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Scanner for regulating optimum speed

A scanning speed, scanner technology, applied in the field of scanners, can solve problems such as low speed and adjustment of scanners

Inactive Publication Date: 2006-11-01
LITE ON OPTO TECH (CHANGZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no easy way to adjust the scanning speed of the scanner according to the usage situation, so for all scanners to work properly, the only way to set the scanning speed to the safest low speed

Method used

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  • Scanner for regulating optimum speed
  • Scanner for regulating optimum speed
  • Scanner for regulating optimum speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 2 It is a block diagram of a stepping motor speed control circuit of a scanner 20 with adjustable scanning speed according to Embodiment 1 of the present invention. The scanner 20 includes a temporary register 22, which stores a scanning speed parameter; a frequency adjustment circuit 21, which outputs a drive signal D that can change the frequency m , the drive signal D m According to a predetermined method, the drive signal D corresponding to the corresponding frequency is output corresponding to the different scanning speed parameters m ; and a stepper motor 23 that controls the scanning speed of the scanner, which is coupled to the drive signal D m And its working speed corresponds to the frequency of the driving signal, and the scanning speed of the scanner 20 is correspondingly changed.

[0020] figure 2 It also shows an embodiment of the frequency adjustment circuit 21 in the present invention, which includes a duty cycle adjustment device 211 , a fi...

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PUM

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Abstract

The invention is concerned with the scanner that can debug the best scanning speed, including: a temporary storage device that stores a parameter of the scanning speed; a frequency high-speed line that outputs a driving signal with the changeable frequency, the driving signal corresponds the different parameter of the scanning speed and outputs the driving signal with the corresponding frequency according to a prearrange mode; a step-motor that controls the scanning speed of the scanner, symplectic-joints to the driving signal and the working rotate speed correspond the frequency of the driving signal. The scanner need not be limit and set the scanner speed to be the lowest specification speed, it should be adjusted at the best working speed according to the equipment and the environment of the user. Moreover, the user can get the best scanning quality and adjust the scanning speed any time.

Description

technical field [0001] The invention relates to a scanner, especially a scanner capable of adjusting the best scanning speed. Background technique [0002] The scanning optical heads of commercially available scanners are all driven by stepping motors. The scanning speed specification of each model of scanner is fixed. Carriage Jam is a problem that is prone to occur in scanners. It means that the drive signal is sent to the stepping motor. Because the torque of the stepping motor is not well matched with the environment, the motor does not rotate accordingly, and the scanner is not driven. Phenomenon. In order to prevent out of step, the scanner design has the following considerations: (1) The design life of the scanner is about 8 years and 100,000 times. For best use keep at least 30% of the speed. (2) The error of the supply of electric energy (AC-DC converter) is ±5%, the error of the motor and the propeller of the motor is ±5%, the error of the weight of the load is...

Claims

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Application Information

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IPC IPC(8): H04N1/047H04N1/04
Inventor 张庆崇
Owner LITE ON OPTO TECH (CHANGZHOU) CO LTD