Linerless Thermal Printer Paper Path for Adhesive and Jam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Thermal printers face issues with the degradation of printing quality due to worn rollers, accumulation of adhesive on the non-adhesive surface of linerless recording paper, and jamming caused by the rolled ends of the paper, with inaccurate estimation of platen roller replacement times.
Innovation Solution
The printing device includes a main body part with support parts to prevent adhesive accumulation and a pressurizing part to prevent paper rolling, along with a release roller to manage adhesive and ensure smooth paper transfer, and a recording paper separation part to cut and separate printed paper effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the recording paper is provided as a roll and transferred through the internal space, then printing efficiency is improved, but the adhesive on the back surface soils the recording paper and causes accumulation on components
Solution Approach 1:
The patent extracts the harmful adhesive substance from the recording paper transfer path by introducing a separate adhesive removal unit. This unit uses a removal roller that contacts the back surface of the recording paper to extract and collect adhesive before it can soil other components, thereby resolving the contradiction between efficient roll-based printing and adhesive contamination
Solution Approach 2:
The patent introduces an intermediary adhesive removal mechanism between the recording paper roll and the printing components. The removal roller acts as a mediator that intercepts and removes adhesive from the back surface of the recording paper, preventing it from accumulating on critical printing components while maintaining the efficiency of roll-based transfer
2Ease of operation
If the end of the recording paper is not constrained, then feeding is simplified, but the end rolls and causes jamming at the outlet
Solution Approach 1:
The patent applies preliminary anti-action by introducing a guide structure and constraint mechanism at the outlet that prevents the recording paper end from rolling before it can cause jamming. The guide walls and positioning features create a controlled path that counteracts the natural tendency of the paper end to curl, ensuring reliable discharge without compromising feeding simplicity
Solution Approach 2:
The patent solves the jamming problem by adding spatial constraints in the vertical and lateral dimensions at the outlet. The guide structure extends the transfer path into additional spatial dimensions, creating a three-dimensional constraint system that prevents paper end rolling while maintaining simple linear feeding motion
3Duration of action of moving object
If the platen roller diameter decreases due to wear, then printing continues, but printing quality degrades
Solution Approach 1:
The patent implements preliminary action by introducing a sensor system that monitors platen roller diameter and predicts wear before it significantly impacts printing quality. The system performs preliminary detection and issue identification, allowing for proactive maintenance scheduling that prevents quality degradation while maximizing roller service life through data-driven replacement timing
4Duration of action of stationary object
If the feeding roller and pressurizing roller gap increases due to feeding roller wear, then transfer continues, but recording paper transfer becomes problematic
Solution Approach 1:
The patent applies dynamics by introducing an adjustable pressurizing mechanism that can dynamically compensate for feeding roller wear. The pressurizing force is made variable and adaptable, allowing the system to maintain reliable recording paper transfer despite increasing gap dimensions caused by roller wear over time
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
The solution ensures smooth paper transfer, prevents adhesive accumulation, and maintains printing quality by accurately estimating platen roller replacement times, thereby reducing jamming and degradation issues.
Implementation Method 1
a head configured to generate heat to print the certain information
Data Source
AI summary
Disclosed is a printing device including a main body part including a body part configured to provide an internal space in which recording paper for printing certain information thereon is transferred and an opening or closing part configured to control opening or closing of the internal space, a printing part configured to print the certain information on the recording paper transferred in the internal space, and a recording paper separation part located on a downstream side of the printing part and configured to cut or cut off and separate recording paper on which particular information is printed by the printing part from the other recording paper. Here, the main body part includes a protruding part configured to prevent an adhesive attached to the surface opposite the adhesive surface from being accumulated by decreasing a contact area with the surface opposite the adhesive surface.