Printer Transport Control for Manual Inspection Interval Correction
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Solution Overview
Problem
Existing printing technologies fail to maintain uniform intervals between images on a printing medium when the medium is manually transported for inspection, leading to irregularities and potential waste of resources, especially in large format printing where precise alignment is crucial for aesthetic and delivery purposes.
Innovation Solution
A printing apparatus equipped with a transport unit, detection unit, operation unit, and control unit that detects the transport direction and amount of the printing medium after manual operation, allowing for adjustment of image intervals to a preset distance or maintaining the interval set by user operation, ensuring consistent spacing between printed images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to transport the printing medium for checking printed images, then the user can inspect the printed material, but the interval between images becomes irregular when printing is restarted
Solution Approach 1:
The detection unit detects the actual position of the printing medium after manual transport, and the control unit uses this feedback information to calculate and apply the necessary correction. The system measures the transport amount and direction, then determines the appropriate transport amount for the transport unit to restore the preset interval, ensuring uniform image spacing is maintained despite manual intervention.
Solution Approach 2:
The system pre-stores the preset interval distance between images and prepares the detection and control mechanisms in advance. When manual transport occurs, the system already has the reference interval data ready to compare against the actual position, enabling quick calculation and correction of the transport amount needed to restore proper spacing.
2Ease of operation
If the printing medium is transported manually after printing the first image, then the user can check the printed image, but the interval between the first image and second image becomes irregular
Solution Approach 1:
The detection unit provides real-time feedback on the printing medium's position after manual transport. The control unit processes this feedback to determine the exact transport amount needed to restore the preset interval, ensuring that the second image is printed at the correct position relative to the first image regardless of manual intervention.
Solution Approach 2:
The system dynamically adjusts the transport amount based on the actual manual transport that occurred. Rather than using a fixed predetermined value, the transport unit's control is dynamically modified according to the detected position change, allowing the system to adapt to various manual transport scenarios while maintaining image spacing consistency.
3Manufacturing precision
If automatic transport is used to maintain uniform intervals, then image spacing is consistent, but the user cannot manually inspect printed images during printing
Solution Approach 1:
The system continuously monitors the printing medium position through the detection unit, providing feedback that enables automatic correction after manual transport. This feedback mechanism allows the system to switch between manual and automatic modes seamlessly, maintaining precision while enabling user inspection when needed.
Solution Approach 2:
The system pre-stores the preset interval data and prepares the detection and control systems in advance, enabling quick transition from manual inspection mode back to automatic transport mode. The preliminary preparation of reference data allows the system to rapidly recalculate and restore uniform intervals after the user completes manual inspection.
Data Source
AI summary
Provided is a printer that includes a transport unit configured to transport a printing medium; a detection unit configured to detect a transport direction in which the printing medium is transported by the transport unit and a transport amount of the printing medium; and a control unit that makes the transport unit transport the printing medium after the printing of the first image, makes the detection unit detect the transport direction and the transport amount of the printing medium, determines a transport direction in which the printing medium is to be transported and a transport amount of the printing medium to be transported based on the detected transport direction and the detected transport amount, and makes the transport unit transport the printing medium based on the above determined transport direction and transport amount before printing a second image which is formed an image subsequent to the first image.