Depinching mechanism for paper jam removal in printer
a technology of paper jam removal and pinching mechanism, which is applied in the field of printing, can solve the problems of paper jam, paper skew or paper jam, paper jam,
Inactive Publication Date: 2012-10-04
CAL COMP ELECTRONICS +1
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- Application Information
AI Technical Summary
Benefits of technology
Enables automatic paper jam removal in printers, reducing user effort and minimizing hand exposure to contaminants, while maintaining normal printing functionality.
Problems solved by technology
However, during a paper picking process of the printer, a phenomenon of paper skew or paper jam is occurred due to a mechanical structure of the printer and differences of paper properties.
It is rather inconvenient and time consuming that paper jam occurs during printing or receiving a fax.
Usually paper jams when the transferring paper is clamped by the fixing roller and the pressure roller.
Hands may also get dirty to remove the jammed paper.
Method used
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[0023]Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
[0024]The figures are not drawn to scale and they are provided merely to illustrate the present invention. Several aspects of the invention are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships and methods are set forth to provide a full understanding of the invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. For example, the present invention can be embodied as a method or a system.
[0025]The present invention provides a depinching mechanism with a simple mechanism and low manufacturing cost in order to solve the ...
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A depinching mechanism including a frame, a star wheel assembly, a transmitting device and a sensor is provided in present invention. Through the transmitting device rotating reversely, the star wheel assembly is lifted to the second position when paper jam occurs, thus depinched the media so that user can clear the paper jam. After that the star wheel assembly is lowered to the first position again. The star wheel assembly remains in the first position in normal printing process. Using a one-way clutch and a cam with an outer predetermined profile, the transmitting device rotates forwardly without transmitting any torque during normal printing process, and rotates inversely with transmitting a torque to lift the star wheel assembly up and lower the star wheel assembly down when paper jam occurs. Thus, the depinching mechanism can be used in printers to auto fix the paper jamming problems.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Singapore application serial no. 201102300-9, filed on Mar. 31, 2011. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention generally relates to printers and more particularly to depinching mechanism for paper jam removal in printers.[0004]2. Description of Related Art[0005]Along with the widespread of information products, various information products are developed, and the information products have a general trend of diversity. However, regarding image display methods of a computer, displays and printers are mainly used as image output devices. Wherein, the printers can be approximately categorized into three types of point matrix printers, inkjet printers and laser printers. Taking the laser printer as an example, it has adv...
Claims
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IPC IPC(8): B65H7/12
CPCB41J11/006
Inventor CHNG, CHOW-JINTHENG, FOO-YINTOH, CHER-LEK
Owner CAL COMP ELECTRONICS