Detachable Transport Path Units for Printer Jam Inspection
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Solution Overview
Problem
Existing recording apparatuses face difficulties in visually inspecting and easily removing paper jams from reverse and return transport paths, especially with small-sized paper, due to limited exposure and accessibility of these paths when the transport unit is detached from the printer body.
Innovation Solution
The recording apparatus design includes detachable path forming portions that expose parts of the second and third medium transport paths when the unit body is removed, allowing for improved visibility and easy access to check and remove jams, with additional features like ribbed surfaces for easier jam recognition and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the transport unit is detachably attached to the printer body, then the return path and reverse transport path can be visually observed when pulled out, but the paths are not widely opened and small size paper jams may not be visible
Solution Approach 1:
The transport unit is divided into detachable path forming portions (first, second, and third path forming portions) that can be separated from the apparatus main body. This segmentation allows users to remove specific portions to access and inspect different sections of the transport paths, making paper jams visible and accessible for removal.
Solution Approach 2:
The path forming portions are extracted from the apparatus main body as detachable components. When removed, these portions expose the transport paths (second medium transport path and third medium transport path) that would otherwise be hidden inside the printer, enabling visual inspection and easy access to paper jams.
2Difficulty of detecting and measuring
If the auxiliary unit is opened upward to check for paper jams, then the return path and reverse transport path can be widely opened, but this process is troublesome and time-consuming
Solution Approach 1:
The path forming portions are designed to be pre-attached to the apparatus main body in a ready-to-remove state. When a paper jam is detected, users can directly remove the relevant path forming portion without needing to open or disassemble any auxiliary units, thereby eliminating the time-consuming opening process and enabling immediate inspection.
3Ease of operation
If the second and third medium transport paths are positioned inside the apparatus main body, then the structure is compact, but the paths are not accessible for easy inspection and jam removal
Solution Approach 1:
The transport paths are segmented into separate path forming portions that can be independently removed from the apparatus main body. This allows the compact internal structure to be maintained during normal operation, while enabling easy access to specific path sections when inspection or maintenance is needed.
Solution Approach 2:
The path forming portions transition from a fixed integrated state during normal operation to a removable detached state during maintenance. This dynamic design allows the system to switch between compact operation mode and accessible maintenance mode, providing both structural integrity and ease of service.
Data Source
AI summary
A recording apparatus includes a reverse path for reversing a surface of a medium, a second medium transport path for guiding the medium on which recording has been performed to the reverse path, a third medium transport path which is positioned vertically below the second medium transport path and guides the medium on which recording has been performed to the reverse path, in which a first path forming portion that forms the reverse path, a second path forming portion that forms a part of an upper side of the second medium transport path, and a third path forming portion that forms a part of an upper side of the third medium transport path are constituted to be attachable and detachable as a unit body, and a part of the second medium transport path and a part of the third medium transport path are exposed by removing the unit body.