Image forming apparatus

The image forming apparatus optimizes toner consumption and reduces belt filming by adjusting toner image pattern formation based on operating ratios, addressing inefficiencies in existing technologies.

JP2026106895APending Publication Date: 2026-06-30ETRIA CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
ETRIA CO LTD
Filing Date
2024-12-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing image forming apparatuses face issues with unnecessary toner consumption and belt filming, particularly in full-color image formation modes, due to inefficient control of toner image patterns.

Method used

An image forming apparatus with control means that adjusts toner image pattern formation based on an index value calculated by multiplying the travel distance of the latent image carrier or number of printed sheets by an index value conversion coefficient, which is varied based on the operating ratio during a predetermined period, to optimize toner consumption and reduce belt filming.

Benefits of technology

This approach effectively suppresses unnecessary toner consumption and reduces belt filming by optimizing the frequency and amount of toner input to the cleaning blade, improving image quality and reducing waste.

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Abstract

To provide an image forming apparatus that can suppress unnecessary toner consumption. [Solution] The image forming apparatus has a first mode, the BW mode (monochrome image forming mode), in which a toner image is formed on the intermediate transfer belt 15, which is an image carrier, using an image forming station, which is a Bk color image forming means, and a second mode, the FC mode (full color image forming mode), in which a full color toner image is formed on the intermediate transfer belt 15 using multiple image forming stations. The input amount conversion coefficient, which is an index value conversion coefficient for calculating the toner input amount, which is an index value, by multiplying it by the travel distance of the photosensitive drum, which is a latent image carrier in FC mode, is changed based on the FC rate, which is the operating ratio during a predetermined period in FC mode.
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