Suction Conveyance Cleaning Before Sheet-Size Changes
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Solution Overview
Problem
Conventional image forming apparatuses require frequent and time-consuming cleaning due to the accumulation of dust and ink mist, which affects image quality and necessitate adjustments based on sheet size, leading to downtime and increased costs.
Innovation Solution
A conveyance section cleaning device with a controller that automatically cleans the recording medium conveyance unit before starting print jobs when the sheet size changes, using a cleaning section to remove foreign substances like paper dust and ink mist.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cleaning frequency is increased to remove accumulated dust and ink mist, then image quality is maintained, but downtime and operational time increase
Solution Approach 1:
The cleaning section performs cleaning actions in advance before printing operations begin. The controller is configured to automatically initiate cleaning when specific conditions are met (such as sheet size changes or predetermined time intervals), ensuring the conveyance unit is clean before actual printing starts, thus preventing image quality degradation without requiring interruptions during printing operations
Solution Approach 2:
The system performs self-maintenance through automatic cleaning operations initiated by the controller based on predetermined conditions. The cleaning section operates autonomously without requiring manual intervention or stopping printing operations, with the system monitoring its own state and initiating cleaning when necessary to maintain performance
2Reliability
If cleaning operations are adjusted for different sheet sizes, then cleaning effectiveness is optimized, but operational complexity and downtime increase
Solution Approach 1:
The cleaning section is designed with adjustable parameters that can be dynamically modified based on sheet size. The controller automatically adapts cleaning conditions (such as cleaning duration, section activation, and intensity) according to the detected sheet size, allowing the same physical cleaning mechanism to effectively handle multiple sheet sizes without manual reconfiguration
Solution Approach 2:
The controller monitors sheet size information and automatically adjusts cleaning operation parameters accordingly. When sheet size changes are detected, the controller receives this feedback and modifies the cleaning section's operation parameters to match the current sheet size, ensuring optimal cleaning effectiveness without requiring manual intervention
3Object-generated harmful factors
If manual cleaning is performed frequently, then foreign substances are removed, but labor costs and downtime increase
Solution Approach 1:
The cleaning section operates automatically without requiring manual intervention. The controller monitors printing conditions and initiates cleaning operations autonomously when foreign substance accumulation is detected or predetermined conditions are met, eliminating the need for manual cleaning operations and associated downtime
Solution Approach 2:
The patent replaces manual mechanical cleaning operations with an automated cleaning section that uses controlled mechanical or chemical means. The cleaning section, activated by the controller, performs the cleaning function that would otherwise require manual intervention, thereby eliminating downtime and labor requirements
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
The solution maintains suction performance, prevents sheet lifting, and reduces downtime by optimizing cleaning frequency based on sheet size and print volume, extending the service life of the cleaning mechanism.
Implementation Method 1
a recording medium conveyance unit that sucks and conveys a recording medium
Implementation Method 2
a cleaning section that cleans the recording medium conveyance unit
Data Source
AI summary
A conveyance section cleaning device includes a recording medium conveyance unit that sucks and conveys a recording medium, a cleaning section that cleans the recording medium conveyance unit, and a controller that controls the cleaning section. If the recording medium is changed to one with a different size, the controller causes the cleaning section to clean the recording medium conveyance unit before printing starts.