Detachable Printer Cutting Unit Grounding for Static Noise Reduction
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Solution Overview
Problem
Existing printers generate static electricity on cutting blades due to sliding between the cutter blade and the medium, and connecting the cutter blade to the printer's metal frame is time-consuming.
Innovation Solution
A printer configuration that includes a detachable cutting unit with a cutting blade connected via a harness to a ground conductor, allowing easy attachment and grounding of the cutting blade to reduce static electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cutter blade is connected to the metal frame of the printer by screws or soldering, then static electricity is removed, but the operation becomes time-consuming
Solution Approach 1:
The printer is divided into a main body and a detachable movable portion, each with its own cutting blade. This segmentation allows the cutting unit to be independently attached and detached without permanent connection, enabling easy grounding while saving time.
Solution Approach 2:
The cutting unit is designed with dynamic attachment capability through the movable portion that can open and close. The cutting blade can be quickly connected to the ground through the movable portion's grounding contact without requiring permanent screws or soldering, achieving both ease of operation and effective static electricity removal.
2Reliability
If the cutter blade is permanently fixed to the housing, then grounding is reliable, but the device complexity increases
Solution Approach 1:
The grounding function is segmented from the main printer structure and integrated into the movable portion. This allows the grounding contact to be simple and reliable while avoiding complex permanent fixation structures.
Solution Approach 2:
The movable portion acts as an intermediary between the cutting blade and the ground. It provides a simple grounding contact mechanism that is both reliable and easy to implement, avoiding the need for complex screw or soldering connections.
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 effectively removes noise generated by static electricity on the cutting blade with a simple operation, enhancing the printer's functionality and reducing noise interference.
Implementation Method 1
the first cutting blade conducts to a ground of the substrate via the first harness, the second connector, and the first connector
Implementation Method 2
the second connector is configured to connect to the first connector and connects to another end of the first harness
Data Source
AI summary
A printer includes a substrate, a first connector, and a first unit. The substrate is housed in a housing. The first connector is electrically connected to the substrate. The first unit is detachably attached to a mount portion. The first unit includes a first cutting blade, a first harness, and a second connector. The first cutting blade is configured to cut the medium printed. The first harness has one end connected to the first cutting blade. The second connector is configured to connect to the first connector and connects to another end of the first harness. With the first unit attached to the mount portion and the second connector connected to the first connector, the first cutting blade conducts to a ground of the substrate via the first harness, the second connector, and the first connector.