Medium supply device

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By controlling the descent of the loading platform and measuring its length during the supply of amorphous media, the problem of overlapping conveying of amorphous paper was solved, achieving the effects of preventing paper jams and accurately measuring paper length.

CN122426596APending Publication Date: 2026-07-21RISO KAGAKU CORP

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: RISO KAGAKU CORP
Filing Date: 2025-12-22
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

In the prior art, the paper feeding timing control method based on the length of the first sheet of paper to calculate the paper interval is prone to overlapping feeding in the case of irregular paper, causing paper jams and false detection of paper length.

Method used

During the supply of irregularly shaped media, the control unit lowers the loading platform and measures the length of the media to prevent overlapping transport.

Benefits of technology

It effectively prevents the overlapping transport of amorphous media, avoids paper jams, and ensures accurate measurement of paper length.

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Abstract

In a medium supply device, overlapping conveyance of irregular-shaped media is prevented. The medium supply device is provided with a loading table (external loading table (11), internal loading tables (21a, 22a, 23a)), a supply section (a doctor roller (12, 21b, 22b, 23b) and a pickup roller (13, 21c, 22c, 23c)), and a control section (71). The loading table loads media (paper (P)) and is capable of ascending and descending. The supply section supplies the uppermost media loaded on the loading table. The control section (71) causes the loading table to descend midway through the supply of the irregular-shaped media by the supply section (step ST5) and measures the media length of the irregular-shaped media (step ST12) in the case where the media is the first sheet to be supplied and the media length in the supply direction (paper feed direction D) is not standard.

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