Media transport belt configured to attenuate thermal artifacts in images on substrates printed by aqueous ink printers
A technology of inkjet printers and conveyor belts, applied in printing devices, printing, etc., can solve problems such as uneven contact points, uneven heat conduction, etc.
Pending Publication Date: 2021-07-09
XEROX CORP
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Unfortunately, the needling patterns, stitched seams, or ripples that occur in the fabric of these tapes provide uneven contact points between the tape and the substrate
Non-uniform contact leads to non-uniform heat transfer between the ribbon and the media, which creates temperature differences and accompanying image defects, especially in solid ink-covered areas in the ink image
Method used
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Embodiment Construction
[0015] For a general understanding of the present embodiment, refer to the drawings. In the drawings, like reference numerals are used to designate like elements throughout.
[0016] figure 1 Depicted is a block diagram of an aqueous printer 100 configured to print images on a substrate carried by a new media carousel configured to work with a vacuum system to hold the media substrate against the belt without Image defects caused by temperature differences in the substrate are generated. Printer 100 includes a media supply 104 , a preprocessing unit 120 , a marking unit 140 , a drying unit 160 and a media receiver 200 . Media supply 104 stores a plurality of media sheets 108 for printing by printer 100 . In some embodiments, the media sheet 108 may be a clay-coated or other type of treated paper.
[0017] Preprocessing unit 120 includes at least one conveyor belt 124 that receives media sheet 108 from media supply 104 and conveys media sheet 108 through preprocessing unit...
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Abstract
The invention relates to an inkjet printer that includes a dryer configured to attenuate the effects of temperature differentials arising in substrates that are caused by holes in a media transport belt and a platen covering a vacuum plenum. The dryer includes a heater, a media transport belt cooler, and the media transport belt. The media transport belt is configured to move substrates past the heater after ink images have been formed on the substrates and the media transport belt cooler is positioned to remove heat energy from the media transport belt after the media transport belt has passed the heater and the substrates have separated from the media transport belt. The substrate cooler is configured to reduce a temperature of the media transport belt to a temperature that attenuates image defects arising from temperature differentials in the media transport belt when the media transport belt is opposite the heater.
Description
technical field [0001] The present disclosure relates generally to aqueous ink printing systems, and more particularly, to media conveyor belts that carry media through dryers in such printers. Background technique [0002] Known aqueous ink printing systems print images on uncoated and coated substrates. Whether the image is printed directly onto the substrate or transferred from an overlay disposed about an intermediate transfer member, once the image is on the substrate, moisture and other solvents in the ink must be substantially removed to secure the image to the substrate. A dryer is typically placed after the image is transferred from the overlay or after the image is printed on the substrate to remove moisture and solvents. In order to be able to operate the printer at relatively high speeds, the dryer heats the substrate and ink to temperatures typically reaching about 100°C in order to effectively remove the liquid from the surface of the substrate. [0003] Coat...
Claims
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Login to View More IPC IPC(8): B41J2/01B41J11/00B41J29/377
CPCB41J2/01B41J11/002B41J11/007B41J29/377B41J11/0015B41J11/00216B41J11/0022B41J11/0085
Inventor L·C·胡佛P·J·麦康维尔J·M·勒费夫尔S·普拉哈拉耶D·K·赫尔曼D·A·范库文伯格C-H·刘M·J·莱维S·S·巴德莎C·米尼D·S·德莱思
Owner XEROX CORP