Ricoh A250 Service Manual page 416

VIDEO DATA PATH
1.4 VIDEO DATA PATH
1.4.1 TRANSMISSION
Memory Tx
Auto Shading
Gamma Correction
M T F
Graduation Processing
Main Scan Reduction
- 400 to 200 dpi
Thresholding
Memory Tx
without image
rotation
FACE
(DCMMR)
FCU
NCU
Analog G3
A250
Scanner
BiCU
FACE
(VIF)
Memory Tx
with Image Rotation
FACE
Page Memory
(Rotation)
FACE
(DCMMR)
SAF Memory
D e c o m p r e s s i o n
C o m p r e s s i o n
(Main Scan Reduction)
FACE
(DCR)
Modem
CiG4
ISDN G3
Sub Scan Magnification
Immediate Tx
Auto Shading
Gamma Correction
M T F
Graduation Processing
Main Scan Reduction
- 400 to 200 dpi
- Inch-mm Conversion
- A3 to B4, A3 to A4, B4 to A4
Thresholding
Immediate Tx
Page Memory
J B I G
C o m p r e s s i o n
EXFUNC board
QM-CODER
(Optional)
1-8
FACE
FACE
(DCR)
C o m p r e s s i o n
CiG4
ISDN G4
A891V501.WMF
SM