Printer Movable Rib Height Adjustment for Sheet Curl and Alignment
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Solution Overview
Problem
Existing recording apparatuses fail to effectively mitigate sheet curl and maintain alignment due to environmental changes in temperature and humidity, leading to misalignment issues when relying solely on sheet size and coverage rate for protrusion adjustments.
Innovation Solution
A recording apparatus with a protrusion mechanism that adjusts its height based on temperature, humidity, and ink amount, using a move section to control the protrusion's position and air blow section to manage curl and alignment, featuring a mount surface design with varying angles and air pressure to support and align sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the protruding rib height is adjusted based on sheet size and coverage rate, then sheet curl mitigation is improved, but alignment accuracy deteriorates in environments where curl mitigation is not needed
Solution Approach 1:
The protrusion mechanism transitions from a static fixed-height design to a dynamic adjustable-height design. The controller dynamically adjusts the protrusion height based on real-time environmental conditions (temperature and humidity) detected by sensors, allowing the system to adapt to changing conditions and optimize both sheet curl mitigation and alignment accuracy for each specific environment.
Solution Approach 2:
The system changes the physical parameter of protrusion height based on environmental parameters (temperature and humidity). By detecting environmental conditions and adjusting the protrusion height accordingly, the system optimizes sheet curl mitigation while preventing alignment issues that occur when protrusion is applied in environments where it is not needed.
2Stability of the object's composition
If the protruding rib is caused to protrude based on sheet size and coverage rate, then sheet curl is reduced, but sheet misalignment occurs in environments where curl mitigation is unnecessary
Solution Approach 1:
The system incorporates environmental sensors that continuously monitor temperature and humidity conditions. The controller receives this feedback and adjusts the protrusion height accordingly, creating a closed-loop control system that adapts to environmental changes and optimizes both sheet curl control and alignment precision.
Solution Approach 2:
The protrusion mechanism is made dynamic through the controller that adjusts protrusion height in real-time based on environmental conditions. This dynamic adjustment allows the system to provide curl mitigation when needed while avoiding misalignment in environments where curl is not an issue.
3Device complexity
If a fixed protrusion height is used for all conditions, then device complexity is reduced, but adaptability to different environmental conditions deteriorates
Solution Approach 1:
The protrusion mechanism is designed to serve multiple functions: it can provide sheet curl mitigation when environmental conditions require it, and it can be retracted to avoid causing misalignment in conditions where curl is not an issue. This multi-functionality is achieved through the controller that adjusts protrusion height based on environmental sensors.
Solution Approach 2:
The system transitions from a static fixed-height protrusion mechanism to a dynamic adjustable-height mechanism controlled by environmental conditions. This dynamic design enables the simple mechanical structure to adapt to various environmental conditions while maintaining ease of operation.
Data Source
AI summary
A printer includes a record section, a discharge section, a mount section, a movable rib, a move section, and a control section. The record section records on a sheet by ejecting an ink to the sheet. The discharge section discharges the sheet. The mount section has a mount surface on which the sheet discharged is mounted. A movable rib is configured to protrude from the mount surface and supports the sheet. The dimension of the movable rib in an A-direction is larger than the dimension thereof in a Y-direction. The move section moves the movable rib in a C-direction. The control section controls, based on temperature and humidity information, movement of the movable rib made by the move section.