Image Forming Apparatus Toner Fixing Heat Control
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Solution Overview
Problem
Existing image forming apparatuses face challenges in achieving optimal fixation of toner images containing flat pigment particles, as they require different heat quantities compared to images without these particles, affecting the metallic luster and uniformity of the final print.
Innovation Solution
The apparatus includes a first image forming section using toner with flat pigment particles and a second section without, with a fixing section applying increased heat for images with flat pigment toner to enhance metallic luster and uniformity by controlling fixing temperature, pressure, and time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the same heat quantity is applied to both toner types, then the fixing process is simple, but the metallic luster and uniformity of images with flat pigment particles cannot be achieved
Solution Approach 1:
The fixing section dynamically adjusts the heat quantity applied to the toner image based on the type of toner used. When flat pigment particles are detected in the toner, the system increases the heat quantity to ensure proper fixation and metallic luster. This dynamic adjustment resolves the contradiction by adapting the fixing process to different toner compositions rather than using a fixed simple process.
Solution Approach 2:
The invention changes the parameter of heat quantity in the fixing process based on toner composition. By detecting whether flat pigment particles are present and adjusting the heat quantity accordingly, the system achieves optimal fixation quality for different toner types. This parameter change allows the same fixing section to handle multiple toner types effectively.
2Manufacturing precision
If increased heat is applied to fix toner with flat pigment particles, then metallic luster and uniformity are improved, but energy consumption increases
Solution Approach 1:
The system uses feedback from toner composition detection to determine the appropriate heat quantity for fixation. By detecting whether flat pigment particles are present in the toner and adjusting heat quantity accordingly, the system ensures optimal pigment distribution uniformity and metallic luster only when necessary, thereby avoiding unnecessary energy consumption for toners that do not require enhanced heat treatment.
Solution Approach 2:
The invention dynamically changes the heat quantity parameter based on toner composition. When flat pigment particles are detected, the heat quantity is increased to achieve proper fixation and metallic luster. When such particles are not present, standard heat quantity is used. This conditional parameter change optimizes both fixation quality and energy consumption by applying extra heat only when the toner composition requires it.
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 approach improves the flop index value, ensuring a more pronounced metallic luster and even pigment distribution, while maintaining appropriate color reproduction and gloss levels across different paper types.
Implementation Method 1
a fixing section that fixes an image formed on a recording medium to the recording medium using heat
Data Source
AI summary
An image forming apparatus includes: a first image forming section that uses a toner containing flat pigment particles; a second image forming section that uses a toner not containing the flat pigment particles; and a fixing section that fixes an image formed on a recording medium to the recording medium using heat. The quantity of heat that the fixing section applies to the image is increased in the case where the image formed on the recording medium using the toner containing the flat pigment particles is to be fixed compared to a case where the image formed on the recording medium using the toner not containing the flat pigment particles is to be fixed.