First will be the driver reinstalled, and then the scanner on top of the glass folded down, the glass will be cleaned up, and then inside the optical head (that is, the light-emitting parts) of the dust carefully with alcohol cotton ball hawthorn clean. If it still doesn't work, you'll have to send it in for repair, heh.
Repair scanner method
Scanner is now more advanced instruments, in many places are widely used, but used for a long time, the scanner will appear this and that kind of problem, so do you know the repair scanner method is what? Here is what I have organized for you to repair the scanner is what the relevant content, I hope you useful!
What is the way to repair the scanner
One, the noise emitted when scanning is very loud.
The scanner works with a large vibration, accompanied by a large noise, which is generated by the movement of the mechanical parts of the scanner work, there are two reasons, one of which is closely related to the scanning speed. According to the specific software of each brand machine, set the scanning speed to medium or low speed can solve the problem. The second, related to the working environment, especially in winter. Scanner internal slide bar will become dry, when the work noise will increase. The way to deal with it is very simple, one is to improve the room temperature, the second is to open the scanner, to the slide bar on a few drops of lubricant can be.
Two, scanning intermittently.
Scanner scanning slowed down when scanning, scanning intermittent, seem very strenuous. This may occur because the memory is too small, the scanner first scan a part of the scanner, and then scan the other part. Then go back and connect the two smoothly. The solution has the following two methods: one method is to expand the memory; another method is to adjust or disable the virtual memory in the "Control Panel / System / Performance / Virtual Memory".
Three, the output image is not colorful enough.
If the scanned image is not colorful enough, you can first adjust the monitor's brightness, contrast and gamma value. gamma value is the human eye from the dark tone to the bright tone of a feeling curve.
The higher the gamma value. The higher the gamma value, the richer the perceived level of color. In the scanning application software that comes with the scanner, the gamma value can be adjusted. Of course, for better results, you can also adjust the gamma value in Photoshop and other software, but this is an after-the-fact adjustment. You can adjust the gamma value according to the specific situation of the scanned photo. In the software that comes with the scanner. If it is for general use, the gamma value is usually set to 1.4, if it is used for printing, it is set to 1.8; photos on the web page is set to 2.2. There is also that the scanner should be color-corrected before use, otherwise it is very likely to make the scanned image distortion; in addition, you can also be specific adjustments to the brightness/contrast options in the scanner driver dialog box.
Four, the scanner sweeps out the picture color fuzzy, some color is not correct.
One of the reasons may be that the scanner's flatbed glass is dirty. Please wipe this glass with a clean cloth or paper. Be careful not to wipe it with a liquid such as alcohol, as that will make the scanned image appear rainbow colored.
The second reason is that the resolution is not set properly. First check the scanner to use the resolution is how much. If 300dp) scanner scanning 1200dpi above the image will be more fuzzy. Because 300dpi scanner scanning 4200dpi is equivalent to a little put to the net times larger.
The third reason is that the monitor settings are not correct. Check and set the monitor setting to 16bit color or above.
Scanner selection techniques
One, brand
Two, performance parameters
Describing the scanner's performance parameters are many, the following general user needs to consider when buying technical indicators.
1. Scanning format: scanning format usually A4, A4 extended, A3, A1, A0 and other specifications. Large format scanner price is very high, the general family and office users are recommended to choose A4 format scanner. According to the need for office users can also consider buying A3 format or even larger format scanner.
2. Resolution: resolution reflects the clarity of the scanned image. The higher the resolution of the scanner, the clearer the scanned image. The resolution of the scanner with the number of dots per inch of length DPI (DotPerInch) said. General office users are recommended to purchase a 'scanner with a resolution of 600 x 1200 (horizontal resolution x vertical resolution). Horizontal resolution by the scanner optical system to determine the true resolution, vertical resolution by the scanner drive mechanism of the precision of the decision to purchase the main examination of the horizontal resolution.
3. Color bits: color bits reflect the ability to distinguish the color of the scanned image. The higher the color bits of the scanner, the more colorful the scanned image. Color bits are expressed in binary digits. For example, a 1-bit image can carry 1 bit of binary information per pixel and can only produce two colors, black or white. an 8-bit image can give 8 bits of binary information per pixel and can produce 256 colors. Common scanner color bits are 24-bit, 30-bit, 36-bit and 42-bit and other common standards. It is recommended to purchase a scanner with 30-bit color or 36-bit color. 30-bit scanners have become obsolete and are not recommended.
4. Light-sensitive components: light-sensitive components are the eyes of the scanner, scanning quality and scanner using light-sensitive components related to the common scanner useful light-sensitive components CCD (ChargeCoupledDevice) and CIS (ContactImageSensor). CCD light-sensitive components of the scanner technology is mature. It with the light source, a few mirrors and optical lenses composed of imaging system, imaging on the sensor surface, there is a certain depth of field, can scan the uneven physical objects. CIS is widely used in fax machine sensor, its limit resolution of 600DPI or so, compared with the CCD technology there is a certain gap, only used in low-grade flatbed scanner.
Three, supporting software
Scanner functions are to be realized through the appropriate software, in addition to the driver and scanning interface, almost every scanner will be randomly presented with some image editing software, OCR text recognition software. Different scanning software performance, operation method is different. For users who are not familiar with graphics processing, it is recommended to choose a scanner that offers simple operation and ease of use.
Four, interface
Interface refers to the scanner and computer connection, common SCSI interface, EPP interface and USB interface.
SCSI interface scanner through the SCSI interface card connected to the computer, data transfer speed. The disadvantage is that it is more complicated to install and requires an expansion slot and limited computer resources (interrupt numbers and addresses). If you often scan a large number of graphic files, you should choose the SISC interface scanner, which can save a lot of time.
EPP interface (printer parallel port) can be connected to the scanner, printer and computer with a cable, easy to install. Can be connected to a laptop. But its data transfer speed is slightly slower than the SCSI interface scanner, the scanning speed requirements are not high, the amount of scanning is not large, infrequent use of the scanner users, it is recommended to buy EPP interface scanner.
USB interface scanner speed, support for plug and play, and computer connection is very convenient, but requires your computer support USB interface, the conditions of the user, it is recommended to buy USB.
Scanner maintenance methods
1. To protect the optical components
Scanner in the process of scanning images, through a called photoelectric converter Parts of the analog signal into a digital signal, and then sent to the computer. This photoelectric conversion setup is very delicate, and the position of the optical lens or reflector head has a great impact on the quality of the scan. Therefore, do not alter the position of these optics in the course of your work, and try to avoid vibrating or tilting the scanner. Encountered scanning
The scanner malfunction, do not unauthorized dismantling and repair, must be sent to the manufacturer or the designated repair station to go; In addition in the delivery of the scanner, be sure to the back of the scanner security lock lock, in order to avoid changing the position of the optical accessories.
2. Do a good job of regular cleaning
Scanner can be said to be a more delicate equipment, usually must be careful to do a good job of cleaning. Scanner in the glass plate, as well as reflective lenses, lenses, if the dust or some other impurities, will make the scanner's reflected light weaker, thus affecting the picture scanning quality. For this reason, be sure to use the scanner in a dust-free or dusty environment as little as possible, and after use, be sure to cover the scanner with a dust cover to prevent more dust from intruding. When not in use for a long period of time, it should also be cleaned regularly. To clean, wipe the dust off the case with a soft, fine cloth, then clean it carefully with detergent and water. Then the glass plate is cleaned, because the cleanliness of the panel is directly related to the scanning quality of the image, so when cleaning the panel, first wipe it with glass cleaner, then wipe it dry with a soft dry cloth.
Strong F6 scanner scanned out of the yellow how
Sensitive head problem! There may be soot blocking the photoreceptor holes or where the contact is poor, you open the clean general can solve the problem, and then not is aging!
Scanning out of the picture on the black line is not correctly processed caused by the correct processing method:
1, import the photos need to be processed, the first roughly cropped, as shown in the figure below.
2, open the ruler, pull an auxiliary line, easy to align the photos after processing, as shown below.
3, select the polygonal lasso tool, the photo frame out.
4, will do a good job of the final crop of the photo is good, after which you can carry out subsequent operations, as shown in the figure below.
Ricoh 7502 scanning page with traces
A **** there are two cases. The first, the first test is not a problem with the flatbed photoreceptor, put a flat on the flatbed, close the cover to start copying test, if the results have traces, that is, the scanner's photoreceptor head has a problem if the results do not come out of the traces, please continue to test.
The second, if the flatbed scanning and copying no black line, that must be the feeder is abnormal, put a piece of paper to the feeder, continue to copy test. If the result is a black line, then in the exclusion of the photographic parts of the problem, it must be dirty in the scanning process blocking the light, the use of the feeder scanning scanning is on the left side of this small area, then check whether there is dirt. Generally, there is a kind of dirt here, correction. This dirt with a knife, with the back of the knife direction scraping, scraping with the tip of the knife instead of the effect is not so good.
hplaserjet3050 all-in-one machine copy scanning in the middle of a black line is what happens
A general produce this problem is divided into two categories: one is an obstacle to the light-sensitive, the second is mechanical damage.
Handling method:
Press the copy function of the MFP, scanning can also be, just a little slower scanning speed. The first step is to test whether the plate is light-sensitive problem: put a flat on the plate, close the lid to start copying test. If the results have a black line, that is the scanner's photoreceptor head has a problem; if the flatbed scanning and copying no black line, it must be anomalous feeder. Put a piece of paper to the feeder, continue to copy test if the result is a black line, then in the exclusion is not a photoreceptor parts of the problem, it must be dirty in the scanning process to block the light. Use the feeder scanning scanning is on the left side of the small area, then check whether there is no dirt, if there is clean up quickly on the line.