Ticket Printer Swing Roller Head and Removable Paper Guide
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Solution Overview
Problem
Conventional ticket printers are prone to paper jams and lack easy maintenance and serviceability, which can lead to mutilation or destruction of tickets during printing and dispensing, especially in self-serve scenarios.
Innovation Solution
A ticket printer design featuring a long paper pathway with structural elements that minimize jamming, including a removable paper guide and a swingable print roller head for easy access and cleaning, along with integrated paper guides and a compact housing for enhanced reliability and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional compact ticket printer design is used, then the device occupies less space and has simpler structure, but it is prone to paper jams and difficult to maintain
Solution Approach 1:
The printer is divided into separable components including a removable paper guide assembly and a swingable print roller head assembly. This segmentation allows each component to be independently accessed, removed, or serviced without disassembling the entire device, thereby reducing paper jams through proper paper guidance while maintaining ease of maintenance despite increased structural complexity.
Solution Approach 2:
The print roller head is designed to swing between a printing position and a retracted position. This dynamic mechanism allows the print roller head to move out of the paper pathway when not in use, facilitating easy paper jam removal and cleaning access without requiring complete device disassembly, thus improving reliability while managing structural complexity.
2Reliability
If the paper pathway is made longer with structural elements to minimize jamming, then paper jam occurrences are reduced, but the device size increases and may not suit space-constrained environments
Solution Approach 1:
The paper guide assembly is designed to nest within or alongside other printer components when not in use. The removable paper guide can be stored in a dedicated compartment or positioned to occupy minimal space, allowing the device to maintain a compact form factor while still providing the extended paper pathway needed to reduce paper jams during operation.
3Ease of repair
If the print roller head is made swingable for easy access and cleaning, then maintenance ease is improved, but the mechanical complexity and potential failure points increase
Solution Approach 1:
The swingable print roller head is designed with a simple pivot mechanism that allows users to easily swing the assembly into position for cleaning or maintenance without requiring specialized tools or complex disassembly procedures. The self-contained design of the swing mechanism minimizes additional failure points while maximizing ease of user-serviceable maintenance.
Data Source
AI summary
A ticket printer includes a housing having a frame and a front panel concurrently formed as a single unit. A printer unit is positioned in the housing and includes a print body and swing assembly having a print roller head. The swing assembly can be selectively rotated away from the print body for maintenance and cleaning. A paper guide, located at an outlet side of the printer unit, is positioned within the housing. Paper is routed between the print roller head and the print body of the printer unit. The paper guide directs the paper along a paper pathway and out of a ticket outlet in the front panel. The paper guide may be transparent to visualize jammed paper in the paper pathway. Paper directing ramps formed in the swing assembly and the paper guide direct the paper into the paper pathway and downwardly to the ticket outlet.