Pale (Low-Density Mode) - Ricoh B003 Service Manual

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 Shading Correction
Correction
Pre-Entry Background Erase
Processing
Magnification Main Scan Direction
Independent Dot Erase
Filter
Processing MTF Correction
Density Control
Grayscale Dither/Error Diffusion
Processing
SM
CÓPIA NÃO CONTROLADA
Related SP Modes
!
SP4-903-68 (Background Erase Level)
!
Smoothing SP4-903-15 (Pre-Filter Coefficient)
!
SP2-909-01 (Main Scan Magnification)
!
SP4-903-63 (Independent Dot Erase Level)
!
SP4-903-55 (MTF Filter Coefficient)
SP4-903-56 (MTF Filter Strength)
!
γ Coefficient
!
6-25
CÓPIA NÃO CONTROLADA
IMAGE PROCESSING
B003/B004/B006/B007