The disclosure discloses a printer including a CPU that executes a detection process, a first determination process, and a first mode switching process. In the detection process, a type of a storage body is detected. In the first determination process, it is determined on the basis of a detection result whether the type of the storage body attached to the attaching part is a first type in an ordering state associated with insufficiency in quantity or a second type other than the first type. In the first mode switching process a control mode is switched from a normal mode prepared in advance correspondingly to the second type to a medium-saving mode prepared in advance correspondingly to the first type for reducing a consumption amount of the print-receiving medium than the normal mode, in the case that the type is determined as the first type.

An information processing apparatus includes a hardware processor. The hardware processor executes an firmware of a first version, acquires a set of firmware of a second version and verification state information that indicates progress of verification of each of a plurality of processes defined by the firmware of the second version from a server, and updates the firmware of the first version with the firmware of the second version. The verification state information includes a completed state where the verification of a non-occurrence of an error is completed and an unverified state where the verification of the non-occurrence of an error is not completed, and the hardware professor sets a settability state of an unverified process out of the plurality of processes to a disabled state where a user cannot make settings to allow execution of the unverified process.

A Toner Saver Feature (TSF) that enables adjustments in toner throughputs thus enhancing a user's control on toner consumption and thereby increasing life of cartridges in printing devices is disclosed. The disclosed TSF is configured to change throughput for each of the plurality of colorants based on at least one Preset Colorant Saver Configuration (Preset) that contains a set of Throughput Rate Reduction (TRR) values for each colorant, and wherein the at least one preset colorant saver configuration is user configurable. TSF enables a user to change the set of TRR values for each of the plurality of colorants individually through a user interface, and save the changed values as one of the Presets. The reduction values get implemented in all modes of printing wherein factory set throughput rates for the current mode get further reduced based on the selected Preset.

A server includes memory storing management information including: first correspondence information representing correspondence between an output format for printing process and price for the printing process based on the output format; and second correspondence information representing correspondence between an account information of a user and balance spendable by the user and a controller configured to perform: receiving a printing request using an account information item; determining whether an object price is equal to or less than an object balance; if the object price is more than the object balance, extracting candidate output format that is different from the object output format and usable to perform a printing process based on the printing request within the object balance, with reference to the first correspondence information; and transmitting information representing the extracted candidate output format to an external device.

An image forming apparatus is operable in a first mode in which a job can be processed at a first printing speed and a second mode in which the job can be processed at a second printing speed faster than the first printing speed, and receives a reservation of a period in which the image forming apparatus will operate in the second mode, and controls the image forming apparatus to operate in the second mode rather than the first mode in accordance with the reservation.