Printer Platen Conveyance Timing for Variable Platen Sizes
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Solution Overview
Problem
Existing printers fail to adjust the conveyance time period of the platen between the set position and the printing position based on the platen size, leading to inconsistent printing performance across different platen sizes.
Innovation Solution
A printer system that includes a processor-controlled conveyance mechanism to adjust the conveyance time period based on the acquired platen size, allowing for distinct conveyance times when different platen sizes are used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the reference position is shifted in the sub-scanning direction in accordance with the platen size, then the printing position alignment is improved, but the conveyance time period between set position and printing position becomes constant regardless of platen size
Solution Approach 1:
The patent applies dynamics by making the conveyance time period variable rather than fixed. The control unit dynamically adjusts the conveyance time period based on the detected platen size, allowing the system to adapt its timing characteristics to different platen configurations while maintaining proper printing position alignment.
Solution Approach 2:
The patent changes the parameter of conveyance time period based on platen size. The control unit modifies the conveyance time period parameter according to the detected platen size, enabling the system to optimize both printing alignment and conveyance timing for different platen configurations by adjusting this key parameter.
2Device complexity
If a constant conveyance distance is used between set position and printing position, then the device structure is simplified, but the printing performance becomes inconsistent across different platen sizes
Solution Approach 1:
The patent implements feedback by using the control unit to detect platen size and use this information to adjust the conveyance time period. This feedback mechanism ensures that the system maintains consistent printing performance across different platen sizes by automatically adapting its conveyance parameters based on the actual platen configuration.
Solution Approach 2:
The patent changes operational parameters (conveyance time period) based on detected platen size to maintain printing performance consistency. By adjusting the conveyance time period parameter according to platen size, the system achieves reliable printing results across different configurations without requiring a complex conveyance mechanism structure.
Data Source
AI summary
A printer is provided with a head, a platen, a conveyer, and a processor. The head performs printing on a print medium. The platen supports the print medium. The conveyer conveys the platen in a conveyance direction. The processor acquires a platen size. The platen size is a size of the platen in the conveyance direction. When the processor acquires a first platen size, the processor controls a conveyance operation of the platen such that a conveyance time period of the platen between a set position and a printing position is a first time period. When the processor acquires a second platen size, the processor controls the conveyance operation of the platen such that the conveyance time period of the platen between the set position and the printing position is a second time period different from the first time period.