IP Library › Granted Patent US 6,940,044
Granted Patent B2
US 6,940,044 · App. 10/620,139 · Granted Sep 6, 2005

System and method for utilizing a user non-perceivable light source in a machine

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Quick Facts
Patent No.
US 6,940,044
App. No.
10/620,139
Granted
Sep 6, 2005
Kind
B2
Abstract

A apparatus and method for fusing toner to media in a laser imaging device. A paraboloidal trough reflector is positioned about a linear heating element to focus and concentrate radiant energy emitted from the heating element onto a thermal spreader. The thermal spreader absorbs the radiant energy and converts it to heat. A thermoplastic fusing roller is rotatably supported about the bulb heater, the reflector and the thermal spreader. A pressure roller is supported to urge media against the fusing roller at the position of the thermal spreader. Fusing heat is conducted from the thermal spreader, through the fusing roller and to the media. The pressure roller is driven to rotate, thereby advancing the media through the fusing unit to fuse the toner thereto. Additionally, the present teachings disclose a printing device having a fusing unit with a bulb heater that emits user non-perceivable light. A mechanism is included for conveying light from the bulb heater to a location within the printing device. Also, a component positioned to receive the light and to utilize the light for illumination thereof in a user perceivable manner.

Claims (40)

1. A printing device, comprising:

a fusing unit having a bulb heater that emits user non-perceivable light;

a means for conveying light from the bulb heater to a location within the printing device, and

a component positioned at said location to receive the light conveyed by said means conveying light, said component operable to utilize the light for illumination thereof in a user perceivable manner.

2. A method of utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a first location, comprising the steps of:

directing energy from the user non-perceivable light source to a second location;

conveying light from the user non-perceivable light source to the first location; and

illuminating the user perceivable component with said conveyed light, wherein said component is a logo.

3. The method of claim 2 wherein said conveying step is accomplished through an unobstructed pathway from the user non-perceivable light source to said location.

4. The method of claim 2 wherein said conveying step includes the step of reflecting the light from a reflective surface toward the location.

5. The method of claim 2 wherein said convey step is accomplished by using a light pipe.

6. The method of claim 2 wherein said conveying step is accomplished by using a fiber optic.

7. The method of claim 2 wherein the component is translucent.

8. A method of utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a location, comprising the steps of:

intermittently conveying light from the user non-perceivable light source to the location; and

illuminating the user perceivable component with said conveyed light.

9. A method of utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a location, comprising the steps of:

intermittently conveying light from the user non-perceivable light source to the location; and

illuminating the user perceivable component with said conveyed light;

wherein the machine includes a device characterized by periodic motion, and wherein said conveying step is accomplished periodically according to the periodic movement of the device characterized by periodic motion.

10. A media processing device, comprising:

a fusing unit;

a bulb heater disposed within said fusing unit; and

an arrangement for utilizing light from the bulb heater for illumination.

11. A system for utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a location, comprising:

means for conveying light from the user non-perceivable light source to the location; and

means for intermittently illuminating the user perceivable component with said conveyed light.

12. A system for utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a location, comprising:

means for conveying light from the user non-perceivable light source to the location; and

means for illuminating the user perceivable component with said conveyed fight;

wherein the machine includes a device characterized by periodic motion and wherein said means for conveying includes means for periodically conveying light from the user non-perceivable light source to the location according to the periodic movement of the device characterized by periodic motion.

13. A system for utilizing light emitted from a user non-perceivable light source in a machine having a user perceivable component positioned at a location, comprising:

means for convoying light from the user non-perceivable light source to the location; and

means for illuminating the user perceivable component with said conveyed light;

wherein the component is a logo.

14. The system of claim 13 including an unobstructed pathway from the user non-perceivable light source to said location.

15. The system of claim 13 including means for reflecting the light from a reflective surface toward the location.

16. The system of claim 13 wherein said means for conveying includes a light pipe.

17. The system of claim 13 wherein said means for conveying includes an optic fiber.

18. The system of claim 13 wherein the component is translucent.