Secondary Transfer Unit Positioner for Image Forming Apparatus Maintainability
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Solution Overview
Problem
Current image forming apparatuses face challenges in maintaining and positioning the secondary transfer unit relative to the intermediate transfer unit, which affects the efficiency and reliability of image transfer and maintenance processes.
Innovation Solution
The introduction of a positioner with a first member in the intermediate transfer unit and a second member attachable to the secondary transfer unit, along with a contact-and-separation mechanism, allows for precise positioning and easy maintenance by enabling the secondary transfer unit to be detachably integrated with a driver and cover, enhancing accessibility and maintainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the secondary transfer unit is integrated with the intermediate transfer unit, then positioning accuracy is improved, but maintenance complexity increases
Solution Approach 1:
The positioner is divided into two separate members: a first member integrated with the intermediate transfer unit and a second member that can be attached to the secondary transfer unit. This segmentation allows the positioning function to be maintained while enabling independent access and maintenance of each component, thereby reducing maintenance complexity without sacrificing positioning accuracy.
2Ease of repair
If the secondary transfer unit is made detachable, then ease of maintenance is improved, but positioning stability deteriorates
Solution Approach 1:
The second member of the positioner is pre-configured with attachment mechanisms that enable easy connection to the secondary transfer unit. This preliminary preparation ensures that when the secondary transfer unit needs to be attached, the positioning function is automatically re-established through the pre-designed attachment interface, maintaining positioning stability while allowing easy detachment for maintenance.
3Measurement precision
If the positioner components are integrated, then positioning accuracy is improved, but accessibility for maintenance deteriorates
Solution Approach 1:
The positioner is segmented into two members that can be independently accessed. The first member remains integrated with the intermediate transfer unit while the second member can be accessed separately, allowing maintenance personnel to service the positioner components without requiring disassembly of the entire integrated system, thus improving accessibility while maintaining positioning accuracy.
Data Source
AI summary
An image forming apparatus includes an intermediate transfer unit, a secondary transfer unit, and a positioner. The intermediate transfer unit includes an intermediate transferor to bear an image. The secondary transfer unit includes a secondary transfer member to transfer the image borne by the intermediate transferor to a medium. The positioner positions the secondary transfer unit with respect to the intermediate transfer unit. The positioner includes a first member and a second member. The first member is disposed in the intermediate transfer unit. The second member is attachable to and detachable from the secondary transfer unit.