Printer Head Maintenance via Opposed Region Merging
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Solution Overview
Problem
Existing printing apparatuses face challenges in maintaining the head without increasing the apparatus's size, as they require a separate region for the mirror used in maintenance, leading to increased size and complexity.
Innovation Solution
The printing apparatus includes an attachment unit for the medium support portion, a head that can move in two directions parallel to the support face, a control unit to manage these movements, and a notification unit that prompts the user to detach the medium support portion before moving the head to a cleaning position within the opposed region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a separate region is provided for the mirror used in head maintenance, then the head can be visually recognized from the outside when disposed in the maintenance region, but the size of the printing apparatus increases
Solution Approach 1:
The patent merges the maintenance region with the opposed region by positioning the mirror in the opposed region. The head moves to a cleaning position within the opposed region that is also the maintenance region, allowing maintenance operations to be performed in the same space used for normal printing operations, thereby eliminating the need for a separate maintenance region and reducing apparatus size.
Solution Approach 2:
The opposed region is given multiple functions: it serves as both the printing region (where the head discharges liquid to the medium) and the maintenance region (where the head can be cleaned and visually recognized). This multi-functional use of space allows the apparatus to perform maintenance without requiring additional dedicated space.
2Ease of repair
If the head moves to a cleaning position within the opposed region, then maintainability is improved without increasing apparatus size, but the medium support portion may interfere with head movement
Solution Approach 1:
The notification unit provides preliminary notification to the user before the head moves to the cleaning position, informing them that the medium support portion needs to be detached. This allows the user to prepare in advance by removing the medium support portion, ensuring unobstructed head movement to the cleaning position without collision or interference.
Solution Approach 2:
The notification unit acts as an intermediary between the control unit and the user, transmitting information about the required user action (detaching the medium support portion) before the head movement occurs. This ensures the user is aware of the necessary preparation, preventing operational conflicts during the maintenance process.
Data Source
AI summary
A printing apparatus includes: an attachment unit configured to enable a medium support portion to be attached and detached, the medium support portion including a support face; a head; a first movement unit configured to move the head; a second movement unit configured to move the head; a control unit configured to control the first movement unit and the second movement unit; an input unit; and a notification unit. The head is configured to move to an opposed region in which the head is opposed to the support face. When a movement instruction is inputted into the input unit, the notification unit gives notification that prompts the user to detach the medium support portion, and the control unit causes the head to move from a standby position to a cleaning position, a portion of or whole of the cleaning position being included in the opposed region.