Recording Device Nozzle Surface Damage Prevention
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Solution Overview
Problem
Existing recording devices face issues with damage to the recording head and nozzle surface due to improper movement during error conditions such as jam errors or power cutoffs, where the maintenance portion may rub against the nozzle surface, leading to potential damage.
Innovation Solution
A recording device with a control method that includes a recording portion, a first maintenance portion, and movement portions allowing the recording portion to retreat from the maintenance portion in specific directions, ensuring safe separation and preventing interference, utilizing sensors to detect positions and facilitate recovery operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the maintenance portion moves to perform maintenance on the nozzle surface, then maintenance function is improved, but the risk of damage to the recording head and nozzle surface increases when errors occur
Solution Approach 1:
The control portion causes the recording portion to retreat away from the maintenance portion before the maintenance portion moves to perform maintenance. This preliminary retreat action prevents potential damage by ensuring the recording head is positioned safely away from the maintenance portion before any maintenance operations begin, thereby eliminating the risk of collision or rubbing during error conditions.
2Productivity
If the recording portion and maintenance portion move for origin searching operation after error, then recovery operation is enabled, but the maintenance portion may rub against the nozzle surface causing damage
Solution Approach 1:
Before the maintenance portion moves for origin searching operation, the control portion first causes the recording portion to retreat away from the maintenance portion. This preliminary retreat ensures that the recording head is positioned safely away from the maintenance portion's path, preventing rubbing damage while enabling the maintenance portion to perform origin searching and recovery operations.
Solution Approach 2:
Instead of moving the maintenance portion first and then the recording portion, the control portion inverts the sequence by first moving the recording portion away from the maintenance portion, and then moving the maintenance portion for origin searching. This inverted sequence prevents the maintenance portion from rubbing against the nozzle surface during recovery operations.
3Manufacturing precision
If the maintenance portion is movable along the nozzle surface for maintenance, then maintenance precision is improved, but the complexity of movement control increases
Solution Approach 1:
The movement control is segmented into distinct sequences: first the recording portion retreats along the first direction away from the maintenance portion, then the maintenance portion moves along the second direction (along the nozzle surface) to perform maintenance. This segmentation of movement into separate, controlled stages simplifies the overall control complexity while maintaining high maintenance precision through the dedicated maintenance portion movement.
Data Source
AI summary
A recording portion has a nozzle surface. A first movement portion moves the recording portion in a first direction intersecting the nozzle surface. A second movement portion moves a first maintenance portion in a second direction along the nozzle surface. The recording portion is movable to a recording position at which recording is performed on a medium, and a first retreated position where the recording portion is retreated from the recording position. The first maintenance portion is movable to a maintenance position at which maintenance of the nozzle surface is performed and a second retreated position retreated from the maintenance position. When an error occurs, a control portion causes the recording portion to retreat away from the first maintenance portion in a first direction. Then, the first maintenance portion is caused to retreat in a second direction.