Image Processing Apparatus Preventing Recurring Document Jams
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Solution Overview
Problem
Image processing apparatuses face recurring jams when handling documents of different sizes and materials, leading to inefficiencies and document damage during scanning, particularly when automatic document feeders (ADFs) fail to convey documents correctly.
Innovation Solution
The apparatus includes a processor that detects failed document readings during conveyance-based scanning, stores information about the document, and prompts users to change the reading method from conveyance-based to platen-based scanning to prevent jams, allowing for seamless handling of diverse document types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conveyance-based reading method is used for all documents, then reading speed is improved, but jam occurrence increases
Solution Approach 1:
The system dynamically switches between conveyance-based reading (ADF) and platen-based reading methods based on document characteristics and previous reading results. The reading method is not fixed but adapts to each document, allowing fast conveyance reading for suitable documents while preventing jams by switching to platen reading for problematic documents.
Solution Approach 2:
The system uses feedback from previous reading attempts to determine the reading method for subsequent attempts. When a jam occurs during conveyance-based reading, the system records this information and uses it to switch to platen-based reading for the next attempt, preventing recurrence of the same jam.
2Reliability
If reading method is changed for each document type, then jam prevention is improved, but operation complexity increases
Solution Approach 1:
The system automatically determines and switches between reading methods without requiring manual intervention from the operator. The control unit autonomously selects conveyance-based or platen-based reading based on document characteristics and previous reading results, eliminating the need for operators to manually configure reading methods for different document types.
Solution Approach 2:
The system changes the reading method parameter automatically based on detected document characteristics and previous reading outcomes. This parameter change is driven by the system's own observations rather than external manual input, simplifying operation while maintaining appropriate reading method selection.
3Productivity
If conveyance-based reading is used for folded documents, then processing efficiency is maintained, but document condition deteriorates
Solution Approach 1:
The system takes preliminary action to prevent document damage by detecting folded or problematic documents before they cause jams. When a document with a fold is detected or a jam is anticipated, the system proactively switches to platen-based reading, preventing both jams and document deterioration while maintaining processing efficiency.
Solution Approach 2:
The system prepares alternative reading methods in advance for documents that may cause problems. By having platen-based reading ready as a backup option and switching to it when document issues are detected, the system cushions against potential jams and document damage, ensuring continuous efficient processing.
Data Source
AI summary
An image processing apparatus capable of preventing recurrence of a jam at the time of document reading is provided. The image processing apparatus includes a feeder, a reader, a storage device, and a processor. The processor causes the image processing apparatus to function as: a reading unit configured to cause the reader to read a document by a reading method among a plurality of reading methods including a conveyance-based reading method using the feeder; a storage control unit configured to, in a case where reading of a document with the reader by the conveyance-based reading method has failed, store information on the document in the storage device; and a notification unit configured to, in a case where an instruction to read again the document by the conveyance-based reading method is issued, issue, in accordance with the information, a notification that prompts to change the reading method set for the document.