an up-to-date status of the continuing effort at Bull to further improve the speed and productivity of magnetographic printing and explore new potential applications. Besides puting into perspective the whole research and development program in Very High Speed Magnetographics (VHSM), the paper deals more specifically with the design, construction and testing of full size, full function, prototypes of a Press Integrable Magnetographic (PIM) module. Major guidelines for the project have been: (1) consistent print quality at variable speed over a full range of speeds, (2) accomodation of high web tensions as may be required by a press, (3) printing process totally slaved to the paper web motion as imposed by press environment, (4) extended range of printing media. Development steps, technical approaches chosen and measured performances are discussed.

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Section: Main Research and Development Stepsmentioning

confidence: 99%

Section: Magnetographic Print Enginementioning

confidence: 99%