An operation switch press erroneous-detection avoidance device, if an operation on an operation switch is performed by an approaching object to the operation switch, in a case where the operation on the operation switch is detected during a period when an event which occurs in association with the operation on the operation switch occurs, prohibits a process associated with the operation switch from being activated.

A content control device includes: a plurality of controls to which a plurality of parameters for controlling properties of a content containing at least one of sound and video are respectively assigned, each of the plurality of controls outputting a first indicated value in accordance with an operation amount of the control; and a processor configured to previously create setting information used to determine respective values of the plurality of parameters in accordance with the second indicated value; determine the values of the plurality of parameters corresponding to the second indicated value respectively in accordance with the second indicated value and the setting information; and revise each of the values of the parameters to be determined in accordance with the first indicated value outputted for the control assigned to the parameter.

A content control device includes: a plurality of controls to which a plurality of parameters for controlling properties of a content containing at least one of sound and video are respectively assigned, each of the plurality of controls outputting a first indicated value in accordance with an operation amount of the control; and a processor configured to previously create setting information used to determine respective values of the plurality of parameters in accordance with the second indicated value; determine the values of the plurality of parameters corresponding to the second indicated value respectively in accordance with the second indicated value and the setting information; and revise each of the values of the parameters to be determined in accordance with the first indicated value outputted for the control assigned to the parameter.

The processor of a printer prints a setting value settable in a setting item of one in which a setting value is set on a print medium on the basis of input to an input section in a setting mode for setting a setting value in the setting item of one. If the first setting value of the setting item of one is stored in a memory, the processor causes a printing mechanism to print a first image in association with the setting value corresponding to the first setting value of the setting item of one out of the setting values to be printed. If the first setting value is not stored, the processor causes the printing mechanism to print the first image in association with the setting value corresponding to a second setting value of the setting item of one out of the setting values to be printed.

A printing device includes: a case covering a printing mechanism; and an electrostatic touch panel provided at the case. The touch panel is provided at an angle from horizontal. At a bottom side of the touch panel, a wall for stopping a touch pen rolling down a surface of the touch panel is provided.