Printhead Fiber Detection and Removal System
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Solution Overview
Problem
Existing printing technologies face challenges in effectively detecting and removing paper fibers that block printhead nozzles, leading to reduced printing quality and increased costs due to ineffective servicing routines and error-hiding techniques that fail to compensate for moving fibers.
Innovation Solution
A fiber detection and removal system utilizing a sensing device and a fiber service module, which includes an identification engine to detect blocked nozzles and a triggering engine to initiate a fiber removal event, employing a wiper arm or air pressure to remove fibers from printhead nozzles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If regular priming servicing is used to remove fibers, then nozzle blockages may be resolved, but ink and time are wasted due to ineffective servicing
Solution Approach 1:
The patent applies preliminary action by detecting fiber blockages before they cause printing failures. The fiber detection device identifies fibers on the printhead surface in advance, allowing the system to trigger targeted fiber removal events only when fibers are actually present, rather than performing routine priming servicing that wastes time and ink.
2Manufacturing precision
If error-hiding techniques are used to compensate for blocked nozzles, then print quality may be maintained, but speed is reduced due to multiple passes
Solution Approach 1:
The patent applies the extraction principle by removing fibers from the printhead surface using a fiber removal device. This eliminates the root cause of nozzle blockages rather than compensating for them through error-hiding techniques. By extracting the harmful fibers, the system maintains both print quality and speed without requiring multiple compensatory passes.
3Reliability
If routine wiping is performed to remove fibers, then fiber blockages may be resolved, but unnecessary delays occur when no fibers are present
Solution Approach 1:
The patent applies feedback by using a fiber detection device to monitor the printhead surface continuously. The system receives feedback about fiber presence and adjusts its behavior accordingly - triggering fiber removal events only when fibers are detected. This feedback mechanism eliminates unnecessary wiping operations and associated delays while maintaining reliable nozzle functionality.
4Manufacturing precision
If fiber removal events are triggered frequently, then print quality is maintained, but printing speed and efficiency decrease
Solution Approach 1:
The patent applies preliminary action by detecting fibers before they cause print quality degradation. The fiber detection device identifies fibers in advance, allowing the system to trigger removal events only when necessary. This prevents both quality issues and unnecessary interruptions that would reduce printing speed.
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
This solution improves printing quality and speed by accurately identifying and removing fiber blockages, reducing unnecessary delays and ink wastage, and maintaining print quality and speed even with moving fibers.
Implementation Method 1
A fiber detection and removal system utilizes a sensing device and a fiber service module, which includes an identification engine to detect blocked nozzles
Implementation Method 2
employing a wiper arm or air pressure to remove fibers from printhead nozzles
Implementation Method 3
employing a wiper arm or air pressure to remove fibers from printhead nozzles
Data Source
AI summary
In one embodiment, a method to detect and remove fibers comprises identifying blocked nozzles in a grouping of nozzles within a printhead, and triggering a fiber removal event if it is determined that a plurality of adjacent nozzles are blocked.