Optical Scanner Connector Positioning for FFC Access
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Solution Overview
Problem
Conventional electrophotographic image forming apparatuses require a lengthy process to replace optical scanning devices due to the need for disconnection and reconnection of FFCs, which can lead to increased costs and susceptibility to noise, and pose challenges in ensuring proper connection due to limited access and visibility.
Innovation Solution
The optical scanning apparatus features a controller substrate with a projected portion and a connector for the FFC, allowing for parallel insertion and removal, providing sufficient space for easy access and visual confirmation of the connection, thus simplifying the replacement process and reducing the need for additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the FFC connector is positioned on the laser chip within the optical scanning device, then the device structure is compact, but the connector becomes inaccessible for manual connection and disconnection operations
Solution Approach 1:
The FFC connector is extended from the laser chip along the Z-axis (thickness direction) to project outward from the optical scanning device housing. This dimensional extension transforms the connector from an internal, inaccessible component to an externally accessible one, allowing manual connection and disconnection operations while preserving the compact internal structure of the optical scanning device.
2Ease of operation
If multiple covers and electrical component boards are removed to access the optical scanning device, then complete access is achieved, but the replacement process becomes time-consuming and complex
Solution Approach 1:
The FFC connector function is extracted from the internal laser chip structure and positioned on the external surface of the optical scanning device housing. This extraction allows the connector to be accessed and operated independently without requiring removal of protective covers or disassembly of electrical component boards, significantly reducing replacement time and operational complexity.
3Volume of moving object
If the FFC connector is positioned in a location with limited space, then the device structure is compact, but visual confirmation of proper connection becomes difficult
Solution Approach 1:
The connector positioning along the Z-axis extends it to a location where sufficient operational space is available, enabling visual confirmation of FFC connection status. This dimensional repositioning resolves the conflict between compact device volume and ease of detection by placing the connector in a spatial zone that provides both accessibility and visibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This arrangement significantly reduces the time and complexity of replacing optical scanning devices, prevents operational errors, and lowers the overall cost by eliminating the need for additional components like intermediary junction boards.
Implementation Method 1
emits multiple beams of laser light from its light source
Implementation Method 2
deflects the beams of laser light in a manner to scan the peripheral surface of a corresponding photosensitive drum
Implementation Method 3
focusing each beam of laser light on the peripheral surface of the photosensitive drum, with the use of an f-θ lens
Data Source
AI summary
An optical scanning apparatus includes a light source for emitting a beam in accordance with image information; a controller substrate for controlling the light source; a deflector for scanningly deflecting the beam; an optical device for directing the deflected beam onto a member-to-be-scanned; a casing supporting the substrate, the deflector and the optical device, wherein the substrate is provided with a projected portion projecting relative to the casing; and a connector for removably connecting a cable for supplying a signal to the light source, the connector being provided on a side of the projected portion where the controller substrate is supported by the casing. The cable is insertable and removable relative to the connector in a direction parallel with a surface of the projected portion provided with the connector.