NewFEIMAS
Refer to Revision Record on page 2.
T.Anzai
Nov. 20, 2008
K.Okada
Rev
04
03
PAGE
36
/
138
PFU LIMITED
P1PA03334-B30X/6
Refer to Revision Record on page 2.
T.Anzai
July 7, 2008
K.Okada
Refer to Revision Record on page 2.
K.Okada
K.Okada
DESCRIPTION
CHECK
DATE
T.Anzai
APPR.
K.Okada
K.Okada
Aug.19, 2005
DESIG
N
DESIG
.
CUST.
I.Fujioka
I.Fujioka
T.Anzai
CHECK
fi-5530C/fi-5530C2
IMAGE SCANNER
MAINTENANCE MANUAL
APPR.
TITLE
DRAW.
No.
Feb.23, 2007
05
Section 2-3
2-3 Controller
(1) Control PCA
The functional block diagram of Control PCA is shown in the figure below. Control PCA includes the following
connectors and a switch.
■
SCSI connector
■
USB connector
■
DC voltage input connector
■
SCSI ID setting rotary switch
If both SCSI and USB cables are connected,
- SCSI is selected when selection phase is recognized first.
- USB is selected when H level VBUS signal is detected first.
The firmware can be updated through a SCSI/USB interface using Firmware update tool.
Figure 2-3A
CCD
Controll
er
Timer
Interrupts
Controller
Micro Processor
Monochrome
Grayscale
Image
Memory
Control
White
Level
Memory
ADF Sensors
LF Motor
Controller
Simplified
Dynamic
Threshold
Dither /
Error diffusion
Amp
ADC
C
C
Le
Le
(600 dpi)
(600 dpi)
(1024 levels)
Color
Operator Panel
EEPROM
Dropout color
selection
USB
SCSI
ADF Front
ADF Back
Amp
White
Level
Control
Fixed
Threshold
Pre-processing
･
Emphasis
･
Moire removal
･
LUT transmission
JPEG compression
PICK Motor
BW Motor
Image
Memory
32MB
×
2
Motor
Driver
