Canon 9080C - DR - Document Scanner Manual do Utilizador descarregar pdf (Página 9)

DR-7580/9080C Release Letter 9 Version 2.0 June 2005

Reliable Double-Feed Detection and Skew Detection

The DR-7580/9080C offer two reliable methods for detecting document double feeds, i.e., ‘by

Length’ and/or ‘by Ultrasonic.’ When the ‘Detect by Length’ option is selected, the scanner is set

to memorize the document length of the very first document, and recognize thereafter as a double

feed whenever the length of any of the following documents exceeds a length allowance from the

memorized standard. The ‘Detect by Ultrasonic’ option can also be combined or independently

selected for example if different sizes of documents are to be scanned. With this option, a pair of

Ultrasonic Sensor units exchanges Ultrasonic waves to detect the gap, i.e. layer of air, if any,

between double-fed papers, and signals a double feed occurrence for the scanner to stop

scanning. The detection system works when a document overlaps by more than 2 inches.

The DR-7580/9080C is

equipped with Document

Skew Sensors, which

immediately detect large

documents being fed at an

angle, preventing the

documents from tearing or

jamming. Whenever a

skewed document feeding is

detected, scanning is

temporarily stopped, followed

by an error message alerting

scanner operators.

Patented Staple Detection

Canon’s patented on-board Staple Detection feature automatically stops the scanning process

whenever it detects an un-removed staple that could damage the device, or require jam clearing

or exception scanning, that would negatively affect throughput rates. Undetected, such errors

could compromise the document, or worse, cause the loss of critical information. This feature

works when documents are stapled in normal position and has a user adjustable sensitivity

range.

When a stapled document is about to

feed, the document lifts-up as

illustrated. The sensors built-in on both

sides of feeder detect this reaction as a

stapled document.

Staple Detection can not work in the

following cases:

• When documents are stapled

at positions other than the 4

corners

• When documents are A5 or smaller

• When documents are stapled at 2 or more positions

Unique MultiStream™ Capability

File output options are greatly expanded to fit a wider range of applications with MultiStream™

technology, enabling users to generate multiple images simultaneously, in a variety of

combinations, all from a single scan, i.e., color (DR-9080C only), black and white, grayscale,

binary, R/G/B color dropout and even different resolutions. Now applications with multiple

processing and archiving requirements can be scanned in one pass, with virtually no reduction in

throughput speed. For instance, a form with legal retention requirements can be scanned and

output in two “streams”; one with the full image for archive and one with color-dropout for data

processing.

Ultrasonic emitter

Ultrasonic sensor

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