Projector-Based Preview for Image Forming Apparatus
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Solution Overview
Problem
Image forming apparatuses face challenges in accurately displaying preview images due to size or shape restrictions on the display device, making it difficult to provide an accurate preview of the image to be printed.
Innovation Solution
The apparatus includes a projector that projects the image onto a predetermined area outside the device, a processor to control the projection, and an interface to receive user operations, allowing for full-size preview display and intuitive operation through touch inputs like drag, pinch, and swipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a display device is used to show preview images, then the preview can be displayed on a fixed screen, but the size and shape of the preview are restricted and cannot accurately represent the actual print output
Solution Approach 1:
The patent transitions from a two-dimensional fixed display screen to a three-dimensional projection space. By projecting the preview image onto a surface external to the device, the system gains flexibility in display size and shape while maintaining accurate representation of the print output. The projection can be scaled to match various paper sizes and layouts without being constrained by screen dimensions.
2Area of stationary object
If a small display screen is used, then the device remains compact, but the preview image cannot show the full layout and details of the print output
Solution Approach 1:
The patent introduces a projection system as an intermediary between the internal image processing components and the user. Instead of enlarging the display screen, the system uses a projector to cast the preview image onto an external surface, effectively extending the display area without increasing the physical footprint of the device.
3Ease of operation
If touch operations like drag, pinch, and swipe are implemented on the projection, then user interaction becomes more intuitive, but the system requires sophisticated gesture recognition capabilities
Solution Approach 1:
The projection surface itself serves as the interaction interface. Users can directly touch or gesture over the projected image to perform operations like dragging, pinching, and swiping. The system detects these gestures and translates them into appropriate commands, allowing the projection to be both the display medium and the control interface, thereby simplifying the overall control architecture.
Data Source
AI summary
An image forming apparatus according to an embodiment includes a projector that projects an image onto a predetermined projection area outside of the image forming apparatus, an interface, a printer, and a processor. The printer prints an image on an image recording medium based on image data acquired the image acquired through the interface. The processor controls the projector to display the image to be printed on the projection area.