Pale (Low-Density Mode) - Ricoh B079 Service Manual

IMAGE PROCESSING

Pale (Low-Density Mode)

Pale achieves image quality comparable with Text mode, but of lower contrast.
Pale employs an MTF filter stronger than that employed by the Text mode and
uses a darker γ coefficient, thus increasing the incidence of copying textured
backgrounds. Ideal for copying extremely thin originals. Soft employs an MTF filter
weaker than Normal, thus achieving a softer image with less moiré. Sharp employs
an MTF filter stronger than that of Normal, thus increasing the sharpness of lines.
Image Processing Flow
Scanner Image
Correction
Pre-Filter
Processing
Pre-Filter Smoothing
Magnification Main Scan Direction
Independent Dot Erase
Filter
Processing
Density Control
Grayscale
Processing
Note: An SP code number and name set in bold italic denotes an SSP (Special Service Program)
mode. To access an SSP, enter the SP mode: press and hold down  on the 10-key pad then
"Copy SP" on the touch-screen.
B079/B082
CÓPIA NÃO CONTROLADA
Shading Correction
!
Background Erase
!
!
!
!
MTF Correction
!
γ Coefficient
!
Error Diffusion
CÓPIA NÃO CONTROLADA
Related SP Modes
SP4903 68 (Background Erase Level: Light
Original)
SP4903 15 (Pre-Filter: Light)
SP2909 1 (Main Scan Magnification)
SP4903 63 (Independent Dot Erase: Light
Original)
SP4904 29 Pale (General) Quality (!pg. 6-35)
6-26 SM