Printing device and paper width identification method

Abstract

The invention provides a paper width identification method, which comprises the following steps: judging whether paper is transmitted into a paper box; if so, adjusting a width adjusting device and linking to drive a width guide part to move so as to cause the width guide part to contact with both sides of the paper; and utilizing a sensor to sense a position identification structure on the width adjusting device, which corresponds to the sensor, so as to determine the paper width according the position identification structure. The invention further provides a printing device. According to the printing device and the method, the sensor is used for detecting positions of a width adjusting component and a linkage mechanism thereof to determine the paper width, and judging whether the paper width conforms to the printing setting according to the paper width so as to prevent waste of ink and paper.

Description

technical field [0001] The invention relates to a printing device and a paper width recognition method, in particular to a printing device and a paper width recognition method using a sensor to judge the paper width. Background technique [0002] Existing printing devices usually print images on printing media (eg, paper) according to input image signals. A printing device is generally provided with a paper supply unit, including a paper box for loading paper therein, so as to provide printing media to the printing device. The paper feeding unit further includes a length adjusting member and a width adjusting member installed in the paper cassette to be adjusted according to the length and width of the paper loaded in the paper cassette, respectively. [0003] However, even if the user can adjust the length adjustment member and the width adjustment member according to the size of the paper, so that the paper supply unit can smoothly supply printing paper to the printing de...

AI Technical Summary

Problems solved by technology

[0003] However, even if the user can adjust the length adjustment member and the width adjustment member according to the size of the paper, so that the paper supply unit can smoothly provide printing paper to the printing device, the paper supply unit cannot automatically identify the size of the printing medium.

In this way, when printing a pattern, if the size of the printing medium placed does not match the size of the print setting, it will often result in printing a small pattern on a large size paper or printing a large pattern on a small size paper, resulting in waste of paper and ink

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