A method includes receiving, via a microphone at a printer, a voice command based on a tag of an indexed document. The method further includes digitizing the voice command. The method further includes retrieving a supplemental document based on the digitized voice command. The method further includes printing the supplemental document at the printer.

A method includes receiving, via a microphone at a printer, a voice command based on a tag of an indexed document. The method further includes digitizing the voice command. The method further includes retrieving a supplemental document based on the digitized voice command. The method further includes printing the supplemental document at the printer.

An image forming apparatus includes: a receiver that receives a manual input instruction via an operation device and a voice instruction via a microphone; and a controller that executes a job on the basis of setting received by the receiver. The controller performs switching between a manual input dedicated mode in which only a manual input instruction is received by the receiver and a voice input possible mode in which a voice input and a manual input instruction are received by the receiver, and when an operation screen for receiving an input of information, an input of which through a voice instruction is prohibited in advance, is displayed on a display device by a display controller, the controller performs switching to the manual input dedicated mode.

An image forming apparatus includes: a receiver that receives a manual input instruction via an operation device and a voice instruction via a microphone; and a controller that executes a job on the basis of setting received by the receiver. The controller performs switching between a manual input dedicated mode in which only a manual input instruction is received by the receiver and a voice input possible mode in which a voice input and a manual input instruction are received by the receiver, and when an operation screen for receiving an input of information, an input of which through a voice instruction is prohibited in advance, is displayed on a display device by a display controller, the controller performs switching to the manual input dedicated mode.