In a client machine that collects first data that is operation information of an apparatus and second data related to a use situation of a plurality of pieces of hardware including a processor, a memory, and a storage, control is performed so that, in a case where the client machine is in a power-saving state at a timing when data that is collected in the apparatus is transmitted to an external system, recovery from the power-saving state is performed and transmission of the first data is not restricted, and transmission of the second data is restricted, and in a case where the client machine is not in the power-saving state at the timing, the transmission of the first data and the transmission of the second data are not restricted.

An image forming apparatus forms an image on a recording medium in a first operating mode. The image forming apparatus includes a detector, a determining section, a judging section, and a regulating section. The detector detects a detection target. The determining section determines, based on a detection result of the detector, to maintain a second operating mode in which power consumption is less than in the first operating mode. The judging section judges whether or not determination by the determining section is erroneous. The regulating section regulates, based on a judgement result of the judging section, the determination by the determining section of maintaining the second operating mode.

A control device that controls an image former, includes: a second power supply that performs power feeding to a detector during a power feeding suspension period during which power feeding from a first power supply to the image former and the detector is not performed, the detector detecting an environment variable around the image former, the environment variable affecting quality of an image formed by the image former; and a determiner that determines a control condition for the image former in accordance with a result of detection performed by the detector during the power feeding suspension period, when power feeding from the first power supply to the image former is started at an end of the power feeding suspension period and the image former enters an image formation ready state in which the image former can perform image formation.

An image forming apparatus has a power supply portion, an operation panel, a document set portion, a plurality of sensing portions including a document set sensing portion that outputs a document set signal at a first level if the document is set, and control portions. The control portions, at transition to the power saving mode, stores flag data if the document set signal is at the first level, and when the level of any of the status signals from the plurality of sensing portions changes while in the power saving mode, even if the level of the document set signal is the first level, if the flag data is stored, the control portion maintains the electric power supply to the operation panel as the electric power supply expected in the power saving mode.

Example implementations relate to data connection printing. For example, a printing device may include a wireless data connection and a wired data connection. The printing device may include an engine controller including a processing resource and a memory resource coupled to the processing resource, where the memory resource stores instructions executable by the processing resource to determine whether a print job is received via the wireless data connection or the wired data connection and based on the determination, print the print job in a print mode corresponding to either the wireless data connection or the wired data connection.

An image processing apparatus is provided with a main controller unit that comprehensively controls the image processing apparatus, and a microcomputer that controls a load. During a period in which the image processing apparatus transitions from a first power mode to a second power mode having lower power consumption than the first power mode, the main controller unit prohibits acceptance of an interrupt signal, and cancels the prohibition of interrupts when the transition to the second power mode completes. Meanwhile, when an interrupt signal is generated from the load during the transition period, the microcomputer repeatedly notifies the interrupt signal as a pulse signal to the main controller unit, and notifies by changing the pulse signal to a level signal when prohibition of interrupts is cancelled.

The switching power supply apparatus including a transformer includes a detection unit configured to detect that the power supply apparatus malfunctions and a first holding unit configured to turn off a first switching element and holds the first switching element at turn-off condition, and when the detection unit detects that malfunction occurs, the first holding unit releases the first switching element from the turn-off condition at a timing when the control unit turns on the second switching element by a second control signal.

An image forming apparatus capable of switching power state between a first power state and a second power state, which is lower in power than the first power state, shifts from the second power state to the first power state. In a case where the image forming apparatus shifts to the second power state in response to a current time reaching a set time, the image forming apparatus is controlled not to shift from the second power state to the first power state in response to an object approaching the image forming apparatus being detected.

An image reading apparatus, comprising a memory that can transition from a normal mode to a power saving mode based on an inputted control signal, and a control unit that controls the control signal based on a synchronization signal that indicates a timing at which an image processing module outputs image data to a reading unit or a print unit.

An image processing apparatus includes an image-data processor, an interface, a power source, and a controller. The controller selects a first mode, a second mode, or a third mode as a power supply mode. In the first mode, electric power is supplied from the power source to the image-data processor and the interface. In the second mode, supply of the electric power from the power source to the image-data processor and the interface is in a stopped state. In the third mode, the electric power is supplied from the power source to the interface, but supply of the electric power to the image-data processor is in a stopped state. The controller switches the power supply mode from the second mode to the third mode in response to receiving a power supply request from an external device via the interface in the second mode.