Granted Patent B2

US 7,822,352 · App. 11/231,010 · Granted Oct 26, 2010

Abstract

Claims (36)

1. A method of thermally conditioning an image forming apparatus including a heating device and a component wherein the component includes a lubricant and the lubricant is capable of exhibiting a targeted viscosity at a first selected temperature, comprising:

setting said heating device to said first selected temperature, wherein said first selected temperature is less than a printing temperature and greater than a temperature of said heating device when not heated, and heating said heating device to said first selected temperature;

maintaining said heating device at said first selected temperature for a selected time prior to moving said component including said lubricant, said selected time being greater than an amount of time for said heating device to be at said first selected temperature temporarily while being heated to a temperature greater than the first selected temperature;

moving said component at a first velocity that is lower than a printing velocity of said image forming apparatus after maintaining said heating device at said first selected temperature for said selected time, wherein said setting, heating and maintaining said heating device and moving said component at a first velocity are independent of receiving a print request by the image forming apparatus; and

following said selected time, heating said heating device to a second selected temperature greater than the first selected temperature, wherein heating said heating device to the second selected temperature is independent of receiving a print request by the image forming apparatus; and

following said heating device reaching said second selected temperature, determining whether a print request has been received since said setting of said heating device.

2. The method of claim 1 including increasing a velocity of said component from said first velocity to a printing velocity prior to a start of printing.

3. The method of claim 1 wherein maintaining said heating device at said first selected temperature for said selected time heats said component.

4. The method of claim 1 wherein after maintaining said heating device at said first selected temperature for said selected time said lubricant exhibits said targeted viscosity.

5. The method of claim 1 wherein said heating device is provided in a cold start mode wherein said heating device is initially at ambient temperature.

6. The method of claim 1 wherein said heating device is provided in a power saver mode wherein said heating device is at said first selected temperature.

7. The method of claim 1 , further comprising:

entering into a standby mode of operation upon an affirmative determination that a print request has not be received.

8. The method of claim 7 , further comprising:

following entering into the standby mode of operation, heating said heating device to said first selected temperature until a print request is received.

9. An image forming apparatus comprising:

a heating device;

a component including a lubricant wherein said lubricant exhibits a targeted viscosity at a first selected temperature; and

a processor in communication with said heating device, wherein said processor is configured to control said heating device to set said heating device to a first selected temperature, wherein said first selected temperature is less than a printing temperature but greater than a temperature when said heating device is not powered, and heat to said first selected temperature and maintain said first selected temperature for a selected period of time prior to moving said component including said lubricant, said selected period of time being a time greater than a time said heating device is temporarily at said first selected temperature while being heated to a temperature greater than said first selected temperature, wherein said processor is further configured to move said component at a first velocity that is lower than a printing velocity of said image forming apparatus after maintaining said heating device at said first selected temperature for said selected period of time, wherein heating and maintaining said heating device and moving said component at a first velocity are independent of receiving a print request by the image forming apparatus;

wherein the processor, following maintaining said heating device at said first selected temperature for said selected period of time, heats said heating device to a second selected temperature greater than the first selected temperature independent of receiving a print request by the image forming apparatus, and following said heating device reaching said second selected temperature determines whether a print request has been received since said heating device was heated to said first selected temperature.

10. The image forming apparatus of claim 9 further comprising a timer configured to measure said selected period of time.

11. The image forming apparatus of claim 9 wherein said processor is further configured to increase a velocity of said component from said first velocity to a printing velocity prior to start of printing.

12. The image forming apparatus of claim 9 wherein said heating device is a ceramic heating device.

13. The image forming apparatus of claim 9 wherein said component is a belt.

14. The apparatus of claim 9 , wherein the processor, upon a determination that a print request has not been received, heats said heating device to said first selected temperature until a print request is received.

15. An article comprising:

a storage medium having stored thereon instructions that when executed by a machine result in the following operations:

setting a heating device to a first selected temperature, wherein said first selected temperature is less than a printing temperature and greater than a temperature when said heating device is not heated, and heating said heating device in a printing apparatus including a component to said first selected temperature, wherein said first selected temperature provides a selected lubricant viscosity;

maintaining said heating device at said first selected temperature for a selected period of time prior to moving said component, said selected period of time being greater than a time at which said heating device is temporarily at said first selected temperature while being heated to a higher temperature than said first selected temperature;

moving said component at a first velocity that is lower than a printing velocity of said printing apparatus after maintaining said heating device at said first selected temperature for said selected period of time, wherein heating said heating device and moving said component at a first velocity are independent of receiving a print request by the image forming apparatus;

heating said heating device to a second selected temperature which is greater than said first selected temperature independent of receiving a print request by the image forming apparatus; and

following said heating device being heated to said second selected temperature, heating said heating device to said first selected temperature upon a determination that no print request has been received, until a print request is received.

16. The article of claim 15 wherein said storage medium has stored thereon instructions that when executed by said machine result in the further following operations:

increasing a velocity of said component from said first velocity to a printing velocity prior to start of printing.

17. The article of claim 15 , wherein said storage medium has stored thereon instructions that when executed by said machine result in said heating device being heated to said second selected temperature following said selected period of time.

18. The article of claim 15 , wherein said second selected temperature is less than a printing temperature of said heating device.

Assignments (7)