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Dual-side recorder

A technology for double-sided recording and recording media, which can be used in printing devices, typewriters, printing and other directions, and can solve problems such as paper jams, unavoidable blank spaces that cannot be recorded, and inability to arrange the discharge port row of the recording head near the bite position.

Inactive Publication Date: 2004-10-27
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the invention shown in USP6332068, the position (nip position) that needs to be used for clamping paper by the paper feed roller, so, can't arrange the ejection orifice line of recording head to the vicinity of the biting position, can't avoid the position at the rear end of the surface. The remainder leaves a blank space where the recording action cannot be performed
In addition, in the invention disclosed in Japanese Patent Application Laid-Open No. 2002-067407, it is possible to make the space at the rear end of the surface zero, but when the recording operation is performed by inkjet recording, fluctuations occur due to the influence of swelling of the recording paper, etc. deformed, so paper jams may occur when it is clamped to the feed rollers again

Method used

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Embodiment Construction

[0029] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. The same reference numerals denote the same or corresponding parts in the drawings. figure 1 A schematic perspective view showing the overall configuration of an embodiment of a double-sided recording device to which the present invention is applied, figure 2 for from figure 1 A schematic side sectional view showing the overall configuration of a double-sided recording device according to an embodiment, viewed in the direction of arrow A in FIG. figure 1 and figure 2 The recording device shown is a case of an inkjet recording device that discharges ink to record on a recording medium. In addition, in the following description, the recording paper (recording paper) is a representative example of the recording medium, so although it is sometimes referred to as recording paper or paper when the recording medium should be used in a broad sense, This d...

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PUM

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Abstract

A printed paper is delivered to the part where the rear end portion of the printed paper falls down from a pair of paper feeding rollers(21,22) when printing is performed on the first side of the printed paper. The paper feeding rollers are spaced apart from a pinch roller. The printed paper is delivered in the direction opposite to the first side printing direction by a pair of paper distributing rollers. The paper feeding rollers are contacted to the pinch roller repeatedly. The printed paper is kept being delivered reversely to be delivered to a paper reverse turning unit(2).

Description

technical field [0001] The present invention relates to a double-sided recording device capable of performing double-sided recording on a recording medium whose front and back are reversed by a paper reversing unit. In a double-sided recording device, the paper conveyance mechanism includes a paper feed roller pair composed of a paper feed roller and a pinch roller, and a paper discharge roller pair disposed downstream of the paper feed roller pair in a conveyance direction. Background technique [0002] In the past, several methods have been practiced or proposed for devices that perform automatic double-sided recording by a nozzle recording device. Wherein, after the recording on the surface of the paper to be recorded is completed, the conveying direction is reversed relative to the previous one, and the paper to be recorded is sent to the front and back reversing device. The paper is conveyed, and the recording is performed on the back side of the recording paper by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J3/60
CPCB41J3/60B41J13/025B41J13/0045
Inventor 大桥哲洋吉川淳一谷黑昌宏岩仓广弥
Owner CANON KK