Reversing Transporting Device Sheet Orientation Control
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Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently reversing and transporting sheets with precise control over orientation, leading to potential skewing and interference issues during the image formation process.
Innovation Solution
A reversing transporting device with a series of transport paths and rotating members, including transporting-in, reversing, and transporting-out sections, where pairs of rotating members with driving and driven rollers contact and separate to manage sheet orientation and movement, ensuring accurate reversal and transport of sheets between image forming units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple transporting sections with rotating members are used to reverse and transport sheets, then sheet orientation control and reversal precision are improved, but device complexity increases
Solution Approach 1:
The transporting device is divided into multiple independent transporting sections (first transporting section, second transporting section, third transporting section, fourth transporting section, and fifth transporting section), each with its own driving and driven rotating members. This segmentation allows each section to independently control sheet orientation and movement, achieving precise reversal and transport while managing complexity through modular design.
Solution Approach 2:
The rotating members in each transporting section are designed to be dynamically controllable, with driving rotating members rotating in response to outside driving force and driven rotating members rotating by receiving driving force from the driving members. This dynamic control enables precise adjustment of sheet orientation and transport timing, resolving the contradiction between precision and complexity.
2Reliability
If driving rotating members retreat from transport paths when separated, then sheet skewing and interference are minimized, but transporting section complexity increases
Solution Approach 1:
The driving rotating members are designed to retreat from the transport paths in advance when separated from driven rotating members, before the actual transport operation begins. This preliminary action prevents potential skewing and interference issues, ensuring reliable sheet transport while the retreat mechanism is integrated into the overall rotating members design.
3Measurement precision
If pairs of rotating members contact and separate to manage sheet movement, then sheet orientation precision is improved, but mechanism complexity increases
Solution Approach 1:
The driven rotating members act as intermediaries between the driving rotating members and the sheets. The driving members rotate in response to outside driving force, and the driven members rotate by receiving driving force from the driving members through contact. This intermediary mechanism enables precise control of sheet position and orientation while distributing the mechanical complexity across multiple components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures precise reversal and transport of sheets, maintaining image formation quality by minimizing skewing and interference, allowing for efficient image formation on both sides of the sheet.
Implementation Method 1
the driven rotating member rotating by receiving the driving force from the driving rotating member when the driven rotating member is contacted by the driving rotating member
Data Source
AI summary
A reversing transporting device includes a transport-in path, a first transporting section provided at the transport-in path, a second transporting section provided at the transport-in path, a reversing path connected to the transport-in path, a third transporting section provided at the reversing path, a transport-out path connected to the reversing path, a fourth transporting section provided at the transport-out path, and a fifth transporting section provided at the transport-out path.