Image Forming Apparatus Sheet Detection and Confirmation Display
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Solution Overview
Problem
Existing image forming apparatuses require users to manually input sheet size and type settings for non-standard sheets, leading to increased operational complexity and user burden, especially when switching between different sheet settings.
Innovation Solution
An image forming apparatus with a display unit, storage unit, and sheet detection unit that automatically displays a sheet setting confirmation screen when a sheet is detected, allowing users to easily confirm and update sheet settings without manual input for standard sheets, reducing operational complexity and user burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a setting screen is displayed and manual input is required for sheet size and type, then sheet setting accuracy is improved, but operational complexity and user burden increase
Solution Approach 1:
The system performs preliminary detection of sheet size and type using sensors before the user needs to input settings. The detection unit measures sheet dimensions and characteristics automatically, preparing the information in advance so that users only need to confirm rather than manually input all parameters, thus maintaining accuracy while reducing burden.
Solution Approach 2:
The apparatus performs self-detection and self-setting of sheet parameters through the detection unit and control unit. The system automatically measures sheet size and type, compares detected values with stored settings, and determines whether to display the setting screen without requiring manual intervention for standard cases, enabling the system to serve itself in the detection and initial configuration process.
2Measurement precision
If multiple sensors (sheet width sensor, sheet length sensor, sheet type detection sensor, sheet thickness detection sensor) are mounted to estimate sheet size and type, then sheet detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The detection unit is designed to perform multiple detection functions simultaneously using a integrated approach. Rather than requiring separate dedicated sensors for each parameter, the system uses a multi-functional detection unit that can detect sheet size, type, and other characteristics through coordinated operation, reducing overall system complexity while maintaining comprehensive detection capability.
Solution Approach 2:
The patent combines multiple detection functions into a unified detection unit and integration process. The sheet width sensor, sheet length sensor, sheet type detection sensor, and sheet thickness detection sensor are coordinated through a control unit that integrates their outputs, merging the detection functions into a cohesive system that reduces complexity compared to completely separate detection systems.
3Manufacturing precision
If a setting screen is always displayed for sheet configuration, then sheet setting accuracy is improved, but processing time and productivity decrease
Solution Approach 1:
The system applies partial action by displaying the setting screen only when necessary - specifically when there is a mismatch between detected sheet parameters and stored settings. For standard cases where the detected sheet matches the stored configuration, the system skips the setting screen display entirely, performing only the essential detection and comparison actions needed to maintain accuracy while maximizing processing speed.
Data Source
AI summary
An image forming apparatus includes: a display unit; a storage unit in which sheet setting information for specifying a sheet to be printed is stored in advance; a sheet accommodating unit in which the sheet to be printed is accommodated; a sheet detection unit that detects whether or not there is a sheet in the sheet accommodating unit; and a confirmation display control unit that causes the display unit to display a sheet setting confirmation screen that includes the sheet setting information stored in the storage unit, in which in a case where the sheet detection unit detects that a sheet is supplied to the sheet accommodating unit, the confirmation display control unit causes the display unit to display the sheet setting confirmation screen.