Image Forming Apparatus Automatic Sheet Detection

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Solution Overview

Problem

Existing image forming apparatuses require users to manually select sheet types and sizes for printing, leading to inefficiencies and increased user operations, as automation of sheet size selection and unnecessary screen displays are not adequately addressed.

Innovation Solution

An image forming apparatus with multiple feeding units, a detecting unit to identify mounted sheets, and a display control unit that automatically displays relevant preparation screens based on sheet presence, reducing unnecessary screen interactions and streamlining the printing process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple feeding ports are provided to support various sheet types, then the adaptability of the image forming apparatus is improved, but the complexity of user operation increases due to the need to manually select feeding ports

Engineering Contradiction:
Improvesheet type compatibilityVSAvoidfeeding port selection
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically detects which feeding ports have sheets mounted and autonomously selects the appropriate feeding port based on the printing requirements, eliminating the need for manual user selection and reducing operational complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The detecting unit continuously monitors the sheet mounting status of each feeding unit and provides real-time feedback to the control unit, enabling dynamic and automatic feeding port selection based on current system state

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the screen for setting printing conditions is always displayed, then the user can access all printing options, but the user operation time increases due to unnecessary screen interactions

Engineering Contradiction:
Improveprinting option accessibilityVSAvoidscreen interaction time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system extracts and displays only the necessary printing condition settings screen based on the detected sheet mounting status, removing unnecessary screens and options from the user interface to reduce interaction time while maintaining access to all options when needed

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The display control unit dynamically adjusts the user interface by showing different screens or options based on the real-time sheet mounting status detected by the detecting unit, optimizing the interaction flow for each specific situation

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If manual selection of sheet size and type is required, then the user has full control over printing parameters, but the productivity decreases due to increased user operations

Engineering Contradiction:
Improveprinting parameter controlVSAvoidprinting process efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system automatically determines and configures the appropriate sheet size and type based on the detected mounting status of feeding units, performing the selection task autonomously without requiring manual user input, thus maintaining control while improving efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The detecting unit performs preliminary detection of sheet mounting status before the printing process begins, allowing the system to pre-configure the appropriate printing parameters and feeding port selection, reducing the need for user operations during the printing process

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240286855A1Image forming apparatus, display control method, and computer readable storage medium
Publication Date: 2024.08.29 CANON KK
  • US20240286855A1 patent drawing
  • US20240286855A1 patent drawing
  • US20240286855A1 patent drawing

AI summary

There are included: a plurality of feeding units configured to correspond to respective types of sheets; a detecting unit configured to detect whether or not a sheet is mounted in each of the feeding units; and a display control unit configured to display on a display part a preparation screen for printing on a type of sheet corresponding to one of the feeding units in a case where the type of sheet is mounted in the one of the feeding units whereas no sheet is mounted in any of other feeding units at the time a function including a printing function is selected.