Sheet Transport Swing Member Single Sensor Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sheet feeding apparatuses require multiple dedicated detecting units to detect sheet transportation and cassette presence, leading to increased complexity, size, and cost due to the large number of parts and assembly processes.
Innovation Solution
A sheet transporting device with a swing member and a single detecting unit that changes states to indicate the presence or absence of the sheet feeding cassette, allowing the control unit to determine the cassette's state based on the detecting unit's signals within a predetermined time interval, reducing the number of parts and assembly processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple dedicated detecting units are used to detect sheet transportation and cassette presence, then detection accuracy is improved, but device complexity and number of parts increase
Solution Approach 1:
The patent combines multiple detection functions into a single detecting unit. The swing member integrates both the sheet transportation detection function and the cassette presence detection function, eliminating the need for separate dedicated detecting units for each function.
Solution Approach 2:
The swing member serves multiple functions: it detects both sheet transportation status and cassette presence/absence. This multi-functional design allows one detecting unit to replace what would traditionally require multiple separate detecting units.
2Reliability
If multiple dedicated detecting units are used, then detection reliability is improved, but assembling processes become complicated
Solution Approach 1:
By merging the detection functions into a single swing member, the number of components requiring assembly is reduced. This simplifies the assembling processes while maintaining reliable detection through the integrated design.
3Measurement precision
If multiple detecting units are used, then detection coverage is improved, but apparatus size increases
Solution Approach 1:
The patent merges multiple detection functions into a single swing member and detecting unit configuration, reducing the space required for multiple separate detecting units while maintaining comprehensive detection coverage for both sheet transportation and cassette presence.
Data Source
AI summary
A sheet transporting device includes: a sheet feeding cassette; a transporting unit that transports the sheet from the sheet feeding cassette; a swing member including a swing position, which changes among a first state in which the sheet feeding cassette is separated, a second state in which the sheet feeding cassette is mounted and the sheet is not transported, and a third state in which the sheet is transported; a detecting unit that detects whether the swing position of the swing member is in the second state; and a control unit, wherein when the detecting unit detects that the swing position of the swing member is in a state other than the second state within a predetermined time interval from the time that the transporting unit extracts the sheet from the sheet feeding cassette, the control unit determines that the swing position is in the third state.