Toshiba e-STUDIO281c Service Manual page 178

13)Black over print (Post Script)
When black data of text or graphic object are formed on a certain background with no written data
underneath them, the color of the paper comes out around the black data when "out-of-color regis-
tration" is occurring. To prevent this phenomenon, this process enables to keep the background
color around the black data formed as a part of the text or the graphic object on the printer data.
Ideal image
Black data
Paper
Background
14)Pure black / Pure gray (Post Script) / Pure gray (PCL5C)
This function is to printout the text and graphics formed as black data with black toner only on the
printer data, not using 4 color toner. The gray text/graphics are also printed out with black toner only.
15)Chroma adjustment (PCL5C)
This function adjusts chromaticness of the printer data.
16)Brightness adjustment (PCL5C)
This function adjusts brightness of the printer data.
e-STUDIO281c/351c/451c IMAGE PROCESSING
Out of color registration
Black data
Paper
Background
Fig.7-7
7 - 8
Black over print
Black data
Background
June 2005 © TOSHIBA TEC
Paper