An image forming apparatus includes an image forming unit, an output unit, a light source, and a processor. The image forming unit creates a printed material by forming an image on paper. The output unit outputs the printed material to an output tray. The light source is provided such that lit light is viewable from outside the image forming apparatus. The processor is configured to receive a print job for creating the printed material by the image forming unit, and perform control such that the light source is lit in a first lighting pattern in a case where a printed material of a print job for a single user has been output to the output tray and the light source is lit in a second lighting pattern in a case where printed materials of print jobs for multiple users have been output to the output tray.

An image reading apparatus includes a manuscript reader, a communication device, a distance determination device, a manuscript leaving determination device, a controller, and an approaching person determination device. The manuscript leaving determination device determines whether a manuscript is left in the image reading apparatus. The communication device performs wireless communication with a portable device carried by a user. The approaching person determination device determines presence and absence of a person approaching the image reading apparatus. The controller transmits, to the portable device, warning information indicating a risk of information leakage when the distance determination device determines that a distance between the image reading device and the portable device has reached a predetermined first threshold value and the approaching person determination device determines that there is an approaching person in a state in which the manuscript leaving determination device has determined that a manuscript is left in the image reading apparatus.

An image forming apparatus includes an operating key, an illuminance sensor, and a controller. The operating key contains a lamp. The illuminance sensor detects an ambient illuminance. The controller controls turning on and off of the lamp. The operating key functions as a first trigger for return from a power-saving mode to a normal mode. The controller turns the lamp off when the ambient illuminance detected by the illuminance sensor in the power-saving mode is equal to or more than a first threshold value, and the controller turns the lamp on when the ambient illuminance detected by the illuminance sensor in the power-saving mode is less than the first threshold value.

An information processing apparatus includes a first substrate, a second substrate, a communication line configured to communicably connect the first substrate and the second substrate, wherein the first substrate transmits predetermined information to the second substrate via the communication line, and the second substrate transmits a response to the predetermined information to the first substrate via the communication line. The information processing apparatus further includes a first notification unit configured to provide a notification of a reception result of the predetermined information transmitted from the first substrate, and a second notification unit configured to provide a notification of a reception result of the response to the predetermined information that is transmitted from the second substrate.

A system and method for easily managing a data center with multiple computing devices such as cryptocurrency miners from different manufactures is disclosed. A first computer includes a management application to manage the selected computing devices and periodically read and store status information from them into a database. Controls are presented to enable selection of one or more of the devices and to apply an operating mode, including manual, semi-automatic, automatic, and intelligent modes. Machine learning may be used to determine recommended settings for the selected set of computing devices.

A system and method for managing large numbers of computing devices such as cryptocurrency miners in a data center are disclosed. A three-dimensional (3D) model of the data center is created using machine-readable codes. The 3D model includes device and bin location information. Status data is captured from the computing devices, associated with location, stored in a database, and used to populate the 3D model, which is rendered in various two-dimensional and 3D views to provide the user with information helpful in managing the data center.

An information processing method, apparatus, and non-transitory recording medium storing instructions for executing an information processing method. The information processing method, performed by a computer connectable to a terminal via a network, includes determining a status of a device based on a first image of the device transmitted from the terminal, specifying a solution for a problem occurring in the device based on the status of the device, displaying a first message on the terminal to indicate the specified solution, displaying a second message on the terminal to request a second image obtained by photographing a specified part of the device or the device in a specified state, updating the status of the device based on the second image, specifying the solution for the problem in accordance with the updated status of the device, and displaying a third message on the terminal to indicate the specified solution for the problem.

A document feeder includes an input tray (part of a document placing portion) on which a document is placed, an output tray on which the document output from a document output port in an output direction is stacked, and a substrate including a light source that emits light to the output tray. The output tray is disposed below the input tray. The substrate is fixed to the document placing portion at an oblique angle relative to a horizontal reference of the document feeder such that the optical axis of the light source extends toward the document output port.

An image printing apparatus, which displays a two-dimensional code, includes: a display device; a two-dimensional code key configured to receive an operation from a user; and an LED equipped separately from the display device and configured to provide a predetermined notification separately from a screen displayed by the display device. A CPU is configured to control the display device to display a predetermined screen and the LED is configured to provide the predetermined notification based on a case where a predetermined condition for changing a screen displayed by the display unit is satisfied, and the CPU is configured to control the display unit to display the predetermined code in a case where the operation is received by the two-dimensional code key from the user while the predetermined screen is being displayed by the display device and the predetermined notification is being provided by the LED.

A communication terminal communicates with an image forming apparatus to be moved on a medium to perform image formation. The communication terminal includes a display and circuitry configured to receive a notification from the image forming apparatus and to display a preview of an image to be formed by the image forming apparatus. The circuitry is further configured to distinguish, on the preview, one of a plurality of lines included in the image to be formed from a rest of the plurality of lines in accordance with a content of the notification and display operation aiding information for aiding an operation of the image forming apparatus in accordance with the content of the notification.