THERMOREMANENT MAGNETIC IMAGING METHOD

    公开(公告)号:CA1216064A

    公开(公告)日:1986-12-30

    申请号:CA456625

    申请日:1984-06-14

    Applicant: XEROX CORP

    Abstract: An energy efficient thermoremanent magnetic imaging method and apparatus comprising a moving magnetic recording medium which is passed through a nip formed by a thermal printhead and a pressure roller, so that the magnetizable surface of the recording medium is in pressure contact with the heating elements of the thermal printhead. The recording medium is pre-magnetized prior to entry in the nip and passed through a magnetic field of lower strength and opposite polarity at the nip. Small areas or pixels of the pre-magnetized recording medium are heated by the thermal printhead in image configuration and allowed to cool in the presence of the magnetic field at the nip. The magnetic poles of the imagewise pixels are switched, forming fringe fields between the pixels and pre-magnetized background areas. The pixels with the switched magnetic poles are spaced from each other to prevent the fringe fields from forming around the periphery of clusters of pixels and collapsing inbetween some or all of the pixels making up the cluster.

    INK-JET PRINT HEAD AND ITS MANUFACTURE

    公开(公告)号:JP2001058413A

    公开(公告)日:2001-03-06

    申请号:JP2000210450

    申请日:2000-07-11

    Applicant: XEROX CORP

    Abstract: PROBLEM TO BE SOLVED: To provide an ink-jet print head equipped with an ink-repellent coat which is abrasion resistant and hard to wear under the action of a wiper blade normally used at a maintenance part of an ink-jet printer. SOLUTION: An ink-jet print head 10 includes a plurality of channels. The channels can be replenished with ink from an ink source. Terminal ends of the channels become nozzles 27 at on surface of the print head 10. The surface has a covalent bonded organosiloxane polymer coat. The organosiloxane polymer coat is substantially uniform and has no further layer thereon.

Patent Agency Ranking