Print Pen Capping Mechanism for Compact Printer Footprint
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Printers with movable print heads face challenges in minimizing footprint and improving reliability, particularly in environments where space is limited, and existing capping systems do not efficiently manage print pen sealing and storage.
Innovation Solution
A cap station mechanism that folds concertina-like for storage, allowing independent articulation of rigid portions to reduce space requirements, and moves between retracted and capping positions to seal print pens using caps, supported by an impelling cable and pulley system, enabling efficient capping and uncapping of print pens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cap station mechanism is added to seal print pens, then reliability is improved, but device complexity increases
Solution Approach 1:
The cap station is divided into multiple rigid portions that can independently articulate relative to each other. Each portion can be controlled separately to cap specific print pens, allowing the system to handle varying numbers of pens without requiring a completely different mechanism for each configuration.
Solution Approach 2:
The cap station portions are made movable and adjustable rather than fixed. The rigid portions can articulate independently to adapt to different print head configurations, transforming a static capping mechanism into a dynamic one that can accommodate various scenarios.
2Reliability
If the cap station is made large to accommodate multiple print pens, then reliability is improved, but the printer footprint increases
Solution Approach 1:
The cap station is segmented into multiple independent rigid portions that can be positioned and sized according to the specific needs of the print head. This allows the system to provide comprehensive coverage for multiple pens without requiring a single large monolithic cap station structure.
Solution Approach 2:
The cap station portions can move in multiple dimensions, articulating relative to each other and to the print head. This multi-dimensional movement capability allows the system to achieve comprehensive pen coverage while maintaining a compact overall footprint, as the portions can be positioned precisely where needed rather than requiring space for all possible positions simultaneously.
3Adaptability or versatility
If rigid portions are made movable for articulation, then adaptability is improved, but device complexity increases
Solution Approach 1:
The system is divided into discrete rigid portions that can independently articulate. Each portion can be controlled separately, allowing for simplified individual components rather than a complex integrated mechanism. The segmentation enables modular control and easier maintenance.
Solution Approach 2:
The movable rigid portions serve multiple functions: they can articulate to reach different print pens, adjust to various print head configurations, and provide sealing contact surfaces. This multi-functionality reduces the need for separate mechanisms for each function, thereby reducing overall complexity despite the added mobility.
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 reduces the printer's footprint, enhances reliability by ensuring proper sealing of print pens, and simplifies the design of large-scale printers by eliminating the need for additional support structures, while maintaining efficient printing capabilities.
Implementation Method 1
supported by an impelling cable and pulley system, enabling efficient capping and uncapping of print pens
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A print pen capping apparatus for a printer comprises a cap station carrying one or more caps, wherein the cap station is moveable between a retracted position in which the cap station is arranged at a side of a print media path and a capping position adjacent the media path for capping the print pen.