Riso GR 3770 - Image Processing PCB (IPIF)

DESCRIPTION OF PCBs
IMAGE PROCESSING PCB (IPIF)
GR3770 APX(II)-10
4. Image Processing PCB (IPIF)
6
3
B2
B1
A2
A1
1
CN4
To FBI PCB
CN5
To Power Supply
PCB CN5
CN2
1 2
39 40
To System PCB2
To TPH
1 2
27 28
CN6
SW1
LED3 LED2 LED1
IC30
SW
SW1(GAM) : For Gamma compensation adjustment
Light (0) - Dark (F)
SW2(SLICE) : Line mode slice level adjustment
Dark (0) - Standard (8) - Light (F)
SW3(ADF) : ADF Read Pulse Motor speed adjustment(Image elongation/shrinkage)
Shrink (0) - Standard (8) - Elongate (F)
SW4(WPM) : Write Pulse Motor speed adjustment
Shrink (0) - Standard (8) - Elongate (F)
SW5(FB) : FB Read Pulse Motor speed adjustment(Image elongation/shrinkage)
Shrink (0) - Standard (8) - Elongate (F)
SW6(HP) : Paper Size potentiometer compensation adjustment
(0 - F)
SW2
SW3
SW4
SW5 SW6
CN1 CN3
4
1
B30
B29
A30
A29
2
1
26
25
8
GAM
SLICE WPM FB
ADF HP
IC45
IC10
IC40
IC39
IC47
To FBI PCB To Digitizer PCB
LED
LED1(+5V) : +5V
LED2(+12V) : +12V
LED3(+24V) : +24V
TP
TP1 : GND
TP47 : GND