Printer Cassette Jam Clearing via Linking Rod Rotation
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Solution Overview
Problem
Printer devices often become inoperative due to media jams in the media path, requiring manual intervention to clear jams, which can be cumbersome and risk losing or damaging the jam clearing cassette.
Innovation Solution
A media path jam clearing assembly that includes linking rods and guide rails, allowing the cassette body to be pulled out and rotated for easy access, remaining attached to the printer, thus facilitating jam clearing and reinsertion without the risk of loss or damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cassette is removed from the printer for jam clearing, then access to the media path is improved, but the risk of loss or damage increases
Solution Approach 1:
The cassette is extracted from its normal position within the printer and moved to an external position where it can be accessed for jam clearing, while still maintaining attachment through the linking rod mechanism
Solution Approach 2:
A linking rod acts as an intermediary component that connects the cassette to the printer housing, allowing the cassette to be moved outside the printer for access while preventing complete removal that would cause loss or damage
2Ease of operation
If the cassette is manually handled for jam clearing, then access to the media path is improved, but the complexity of the clearing process increases
Solution Approach 1:
The cassette is made dynamically movable between an internal position (normal operation) and an external position (jam clearing), allowing easy access to the media path while maintaining a simple attachment mechanism through the linking rod
Data Source
AI summary
One example includes an apparatus comprising spaced apart rails, each of the rails including an opposing slot that extends longitudinally and parallel to each other and terminates at a stop located at an end of the rail. Support holders may attach to opposing sidewalls of a cassette body insertable between the rails. Elongated rods may link each rail and a corresponding one of the support holders. One end of each rod may fit in a respective slot to enable longitudinal movement of the rods relative to the rails, engagement between the one end of each rod and respective rail stop cooperating to enable rotation of the rods relative to the rails in a direction that is transverse to the longitudinal movement. Another end of each of the rods may be movably retained within a respective one of the support holders.