Image Forming Apparatus With Single-Side Drawer Access
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Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently accommodating and maintaining components like cartridges and transfer units, requiring larger installation spaces due to complex movement directions and overlapping components, which hinders space efficiency and user accessibility.
Innovation Solution
The apparatus is designed with a drawer unit containing a first cartridge and a support member, and a transfer device with a belt, allowing for movement directions that intersect with the rotation axes of photosensitive drums, enabling separate and efficient access to the fixing device, tray, and transfer unit from a single end of the apparatus, reducing the need for multiple access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tray and transfer unit are moved from inside to outside the apparatus through multiple openings, then the components can be accessed, but the installation space required increases due to complex movement directions and overlapping components
Solution Approach 1:
The apparatus is divided into distinct functional modules: a tray unit for holding cartridges and a transfer unit for transferring toner, each capable of independent movement. This segmentation allows each component to be accessed separately through a unified opening, reducing the need for multiple access points and minimizing the overall installation space required.
Solution Approach 2:
The transfer unit is designed to move in a direction that intersects with the rotation axis of the photosensitive drum, transitioning from a conventional parallel movement to an intersecting trajectory. This dimensional change enables the transfer unit to be accessed from the same opening as the tray, eliminating the need for separate access openings and reducing the apparatus footprint.
2Device complexity
If the fixing device is disposed at one end side of the apparatus main body, then the structure is simplified, but the movement paths of drawer unit and transfer device may overlap causing interference
Solution Approach 1:
The drawer unit and transfer device are designed with dynamic movement capabilities, allowing them to move independently along predetermined paths. The drawer unit moves from the first end toward the second end, while the transfer unit moves from the second end toward the first end, with their movement directions intersecting at the photosensitive drum rotation axis. This dynamic design enables both units to operate without interference despite the fixing device being positioned at one end.
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 configuration allows for compact installation and easy maintenance, enabling users to perform operations like cartridge replacement and jam clearing from a single side, optimizing space usage and improving user accessibility.
Implementation Method 1
a fixing device configured to heat the recording material
Data Source
AI summary
An image forming apparatus to form an image on a recording material includes an apparatus main body having a first end provided with an opening and having a second end, a fixing device to heat the recording material, an opening and closing member, a drawer unit having a first photosensitive drum, and a transfer device. When being moved from a first inner position inside the apparatus main body to a first outer position outside the apparatus main body through the main body opening, the drawer unit is to be moved in a moving direction intersecting with a rotation axis of the first photosensitive drum, and is to be moved away from the second end. When being moved from a second inner position inside the apparatus main body to a second outer position outside the apparatus main body, the transfer device is moved away from the second end.