Printing Apparatus Sheet Ejection Control
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Solution Overview
Problem
Conventional printing apparatuses lack user convenience during the ejection process of printed sheets, as users must operate the console panel with one hand and receive the ejected sheet with the other, risking damage to the sheet due to inadequate handling.
Innovation Solution
A printing apparatus with a control unit that holds the printed sheet for a predetermined time after receiving an ejection instruction, allowing the user to grip the sheet with both hands, thereby enhancing user convenience and reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the printing apparatus ejects the sheet immediately after printing without holding it, then the ejection process is fast and efficient, but the user cannot properly receive the sheet and it may get damaged
Solution Approach 1:
The conveyance unit holds the printed sheet in a suspended state before ejection, performing the action of retaining the sheet in advance. This preliminary holding action allows the user to prepare for receiving the sheet properly, preventing damage while maintaining efficient ejection when the hold period ends.
2Ease of operation
If the user operates the console panel with one hand and receives the ejected sheet with the other hand, then the user can complete both actions, but the sheet may be damaged due to inadequate handling
Solution Approach 1:
The conveyance unit acts as an intermediary between the printing unit and the user. It holds the sheet in a suspended state, providing a buffer that allows the user to prepare proper hand positioning before the sheet is actually ejected, thereby preventing damage while maintaining operational convenience.
3Ease of operation
If the conveyance unit holds the sheet for a predetermined time before ejection, then the user can receive the sheet safely with both hands, but the ejection process takes longer
Solution Approach 1:
The system performs a preliminary holding action for a predetermined period before actual ejection. This brief suspension time is sufficient for the user to prepare proper receiving posture, and the actual ejection occurs quickly afterward, minimizing total time loss while ensuring safe handling.
Data Source
AI summary
A printing apparatus comprises a conveyance unit configured to convey a sheet to a printing unit configured to perform printing; a control unit configured to cause the conveyance unit to hold the sheet onto which printing was performed by the printing unit; and a receiving unit configured to receive an ejection instruction for instructing to eject the sheet. The control unit, in a case where the receiving unit receives the ejection instruction, controls the conveyance unit to eject the sheet to outside of the apparatus after a predetermined time has elapsed.