Double-Side Printing Productivity via Dynamic Operation Switching
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Solution Overview
Problem
The miniaturization of image formation apparatuses leads to a shortened double-side conveyance path, causing productivity degradation in double-side printing, as existing methods do not adequately consider sheet length, conveyance path length, and productivity when switching between inter-leaf and non-inter-leaf operations.
Innovation Solution
An image formation method and apparatus that switch between inter-leaf and non-inter-leaf operations based on sheet length information, using sensors to detect sheet length and control units to determine the appropriate operation, ensuring optimal productivity by considering the sheet length, conveyance path length, and productivity factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the image formation apparatus is miniaturized to reduce size, then the device complexity and footprint are reduced, but the double-side conveyance path length is shortened causing productivity degradation
Solution Approach 1:
The patent implements dynamic switching between inter-leaf operation and non-inter-leaf operation based on real-time detection of sheet length, conveyance path length, and productivity parameters. The control unit dynamically adjusts the operation mode to optimize productivity for the current apparatus configuration, resolving the contradiction between miniaturization and productivity maintenance.
Solution Approach 2:
The patent changes operational parameters (switching between inter-leaf and non-inter-leaf modes) based on detected physical parameters (sheet length, conveyance path length). This allows the system to adapt to the shortened conveyance path in miniaturized apparatus while maintaining optimal productivity through parameter adjustment.
2Productivity
If inter-leaf operation is used to improve double-side printing productivity, then productivity increases, but the operation becomes complex requiring coordination of multiple sheets in the conveyance path
Solution Approach 1:
The patent employs feedback mechanisms where sensors detect sheet length and conveyance path length, and the control unit uses this information to automatically determine whether to switch between inter-leaf and non-inter-leaf operations. This feedback-based automatic switching simplifies the complexity by removing the need for manual intervention while maintaining optimal productivity.
Solution Approach 2:
The system performs self-assessment of its operational state by detecting sheet and conveyance path lengths, then automatically selects the appropriate operation mode without external control. This self-service capability reduces operational complexity while maintaining high productivity.
3Ease of operation
If non-inter-leaf operation is used to simplify control, then ease of operation improves, but productivity degradation occurs especially with shortened conveyance paths
Solution Approach 1:
The system dynamically selects between simple non-inter-leaf operation and high-productivity inter-leaf operation based on detected parameters. When the conveyance path is sufficiently long, the simpler non-inter-leaf mode is used; when the path is shortened due to miniaturization, the system automatically switches to inter-leaf mode to maintain productivity, thus resolving the contradiction between ease of operation and productivity.
4Volume of moving object
If the conveyance path is shortened through miniaturization, then apparatus size is reduced, but the time for sheet conveyance and processing increases
Solution Approach 1:
The inter-leaf operation enables continuous useful action by keeping multiple sheets in the conveyance path simultaneously. While one sheet is being processed, other sheets are already in transit or being prepared, eliminating idle time and compensating for the increased conveyance time caused by the shortened path in miniaturized apparatus.
Solution Approach 2:
The system performs preliminary actions by detecting sheet length and conveyance path length in advance, then pre-determining the optimal operation mode before actual printing begins. This preliminary assessment allows the system to switch to inter-leaf operation proactively, preventing time loss rather than reacting after the delay occurs.
Data Source
AI summary
An image formation apparatus configured to switch between an inter-leaf operation and a non-inter-leaf operation is provided for double-sided printing.