1. A method of flushing oil from an oil inject circuit of a refrigerant recovery unit, comprising the steps of:
opening a vacuum solenoid, a high side inlet solenoid, and an oil inject solenoid with a controller;
removing a first type of refrigerant oil from the oil inject circuit by applying a vacuum from a vacuum pump to an oil inject hose line, the vacuum solenoid, the high side inlet solenoid, and the oil inject solenoid, wherein the controller controls the vacuum pump;
closing the vacuum solenoid, the high side inlet solenoid, and the oil inject solenoid with the controller; and
turning the vacuum pump off with the controller.
2. The method of claim 1 further comprising the steps of:
opening the oil inject solenoid for a predetermined period of time to inject a portion of a second type of refrigerant oil into the oil injection circuit; and
performing a hose flush routine to remove any remaining first type of refrigerant oil from the oil injection circuit.
3. The method of claim 1 further comprising the steps:
injecting a refrigerant into the oil injection circuit when the oil inject hose line is coupled to a high side service hose to complete a charging circuit; and
flushing the oil injection circuit with the refrigerant.
4. The method of claim 1, wherein the oil inject solenoid is closed before the vacuum solenoid and the high side inlet solenoid are closed.
5. The method of claim 4 further comprising the step of continuing to apply the vacuum after the oil inject solenoid is closed, but while the vacuum solenoid and the high side inlet solenoid are still open.
6. The method of claim 1 further comprising the step of requesting from a user whether to perform an oil type change in the refrigerant recovery unit on a display of the refrigerant recovery unit.
7. The method of claim 1, wherein the vacuum is applied for about 2 seconds to about 30 seconds.
8. The method of claim 1 further comprising the step of injecting a second type of refrigerant oil into the oil inject hose line to purge the oil inject hose line of the first type of refrigerant oil.
9. A refrigerant recovery unit, comprising:
an oil injection circuit that is configured to receive a first refrigerant oil from a first refrigerant oil bottle and to inject the first refrigerant oil into a vehicle refrigerant system, wherein the oil injection circuit comprises an oil inject solenoid and an oil hose line;
a high side inlet solenoid in communication with the oil inject solenoid;
a vacuum pump configured to apply a vacuum;
a vacuum solenoid in communication with the vacuum pump; and
a controller configured to control the opening and closing of the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid, wherein the controller opens the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid and applies the vacuum to flush the first refrigerant oil from the oil injection circuit.
10. The refrigerant recovery unit of claim 9, wherein after the controller opens the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid, then the oil inject solenoid is closed before the vacuum solenoid and the high side inlet solenoid are closed.
11. The refrigerant recovery unit of claim 9, wherein the vacuum is applied for about 2 seconds to about 30 seconds.
12. The refrigerant recovery unit of claim 9, wherein the oil injection circuit is further configured to inject a second refrigerant oil from a second refrigerant oil bottle and to inject the second refrigerant oil into the vehicle refrigerant system.
13. The refrigerant recovery unit of claim 9, wherein the first refrigerant oil bottle is coupled to the oil hose line but is uncoupled from the oil hose line before the vacuum is used to flush the oil injection circuit.
14. The refrigerant recovery unit of claim 9, wherein when a second refrigerant oil bottle is coupled to the oil injection circuit, the oil injection solenoid is opened for a predetermined period of time to flush out the first refrigerant oil.
15. The refrigerant recovery unit of claim 10, wherein the vacuum pump continues to apply the vacuum after the oil inject solenoid is closed but while the vacuum solenoid and the high side inlet solenoid are still open.
16. A refrigerant recovery unit, comprising:
means for injecting configured to receive a first refrigerant oil from a first refrigerant oil bottle and to inject the first refrigerant oil into a vehicle refrigerant system, wherein the means for injecting comprises an oil inject solenoid and an oil hose line;
a high side inlet solenoid in communication with the oil inject solenoid;
a vacuum pump configured to apply a vacuum;
a vacuum solenoid in communication with the vacuum pump; and
means for controlling configured to control the opening and closing of the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid, wherein the means for controlling opens the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid and applies the vacuum to flush the first refrigerant oil from the means for injecting.
17. The refrigerant recovery unit of claim 16, wherein after the means for controlling opens the oil inject solenoid, the vacuum solenoid, and the high side inlet solenoid, then the oil inject solenoid is closed before the vacuum solenoid, and the high side solenoid are closed.
18. The refrigerant recovery unit of claim 16, wherein the vacuum is applied for about 2 seconds to about 30 seconds.
19. The refrigerant recovery unit of claim 16, wherein the means for injecting is further configured to inject a second refrigerant oil from a second refrigerant oil bottle and to inject the second refrigerant oil into the vehicle refrigerant system.
20. The refrigerant recovery unit of claim 19, wherein when second refrigerant oil bottle is coupled to the means for injecting, the oil injection solenoid is opened for a predetermined period of time to flush out the first refrigerant oil.
21. The refrigerant recovery unit of claim 17, wherein the vacuum pump continues to apply the vacuum after the oil inject solenoid is closed but while the vacuum solenoid and the high side solenoid are still open.
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 toner kit comprising:
a pale cyan toner comprising at least a binder resin and a colorant; and
a deep cyan toner comprising at least a binder resin and a colorant,
the pale cyan toner and the deep cyan toner being separated from each other, wherein:
when a toner image fixed on plain paper is expressed by an L*a*b* color coordinate system where a* represents a hue in the red-green direction, b* represents a hue in the yellow-blue direction, and L* represents a lightness,
in a fixed image of the pale cyan toner, the pale cyan toner has a value of a* (a*C1) in a range of \u221230 to \u221219 when b* is \u221220 and a value of a* (a*C2) in a range of \u221245 to \u221229 when b* is \u221230;
in a fixed image of the deep cyan toner, the deep cyan toner has a value of a* (a*C3) in a range of \u221229 to \u221219 when b* is \u221220 and a value of a* (a*C4) in a range of \u221243 to \u221229 when b* is \u221230; and
the relationships of a*C1\u2266a*C3 and a*C2\u2266a*C4 are satisfied.
2. The toner kit according to claim 1, wherein:
a difference between a*C1 and a*C3 (a*C1\u2212a*C3) is in a range of \u22128 to \u22121; and
a difference between a*C2 and a*C4 (a*C2\u2212a*C4) is in a range of \u221212 to \u22121.
3. The toner kit according to claim 1, wherein:
the difference between a*C1 and a*C3 (a*C1\u2212a*C3) is in a range of \u22127 to \u22121; and
the difference between a*C2 and a*C4 (a*C2\u2212a*C4) is in a range of \u221210 to \u22121.
4. The toner kit according to claim 1, wherein:
the a*C1 is in a range of \u221226 to \u221219;
the a*C2 is in a range of \u221239 to \u221229;
the a*C3 is in a range of \u221223 to \u221219; and
the a*C4 is in a range of \u221235 to \u221229.
5. The toner kit according to claim 1, wherein:
the pale cyan toner has a value of L* in a range of 85 to 90 when c* represented by the following equation is 30; and
the deep cyan toner has the value of L* in a range of 74 to 84 when c* is 30.
c*=\u221a{square root over (a*2+b*2)}
6. The toner kit according to claim 1, wherein:
a hue angle (H*C1) of the pale cyan toner is in a range of 214 to 229\xb0; and a hue angle(H*C2) of the deep cyan toner is in a range of 216 to 237\xb0.
7. The toner kit according to claim 6, wherein:
a difference between H*C1 and H*C2 (H*C2\u2212H*C1) is in a range of 0.1 to 22\xb0.
8. The toner kit according to claim 6, wherein:
a difference between H*C1 and H*C2 (H*C2\u2212H*C1) is in a range of 1 to 17\xb0.
9. The toner kit according to claim 1, wherein:
the colorant of each of the pale cyan toner and the deep cyan toner contains a pigment.
10. The toner kit according to claim 1, wherein:
the pale cyan toner comprises 0.4 to 1.5% by mass of the colorant with respect to a total amount of the toner; and
the deep cyan toner comprises 2.5 to 8.5% by mass of the colorant with respect to the total amount of the toner.
11. The toner kit according to claim 1, wherein:
the deep cyan toner provides an optical density in a range of 1.5 to 2.5 for a solid image having a toner amount of 1 mgcm2 on paper; and
the pale toner provides an optical density in a range of 0.82 to 1.35 for the solid image having the toner amount of 1 mgcm2 on paper.
12. The toner kit according to claim 1, wherein:
the pale cyan toner and the deep cyan toner each have a charge control agent; and
a ratio of a content of the charge control agent in the pale cyan toner to a content of the charge control agent in the deep cyan toner is in a range of 0.60 to 0.95.
13. The toner kit according to claim 1, wherein:
a weight average particle diameter of the pale cyan toner is in a range of 3 to 9 \u03bcm; and
a weight average particle diameter of the deep cyan toner is in the range of 3 to 9 \u03bcm.
14. The toner kit according to claim 1, wherein a ratio of a weight average particle diameter of the pale cyan particle to a weight average particle diameter of the deep cyan particle is in a range of 1.05 to 1.40.
15. The toner kit according to claim 1, wherein:
each of the pale cyan toner and the deep cyan toner comprises inorganic fine powders selected from a group consisting of titania, alumina, silica, and double oxides thereof; and
a ratio of a specific surface area of the pale cyan toner to a specific surface area of the deep cyan toner is in a range of 0.60 to 0.95.
16. The toner kit according to claim 1, further comprising:
a pale color two-component developer comprising at least the pale cyan toner and a carrier; and
a deep color two-component developer comprising at least the deep cyan toner and a carrier.
17. The toner kit according to claim 1, further comprising:
a pale color one-component developer comprising the pale cyan toner; and
a deep color one-component developer comprising the deep cyan toner.
18.-45. (canceled)
46. A toner kit comprising:
a pale cyan toner comprising at least a binder resin and a colorant; and
a deep cyan toner comprising at least a binder resin and a colorant,
a pale magenta toner comprising at least a binder resin and a colorant; and
a deep magenta toner comprising at least a binder resin and a colorant,
the pale cyan toner, the deep cyan toner, the pale magenta toner, and the deep magenta toner being separated from each other, wherein:
when a toner image fixed on plain paper is expressed by an L*a*b* color coordinate system where a* represents a hue in the red-green direction, b* represents a hue in the yellow-blue direction, and L* represents a lightness,
in a fixed image of the pale cyan toner, the pale cyan toner has a value of a* (a*C1) in a range of \u221230 to \u221219 when b* is \u221220 and a value of a* (a*C2) in a range of \u221245 to \u221229 when b* is \u221230;
in a fixed image of the deep cyan toner, the deep cyan toner has a value of a* (a*C3) in a range of \u221229 to \u221219 when b* is \u221220 and a value of a* (a*C4) in a range of \u221243 to \u221229 when b* is \u221230;
the relationships of a*C1\u2266a*C3 and a*C2\u2266a*C4 are satisfied;
in a fixed image of the pale magenta toner, the pale magenta toner has a value of b* (b*M1) in a range of \u221218 to 0 when a* is 20 and value of b* (b*M2) in a range of \u221226 to 0 when a* is 30; and
in a fixed image of the deep magenta toner, the deep magenta toner has a value of b* (b*M3) in a range of \u221216 to 2 when a* is 20 a value of b* (b*M4) in a range of \u221224 to 3 when a* is 30, a difference between b*M1 and b*M3 (b*M1\u2212b*M3) in a range of \u22128 to \u22121, and a difference between b*M2 and b*M4 (b*M2\u2212b*M4) in a range of \u221212 to \u22121.
47. (canceled)