Printer power management

• US 6,801,730 B2
• Filed: 07/30/2002
• Issued: 10/05/2004
• Est. Priority Date: 07/30/2002
• Status: Expired due to Term

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Stringham, Gary Glen, Johnson, Warren Paul
• Primary Examiner(s): TRAN, HOAN H
• Application Number:
  US10/207,047
• Publication Number:
  US 20040022553A1
• Time in Patent Office: 798 Days
• Field of Search: 399/75, 399/76, 399/77, 399/81, 399/88, 358/432, 358/434, 358/442, 358/468, 358/404
• US Class Current: 399/75
• CPC Class Codes: G03G 15/5004 Power supply control, e.g. power-saving mode, automatic power turn-off

Abstract

A method for power management of a printer. In the method, a power mode is determined for the printer from one or more calendar entries. In addition, a power save mode is entered into in response a determination that the one or more calendar entries indicates that the printer should enter a power save mode.

Claims

1. A method for power management of a printer, said method comprising:

receiving one or more calendar entries;

determining a power mode for said printer from said one or more calendar entries; and

entering a power save mode in response to a determination that said one or more calendar entries indicates that the printer should enter a power save mode;

wherein said step of receiving said one or more calendar entries comprises receiving said calendar entries from a host device.

2. The method according to claim 1, further comprising:

initiating a clock to measure a passage of time from a predetermined event.

3. The method according to claim 2, wherein said clock initiating step comprises at least one of receiving a time stamp from a host device and operating an internal clock.

4. The method according to claim 1, further comprising:

entering an active mode in response to a determination that the one or more calendar entries indicate that the printer should enter an active mode.

5. A method for power management of a printer, said method comprising:

determining a power mode for said printer from one or more calendar entries;

entering a power save mode in response to a determination that the one or more calendar entries indicate that the printer should enter the power save mode;

entering an active mode in response to a determination that the one or more calendar entries indicate that the printer should enter the active mode; and

determining at least one of whether print data is being received by said printer and whether the printer is waiting to print prior to said step of entering the active mode.

6. The method according to claim 5, further comprising:

entering the active mode in response to at least one of print data being received and the printer waiting to print.

7. The method according to claim 5, further comprising:

entering the power save mode in response to no print data being received and the printer not waiting to print.

8. The method according to claim 7, further comprising:

determining whether a request for the active mode has been received; and

entering the active mode in response to receipt of a request for the active mode being determined.

9. A system for managing power in a printer having at least one component, said system comprising:

a memory configured to store a calendar;

a power supply controller configured to vary an amount of power supplied to said at least one component; and

a printer controller configured to access said calendar to determine a power mode for said printer, wherein said printer controller is operable to instruct said power supply controller to vary the amount of cower supplied to said at least one component in response to the power mode determination;

wherein said printer controller is further configured to receive one or more calendar entries from a host device.

10. The system according to claim 9, wherein said host device includes at least one of a computer, personal digital assistant, and server.

11. The system according to claim 9, wherein said printer controller is operable to initiate a clock to measure a passage of time from a predetermined event.

12. The system according to claim 9, wherein said power mode comprises at least one of an active mode and a power save mode.

13. The system according to claim 12, wherein said power save mode comprises a reduction in the amount of energy to operate said at least one component as compared to said active mode.

14. A printing device comprising:

means for storing at least one calendar with one or more entries;

means for analyzing said at least one calendar, wherein said means for analyzing is configured to determine a power mode of said printing device in response to said one or more calendar entries;

means for varying the cower mode of said printing device, wherein said means for analyzing is configured to instruct said means for varying according to said determined power mode; and

means for receiving one or more calendar entries from one or more host devices.

15. The printing device according to claim 14, wherein said means for varying comprises means for varying the power mode at least between an active mode and a power save mode.

16. A computer readable storage medium on which is embedded one or more computer programs, said one or more computer programs implementing a method for operating a printer, said one or more computer programs comprising a set of instructions for:

determining a power mode for said printer from one or more calendar entries;

entering a power save mode in response to a determination that the one or more calendar entries indicates that the printer should enter the power save mode;

entering an active mode in response to a determination that the one or more calendar entries does not indicate that the printer should enter the power save mode; and

determining at least one of whether print data is being received by said printer and whether the printer is waiting to print prior to said step of entering the active mode.

17. The computer readable storage medium according to claim 16, said one or more computer programs further comprising a set of instructions for:

entering the active mode in response to at least one of print data being received and the printer waiting to print.

18. The computer readable storage medium according to claim 16, said one or more computer programs further comprising a set of instructions for:

entering the power save mode in response to no print data being received and the printer not waiting to print.

19. The computer readable storage medium according to claim 18, said one or more computer programs further comprising a set of instructions for:

determining whether a request for the active mode has been received; and

entering the active mode in response to receipt of a request for the active mode being determined.

20. A method for power management of a printer, said method comprising:

receiving one or more calendar entries from host devices of a plurality of users; and

selecting a power mode for said printer from among a power save mode and an active mode based on the one or more calendar entries.

21. The method according to claim 20, further comprising:

initiating a clock to measure a passage of time from a predetermined event.

22. The method according to claim 21, wherein said clock initiating step comprises at least one of receiving a time stamp from a host device and operating an internal clock.

23. The method according to claim 20, further comprising:

entering said active mode.

24. A method for power management of a printer, said method comprising:

receiving one or more calendar entries from a plurality of users;

entering a power mode for said printer from among a power save mode and an active mode based on the one or more calendar entries;

entering said power save mode;

entering said active mode in response to a selection of said active mode; and

determining at least one of whether print data is being received by said printer and whether the printer is waiting to print prior to said step of entering the active mode.

25. A method for power management of a printer, said method comprising:

receiving one or more calendar entries from a plurality of users;

entering a power mode for said printer from among a power save mode and an active mode based on the one or more calendar entries;

entering said power save mode;

entering said active mode in response to a selection of said active mode; and

entering the active mode in response to at least one of print data being received and the printer waiting to print.

26. A method for power management of a printer, said method comprising:

receiving one or more calendar entries from a plurality of users;

entering a power mode for said printer from among a power save mode and an active mode based on the one or more calendar entries;

entering said power save mode;

entering said active mode in response to a selection of said active mode; and

entering the power save mode in response to no print data being received and the printer not waiting to print.

27. The method according to claim 26, further comprising:

determining whether a request for the active mode has been received; and

entering the active mode in response to receipt of a request for the active mode being determined.