Scanner
Scanner is a device
which takes images from photographic print, poster, magazine and pages for
computer editing. Scanner gives you a permission to take a printer image
document and changes them into a digital file. You can connect a scanner via
Bluetooth, firewire, parallel and SCSI. Scanner also has many types, with that
they can scan both colored and black and white. CLICK HERE TO KNOW What is a Printer Its Type and Working ...
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| Types Uses and Working of a Scanner |
Most scanners come with
special software like Adobe’s Photoshop product. You can change some scanning
setting using this software. Scanner connects with computer and need SCSI to
connect. An application named Photoshop used to read images.
Types of Scanner :
Now every office or
other working area uses scanner to print documents –
· Flatbed
Scanner : The other name of flatbed scanner is desktop scanner, these
are the most used scanner and they have 3 types also.
- Entry
Level Flatbed Scanner
- Mid
Level Flatbed Scanner
- High
End Flatbed Scanner
· Sheet
– Fed Scanner : These scanner looks like a flatbed scanner but when
the document starts working then they loses their speed. Sheet Fed Scanner
looks like a portable printer.
· Handheld
Scanner : Handheld Scanner works as flatbed scanner but they uses a
belt to move the document, with that these scanner needs a rough area to
forward the document. That’s why they don’t give good quality but they
immediately scan the text as well.
· Drum
Scanner : The publishing companies uses the these scanner in companies,
these scanners scan every detail clearly and for this they uses PMT (
Photomultiplier Tune ) technique. Drum scanner takes the document on the upper
glass sheet, where the sensors situate. These sensors divide the beam of light
and send them to colored photomultiplier tube. Here light changes into electric
signals and the image comes out of the scanner. CLICK HERE TO KNOW What is a Keyboard Its Functioning and Working ...
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| Benefits and Harms of Scanner |
Use of Scanner in
Hospitals :
Every hospitals uses the
scanner for CT ( Computed Tomography ) scan, which works like X – Ray machine.
Hospitals use 2 types of scanning machine –
§ Conventional
CT Scan : These scanners works slide by slide, with that scan stops
after every slide and goes to lower slide. For this patients need to stop their
breath for a while so scan may not leave their slide during movement.
§ Spiral /
Helical CT Scan : These scanners scans continuously, which looks like
a spiral. Their speed is very fast and the quality of image is also good.
Benefits of Scanner :
- Flatbed
Scanners work with accuracy and gives good quality.
- The
entire scanned document used as an electronic document.
- You
can use any scanned images as a graphic application.
- If
you are using a good scanner then you can change the size of your document as
well.
Losses of Scanner :
- Every
images or document take a huge space to store.
- Sometime
scanner loses its original quality.
- The
quality of scanned images completely depends on the quality of document.
TO KNOW MORE THAN TYPES
USES AND WORKING OF A SCANNER, IMMEDIATELY COMMENT US BELOW AND GET FAST
INSTANT REPLY. THANK YOU.
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| Use of Scanner in Hospitals |
Benefits and Harms of Scanner, Scanner, Types of Scanner,
Use of Scanner in Hospitals, Software Required to Scan an image of Document, Flatbed
Sheet Fed Handheld Drum Scanner, CT Scan Scanner
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