# US 8,543,855 B2 · Energy efficient multifunction printing systems and methods for exiting low power mode

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- Number: US 8,543,855 B2
- Document ID: US8543855B2
- Status: Granted
- Kind: B2
- Application number: 13/092,357
- Filed: 2011-04-22
- Published: 2012-10-25
- Granted: 2013-09-24
- Earliest claimed: 2011-04-22
- Assignees: Xerox Corporation
- Applicants: Christopher Moloney
- Inventors: Christopher Moloney
- Web page: https://patentgrep.com/patent/US8543855B2

## CPC

- G06F 1/3284: {Power saving in printer}
- G06F 1/3206: Monitoring of events, devices or parameters that trigger a change in power modality
- H04N 1/00896: {using a low-power mode, e.g. standby}
- H04N 2201/0094: Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception
- Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management
- Y02D 30/50: in wire-line communication networks, e.g. low power modes or reduced link rate
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Multifunction document processing systems and operating methods are presented for energy efficient transitions from low power mode to a partially functional mode in which only certain document processing components are initialized and powered in order to support document processing tasks selected by a user.

## Claims

### Claim 1

A method for operating a multifunction document processing system, the method comprising:
operating the document processing system in a low power mode;
detecting a first user input to the system at a first time while the document processing system remains in the low power mode;
in response to the first user input, prompting a user for further input while keeping the document processing system in the low power mode; where prompting the user for further input comprises prompting the user to select full or partial functionality while keeping the document processing system in the low power mode;
if no further user input is received within a first predetermined time from the first time, keeping the document processing system in the low power mode; and
if a second user input is received within the first predetermined time from the first time, initializing at least one power consuming document processing component of the system to perform at least one user-directed document processing task; further comprising:
if a second user input is received within the first predetermined time from the first time indicating user selection of partial functionality, initializing one or more power consuming document processing components necessary to perform a user-directed document processing task indicated by the second user input while keeping at least one power consuming document processing component at low or zero power.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
if a second user input is received within the first predetermined time from the first time indicating user selection of partial functionality, further prompting the user to select a specific document processing task;
receiving a third user input indicating a specific document processing task; and
initializing only power consuming document processing components necessary to perform the specific document processing task indicated by the third user input while keeping at least one power consuming document processing component at low or zero power.

### Claim 3 (depends on 2)

The method of claim 2, comprising, in response to the first user input, performing a full initiation of all document processing components necessary to perform any user-directed document processing task if the system is not in a green operational mode.

### Claim 4 (depends on 3)

The method of claim 3, comprising determining if the system is not in the green operational mode according to a green mode schedule based on a current time and a current day.

### Claim 5 (depends on 4)

The method of claim 4, comprising allowing the user to set or modify the green mode schedule.

### Claim 6 (depends on 1)

The method of claim 1, comprising, in response to the first user input, performing a full initiation of all document processing components necessary to perform any user-directed document processing task if the system is not in a green operational mode.

### Claim 7 (depends on 6)

The method of claim 6, comprising determining if the system is not in the green operational mode according to a green mode schedule based on a current time and a current day.

### Claim 8 (depends on 7)

The method of claim 7, comprising allowing the user to set or modify the green mode schedule.

### Claim 9

A multifunction document processing system, comprising:
a plurality of power consuming document processing components operative to perform document processing operations on documents;
a power management component configured to selectively operate the document processing system in a low power mode and to control initialization and powering of document processing components of the system;
a user interface operative to receive user inputs, the user interface operative when the document processing system is in the low power mode;
to detect a first user input by detecting actuation by a user of a button or touch screen display of the user interface at a first time, and
to prompt the user for further input in response to the first user input by prompting the user to select full or partial functionality by displaying a prompt screen on a display of the user interface prompting the user to select full or partial functionality while the power management component keeps the document processing system in the low power mode, and
to receive a second user input by the user actuating a button or touch screen display of the user interface indicating user selection of partial functionality within the first predetermined time from the first time;
where the power management component is operative:
to keep the document processing system in the low power mode if no further user input is received within a first predetermined time from the first time, and
in response to the user interface receiving the second user input within the first predetermined time from the first time indicating user selection of partial functionality, to initialize one or more power consuming document processing components necessary to perform a user-directed document processing task indicated by the second user input while keeping at least one power consuming document processing component at low or zero power.

### Claim 10 (depends on 9)

The document processing system of claim 9:
where the user interface is operative if a second user input is received within the first predetermined time from the first time indicating user selection of partial functionality, to further prompt the user to select a specific document processing task, and to receive a third user input indicating a specific document processing task; and
where the power management component is operative to initialize only power consuming document processing components necessary to perform the specific document processing task indicated by the third user input while keeping at least one power consuming document processing component at low or zero power.

### Claim 11 (depends on 9)

The document processing system of claim 9, where the power management component is operative in a normal operational mode and a green operational mode, and where the power management component is operative in the normal operational mode in response to the user interface receiving the first user input to perform a full initiation of all document processing components necessary to perform any user-directed document processing task.

### Claim 12 (depends on 11)

The document processing system of claim 11, where the power management component operates in one of the normal operational mode and the green operational mode according to a green mode schedule based on a current time and a current day.

### Claim 13 (depends on 12)

The document processing system of claim 12, where the user interface is operative to allow the user to set or modify the green mode schedule.

### Claim 14 (depends on 1)

The method of claim 1, wherein detecting the first user input comprises detecting actuation by a user of a button or touch screen display of a user interface.

### Claim 15 (depends on 14)

The method of claim 14, wherein prompting the user to select full or partial functionality comprises displaying a prompt screen on a display of the user interface to prompt the user to select full or partial functionality.

### Claim 16 (depends on 15)

The method of claim 15, comprising receiving the second user input by the user actuating a button or touch screen display of the user interface indicating user selection of partial functionality within the first predetermined time from the first time.