Automatic paper separating device for double-sided printer

By combining reverse and forward paper feeding, and using a lifting device and bidirectional paper feeding roller group to separate the paper, the problem of paper sticking caused by static electricity and adhesion is solved, and smooth feeding and accurate printing of double-sided printing are achieved.

CN116835352BActive Publication Date: 2026-06-26ANHUI PROVINCIAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI PROVINCIAL HOSPITAL
Filing Date
2023-01-06
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, static electricity or paper sticking can cause paper to stick together during double-sided printing, affecting the printing sequence and results.

Method used

It adopts a combination of reverse and forward paper feeding, applying vertical force to the paper through a lifting device and a bidirectional paper feeding roller group, and using friction and bending to separate the paper. Combined with the paper feeding detection component, it ensures the feeding of single sheets of paper.

Benefits of technology

This effectively avoids paper sticking and overlapping during transport, ensuring the accuracy and efficiency of the printing sequence.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116835352B_ABST
    Figure CN116835352B_ABST
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Abstract

The application discloses a paper automatic separating device of a double-sided printer, which comprises a tool for placing printing paper, a jacking device for jacking the two ends of the printing paper placed in the tool to a set height, a bidirectional paper rubbing roller group arranged above the tool and used for sequentially performing once paper rubbing in the opposite direction of the machine paper conveying direction and once paper rubbing in the same direction of the machine paper conveying direction on the uppermost paper placed in the tool, a rear guide surface arranged on one side of the tool and located on the opposite direction of the machine paper conveying direction, and a front guide surface arranged on the other side of the tool, wherein the jacking device jacks the printing paper close to the rear guide surface side during the once paper rubbing in the opposite direction of the machine paper conveying direction performed by the bidirectional paper rubbing roller group, and the jacking device jacks the printing paper close to the front guide surface side during the once paper rubbing in the same direction of the machine paper conveying direction performed by the bidirectional paper rubbing roller group.
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