Hand scanners were early popular until the mid-1990s, but have long since disappeared from the market because of its disadvantages and the sharp drop in prices for flat-bed scanner.
These are recognized in connection with a pulse generator and the distance traveled on the template. To scan an A4 page, you have to scan several times, because the units are too narrow.
In medicine, there are different scanners, such as computer tomography, digital volume tomography, X-ray scanner, intraoral scanner and more. On the other hand, the drum scanner is one of the oldest types of scanners used by legal copy services but still provides the most accurate results. Resolution (about 12,000 ppi), speed and quality remain unmatched by other types of legal copy services equipment.
The drum scanner of the former world leader Heidelberg printing machines are equipped with the special software (SilverFast) which still used on modern computer systems. The drum is mounted on a rotating drum, with which the illumination and scanning system is linearly moved past so that the original is scanned helically.
Because the light source and the scanning system is always in the same position on the paper, excellent quality results can be achieved. In addition, drum scanners have instead of the normal CCD sensors highly sensitive photomultiplier for reading the data. The disadvantage is that they cost a lot and are very large. An early use of drum scanners was telegraphy.
Legal documents
When it comes to legal documents, the witness must confirm the fact of the document being written by the Principal. In this case, the Witness is called Subscribing Witness. However, this confirmation can not be used to authenticate powers of attorney, quitclaim deed, grant deed, security agreements, deed of trust, any documents related to real estate, any documents requiring a fingerprint, with notarization.
The witness must swear that the Principal signed the document and that the Witness is personally acquainted with the Principal. The witness must swear under oath that the Principal either signed the document in the presence of the Witness, or confirmed to the speedway that the document was signed by the principal
The witness must test under oath that it was the Principal who turned to the Witness, with a request for notarization, and the Witness acts in accordance with this request. The identity of the Witness must be established with the help of a third person personally familiar with the Witness and the Notary, who also must attend the notarization
Signature by mark – In case the person whose signature is required on the document is not able to write his name or sign the document, such a person can sign the document with a sign.
