# US 10,122,879 B2 · Image processing device, image processing system and non-transitory readable recording medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,879 B2 - Document ID: US10122879B2 - Status: Granted - Kind: B2 - Application number: 15/375,122 - Filed: 2016-12-11 - Published: 2017-06-15 - Granted: 2018-11-06 - Earliest claimed: 2015-12-10 - Assignees: Konica Minolta, Inc. - Applicants: Konica Minolta, Inc. - Inventors: Kazuya Anezaki; Atsushi Ohshima; Kenji Matsuhara; Satoshi Masuda; Daisuke Sakiyama; Takeshi Maekawa; Hironori Harada - Web page: https://patentgrep.com/patent/US10122879B2 ## CPC - H04N 1/00891: {Switching on or off, e.g. for saving power when not in use (H04N1/00896 takes precedence)} - H04N 1/00244: {with a server, e.g. an internet server (fax-servers or the like for store and forward H04N1/324)} - H04N 1/00933: {Timing control or synchronising (H04N1/00928, H04N1/00931, H04N1/00954 and H04N1/0096 take precedence)} - H04N 1/32625: {Fault detection} - H04N 1/32765: {Initiating a communication} - H04N 1/32795: {Arrangements for keeping the communication line open} - H04N 1/33384: {according to transient characteristics or state} - H04N 2201/0094: Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An image processing device that communicates with a first server and a second server includes a main controller and a power controller. The main controller establishes a connection that enables communication with the first and second servers, establishes a periodic communication with the first and second servers to maintain the connection, manages a first time interval between the periodic communication with the first server, manages a second time interval between the periodic communication with the second server, and changes one or both of the first time interval and the second time interval. The power controller stops and starts power supply to the main controller. ## Claims ### Claim 1 An image processing device that communicates with a first server and a second server, the image processing device comprising: a main controller that: establishes a connection that enables communication with the first server, and establishes a periodic communication with the first server to maintain the connection, establishes a connection that enables communication with the second server, and establishes a periodic communication with the second server to maintain the connection, manages a first time interval between the periodic communication with the first server, and manages a second time interval between the periodic communication with the second server; and a power controller that: stops power supply to the main controller if a predetermined condition is met, and starts the power supply to the main controller based on the first time interval and the second time interval, wherein the main controller changes one or both of the first time interval and the second time interval, and synchronizes a timing at which the main controller establishes the periodic communication with the first server and a timing at which the main controller establishes the periodic communication with the second server to enable the main controller to establish the periodic communication with the first and second servers at the same timing when the first time interval differs from the second time interval. ### Claim 2 (depends on 1) The image processing device according to claim 1, wherein the main controller matches the first time interval with the second time interval when the first time interval is shorter than the second time interval. ### Claim 3 (depends on 2) The image processing device according to claim 2, wherein the main controller decreases the first time interval and the second time interval if an error notice is received by the main controller when the power supply to the main controller is restarted based on the first time interval and the second time interval, and the main controller establishes the periodic communication with the respective first and second servers after the first time interval is matched with the second time interval. ### Claim 4 (depends on 1) The image processing device according to claim 1, wherein the main controller matches the second time interval with the first time interval when the second time interval is longer than the first time interval. ### Claim 5 (depends on 4) The image processing device according to claim 4, wherein the main controller extends the first time interval and the second time interval if a time change request is received by the main controller from the second server when the power supply to the main controller is restarted based on the first time interval and the second time interval, and the main controller establishes the periodic communication with the first and second servers after the second time interval is matched with the first time interval. ### Claim 6 (depends on 1) The image processing device according to claim 1, wherein the main controller matches another time interval with one of the first and second time intervals if one of the first or second time interval is not allowed to change. ### Claim 7 (depends on 1) The image processing device according to claim 1, wherein the main controller changes one of the first or second time interval to N times or one-Nth times another time interval when the first time interval and the second time interval are not allowed to match each other. ### Claim 8 An image processing system comprising: a first server; a second server; and an image processing device that communicates with the first server and the second server, wherein each of the first and second servers includes: a communication controller that establishes a connection that enables communication with the image processing device in response to a connection request from the image processing device and maintains the connection with the image processing device by receiving a periodic communication from the image processing device, and terminates the connection if a predetermined period of time has elapsed without receiving the periodic communication from the image processing device, the image processing device includes: a main controller that: establishes a connection that enables the communication with the first server by sending a connection request to the first server, and establishes the periodic communication with the first server to maintain the connection, establishes a connection that enables the communication with the second server by sending a connection request to the second server, and establishes the periodic communication with the second server to maintain the connection, manages a first time interval between the periodic communication with the first server, and manages a second time interval between the periodic communication with the second server; and a power controller that stops power supply to the main controller if a predetermined condition is met, and restarts the power supply to the main controller based on the first time interval and the second time interval, and the main controller changes one or both of the first time interval and the second time interval and synchronizes a timing at which the main controller establishes the periodic communication with the first server and a timing at which the main controller establishes the periodic communication with the second server to enable the main controller to establish the periodic communication with the first and second servers at the same timing when the first time interval differs from the second time interval. ### Claim 9 (depends on 8) The image processing system according to claim 8, wherein the main controller matches the first time interval with the second time interval when the first time interval is shorter than the second time interval. ### Claim 10 (depends on 9) The image processing system according to claim 9, wherein each of the communication controllers of the first and second servers: sends an error notice when the periodic communication is received from the image processing device after the connection with the image processing device is terminated, and decreases the first time interval and the second time interval if the error notice is received by the main controller of the image processing device when the power supply to the main controller is restarted based on the first time interval and the second time interval, and wherein the main controller establishes the periodic communication with the first and second servers after the first time interval is matched with the second time interval. ### Claim 11 (depends on 8) The image processing system according to claim 8, wherein the main controller matches the second time interval with the first time interval when the second time interval is longer than the first time interval. ### Claim 12 (depends on 11) The image processing system according to claim 11, wherein the communication controller of the second server sends a time change request to the image processing device to change the time interval between the periodic communication if a value of the interval from a receipt of the previous periodic communication to the receipt of the current periodic communication exceeds a predetermined minimum value when the periodic communication is received from the image processing device before the predetermined period of time has elapsed, and the main controller of the image processing device extends the first time interval and the second time interval if the time change request is received by the main controller from the second server when the power supply to the main controller is restarted based on the first time interval and the second time interval and the main controller establishes the periodic communication with the first and second servers after the second time interval is matched with the first time interval. ### Claim 13 (depends on 8) The image processing system according to claim 8, wherein the main controller matches another time interval with one of the first and second time intervals if one of the time intervals is not allowed to change. ### Claim 14 (depends on 8) The image processing system according to claim 8, wherein the main controller changes one of the first or second time interval to N times or one-Nth times another time interval when the first time interval and the second time interval are not allowed to match each other. ### Claim 15 A non-transitory computer readable recording medium storing a program to be executed by an image processing device that communicates with a first server and a second server, the image processing device including a main controller, wherein execution of the program by the image processing device causes the image processing device to execute a process comprising: establishing: a connection that enables communication with the first server, a periodic communication with the first server to maintain the connection, a connection that enables communication with the second server, and a periodic communication with the second server to maintain the connection; managing a first time interval between the periodic communication with the first server and a second time interval between the periodic communication with the second server; stopping power supply to the main controller if a predetermined condition is met, and restart the power supply to the main controller based on the first time interval and the second time interval; determining whether the first time interval between the periodic communication with the first server by the main controller is different from the second time interval between the periodic communication with the second server by the main controller; changing one or both of the first time interval and the second time interval and synchronizing a timing at which the main controller establishes the periodic communication with the first server and a timing at which the main controller establishes the periodic communication with the second server to enable the main controller to establish the periodic communication with the first and second servers at the same timing when a determination is made that the first time interval differs from the second time interval; and enabling the power controller to restart the power supply to the main controller based on the one or both of the first time interval and the second time interval that were changed. ### Claim 16 (depends on 15) The non-transitory computer readable recording medium according to claim 15, wherein the first time interval is matched with the second time interval when the first time interval is shorter than the second time interval. ### Claim 17 (depends on 16) The non-transitory computer readable recording medium according to claim 16, wherein the first time interval and the second time interval are decreased if an error notice is received by the main controller when the power supply to the main controller is restarted based on the first time interval and the second time interval and the main controller establishes the periodic communication with the first and second servers after the first time interval is matched with the second time interval. ### Claim 18 (depends on 15) The non-transitory computer readable recording medium according to claim 15, wherein the second time interval is matched with the first time interval when the second time interval is longer than the first time interval. ### Claim 19 (depends on 18) The non-transitory computer readable recording medium according to claim 18, wherein the first time interval and the second time interval are extended if a time change request is received by the main controller from the second server when the power supply to the main controller is restarted based on the first time interval and the second time interval, and the main controller establishes the periodic communication with the first and second servers after the second time interval is matched with the first time interval. ### Claim 20 (depends on 15) The non-transitory computer readable recording medium according to claim 15, wherein another time interval is matched with one of the first and second time intervals if one of the time intervals is not allowed to change. ### Claim 21 (depends on 15) The non-transitory computer readable recording medium according to claim 15, wherein one of the first or second time interval is changed to N times or one-Nth times another time interval when the first time interval and the second time interval are not allowed to match each other.