18474342. IMAGE READING DEVICE AND CONTROL METHOD FOR IMAGE READING DEVICE simplified abstract (SEIKO EPSON CORPORATION)

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IMAGE READING DEVICE AND CONTROL METHOD FOR IMAGE READING DEVICE

Organization Name

SEIKO EPSON CORPORATION

Inventor(s)

Yuki Minami of OSAKA-SHI KITA-KU (JP)

IMAGE READING DEVICE AND CONTROL METHOD FOR IMAGE READING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18474342 titled 'IMAGE READING DEVICE AND CONTROL METHOD FOR IMAGE READING DEVICE

Simplified Explanation

The abstract describes an image reading device with a DC motor that drives a roller to convey a document for reading. The control unit monitors the power load of the motor and adjusts the conveyance velocity based on the load value.

  • The device includes a DC motor driving a roller for document conveyance.
  • A reading unit reads images from documents conveyed by the roller.
  • The control unit adjusts the conveyance velocity based on the power load value of the DC motor.

Potential Applications

This technology can be applied in:

  • Document scanners
  • Photocopiers
  • Fax machines

Problems Solved

This technology solves the following problems:

  • Prevents motor overload
  • Ensures smooth document conveyance

Benefits

The benefits of this technology include:

  • Improved motor efficiency
  • Reduced wear and tear on the device
  • Consistent image quality

Potential Commercial Applications

The potential commercial applications of this technology include:

  • Office equipment manufacturing
  • Imaging device production

Possible Prior Art

One possible prior art for this technology could be:

  • Document scanners with adjustable conveyance speeds

Unanswered Questions

How does the control unit determine the first threshold value for the power load of the DC motor?

The abstract does not provide details on how the control unit sets the first threshold value for the power load of the DC motor.

What are the specific methods used by the control unit to adjust the conveyance velocity of the document?

The abstract does not specify the exact techniques employed by the control unit to modify the conveyance velocity of the document based on the power load value of the DC motor.


Original Abstract Submitted

An image reading device includes a DC motor, a roller driven by the DC motor, a reading unit configured to read an image from a document conveyed by the roller, and a control unit configured to control driving of the DC motor. The control unit is configured to detect a power load value of the DC motor. The control unit is configured to determine that the power load value of the DC motor exceeds a first threshold value in a state in which the control unit controls the DC motor to convey the document at a first conveyance velocity, and then, control the DC motor to convey the document at a second conveyance velocity lower than the first conveyance velocity.