# US 10,310,425 B2 · Image forming apparatus, method for controlling image forming apparatus, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,425 B2 - Document ID: US10310425B2 - Status: Granted - Kind: B2 - Application number: 15/218,864 - Filed: 2016-07-25 - Published: 2016-11-17 - Granted: 2019-06-04 - Earliest claimed: 2013-06-21 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Ryotaro Okuzono - Web page: https://patentgrep.com/patent/US10310425B2 ## CPC - G03G 15/5004: {Power supply control, e.g. power-saving mode, automatic power turn-off} - G03G 15/5091: {for user-identification or authorisation} - G03G 21/06: Eliminating residual charges from a reusable imaging member - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract An image forming apparatus includes a detection unit configured to detect an object and a power-supply control unit. The power-supply control unit shifts the image forming apparatus to a second power state, in response to a lapse of a predetermined time following no detection of the object, when a job has not been executed until the detection unit detects no object, after the power-supply control unit shifts the image forming apparatus to the first power state. The power-supply control unit shifts the image forming apparatus to the second power state before a lapse of the predetermined time, when a job has been executed until the detection unit detects no object, after the power-supply control unit shifts the image forming apparatus to the first power state. ## Claims ### Claim 1 A processing apparatus comprising: a detection unit configured to detect a human; an operation unit to be operated by an operator; and a power-supply control unit configured to supply power to a predetermined device based on detection of a human by the detection unit, and to stop supplying power to the predetermined device based on no detection of a human by the detection unit, wherein in a case where the operation unit is operated, the power-supply control unit does not stop supplying power to the predetermined device based on no detection of a human by the detection unit and stops supplying power to the predetermined device when a predetermined time elapses after the operation unit is operated. ### Claim 2 (depends on 1) The processing apparatus according to claim 1, wherein in a case where the operation unit is operated, the power-supply control unit is configured to stop supplying power to the predetermined device when a predetermined time elapses after the operation unit is operated while the detection unit detects a human. ### Claim 3 (depends on 1) The processing apparatus according to claim 1, further comprising: a receiving unit configured to receive a predetermined user operation, wherein the power-supply control unit supplies power to the predetermined device based on the predetermined user operation received by the receiving unit, and wherein in a case where the receiving unit receives the predetermined user operation, the power-supply control does not stop supplying power to the predetermined device based on no detection of a human by the detection unit stops supplying power to the predetermined device when a predetermined time elapses after the operation unit is operated. ### Claim 4 (depends on 3) The processing apparatus according to claim 3, wherein the receiving unit is a power-saving mode release button for releasing a power-saving mode. ### Claim 5 (depends on 1) The processing apparatus according to claim 1, wherein the detection unit is a pyroelectric sensor. ### Claim 6 (depends on 1) The processing apparatus according to claim 1, wherein the detection unit is an infrared-ray sensor configured to receive an infrared ray. ### Claim 7 (depends on 1) The processing apparatus according to claim 1, wherein the detection unit is an infrared-ray sensor configured to output an infrared ray and receive an infrared ray. ### Claim 8 (depends on 1) The processing apparatus according to claim 1, wherein the detection unit is a detection unit configured to detect movement of a human. ### Claim 9 (depends on 1) The processing apparatus according to claim 1, wherein the detection unit is a detection unit configured to detect presence of a human. ### Claim 10 (depends on 1) The processing apparatus according to claim 1, wherein the operation unit includes a display unit and a receiving unit configured to receive an operator's operation. ### Claim 11 (depends on 1) The processing apparatus according to claim 1, further comprising a display unit, wherein the predetermined device is the display unit. ### Claim 12 (depends on 11) The processing apparatus according to claim 11, wherein the display unit is a liquid crystal panel. ### Claim 13 (depends on 1) The processing apparatus according to claim 1, further comprising a print unit configured to execute a printing operation. ### Claim 14 (depends on 1) The processing apparatus according to claim 1, further comprising a scanner configured to execute a scanning operation. ### Claim 15 A power control method for a processing apparatus including a detection unit configured to detect a human and an operation unit to be operated by an operator, the power control method comprising: supplying power to a predetermined device based on detection of a human by the detection unit; shutting off power supplied to the predetermined device based on no detection of a human by the detection unit; and not performing the shutting off power supplied to the predetermined device based on no detection of a human by the detection unit and shutting off power supplied to the predetermined device when a predetermined time elapses after the operation unit is operated, in a case where the operation unit is operated. ### Claim 16 (depends on 15) The power control method according to claim 15, wherein the shutting off power supplied to the predetermined device when the predetermined time elapses after the operation unit is operated in the case where the operation unit is operated is shutting off power supplied to the predetermined device when the predetermined time elapses after the operation unit is operated while the detection unit detects a human in a case where the operation unit is operated. ### Claim 17 (depends on 15) The power control method according to claim 15, wherein the processing apparatus includes a receiving unit configured to receive a predetermined user operation, and wherein the power control method further comprises: supplying power to the predetermined device based on the predetermined user operation received by the receiving unit; and not performing the shutting off power supplied to the predetermined device based on no detection of a human by the detection unit and shutting off power supplied to the predetermined device when the predetermined time elapses after the operation unit is operated, in a case where the receiving unit receives the predetermined user operation. ### Claim 18 (depends on 17) The power control method according to claim 17, wherein the receiving unit is a power-saving mode release button for releasing a power-saving mode. ### Claim 19 (depends on 15) The power control method according to claim 15, wherein the detection unit is a pyroelectric sensor. ### Claim 20 (depends on 15) The power control method according to claim 15, wherein the detection unit is an infrared-ray sensor configured to receive an infrared ray. ### Claim 21 (depends on 15) The power control method according to claim 15, wherein the detection unit is an infrared-ray sensor configured to output an infrared ray and receive an infrared ray. ### Claim 22 (depends on 15) The power control method according to claim 15, wherein the detection unit is a detection unit configured to detect movement of a human. ### Claim 23 (depends on 15) The power control method according to claim 15, wherein the detection unit is a detection unit configured to detect presence of a human. ### Claim 24 (depends on 15) The power control method according to claim 15, wherein the operation unit includes a display unit and a receiving unit configured to receive an operator's operation. ### Claim 25 (depends on 15) The power control method according to claim 15, wherein the processing apparatus further includes a display unit, and wherein the predetermined device is the display unit. ### Claim 26 (depends on 25) The power control method according to claim 25, wherein the display unit is a liquid crystal panel. ### Claim 27 (depends on 15) The power control method according to claim 15, further comprising executing a printing operation. ### Claim 28 (depends on 15) The power control method according to claim 15, further comprising executing a scanning operation. ### Claim 29 A processing apparatus comprising: a detection unit configured to detect a human; an operation unit to be operated by an operator; and a power-supply control unit configured to supply power to a predetermined device based on detection of a human by the detection unit, and to stop supplying power to the predetermined device based on a lapse of a predetermined time after the operation unit is operated, wherein in a case where there is no detection of a human by the detection unit without operating the operation unit after the detection of a human by the detection unit, the power-supply control unit stops supplying power to the predetermined device based on the no detection of a human by the detection unit. ### Claim 30 (depends on 29) The processing apparatus according to claim 29, further comprising: a receiving unit configured to receive a predetermined user operation, wherein the power-supply control unit supplies power to the predetermined device based on the predetermined user operation received by the receiving unit, and wherein in a case where there is no detection of a human by the detection unit without operating the operation unit after the predetermined user operation is received the receiving unit, the power-supply control unit stops supplying power to the predetermined device based on the no detection of a human by the detection unit. ### Claim 31 (depends on 30) The processing apparatus according to claim 30, wherein the receiving unit is a power-saving mode release button for releasing a power-saving mode. ### Claim 32 (depends on 29) The processing apparatus according to claim 29, wherein the detection unit is a pyroelectric sensor. ### Claim 33 (depends on 29) The processing apparatus according to claim 29, wherein the detection unit is an infrared-ray sensor configured to receive an infrared ray. ### Claim 34 (depends on 29) The processing apparatus according to claim 29, wherein the detection unit is an infrared-ray sensor configured to output an infrared ray and receive an infrared ray. ### Claim 35 (depends on 29) The processing apparatus according to claim 29, wherein the detection unit is a detection unit configured to detect movement of a human. ### Claim 36 (depends on 29) The processing apparatus according to claim 29, wherein the detection unit is a detection unit configured to detect presence of a human. ### Claim 37 (depends on 29) The processing apparatus according to claim 29, wherein the operation unit includes a display unit and a receiving unit configured to receive an operator's operation. ### Claim 38 (depends on 29) The processing apparatus according to claim 29, further comprising a display unit, wherein the predetermined device is the display unit. ### Claim 39 (depends on 38) The processing apparatus according to claim 38, wherein the display unit is a liquid crystal panel. ### Claim 40 (depends on 29) The processing apparatus according to claim 29, further comprising a print unit configured to execute a printing operation. ### Claim 41 (depends on 29) The processing apparatus according to claim 29, further comprising a scanner configured to execute a scanning operation. ### Claim 42 A power control method for a processing apparatus including a detection unit configured to detect a human and an operation unit to be operated by an operator, the power control method comprising: supplying power to a predetermined device based on detection of a human by the detection unit; shutting off power supplied to the predetermined device based on a lapse of a predetermined time after the operation unit is operated; and in a case where there is no detection of a human by the detection unit without operating the operation unit after the detection of a human by the detection unit, power supplied to the predetermined device is shut off based on the no detection of a human by the detection unit. ### Claim 43 (depends on 42) The power control method according to claim 42, wherein the processing apparatus includes a receiving unit configured to receive a predetermined user operation, and wherein the power control method further comprises: supplying power to the predetermined device based on the predetermined user operation received by the receiving unit; and in a case where there is no detection of a human by the detection unit without operating the operation unit after the predetermined user operation is received by the receiving unit, power supplied to the predetermined device is shut off based on the no detection of a human by the detection unit. ### Claim 44 (depends on 43) The power control method according to claim 43, wherein the receiving unit is a power-saving mode release button for releasing a power-saving mode. ### Claim 45 (depends on 42) The power control method according to claim 42, wherein the detection unit is a pyroelectric sensor. ### Claim 46 (depends on 42) The power control method according to claim 42, wherein the detection unit is an infrared-ray sensor configured to receive an infrared ray. ### Claim 47 (depends on 42) The power control method according to claim 42, wherein the detection unit is an infrared-ray sensor configured to output an infrared ray and receive an infrared ray. ### Claim 48 (depends on 42) The power control method according to claim 42, wherein the detection unit is a detection unit configured to detect movement of a human. ### Claim 49 (depends on 42) The power control method according to claim 42, wherein the detection unit is a detection unit configured to detect presence of a human. ### Claim 50 (depends on 42) The power control method according to claim 42, wherein the operation unit includes a display unit and a receiving unit configured to receive an operator's operation. ### Claim 51 (depends on 42) The power control method according to claim 42, wherein the processing apparatus further includes a display unit, and wherein the predetermined device is the display unit. ### Claim 52 (depends on 51) The power control method according to claim 51, wherein the display unit is a liquid crystal panel. ### Claim 53 (depends on 42) The power control method according to claim 42, further comprising executing a printing operation. ### Claim 54 (depends on 42) The power control method according to claim 42, further comprising executing a scanning operation.