1. A cleaning apparatus comprising:
a container in which solvent is sealed therein;
a temperature maintaining device which maintains the temperature of the solvent at a constant value;
a CO2 gas line which introduces solvent gas contained in the container;
a line filter which is disposed in an intermediate position in the CO2 gas line;
a nozzle which is disposed at another end of the CO2 gas line; wherein
the distance between the workpiece to be cleaned and the nozzle is maintained at a constant value;
the solvent is ejected from the nozzle toward the workpiece to be cleaned;
the state of the solvent which reaches the workpiece to be cleaned is adjusted by controlling the distance between the workpiece to be cleaned and the nozzle.
2. A cleaning apparatus according to claim 1, wherein
a nozzle and a workpiece to be cleaned are disposed nearly orthogonally;
a distance between the workpiece to be cleaned and he nozzle is controlled so as to be lower than a value which is represented by the formula
2
\xd7
D
\xd7
P
0
3
\u2062
\u2003
\u2062
(
D
=
diameter
\u2062
\u2003
\u2062
of
\u2062
\u2003
\u2062
nozzle
\u2062
\u2003
\u2062
18
,
P
0
=
pressure
\u2062
\u2003
\u2062
of
\u2062
\u2003
\u2062
solvent
)
.
3. A cleaning apparatus according to claim 1, wherein a temperature maintaining device is controlled so as to maintain the pressure of solvent gas sealed in a container.
4. A cleaning apparatus according to claim 1, wherein an air operating valve is disposed between a line filter and a nozzle.
5. A cleaning apparatus according to claim 1, wherein
a nozzle has double-pipe structure;
solvent is injected from an inner pipe of the nozzle;
purging gas is injected from an outer pipe of the nozzle.
6. A cleaning apparatus according to claim 1, wherein a purging device which injects purging gas to the periphery of the workpiece to be cleaned so as to make a surrounding of the workpiece to be cleaned be in purging gas atmosphere and a heating device which heats the workpiece to be cleaned so as to prevent condensation are provided.
7. A cleaning apparatus according to claim 6, wherein a nozzle, a purging device, and a heating device are in one unit.
8. A cleaning apparatus according to claim 1, wherein a spindle which rotates a workpiece to be cleaned and a handling device which loads the workpiece to be cleaned to the spindle and unloads therefrom are provided.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. An image processing method, which generates raster data, based on image data input with drawing commands from an image processing terminal, the method comprising the steps of:
(a) detecting a compressed image for each of color plates of C, M, Y, and K; and
(b) converting a value of C, M, Y, and K corresponding to the plate color of the detected compressed image into a value of K by using a color management system.
2. The image processing method of claim 1, wherein the color management system is switched for each color plate.
3. The image processing method of claim 1, wherein when the compressed image is detected, values of colors other than the plate color are set to 0.
4. The image processing method of claim 1, wherein as the color management system, a 4-input 3-output lookup table and a 3-input 4-output lookup table are used.
5. The image processing method of claim 1, wherein when the compressed image is detected, a setting of drawing the compressed image in white is canceled.
6. The image processing method of claim 5, wherein in step (a), when the plate color being processed is determined as a special color different from C, M, Y, and K, the setting of drawing the compressed image in white is maintained.
7. The image processing method of claim 1, wherein each of the color plates of C, M, Y, and K is output in color.
8. The image processing method of claim 1, wherein each of the color plates of C, M, Y, and K is output in black and white.
9. The image processing method of claim 1, wherein a color correction is made on the generated raster data.
10. An image processing apparatus, which generates raster data based on image data input with drawing commands from an image processing terminal, the apparatus comprising:
a detection component, which detects a compressed image for each of color plates of C, M, Y, and K; and
a conversion component, which converts a value of C, M, Y, or K corresponding to the plate color of the detected compressed image into a value of K by using a color management system.
11. The image processing apparatus of claim 10, wherein the color management system is switched for each color plate.
12. The image processing apparatus of claim 10, wherein when the compressed image is detected, values of colors other than the plate color are set to 0.
13. The image processing apparatus of claim 10, wherein as the color management system, a 4-input 3-output lookup table and a 3-input 4-output lookup table are used.
14. The image processing apparatus of claim 10, wherein when the compressed image is detected, a setting of drawing the compressed image in white is canceled.
15. The image processing apparatus of claim 14, wherein the detection component determines a plate color being processed, and when the plate color being processed is determined as a special color different from C, M, Y, and K, the setting of drawing the compressed image in white is maintained.
16. The image processing apparatus of claim 10, wherein each of the color plates of C, M, Y, and K is output in color.
17. The image processing apparatus of claim 10, wherein each of the color plates of C, M, Y, and K is output in black and white.
18. The image processing apparatus of claim 10, wherein a color correction is made on the generated raster data.