Printing Apparatus Abutment Portion for Cut Position Accuracy
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Solution Overview
Problem
Existing printing apparatuses face issues with the leading edge of a printing medium floating due to cockling or ink application, causing the cut position to deviate undesirably during cutting, especially in conveyance directions.
Innovation Solution
Incorporating an abutment portion that abuts the printing surface at an inner position relative to the cut position in the width direction, intersecting the conveyance direction, to stabilize the printing medium and prevent cutting deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the leading edge of the printing medium is inserted to the slitter for cutting, then the printing medium can be cut along the conveyance direction, but the leading edge may float due to cockling or ink application causing the cut position to deviate in the direction orthogonal to the conveyance direction
Solution Approach 1:
The abutment portion is positioned upstream of the cutting position to preemptively stabilize the printing medium before it reaches the slitter. By abutting on the printing surface at an inner position relative to the cut position, the abutment portion prevents floating of the leading edge in advance, ensuring the medium is properly positioned when it reaches the cutting point, thus preventing cut position deviation
Solution Approach 2:
The abutment portion acts as an intermediary element between the printing medium and the slitter. It provides a stabilizing force on the printing surface without directly interfering with the cutting operation, mediating the interaction between the conveyed medium and the cutting mechanism to maintain positional accuracy
Data Source
AI summary
To provide a printing apparatus and a conveyance apparatus that are capable of preventing a cut position to be cut by a slitter (cutting unit) from deviating, a printing apparatus, which is configured to perform printing by use of a printing unit on a printing medium conveyed by a conveyance unit and is configured to cut the printing medium on which the printing has been performed by the printing unit by use of a cutting unit at a cut position along a conveyance direction of the conveyance unit, includes an abutment portion configured to abut on a printing surface of the printing medium at an inner position relative to the cut position in a width direction of the printing medium, the width direction that crosses the conveyance direction.