2WIRE F-116P Benutzerhandbuch

2-26

1)  Pictorial signal input part: output signal of CIS passes through MP Cap change to ADC at LAFE1001, and 

defined signal between LAFE1001 and JUPITER5 processes the Image signal. When AFE accepts each 

pixel, CDS (Correlated Double Sampling ) technique which samples arm-level twice is used on each pixel 

by the CIS signal.

2)  The image processing portion is read by CIS Pixel data in 1200dpi Line and processed using an Error 

Diffusion Algorithm on Text mode and Photo mode. When scanning at machine and/or on PC Scan, the 

data is stored in a Scan Buffer without algorithm. 

Shading and Gamma Correction are executed immediately in every mode, then processing is executed 

later.

 * Scan Image Control Specification

  ① Minimum Scan Line Time : 0.75ms(300dpi)

  ② Scan Resolution : Max. 1200DPI

  ③ Scan Width : 216mm

  ④ main function

     - Internal 10bit ADC

     - White Shading Correction

     - Gamma Correction 

     - CIS  Interface

     - 256 Gray Scale

                   

3) CIS Operating Part : CISM Image sensor use +3.3V and LEDs uses +12V

     - CIS Maximum Operating Frequency : 4MHz

     - CIS Line time : 0.75ms 

     - White Data output Voltage : 1.0Vmin (Color mode : 300dpi, 0.75ms/line)

     - Maximum LED Current : 45~60 mA Max.( +12V)