Weak current College】 【scanner common application methods and failure analysis (2).

III. how to clean the scanner

We all know that the scanner is a very sophisticated device, there are a lot of optical devices, if dirty certainly affect the scanning results. But we can not only use in dust-free environment, this is too unrealistic. Since do they happen, so only after much more effort, so cleaning is certainly on a regular basis.

Good, clean-up began. First of all we have to get a piece of cloth, the scanner casing (excluding glass plate) wipe again, its purpose is to remove the grey float on the surface, preventing water wipe will shell out more flowers. Then use a wet cloth to wipe the case carefully again, note the Chief not too wet, wipe the process it is best not to have the water out. In some scale very thick, wet cloth soaked in some laundry detergent, and then rub it several times, finally don't forget again with a clean wet cloth to place a laundry detergent and then wipe it again.

Next turn on the scanner, and before that it's best to leave it behind the safety lock locked. If you found it of dust compared to thick, can be used to blow the balloon blow up, then you can blow the dust off a fall, do not forget in this period the scanner cover up, or just do become just plain dumb. Take advantage of this effort, you can buy a bottle of distilled water, in the supermarket of the line, and finally found a small mission in cotton wool.

In the scanner's optical components found its glow tube, reflector, the cotton wool with distilled water wet, dry and wet degree to get squeezed when the water is good. Then carefully in luminescent tubes and mirror Polish, note, be sure to light, do not change the position of the optical accessories.

If you find that the scanner is using some noise in the process of moving, that's probably the sliders to the lack of oil or above scale, you can find some lube in on some of the sliders (see Figure 2) to increase its level of lubrication, noise problems can be solved.

All clean finished inside the machine installed, then use a clean, damp cloth to wipe the scanner glass is clean, then you will see a new scanner unfolds before your eyes.

Wonderful experience, scanner

The scanner when digital camera use

We all know, scanners and digital cameras are optoelectronic devices (normally a CCD or CMOS) to get the graphic image information in the form of, just different. Scanner is a strip of optoelectronic devices, it identifies the graphics process is moving. Optoelectronic devices from one end of the movement to the graphic on the other side, to complete the scan; and digital cameras opto-electronic devices is a matrix-like, it is instantly working process. Sometimes, we do not need to run around with a camera, if you need to shoot a scene, or you need a section of an illustration, you only have a scanner, you may be made into a photo, and then to develop photographs, and other photo clean now and then scan a picture after several times of trouble after finally passed into the computer, but the effect can be imagined. We can make a transformation of the scanner, turned into a "digital camera" soil.

Scanner requirements being scanned object is the plane, especially recently with CMOS for photosensitive device scanner. We can imitate the principle, in the digital camera scanner of the above plus a convex lens. To enable features at the scanner platform imaging, and then open the scanner like sweeping a plain picture so you can finish the work of the "shooting".

If you frequently need to shoot some scenes or still life, using the scanner. This also eliminates a costly investment in a digital camera.



If you happen to have used the camera (preferably disposable camera), you can remove it from the lens, as "native digital camera" lens. Since the scanner is very slow, you might in focusing a lot of effort. So the best selection of short focal length of lens focal point and click, it will not impact is very large. Of course you have to put such a unit, you can only do as ceiling (specific practices see Figure 1).

Then turn the scanner on the remaining part of the platform with black plaques, a "DIY digital camera" in this connection was born.

In fact, the use is simple: shoot you need scanner side lap as the camera angle as rotate right, so that the "camera" lens "is on you to" shoot "scenes. If the scanner's alive long enough, you can also adjust the scanner and the distance between the scene in order to achieve the best results "photography".

General scanner when a film scanner to use

With ordinary scanners cannot scan transparent film that must be used with the scanner through sweep adapter. While this feature of the scanner price is very high.

After having thoroughly scan features, one is able to scan the transparencies, and second, you can directly scan negatives. In fact, we only need to do some common scanner, you can achieve this effect.

Scanning ordinary pictures, the scanner's lamp will light projected onto the surface of the picture, but when the lights through sweep from the film back projection. In fact, we have to change the principle is the scanner's internal light source is closed, and sweep the film back add a light source. Which the scanner internal light source close is very important step. If your level is not high, you can find a bit to understand electronic friend for help. It is best to do a switch on the chassis, this does not affect normal use.

Of course, in the remainder of the scanner platform with black paper covered to prevent condensation. As for new light sources, the most common fluorescent lights available. Light source position not too close from the scanner, it is best to 10cm. In fact, many high-end scanners equipped with projection scan adapter and the methods that are described in the installation of the same principle (see Figure 2).

There is also aA simpler method, but not successful, do not make any changes, the scanner directly to the question scanning film into the scanner, place a film back almost a mirror of large size. And then the usual method of scanning. This method is very high on the scanner, the scanner may have no application.