Image forming apparatus and control method thereof

By transmitting positive response unnecessary commands to cassettes based on the apparatus's state, the image forming process is optimized, reducing transmission delays and data collisions, thus enhancing processing speed in multi-cassette image forming apparatuses.

JP7707893B2Active Publication Date: 2025-07-15SEIKO EPSON CORP
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Patent Information

Application Number
JP2021206755
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-12-21
Publication Date
2025-07-15
Estimated Expiration
2041-12-21

AI Technical Summary

Technical Problem

In image forming apparatuses with multiple cassettes connected by a bus, the transmission and reception of affirmative responses during the image forming process can be a bottleneck, leading to slowed processing due to the need for sequential communication to avoid data collisions.

Method used

The apparatus includes a control device that transmits a positive response unnecessary command to certain cassettes based on the state of the apparatus, allowing parallel communication and reducing the need for affirmative responses, thereby optimizing the image forming process.

Benefits of technology

This approach speeds up the image forming process by minimizing affirmative response transmissions and receptions, especially when multiple cassettes are connected, ensuring efficient communication and avoiding data collisions.

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Abstract

To provide an image forming device 1 that is configured to perform processing for forming an image at a higher speed.SOLUTION: An image forming device 1 comprises a body control device 100, a body cassette, and an added cassette 21 different from the body cassette, which is connected to a bus type communication line TL which is connected with the body control device 100. In performing processing for forming an image, the main body control device 100 transmits an affirmative response unwanted command for instructing that affirmative response is unwanted to the added cassette 21, in accordance with a state of the image forming device 1 relating to the added cassette 21.SELECTED DRAWING: Figure 3
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Citation Information

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