Abstract: An air purifier includes a housing, a first blower, a second blower, and a filter. The housing has a cavity inside, an inlet and an outlet. The first blower has a first fan in the housing. The second blower has a second fan in the housing. The second blower faces the first blower in an opposing direction. The inlet is located between the first blower and the second blower in the opposing direction. The inlet opens in a direction intersecting the opposing direction. The first fan of the first blower and the second fan of the second blower generate airflow such that air flows into the cavity through the inlet, and flows from the cavity through the filter to the outlet.

Abstract: A management server receives, from a terminal device, authentication information of a target user and first relationship information related to a target printer. In response to transmission of the authentication information to a purchase server, the management server receives, from the purchase server, M number of pieces of color-material identification information identifying M number of types of color material that have been previously purchased by the target user. The management server extracts, from among the M number of pieces of color-material identification information, N number of pieces of color-material identification information, identifying N number of types of color material, by using the first relationship information. The management server transmits, to the terminal device, second relationship information for controlling the terminal device to display a screen used for purchasing at least one type of color material from among the N number of types of color material.

Abstract: A management server receives, from a terminal device, authentication information of a target user and first relationship information related to a target printer. In response to transmission of the authentication information to a purchase server, the management server receives, from the purchase server, M number of pieces of color-material identification information identifying M number of types of color material that have been previously purchased by the target user. The management server extracts, from among the M number of pieces of color-material identification information, N number of pieces of color-material identification information, identifying N number of types of color material, by using the first relationship information. The management server transmits, to the terminal device, second relationship information for controlling the terminal device to display a screen used for purchasing at least one type of color material from among the N number of types of color material.

Abstract: A display terminal includes a nonvolatile display device and a power-off control device. The display device has a display region and holds display in the display region even if a supply of power from a power source is cut off. The power-off control device updates only the display in a partial display region, which is a part of the display region, with display of notification information indicating that the power supply has been cut off. The power-off control device also performs processing to cut off the supply of power from the power source to the display terminal.

Abstract: A portable display device transitions between a first and second state. The device has a display portion, a power source for supplying power in the first state and supplying less power in the second state than in the first state, a controller that drives the display portion, an operation portion that executes commands, and a mode storage portion that stores one of a first and second mode. The first mode corresponds to displaying preset information, and the second mode corresponds to particular information to be continuously displayed. The particular information is information displayed in the display portion when the device is in the first state. When the device is in the second state, the preset information is displayed in the display portion when the first mode is stored in the mode storage portion, and the particular information is continuously displayed when the second mode is stored in the mode storage portion.

Abstract: A display device and a computer readable storage medium recording a program which can increase variations in information displayed in a power-source OFF state are provided. The display device includes: a non-volatile display part which is configured to maintain a display even when the supply of electricity from a power source is cut off; and an information storage part which is configured to store content information which contains information to be displayed on the non-volatile display part and additional information to be added to the content information. The display device is configured to display the additional information on the non-volatile display part when the display device is shifted from a power-source ON state to a power-source OFF state.

Abstract: A display device includes a display unit, an information acquisition unit, and a display control unit. The information acquisition unit acquires list information containing title information on a plurality of data files or information corresponding to the title information. The display control unit displays a title list which is a list of the title information on the data files on the display unit based on the list information acquired by the information acquisition unit. In the display device, the list information contains information on security setting for every data file. The display control unit, in displaying the title list on the display unit, displays predetermined information in place of the title information based on the information on security setting with respect to the data file to which security setting is given.

Abstract: A display apparatus includes a reading and display device configured to read contents selected based on instructions from a nonvolatile portable storage device that can rewrite storage content and is removable, and to cause a display device to display the contents; a display switching device configured to switch a page of the contents being displayed by the display device based on the instructions; and a storage control device configured to cause the portable storage device to store display page information indicating the page displayed immediately before an end of a display of the selected contents, in correspondence with the contents, at a predetermined timing. The reading and display device reads the display page information corresponding to the selected contents from the portable storage device, and causes the display device to display the page indicated by the display page information.

Abstract: A portable display device transitions between a first and second state. The device has a display portion, a power source for supplying power in the first state and supplying less power in the second state than in the first state, a controller that drives the display portion, an operation portion that executes commands, and a mode storage portion that stores one of a first and second mode. The first mode corresponds to displaying preset information, and the second mode corresponds to particular information to be continuously displayed. The particular information is information displayed in the display portion when the device is in the first state. When the device is in the second state, the preset information is displayed in the display portion when the first mode is stored in the mode storage portion, and the particular information is continuously displayed when the second mode is stored in the mode storage portion.

Abstract: A portable display device transitions between a first state and a second state. The portable display device includes a display portion that displays information when the portable display device is in the first and second state, and a power source for supplying power when the portable display device is in the first state, and supplying less power when the portable display device is in the second state than in the first state. The portable display device also includes a controller that drives the display portion to display information in the display portion, an operation device that executes at least one command in response to receipt of at least one operation, and a storage portion that stores information to be displayed in the display portion when the portable display device is in the second state. The controller displays the information stored in the storage portion, when the portable display device is in the second state.

Abstract: A portable display device transitions between a first state and a second state, and includes a display portion to display information in the first state and to display particular information in the second state, a power source that supplies power in the first state, and supplies less power in the second state than in the first state, and a controller that drives the display portion to display information in the display portion. The controller replaces the particular information displayed in the display portion with a further information different from the information displayed in the display portion, by transitioning the portable display device from the second state to the first state, and back to the second state, at a predetermined timing.

Abstract: A display terminal includes a nonvolatile display device and a power-off control device. The display device has a display region and holds display in the display region even if a supply of power from a power source is cut off. The power-off control device updates only the display in a partial display region, which is a part of the display region, with display of notification information indicating that the power supply has been cut off. The power-off control device also performs processing to cut off the supply of power from the power source to the display terminal.

Abstract: A CPU unit comprising a microprocessor for controlling a controlled system according to a stored sequence program and predetermined data, and a memory area where the sequence program and predetermined data are stored and a second sequence predetermined data both used by a preset operation proxy controlled unit are stored, wherein when the microprocessor detects an abnormality of the operation proxy controlled unit, the microprocessor controls the operation proxy controlled unit according to the second sequence program and second predetermined data after the microprocessor ends the predetermined processings of the unit.