Switchback device and image forming apparatus including it

A technology of reset device and switching mechanism, which is applied in the direction of developing and printing devices, printing equipment, processing equipment, etc., and can solve the problems of difficult miniaturization of devices

Inactive Publication Date: 2005-03-16
NK WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is difficult

Method used

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  • Switchback device and image forming apparatus including it
  • Switchback device and image forming apparatus including it
  • Switchback device and image forming apparatus including it

Examples

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Embodiment Construction

[0033] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0034] figure 2 , is a side view showing the medium transport path 12 in the inkjet printer 2 equipped with the switching and resetting device 1 of the present invention. exist figure 2 Among them, the switching and resetting device 1 is installed in the middle of the conveyance path 12 of the printed medium 3, and at the same time transfers the medium 3 from the upstream conveyance path 4 (the conveyance path on the upstream side compared to the upstream roller pair 9 described later). The traveling direction is reversed, and it is conveyed to the downstream side conveyance path 5 (the conveyance path downstream of the downstream side roller pair 10 mentioned later). In the transport path 12 of the inkjet printer 2, a roll paper 6 that winds the printing surface of the medium 3 to be printed on the outside, a printing head 7 that prints on the medium 3, a...

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Abstract

To suppress generation of scratches and dirt on a printed face and to intend to reduce in size, a switchback device (1) provided in a conveyance path (12) for a printed medium (3), for reversing the direction of movement of the medium (3) sent from an upstream part (4) of the conveyance path (12) and then delivering the medium (3) to a downstream part (5) of the conveyance path (12), comprises a pair of operation rollers (15) including a drive roller (13) for conveying the medium (3) and a slave roller (14) cooperating with the drive roller (13) to pinch the medium (3); and a changeover mechanism (16) for changing a direction of the pair of operation rollers (15) including the drive roller (13) and the slave roller (14). The medium (3) sent from the upstream part (4) of the conveyance path (12) which is pinched by the pair of operation rollers (15) is, in this state, changed in direction as a result of a change of the direction of the pair of operation rollers (15) by the changeover mechanism (16), and then is delivered to the downstream part (5) of the conveyance path (12) by reversing rotation of the drive roller (13). Thus, generation of scratches and dirt on the printed face (3a) of the medium (3) can be suppressed and the space for taking the medium (3) in upon switchback can be reduced in size.

Description

technical field [0001] The present invention relates to a switching and reset device that is installed in the middle of a conveying path of a printing medium, and that reverses the traveling direction of a medium from an upstream conveying path and conveys it to a downstream conveying path. Background technique [0002] In an inkjet printer, a photo developing device, etc., it is preferable that the printed side face up when the user checks the medium after printing, such as paper, out of the device. Therefore, there is a device in which a switching reset device is arranged on the conveyance path of the medium. [0003] In Patent Document 1, such as Figure 7 ~ Figure 8 As shown, in the photo developing and developing device, the switch reset device 102 is provided between the upstream conveying passage 100 and the downstream conveying passage 101 . The switching and resetting device 102 has an action roller pair 105 composed of a driving roller 103 and a driven roller 104,...

Claims

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Application Information

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IPC IPC(8): G03B27/00G03B27/46G03D13/00
Inventor 菅田佳寿
Owner NK WORKS CO LTD
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