Recording Device Belt Meandering Detection Marks
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Solution Overview
Problem
Current recording devices, such as inkjet printers and copiers, face challenges in detecting the meandering amount and reference position of transport belts with complex configurations, leading to increased manufacturing costs and a need for simpler solutions that can also apply to intermediate transfer belts in color copiers.
Innovation Solution
A recording device belt with a simple configuration featuring marks for belt position detection, where each mark has a first specific portion with varying dimensions in the transport direction based on intersecting direction positions and a second specific portion with constant dimensions, allowing for the detection of meandering amounts and reference positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a transport belt with a complicated configuration is used to detect both meandering amount and reference position, then detection capability is improved, but manufacturing cost is increased
Solution Approach 1:
The patent merges two separate detection functions (meandering detection and reference position detection) into a single integrated mark structure. The mark contains both a first specific portion for meandering detection and a second specific portion for reference position detection, eliminating the need for separate detection systems and reducing manufacturing cost while maintaining full detection capability
Solution Approach 2:
The mark is designed with multi-functionality, serving dual purposes: the first specific portion detects meandering amount while the second specific portion detects reference position. This universal design allows a single component to perform multiple detection functions, avoiding the need for complicated separate configurations
2Ease of manufacture
If a simple configuration transport belt is used, then manufacturing cost is reduced, but detection capability for meandering amount and reference position is lost
Solution Approach 1:
The patent combines multiple detection functions into a single integrated mark structure, allowing a simple belt configuration to achieve sophisticated detection capabilities. The merged design maintains full functionality while minimizing structural complexity
Solution Approach 2:
The mark incorporates local quality variations through its two specific portions with different dimensional characteristics. The first specific portion has dimensions that vary based on position in the intersecting direction for meandering detection, while the second specific portion has constant dimensions for reference position detection, enabling precise detection functions within a simple overall structure
3Measurement precision
If separate detection systems are used for meandering correction and paper placement, then detection accuracy is improved, but device complexity is increased
Solution Approach 1:
The patent merges separate detection systems into a unified mark structure that simultaneously provides meandering detection and reference position detection. This integration maintains detection accuracy for both functions while significantly reducing system complexity by eliminating redundant components
Solution Approach 2:
The detection mark is designed with universal functionality to serve multiple detection purposes. The first specific portion handles meandering detection while the second specific portion handles reference position detection, allowing a single system to perform multiple accurate detection functions without increasing complexity
Data Source
AI summary
A belt suitable for detection of a meandering amount of the belt and detection of a reference position for one round of the belt is realized with a simple configuration. The recording device belt has a plurality of marks for belt position detection disposed in a transport direction of the belt. Each of the plurality of marks has: a first specific portion whose dimension in the transport direction differs depending on a position in an intersecting direction that intersects with the transport direction; and a second specific portion whose dimension in the transport direction is constant regardless of the position in the intersecting direction. The plurality of marks include a reference mark whose dimension in the transport direction of the second specific portion is different from that of the other marks in the plurality of marks.