Image forming apparatus

By incorporating a paper feeding unit, an image forming unit, and a control unit into the image forming apparatus, and utilizing opening/closing detection and paper surface detection, the problem of paper feed tray malfunction and poor paper storage can be distinguished, and appropriate error handling can be performed. This solves the problem of paper not being lifted properly, and improves the reliability of the equipment and the user experience.

CN116500874BActive Publication Date: 2026-07-10SHARP KK
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHARP KK
Filing Date
2023-01-20
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In image forming apparatuses, errors occur when paper is not properly stored in the paper tray or when the lifting mechanism malfunctions, causing the paper to fail to be raised to the designated position. Furthermore, existing technologies struggle to differentiate between different types of malfunctions and provide appropriate error handling.

Method used

By providing a paper feeding unit, an image forming unit, and a control unit in the image forming apparatus, and using an opening/closing detection unit and a paper surface detection unit, the cause of the abnormality in the paper feeding tray is determined to be a malfunction or poor paper storage, and corresponding first or second abnormality handling is performed.

Benefits of technology

It enables appropriate error handling based on the specific circumstances of the paper supply tray error, distinguishing between malfunctions and poor paper storage, thereby improving user experience and equipment reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116500874B_ABST
    Figure CN116500874B_ABST
Patent Text Reader

Abstract

The image forming apparatus is characterized by including: a paper feeding section that feeds paper for image formation; an image forming section that forms an image on the paper based on image data when a print instruction of the image data is accepted from a user; and a control section that controls the paper feeding section and the image forming section, the paper feeding section including a closable paper feeding tray that houses the paper and an opening / closing detection section that detects an opening / closing state of the paper feeding tray, the control section determining that the paper feeding tray in the middle of paper feeding has an abnormality when image formation is performed by the image forming section, regarding the abnormality as an abnormality caused by a failure of the paper feeding tray, and executing a first abnormality process that is set in advance, and regarding the abnormality as an abnormality caused by poor housing of the paper housed in the paper feeding tray when the opening / closing detection section detects that the paper feeding tray changes from an open state to a closed state, and executing a second abnormality process that is set in advance.
Need to check novelty before this filing date? Find Prior Art