Sheet Feeder Switching Control for Image Forming Systems
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Solution Overview
Problem
Conventional image forming systems face instability in preparation operations until image data transmission begins, leading to difficulties in improving throughput during image formation.
Innovation Solution
An image forming system with a communication interface, standard and auxiliary sheet feeders, a motor, and a transmission assembly that selectively switches drive force between the feeders, controlled by a controller to determine tray presence and initiate image formation based on received data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system waits for correct operation determination before executing preparation operations, then operational stability is improved, but image formation throughput deteriorates
Solution Approach 1:
The system executes preparation operations (cleaning the recording head, releasing capping) in advance based on receipt of preceding data, before image data transmission begins. This preliminary action ensures operational stability is maintained while avoiding delays in the image formation process, as the preparation is completed beforehand rather than waiting for correct operation determination during active printing.
2Device complexity
If the system uses only a standard sheet feeder, then device complexity is reduced, but adaptability to different tray configurations deteriorates
Solution Approach 1:
The system incorporates both a standard sheet feeder and an auxiliary sheet feeder, allowing it to adapt to different tray configurations. The controller determines whether sheets are present in the standard tray or auxiliary tray and automatically selects the appropriate feeder, providing universal functionality across various loading scenarios without increasing operational complexity for the user.
Solution Approach 2:
The system dynamically switches between the standard sheet feeder and auxiliary sheet feeder based on real-time detection of sheet presence in different trays. This dynamic adaptation allows the system to respond flexibly to different configurations while maintaining a relatively simple overall structure, as the switching logic is automated rather than requiring complex mechanical reconfiguration.
3Adaptability or versatility
If the system switches sheet feeders during operation, then adaptability to tray configurations is improved, but device complexity increases
Solution Approach 1:
The transmission assembly acts as an intermediary mechanism that facilitates switching between the standard sheet feeder and auxiliary sheet feeder. By introducing this dedicated switching component, the system achieves adaptability to different tray configurations while isolating the complexity within a specific subsystem rather than requiring complex integration across the entire device architecture.
Data Source
AI summary
An image forming system has a transmission assembly, standard and auxiliary sheet feeders, standard and auxiliary trays, an image forming device and a controller. The transmission assembly is for switching transmission of a drive force of a motor selectively to the one of the standard and auxiliary sheet feeders. The controller determines whether sheet is absent in the standard tray. The controller, based on determining the sheet is absent in the standard tray and receipt of preceding data, control the transmission assembly to initiate to switch the transmission of the drive force to the auxiliary sheet feeder. Also the controller, based on receipt of control data received after preceding data, control the image forming device to form an image based on the control data.