Print Head Memory Component Bi-Directional Data Communication
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Solution Overview
Problem
Current print heads lack efficient and cost-effective methods for communicating and storing printer and print head information, limiting flexibility and optimal performance, especially in specialized applications, due to the use of read-only memory and the need for additional communication connections.
Innovation Solution
Incorporating a memory component in the print head that allows bi-directional communication with the printer using existing communication lines, enabling secure and non-secure data storage and transmission, which can be easily upgraded without additional hardware, facilitating improved print head and printer functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If read-only memory is used in the print head, then data storage is provided, but flexibility and upgradability are limited
Solution Approach 1:
The patent transitions from static read-only memory to dynamic rewritable memory, allowing the print head to be reconfigured and upgraded multiple times throughout its service life. The memory can be rewritten with new firmware, calibration data, or configuration parameters, enabling the same physical print head to adapt to different printing applications and performance requirements.
Solution Approach 2:
The patent enables changing of memory contents (firmware, calibration data, configuration parameters) without altering the physical print head structure. This allows software-based upgradability where performance parameters, operating characteristics, and functional capabilities can be modified by rewriting the memory, providing flexibility equivalent to hardware changes without actual hardware replacement.
2Loss of information
If additional communication connections are added for data transmission, then information exchange capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent makes the existing unidirectional data input connection bidirectional, allowing it to serve multiple functions: receiving print data from the printer, transmitting memory contents to the printer, and enabling two-way communication protocols. This eliminates the need for separate dedicated communication lines while maintaining full information exchange capability.
Solution Approach 2:
The print head uses its own existing data input connection to handle both input and output communication needs, rather than requiring external dedicated communication infrastructure. The memory component communicates with the printer through the print head's existing connection infrastructure, making the system self-sufficient in terms of communication pathways.
3Reliability
If secure memory is implemented, then data security is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent combines secure memory functionality with the standard memory component that is already integrated into the print head. Rather than adding a separate secure memory module, the security features are implemented within the existing memory architecture, sharing the same physical space, power supply, and communication interface, thereby reducing manufacturing complexity.
Solution Approach 2:
The patent creates a composite memory system that integrates both secure and non-secure storage capabilities within a single memory component. This allows different types of data (secure calibration data, proprietary algorithms, and general configuration parameters) to be stored in the same physical memory device with appropriate access controls, rather than requiring physically separate secure and non-secure memory modules.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a flexible and cost-effective means to upgrade printer operation by allowing secure and non-secure data communication and storage on the print head, reducing the need for dedicated firmware updates and enhancing print quality across various printing methods and applications.
Implementation Method 1
In the case of direct thermal printing, indicia is created on the printable media by heating up an area of the printable media directly beneath the activated elements. The temperature-sensitive coating of the media reacts to the increase in temperature and the indicia is created on the printable media.
Data Source
AI summary
A print head for use with a printer. The print head includes an input that receives data or commands associated with printing from the printer. A memory component of the print head is connected in communication with the input and is configured to bi-directionally communicate information to the printer via the input. For example, the memory component may be soldered to a circuit of a print head and connected to a data line normally used to communicate print data to the print head. In this manner, the print head may hold configuration information in the memory module for easy upgrades without an additional dedicated communication line. Also, printers may be upgraded, and print heads retrofit, with the memory component without installation of a dedicated input or communication line.