Overlapping Medium Transport Control in Recording Apparatus
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Solution Overview
Problem
Existing recording apparatuses face challenges in achieving both overlapping transportation and switchback transportation efficiently, particularly when the overlapping dimension increases, as they fail to effectively guide the preceding medium to the switchback route without compromising recording quality or throughput.
Innovation Solution
The recording apparatus incorporates a control section that manages a first feed roller pair, a second feed roller pair, and a third feed roller pair to control overlapping transportation, determining the overlapping dimension based on the route dimension from the third feed roller pair to the introducing port, allowing for both overlapping and switchback transportation while ensuring the rear end of the preceding medium is appropriately fed to the lower transport route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the overlapping dimension is increased to improve throughput, then the productivity is improved, but the preceding medium becomes difficult to be guided to the switchback route
Solution Approach 1:
The control section determines the overlapping dimension Lk in advance based on the route dimension Ld before the overlapping transportation is executed. This preliminary determination ensures that the overlapping dimension is set to a value that allows proper guidance to the switchback route while still achieving throughput improvement through overlapping transportation.
Solution Approach 2:
The system dynamically adjusts the overlapping dimension Lk based on the specific route dimension Ld of the switchback route. By making the overlapping dimension variable and adaptive to the route configuration, the system can optimize throughput for different medium sizes while ensuring proper guidance to the switchback route when needed.
2Productivity
If the overlapping dimension is increased, then the throughput is improved, but the reliability of proper medium guidance is compromised
Solution Approach 1:
The control section uses the route dimension Ld as feedback information to determine the appropriate overlapping dimension Lk. This feedback mechanism ensures that the overlapping dimension is always set within limits that maintain reliable guidance to the switchback route, while maximizing throughput within those constraints.
Solution Approach 2:
The system changes the parameter of overlapping dimension Lk based on the route dimension Ld. By adjusting this parameter dynamically, the system maintains the reliability of medium guidance while optimizing throughput, resolving the contradiction between these two requirements.
3Productivity
If overlapping transportation is implemented without considering switchback route dimensions, then the throughput is improved, but the manufacturing precision of medium positioning is degraded
Solution Approach 1:
The control section preliminarily determines the overlapping dimension Lk based on the route dimension Ld before the overlapping transportation begins. This preliminary calculation ensures that the overlapping dimension is set to a value that maintains proper medium positioning precision while still enabling throughput improvement through overlapping transportation.
Solution Approach 2:
The system adjusts the overlapping dimension parameter Lk based on the route dimension parameter Ld. This parameter change ensures that medium positioning precision is maintained by setting the overlapping dimension within appropriate limits, while still achieving throughput improvement through overlapping transportation.
Data Source
AI summary
A control section of a recording apparatus is configured to execute control of overlapping transportation in which a preceding medium and a following medium are transported in a state in which a rear end region of the preceding medium and a leading end region of the following medium overlap at least in a partial section in an upper transport route, and determines an overlapping dimension Lk that is a dimension, by which the rear end region of the preceding medium and the leading end region of the following medium overlap, in accordance with a route dimension Ld from a third feed roller pair to an edge of an introducing port in a second direction, when executing the control of the overlapping transportation.