1. A method of performing reduction printing in an image forming apparatus, the method comprising:
receiving image data, in which a reduction print option is set, from a host device connected to the image forming apparatus;
determining whether there is at least one unprintable line due to the reduction print option based on line widths of lines forming at least one object included in the image data;
when it is determined that there is an unprintable line, determining whether a line width of the unprintable line will be compensated;
rendering the object based on the image data, in which a result of the determining of whether the line width of the unprintable line will be compensated is reflected; and
performing a reduction printing operation by printing the object based on a rendering result.
2. The method of claim 1, wherein, in the determining of whether there is at least one unprintable line, it is determined that there is an unprintable line when there is a line width less than a threshold value.
3. The method of claim 2, wherein the threshold value is 1 dot.
4. The method of claim 1, further comprising compensating for the line width of the unprintable line to be a value that is printable by the image forming apparatus, when it is determined that the line width of the unprintable line will be compensated,
wherein, in the rendering of the object, the object is rendered based on the compensated line width.
5. The method of claim 1, wherein the value that is printable is 1 dot.
6. The method of claim 1, further comprising calculating a line width of a line that will be reduced by a reduction ratio set in the reduction print option,
wherein the determining of whether there is at least one unprintable line is performed based on the calculated line width.
7. The method of claim 1, wherein the determining of compensation is performed based on a raster operator between lines, when the image data includes a plurality of lines that will be printed as overlapping each other due to compensation of line widths.
8. The method of claim 7, wherein, in the determining of compensation, it is determined that line widths of non-overlappable lines are not compensated based on the raster operator.
9. The method of claim 7, wherein it is determined that line widths of overlappable lines are compensated based on the raster operator.
10. The method of claim 1, wherein the reduction print option is at least one of an option for reducing a plurality of pages on one printing medium, and an option for reducing one page on one printing medium by a predetermined reduction ratio.
11. A non-transitory computer readable recording medium having embodied thereon a computer program for executing a method, the method comprising;
receiving image data, in which a reduction print option is set, from a host device connected to the image forming apparatus;
determining whether there is at least one unprintable line due to the reduction print option based on line widths of lines forming at least one object included in the image data;
when it is determined that there is an unprintable line, determining whether a line width of the unprintable line will be compensated;
rendering the object based on the image data, in which a result of the determining of whether the line width of the unprintable line will be compensated is reflected; and
performing a reduction printing operation by printing the object based on a rendering result.
12. An image forming apparatus comprising:
a network interface unit to receive image data, in which a reduction print option is set, from a host device;
a line determiner to determine whether there is at least one unprintable line due to the reduction print option based on line widths of lines forming at least one object included in the image data;
a compensation determiner to determine whether a line width of the unprintable line will be compensated when it is determined that there is an unprintable line;
a rendering unit to render the object based on the image data in which a result of the compensation determiner is reflected; and
a printing unit to perform a reduction printing by printing the object based on a rendering result.
13. The image forming apparatus of claim 12, wherein the line determiner determines that there is an unprintable line when there is a line width less than a threshold value.
14. The image forming apparatus of claim 13, wherein the threshold value is 1 dot.
15. The image forming apparatus of claim 12, further comprising a compensator to compensate for the line width of the unprintable line to be a printable value in the image forming apparatus when it is determined that the line width of the unprintable line will be compensated,
wherein the rendering unit performs the rendering of the object based on the compensated line width.
16. The image forming apparatus of claim 15, wherein the value that is printable is 1 dot.
17. The image forming apparatus of claim 12, further comprising a calculator to calculate a line width of a line that will be reduced according to a reduction ratio set in the reduction print option,
wherein the line determiner performs the determining based on the calculated line width.
18. The image forming apparatus of claim 12, wherein the compensation determiner determines the compensation based on a raster operator between lines, when the image data includes a plurality of lines that will be printed as overlapping each other due to compensation of line widths.
19. The image forming apparatus of claim 18, wherein the compensation determiner determines that line widths of non-overlappable lines are not compensated based on the raster. operator.
20. The image forming apparatus of claim 18, wherein the compensation determiner determines that line widths of overlappable lines are compensated based on the raster operator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A pneumatic chest compression vest comprising:
a front panel with an inner and outer surface and a first air port;
an air bladder which is in communication with the first air port;
a belt which is connected to one end of the front panel, is long enough to wrap around sides and back of a patient and across the outer surface of the front panel and having a first belt hole; and
a first air coupling which extends through the first belt hole and through the first air port to hold the belt in position and to connect the air bladder to a source of pneumatic pressure.
2. The vest of claim I and further comprising:
a second air port on the front panel in communication with the air bladder;
a second belt hole longitudinally spaced from the first belt hole along the belt; and
a second air coupling which extends through the second belt hole and the second air port to hold the belt in position and to connect the air bladder to the source of oscillating pneumatic pressure.
3. A pneumatic chest compression vest comprising:
a front panel with an inner and outer surface and a plurality of longitudinally spaced air ports extending therethrough;
an air bladder which is in communication with the air ports;
a belt which is connected to one end of the front panel, is long enough to wrap around sides and back of a patient and across the outer surface of the front panel, and has a plurality of longitudinally spaced belt holes, the plurality of belt holes being greater in number than the plurality of air ports, wherein when the belt is wrapped across the first panel each of the air ports is alignable with one of the belt holes; and
a plurality of air couplings, equal is number to the air ports, which extend through the alignable belt holes and through the air ports to hold the belt in position and to connect the air bladder to a source of pneumatic pressure.
4. The vest of claim 3 and further comprising:
a tab on the front panel that is insertable into one of the belt holes to assist in aligning belt holes with air ports.
5. The vest of claim 3 wherein the belt holes have slits.
6. The vest of claim 3 wherein the belt is made of an inelastic material.
7. The vest of claim 3 wherein the front panel is made of an inelastic material.
8. The vest of claim 3 wherein the belt is made of a material which produces no toxic emissions when burned and little particulate matter.
9. The vest of claim 3 wherein a height of the belt is between about 6.0 to 9.0 inches.
10. The vest of claim 3 wherein a length of the belt is about 36 inches.
11. The vest of claim 3 wherein the front panel and belt are made of 8 mil polycarbonate.
12. A pneumatic chest compression vest for applying pressure to a chest of a patient, the vest comprising:
an inflatable bladder;
a front panel positionable over the patient’s chest, the front panel carrying the inflatable bladder on an inner surface and having a first air port extending therethrough;
a belt having a first end portion connected to the front panel, having a middle portion for wrapping around a back of the patient, and having a second end portion for wrapping across an outer surface of the front panel, the second end portion having a first belt hole therethrough which is alignable with the first air port; and
an air coupling insertable through the first belt hole and through the first air coupling when they are aligned, for holding the second end portion of the belt in position and for connecting the air bladder to a source of pneumatic pressure.
13. The vest of claim 12 wherein the inflatable bladder engages a front and sides of the patient’s chest.
14. The vest of claim 12 wherein the inflatable bladder engages a region of the patient’s chest which encompasses lungs of the patient.
15. The vest of claim 12 wherein the vest is asymmetric from front to back.
16. The vest of claim 12 wherein the vest is shaped to apply a compressive force to cause the patient’s chest to change shape.
17. A pneumatic chest compression vest comprising:
a front panel with an inner surface, an outer surface, and a first air port extending between the inner surface and the outer surface;
an air bladder positioned on the inner surface of the front panel and in communication with the first air port;
a belt which is connected at a first end to the front panel and which is long enough to wrap around sides and back of a patient so that a second end portion of the belt extends across the outer surface of the front panel, the second end portion having a first belt hole which is alignable with the first air port; and
a first air coupling insertable through the first belt hole and through the first air port when they are aligned, for holding the belt in position and for connecting the air bladder to a source of pneumatic pressure.
18. The vest of claim 17 and further comprising:
a second air port on the front panel in communication with the air bladder;
a second belt hole longitudinally spaced from the first belt hole along the belt; and
a second air coupling which extends through the second belt hole and the second air port to hold the belt in position and to connect the air bladder to the source of oscillating pneumatic pressure.
19. The vest of claim 17 wherein the air bladder is shaped to produce compressive forces of a magnitude to induce deep sputum from a lung of the patient or fully clear the patient’s lung of mucus.
20. The vest of claim 17 and further comprising:
suspenders for positioning the vest.
21. The vest of claim 17 wherein the air bladder is integral with the front panel.
22. The vest of claim 17 wherein the front panel and belt remain substantially unchanged in shape when subjected to a source of oscillating pneumatic pressure.
23. The vest of claim 17 wherein a top edge of the front panel is positioned near a collar bone of the patient, and a bottom edge of the front panel is positioned near a bottom of a rib cage of the patient.
24. A pneumatic chest compression vest comprising:
a front panel with an inner and outer surface and a first air port;
an air bladder which is in communication with the first air port;
a belt which is connected to one end of the front panel, is long enough to wrap around sides and back of a patient and across the outer surface of the front panel, and has a plurality of longitudinally spaced belt holes; and
a first air coupling which extends through one of the belt holes and the first air port to hold the belt in position and to connect the air bladder to a source of oscillating pneumatic pressure.
25. A method of securing a pneumatic chest compression vest, the method comprising:
positioning a front panel of the vest over a patient’s chest, the front panel carrying an inflatable bladder;
wrapping a belt around the patient’s back and across the front panel so that belt holes are aligned with air ports in the front panel; and
inserting an air coupling through the aligned belt holes and air ports.