Encoding liquid ink with a device specific biomarker

    公开(公告)号:US10047235B2

    公开(公告)日:2018-08-14

    申请号:US14962548

    申请日:2015-12-08

    Abstract: What is disclosed is a method for encoding liquid ink with a biomarker which can be traced back to a specific inkjet printer. In one embodiment, an aqueous solution containing a biomarker is combined with a volume of liquid ink. The biomarker comprises a nucleic acid. An ordering of nucleobases forming that nucleic acid has a code sequence. In one embodiment hereof, the nucleic acid is constructed using a code sequence which contains, at least in part, the device specific serial number of the inkjet printer. The encoded liquid ink is added to an inkjet printer and the code sequence encoded in that ink is associated with that particular inkjet printer. The inkjet printer is then used to deposit the encoded ink onto a media substrate. In other embodiments, a fluorescent marker is also added with the volume of liquid ink such that the ink fluoresces under an ultraviolet light.

    Variably changing nip feeding speeds to maintain optimal sheet buckle
    3.
    发明授权
    Variably changing nip feeding speeds to maintain optimal sheet buckle 有权
    可变的压区进给速度,以保持最佳的片扣

    公开(公告)号:US09108811B1

    公开(公告)日:2015-08-18

    申请号:US14510414

    申请日:2014-10-09

    Abstract: Various methods and devices maintain a registration nip and a transfer nip at the same sheet feeding speed when the leading edge of a sheet is between them. These methods and devices create a buckle in the sheet by increasing the sheet feeding speed of the registration nip while maintaining the transfer nip at the original sheet feeding speed during a first portion of when the sheet is simultaneously within the registration nip and the transfer nip. Such methods and devices then decrease the sheet feeding speed of the registration nip after creating the amount of buckle in the sheet and maintain the registration nip and the transfer nip at the same sheet feeding speed to maintain that specific amount of buckle in the sheet during the remaining portion of when the sheet is simultaneously within the registration nip and the transfer nip.

    Abstract translation: 当片材的前缘在它们之间时,各种方法和装置以相同的片材进给速度保持对准辊隙和转印辊隙。 这些方法和装置在片材同时位于配准辊隙和转印辊隙内的第一部分期间,通过增加对准辊隙的片材进给速度,同时保持转印辊隙处于原始片材进给速度,从而在片材中产生带扣。 这样的方法和装置然后在片材中产生带扣量之后降低对位辊隙的片材进给速度,并以相同的片材进给速度保持对准辊隙和转印辊隙,以在片材期间保持特定量的带扣 当片材同时位于配准辊隙和转印辊隙内时的剩余部分。

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