Integrated Cover Mechanism for Image Forming Unit Access
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Solution Overview
Problem
The existing image forming apparatus requires users to perform cumbersome operations by lifting the top cover and opening the front cover to draw the image forming unit from the main casing, making it difficult to easily access and maintain the cartridges and exposure members.
Innovation Solution
The design includes a cover that moves from a first position to a second position, allowing the image forming unit to be easily pulled out by supporting the exposure members and allowing the cartridge support member to move from an inside to an outside position, with a single operation of opening the cover that supports the LED units, preventing interference and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the top cover is lifted upward and the front cover is opened to draw the image forming unit, then the image forming unit can be accessed, but the operation becomes cumbersome and complex
Solution Approach 1:
The patent merges the top cover and front cover into a single integrated cover structure. The cover includes a first wall that covers the top side of the image forming unit and a second wall that covers the downstream side, allowing both covers to function as one unified component that opens in a single operation, thereby simplifying the user interface while maintaining protective coverage.
Solution Approach 2:
The integrated cover serves multiple functions simultaneously: it acts as both the top cover and front cover, provides protection for both the top and downstream sides of the image forming unit, and enables single-operation access during maintenance. This multi-functionality eliminates the need for separate cover operations.
2Productivity
If the exposure member is disposed in proximity to the photosensitive drum, then the image forming function is achieved, but the exposure member interferes with the image forming unit when it is drawn from the main casing
Solution Approach 1:
The patent extracts the exposure member from the image forming unit by positioning it on the integrated cover rather than on the image forming unit itself. This separation allows the exposure member to be accessed and removed independently when maintenance is needed, eliminating the interference problem while maintaining close proximity for functional operation.
Solution Approach 2:
The integrated cover acts as an intermediary structure that holds the exposure member separately from the image forming unit. This intermediary positioning allows the exposure member to be close enough for effective image formation but distinct enough to be easily accessed and removed during maintenance operations.
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 solution simplifies the process of drawing the image forming unit from the main casing by allowing a single operation to open the cover, reducing the risk of interference and damage, and enabling easier access to the cartridges and exposure members for maintenance and replacement.
Implementation Method 1
Each exposure member includes a plurality of light emitting elements for exposing the corresponding photosensitive drum to light
Data Source
AI summary
An image forming apparatus includes: an image forming unit; exposure members; and a cover. The image forming unit includes a cartridge support member for supporting cartridges. The cartridge support member is movable relative to a main casing in a moving direction from an inside position inside the main casing to an outside position outside the main casing. The cover is movable from a first position to a second position such that the cover allows movement of the image forming unit from the inside position to the outside position. The cover includes a first wall and a second wall integral with the first wall. The first wall covers a top side of the image forming unit at the inside position when the cover is at the first position and supports the plurality of exposure members. The second wall covers a downstream side in the moving direction of the image forming unit at the inside position when the cover is at the first position.