AR-P16 (serv.man3). Service manual - Sharp Copying Equipment Service Manual (repair manual). Page 19

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AR-P16  OPERATION  7 - 3
Custom Setting dialog is automatically set with the Original Type as follows:
• When a user changes color dialog settings, "Original Type" is set Custom.
• When Original Type item is set to "Drawing (Thin line)", Screening item is set to "Automatic" on UI. However, in this case the drivers output "Draw-
ing" mode as PJL.
B.  Custom Settings
(1) Color Rendering
Color matching is set.
Setting value:
• [CMM Off]; No color matching. UCR select is invalid.
• [Perceptual Match (Photo)]; Used to print continuous gradation
images (photo images, etc.).
All colors (Colors within and outside printer color reproduction
gamut) are equally color-mapped.
• [Colorimetric Match]; Used to print in colors which are close to dis-
played colors.
Colors which are close to displayed colors are reproduced. Colors
outside the reproduction gamut are color-mapped by colorimetric
match.
Colors within printer color reproduction gamut are so color-mapped
that the color difference from CRT is minimized when print. Colors
outside printer color reproduction gamut are color-mapped by colori-
metric match.
UCR select is invalid.
• [Saturation Match]; Used to print graphical presentation documents
by saturation match.
Colors within printer color reproduction gamut are so color-mapped
that the color difference from CRT is minimized when print. Colors
outside printer color reproduction gamut are color-mapped by satu-
ration match.
• [SHARP Color]*; Used to print photo images and graphic images
together.
Colors are reproduced to express intermediate color reproduction
gamut between Perceptual Match and Saturation Match.
Color-mapped to have intermediate color reproduction gamut
between Perceptual Match and Saturation Match.
• [Perceptual Match (Web)]; Used to print Web page images.
Color matching is performed so that the overall saturation of an
image is reduced and the high-density gamut is widened than Per-
ceptual mode.
All colors (Colors within and outside printer color reproduction
gamut) are equally color-mapped.
Note: This process is done by PJL output.
(2) UCR Selection
The ratio to use black toner is set.
Setting value:
• [Low Black]; To output gray tint of photo which is difficult to repro-
duce. 
• [Standard]* ; For photo
• [High Black]; For CAD and graphs
Restriction:
• If "Color Rendering" item is set to "Colorimetric Match" or "CMM
OFF," this item is invalid.
Note: This process is done by PJL output.
(3) Black Overprint
When the background is color, whether black characters are over-
printed is set.
Setting value:
• [Off]*
• [On]
Note: This process is done by PJL output.
(4) Screening
Color matching is set.
Setting value:
• [Automatic]*; Automatically checks type of each area of the image
(photo or text/graphics), and output the image by changing halftone
accoding to each area.
• [Photo]; Outputs all areas by halftone for photo.
• [Text/Graphics]; Ouputs all areas by halftone for text/grahics.
Note: This process is done by PJL output.
(5) Pure Black Text
Select whether to print black text with only black toner.
Setting value:
• [Off ]; Print black text with CMYK toners.
• [On]* ; Print black text with only black toner.
Color Rendering
UCR Selection
Black Overprint
Screening
Pure Black Text
Original Type
Standard
SHARP Color
Standard
ON
Automatic
On
Graphics
Saturation Match
High Black
On
Text/Graphics
Off
Photo
Perceptual Match (Photo)
Low Black
Off
Photo
Off
Drawing (Thin line)
Saturation Match
High Black
On
Automatic
On
Web Page
Perceptual Match (Web)
Standard
Off
Automatic
On
Custom
No Change
No Change
No Change
No Change
No Change
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