I bought a barcode scanner, but I dont know why the failure?Barcode scanning maintenance and maintenance can extend the life of the barcode scanner!The following editors will take you one by one!
Barcode scanner fault treatment
1. Problem description: LED is not bright, no bee sounds, no laser.
Possible reasons: The power supply of the scanning gun is not connected, the scanning gun is not powered on or the data cable interface has been loosened and the contact is poor.
Solution: Check the scanned gun wire to ensure that the computer is powered normally, and the data cable is re -connected to the scanner once.
2. Problem description: Scanner scanning, bee is normal, and unprecedented transmission.
Possible reasons: Incorrectly setting the scan gun; the wire is bad
Solution: See the instructions to ensure that the corresponding settings corresponding to the corresponding data cable are correct.
3. Problem description: After receiving the port, read the code unlicensed transmission.
Possible reasons: It is not set to be set to a serial mode or a communication protocol error.
Solution: Scan the serial port mode to set it to the serial port mode, and reset it to the correct communication protocol.
4. Problem description: The scanning gun reads normally, but there is no bee.
Possible reasons: Set up as quiet
Solution: Scan the bee tweezer "Open" settings.
Barcode scanner maintenance and maintenance
1. Clean the shell
We all have such experience: When wet the wet cloth directly wipe the surface of the dust, we will make the surface very expensive.Therefore, it is best to use a dry and soft cotton cloth to remove the floating ash covered on the shell of the barcode scanner first, and then wipe it with a wet cloth again, so that the dust can be "eliminated".If there are some other stains on the housing at this time, we can dip some laundry powder on the wet cloth to remove it.After removing it, wipe it with a clean place with a clean wet cloth several times.
When cleaning the shell, we should be careful not to encounter the glass tablet of the barcode scanner. At the same time, we should also dry the wet cloth as much as possible to avoid dirty water flowing out of dirty water during the wiping process.
2. Cleaning glass tablet
After the housing is basically dry, open the barcode scanner to cover, use the blow balloon to blow the plane glass a few times, and "run away" the dust attached to the surface.For stains that cannot be blown away, use a glass cleaner for cleaning, and then wipe it clean with a soft dried cotton cloth.Because the glass panel is clean or not, it is directly related to the scanning quality of the image, so we must be careful when cleaning the panel.
3. Clean internal optical components
Next, we can open the plane glass of the barcode scanner to clean the optical component inside the barcode scanner.Generally speaking, the shell and base of the barcode scanner are stuck together, so it can be easily removed without a screw knife.In optical components, we must focus on cleaning the barcode scanner fluorescence tube: dipped in distilled water with an abandoned cotton ball, and then squeeze the water on the cotton ball with energy (to ensure that there will be no water flowing out during the wiping process), gently gentlyWipe back and forth on the lamp.Because the optical components are more precise, the movements should be light and kept smooth when they clean these devices.
4. Cleaning the transmission device
The sliding rod on the barcode scanner transmission mechanism is another focus of our attention to the situation.Generally, when the barcode scanner has noise during the work, it is likely to be the problem of sliding rod.At this time, we can find some lubricating oil and apply it evenly on the sliding rod to increase the lubrication of the mechanical in the transmission mechanism.
After the above cleaning work is completed, the barcode scanner is installed and debugged in the correct order, and the work of cleaning the barcode scanner is completed.
The maintenance of the barcode scanner is relatively simple. The main attention is to pay attention to the following points:
1. Anti -drop.The internal structure of the barcode scanner is composed of decoder components and motherboards. These components are relatively precise components, so when used, you should try to avoid falling from the high place, especially the glass component of the barcode scanner. Once it breaks, it will break, and once it breaks, it will break.The dust will enter the barcode scanner.
2. Anti -force pull.The barcode scanner is combined by a wire and a barcode gun itself. It often pulls the wires often, which is easy to loosen the connection at the connection.
3. Frequent cleaning glass shields.
Classification of barcode scanners
Commercial barcode scanners are commonly used: CCD scanner, laser handheld scanner and full -angle laser scanner.
1. The CCD scanner uses the principle of optoelectronics (CCD) to imagine the barcode printing pattern, and then decodes.
Its advantage is: no rotation, motor, long service life; cheap price.
When choosing a CCD scanner, the most important thing is two parameters:
A, depth of field: Since the imaging principle of CCD is similar to the camera, if you want to increase the depth of field, you should increase the lens accordingly, so that the CCD is too large and it is inconvenient to operate.Excellent CCD should be known without the barcode, and the volume should be moderate, and the operation is comfortable.
B. Resolution: If you want to improve the CCD resolution, you must increase the unit element of the optical component at the imaging.Low -priced CCDs are generally 5 portrait pixels (Pixel). Reading EAN, UPC and other commercial codes are sufficient. It will be more difficult for other code -based reading.The mid -range CCD is mostly 1024pixel, and some even reach 2048pixe1. It can distinguish the barcode with the narrowest unit element of 0.1mm.
2. Laser handheld scanner is a single -line scanner using laser diode as a light source. It mainly has two types: rotary mirror and trembling mirror
The representative brand of the rotary mirror is SP400. It uses a high -speed motor to drive a prism group to rotate, making the single -point laser emitted by the diode into a front line.
The production cost of trembling mirror type is lower than the rotary mirror, but the laser gun of this principle is not easy to increase the scanning speed, generally 33 times / s.Individual models, such as Poticon, can reach 100 times per second, and its representative brands are Symbol, PSC and Poticon.
When choosing a laser scanner, the most important thing is to pay attention to scanning speed and resolution, and depth of field is not a key factor.Because when the scene is deeply increased, the resolution will be greatly reduced.Excellent handheld laser scanners should be high scanning speeds, high resolution within the fixed depth of field.
3. The full -angle barcode scanner is a laser refractive refractive refraction or multiple scanned barcode scanner emitted by the laser diode through the optical system. The main purpose is to reduce the labor of the barcode when entering the barcode data.Its scan line flower spots distribution:
A. There are multiple parallel lines in one direction;
B. There are multiple scanning lines at a certain point;
C. The interpretation probability of each point within a certain space is consistent.
The full -angle scanner that meets the above three points must be the first choice for merchants.