Image forming apparatus, method for abnormality determination, and program
The image forming apparatus distinguishes between temporary condensation and permanent foreign matter on temperature sensors using threshold-based temperature changes, reducing unnecessary service calls and optimizing maintenance.
JP2025124114APending Publication Date: 2025-08-26KONICA MINOLTA INC
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Patent Information
- Application Number
- JP2024019940
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-14
- Publication Date
- 2025-08-26
AI Technical Summary
Technical Problem
Conventional image forming apparatuses cannot distinguish between temporary condensation and permanent foreign matter adherence on temperature detection sensors, leading to unnecessary service technician dispatches.
Method used
An image forming apparatus with an abnormality determination unit that differentiates between first (permanent) and second (temporary) abnormal states based on the rate of change in detected temperature, using threshold values to determine the need for sensor replacement or job suspension.
Benefits of technology
Reduces unnecessary service calls by accurately identifying temporary condensation versus permanent foreign matter adherence, thereby optimizing maintenance and reducing downtime.
✦ Generated by Eureka AI based on patent content.
Abstract
To reduce service call opportunities due to abnormality of a temperature detection sensor.SOLUTION: An image forming apparatus 1 includes: a heating unit 41 for fixing an image formed on a sheet 9 to the sheet 9; and a temperature detection sensor 50 for detecting the surface temperature of the heating unit 41. The image forming apparatus 1 further includes an abnormality determination unit 64 for determining abnormality of the temperature detection sensor 50 on the basis of the detected temperature by the temperature detection sensor 50. The abnormality determination unit 64 determines, on the basis of the detected temperature of the temperature detection sensor 50, whether one of a first abnormal state and a second abnormal state different from the first abnormal state has occurred in the temperature detection sensor 50.SELECTED DRAWING: Figure 6
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