Printer Display Mode for Product Information Source
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Solution Overview
Problem
Label printers often print outdated product information due to a time lag in updating information from a server, and operators are not informed if the printed information is from the server or the printer's local storage, leading to potential inaccuracies.
Innovation Solution
A printer system with an input device, communication interface, memory device, print device, display device, and controller that records update dates for product information, displays the origin of the information to be printed, and allows users to change it when offline, ensuring accurate and up-to-date labeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the label printer receives product information from the server device at predetermined timing, then the recording unit is updated with product information, but there is a time lag from update of the product information of the server device to update of the product information recorded in the recording unit
Solution Approach 1:
The label printer performs preliminary actions by continuously monitoring server availability and pre-loading product information when the server is accessible. The system checks server connectivity beforehand and stores information in advance, so that when printing is needed, the most current available information is already in the recording unit, minimizing the effective time lag.
Solution Approach 2:
The system implements feedback by continuously monitoring whether the server device is capable of transmitting product information. Based on this feedback, the label printer dynamically adjusts its behavior - attempting to receive updates when the server is available, and switching to using stored information when the server is unavailable. The system also provides feedback to the operator about the source and timeliness of the information being used.
2Productivity
If the label printer reads product information from the recording unit when incapable of receiving from the server device, then printing can continue, but the product information printed may not be the newest product information
Solution Approach 1:
The display device provides feedback to the operator indicating whether the product information to be printed comes from the server device or from the recording unit. This feedback mechanism allows the operator to understand the source and potential age of the information being printed, maintaining transparency about information freshness while enabling continuous operation.
Solution Approach 2:
The system performs preliminary checks to determine server availability before printing operations. When the server is available, information is freshly retrieved; when unavailable, the system has already prepared to use stored information. This preliminary assessment ensures printing continuity while maximizing information freshness based on server availability at the time of each printing operation.
3Device complexity
If the label printer does not inform the operator about the source of product information, then the system operates simply, but the operator cannot recognize if the product information is from the recording unit or the server device
Solution Approach 1:
The display device serves as an intermediary that bridges the gap between the complex internal data sources and the operator. It translates the technical state (which source is being used) into human-readable information, allowing the operator to understand the origin of the product information without adding significant complexity to the overall system operation.
Data Source
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AI summary
According to an embodiment, a printer includes a display device and a controller device. The display device displays one of product information received from an external device and product information recorded in a memory device, as product-information-to-be-printed. When the printer is incapable of receiving the product information from the external device, the controller device controls the display device to display the product information recorded in the memory device, in a display mode indicating that the product-information-to-be-printed is the product information recorded in the memory device.