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Detection structure, image forming device

An image forming and detection technology, applied in printing devices, typewriters, printing and other directions, can solve the problems of complex structure of paper position information detection, and achieve the effect of reducing the number of structures, realizing the cost, and simple installation and coordination structure.

Active Publication Date: 2021-07-16
联想图像(山东)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the complex detection structure of the paper position information in the paper path of the double-sided printer in the prior art, thereby providing a detection structure, an image forming device

Method used

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  • Detection structure, image forming device

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Experimental program
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Effect test

Embodiment 1

[0050] Such as figure 1As shown in -3, a detection structure provided for this embodiment includes a central axis 1, which is rotatably arranged on a paper board; a first detection arm 2 and a second detection arm 3, which are arranged at an angle On the peripheral surface of the central axis 1, and can be respectively arranged in the front printing passage and the reverse printing passage; one end of the trigger arm 4 is arranged on the peripheral surface of the central axis 1, and one end is correspondingly arranged to the sensing area of ​​the sensor 5, The printing medium triggers the first detection arm 2 and the second detection arm 3 respectively in the front printing path and the reverse printing path, and drives the trigger arm 4 to rotate to realize the triggering of the sensor 5; the reset structure 6 is arranged on the central axis 1 is used to drive the axis 1 to rotate, and drive the trigger arm 4 to return to a position not triggered by the printing medium.

[...

Embodiment 2

[0068] Such as Figure 4 As shown, an image forming device provided in this embodiment includes the detection structure described in Embodiment 1 above, and has all its technical advantages. Its working process is as follows:

[0069] The printing medium d coming out of the pickup roller 8 enters the front printing path e, and the head of the printing medium d triggers the detection structure in Embodiment 1, and finally hits it from position a to position c through position b to realize After the triggering of the sensor, the printing medium d enters the printing path f on the reverse side, and before the head of the printing medium d touches the detection structure again, its tail end breaks away from the detection structure, and then repeats the printing detection on the front side process, and finally complete the detection of the position of the front and back printing media.

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Abstract

The invention provides a detection structure and an image forming device. A detection structure includes a central shaft, which is rotatably arranged on a paper board; a first detection arm and a second detection arm, which are arranged at an angle On the peripheral surface of the central axis, and can be respectively arranged in the front printing path and the reverse printing path; one end of the trigger arm is arranged on the peripheral surface of the central axis, and the other end is set corresponding to the sensing area of ​​the sensor, and the printing medium is on the front side The first detection arm and the second detection arm are respectively triggered in the printing path and the reverse printing path, and the trigger arm is driven to rotate to realize the triggering of the sensor; the reset structure is arranged on the central shaft to drive the central shaft to rotate and drive the The trigger arm returns to its untriggered position by the print media. The overall structure of the detection structure is simple and the cost is low.

Description

technical field [0001] The invention relates to the technical field of printers, in particular to a detection structure and an image forming device. Background technique [0002] Printers are widely used as devices that realize image formation on related media. With the progress of the times, due to the saving of resources such as paper, printers capable of printing on both sides of paper have been developed. [0003] However, in the existing double-sided printers, the printing on the front side of the paper and the printing on the back side require different paper feeding channels. A sensor for detection of front printing and a sensor for detection of reverse printing arranged at the entrance of reverse printing are arranged at the paper opening. [0004] The above-mentioned detection structure requires two sets of sensors and the design of an installation structure corresponding to the sensors on the paper path, and the structure is relatively complicated and the cost is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J11/00B41J3/60
CPCB41J3/60B41J11/0095
Inventor 陈雄
Owner 联想图像(山东)科技有限公司
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