Image Formation Apparatus Holder Dynamics for Gear Jitter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image formation apparatuses experience a decrease in printing quality due to the temporary release of drive transmission from the drive motor when image formation units are moved between image formation and non-image formation positions, leading to gear jitter and reduced image quality.
Innovation Solution
An image formation apparatus with a rail unit and lift mechanism that maintains the connected state between the drive unit and image carrier, allowing smooth movement between positions without releasing the drive connection, ensuring stable operation and accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the image formation unit is moved from the image formation position to the non-image formation position by releasing the gear connection, then the image formation unit can be repositioned, but the printing quality is lowered due to gear jitter
Solution Approach 1:
The patent applies the Dynamics principle by making the holder movable rather than fixed, allowing it to move together with the image formation unit between image formation and non-image formation positions. This dynamic configuration ensures the drive unit maintains continuous connection to the image carrier throughout the movement, eliminating gear jitter while enabling repositioning operations.
Solution Approach 2:
The holder serves as an intermediary component between the drive unit and the image formation unit. By introducing this intermediate element that moves with the image formation unit, the system maintains continuous drive connection without requiring direct fixed mounting, thus preventing gear jitter during repositioning operations.
2Adaptability or versatility
If the gear connection is released during position switching, then the image formation unit can be moved freely, but gear jitter occurs reducing image quality
Solution Approach 1:
The holder is configured as a dynamic component that moves together with the image formation unit, maintaining continuous drive connection during position transitions. This eliminates gear jitter and ensures consistent image quality across different printing modes while preserving position switching flexibility.
Solution Approach 2:
The drive unit maintains continuous connection to the image carrier through the moving holder throughout the entire position switching process. This continuity of drive action prevents gear jitter and ensures reliable, consistent image quality regardless of position changes, eliminating the need to release and re-engage gear connections.
3Device complexity
If the holder is fixed and drive connection is released during movement, then结构简单(simple structure), but positioning accuracy decreases due to gear reconnection issues
Solution Approach 1:
The holder is designed as a movable component that travels with the image formation unit, maintaining continuous drive connection. This dynamic configuration improves positioning accuracy by eliminating gear reconnection errors while adding minimal structural complexity, as the holder simply follows the image formation unit's movement.
Data Source
AI summary
An image formation apparatus includes: an image formation unit including an image carrier configured to carry a developer image; a drive unit configured to drive the image carrier; a holder provided with the drive unit; a transfer unit located to be opposed to the image carrier and configured to transfer the developer image from the image carrier on a transfer medium; and a switching unit configured to switch a position of the holder between an image formation position, at which the transfer unit transfers the developer image from the image carrier on the transfer medium, and a non-image formation position. The holder is configured to move together with the image formation unit.