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Printing apparatus for web

A technology for printing devices and tapes, applied in the directions of printing devices, printing, typewriters, etc., can solve the problems of reduced landing precision, low precision, and reduced printing image quality.

Active Publication Date: 2019-09-06
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned ejection timing control, due to the influence of tape expansion and contraction, etc., the accuracy of the ink landing position of the inkjet head farther from the encoder is lower.
Therefore, for example, in the case where the encoder is arranged near the upstream side of the printing section for the surface, in the printing section for the back surface farther from the encoder, the inkjet head damage caused by the reduction in the landing accuracy of ink sometimes occurs. The offset of the ink landing position between
That is, sometimes color misregistration occurs in the printed image on the back side, and the quality of the printed image deteriorates

Method used

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  • Printing apparatus for web
  • Printing apparatus for web
  • Printing apparatus for web

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Embodiment Construction

[0029] In the following detailed description, for purposes of explanation, numerous specific details are given in order to provide a thorough understanding of the disclosed embodiments. It may be evident, however, that one or more implementations may be practiced without their specific details. In other instances, well-known structures and devices are shown adapted for simplicity of illustration.

[0030] Embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that the same or similar components will be denoted by the same or similar reference numerals throughout the drawings, and descriptions of these components will be omitted or simplified. In addition, it should be noted that the drawings are schematic and thus differ from actual ones.

[0031] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. figure 1 It is a schematic configuration diagram of a...

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PUM

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Abstract

The invention provides a printing apparatus for a web. A controller controls first print timings in respective first print mechanisms of a first printer based on a first pulse signal outputted from afirst encoder and controls second print timings in respective second print mechanisms of a second printer based on a second pulse signal outputted from a second encoder.

Description

technical field [0001] The invention relates to a printing device for printing on a tape. Background technique [0002] There is known a printing device that prints an image by ejecting ink from an inkjet head onto the tape while conveying a lengthwise tape as a printing medium. [0003] In Japanese Patent Application Laid-Open No. 2003-63072, a printing device is proposed. The printing device includes: a printing unit for the surface of the tape; On the downstream side of the printing section, the printing device can print on both sides of the tape. [0004] As a printing device capable of double-sided printing as described above, there is a printing device in which a front printing unit and a rear printing unit each have a plurality of inkjet heads capable of ejecting inks of different colors. Here, a plurality of inkjet heads in each printing unit are arranged in parallel along the conveyance direction of the tape. [0005] In such a printing device, the ink ejection t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J3/54B41J3/60B41J2/21
CPCB41J2/21B41J3/543B41J3/60B41J11/008B41J15/04B41J13/0009
Inventor 若林守海老泽崇
Owner RISO KAGAKU CORP