Provided is a printer system for printing a repositionable note. The system includes a printer that prints a repositionable note and a cartridge that accommodates the repositionable note and is coupled to the printer. The cartridge includes an indication unit that indicates color information previously defined for the repositionable note accommodated in the cartridge, and the printer includes a sensing unit matched with the indication unit included in the cartridge to sense color information of the repositionable note indicated by the indication unit and recognizes a color of the repositionable note accommodated in the printer and changes a Bluetooth search name according to the color of the repositionable note. The system further includes a user client that can be linked to the printer via Bluetooth and is connected to a predetermined printer by using the Bluetooth search name.

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.

To use roll paper up to a terminal end of a last printing sheet and prevent the printing sheet from dropping after printing on the last printing sheet in a printer, the last printing sheet is stopped such that a side downstream of the terminal end of the last printing sheet in a feeding direction is located at a nipping position where the printing sheet is nipped by a thermal head and a platen roller if the terminal end of the last printing sheet in the roll paper is detected.

A printing apparatus includes a printing unit that prints on a front surface of a medium, a detection unit that receives reflected light of light emitted on a back surface of the medium, and a control unit that stops printing based on a detection result of the detection unit. In a case in which a second image is to be printed on the front surface of the medium of which back surface a first image being printed, when a range in which the first image is printed on the back surface of the medium is defined as a first range and a range corresponding to the first range on the front surface of the medium is defined as a second range, when printing the second image in the second range, the control unit continues printing irrespective of the detection result of the detection unit.

A printer includes: a holding member configured to hold a roll of paper; an elastic member configured to support the holding member so that the holding member is slidable in a vertical direction; a first detection unit configured to detect a position of the holding member; and a second detection unit that detects a near-end of the roll of paper based on a detection result by the first detection unit.

A tray drawer and a multi-function printer using the same are provided. The tray drawer includes a drawer body, a tray and an indicating mechanism. The tray is disposed within the drawer body. The indicating mechanism includes an indicator and a linkage. The linkage pivotally connects the indicator and a lateral surface of a front end of the tray.

Printer circuits and components for detecting a media low condition on a printer are provided. The printer circuit comprises a motor coupled to a platen roller, a current sense resistor coupled in series with the motor, a current measuring circuit comprising an operational amplifier circuit configured to receive input voltage and output voltage of the current sense resistor, generate a differential voltage based at least in part on the input voltage and the output voltage, and convert the differential voltage to a current, and an analog-to-digital converter and control mechanism configured to receive the current from the current measuring circuit and control operation of the motor based at least in part on the current.

A thermal printer includes: a roll sheet receiving portion; and a delivery slot through which a portion of the recording sheet drawn from the roll sheet is delivered to an outside of the thermal printer; a printing unit including: a thermal head; and a platen roller configured to convey the recording sheet toward the delivery slot while sandwiching the recording sheet between the thermal head and the platen roller; a flap provided on a portion of the casing between the printing unit and the roll sheet receiving portion so as to be pivotable about a first axis, and configured to press the roll sheet in a direction of separating away from the delivery slot through abutment against an outer peripheral surface of the roll sheet; and an urging member configured to urge the flap about the first axis in the direction of separating away from the delivery slot.

Systems and method for estimating a remaining amount of a consumable resource are provided. According to one method, a first step of detecting the center of mass of a mobile printer is conducted, wherein the mobile printer comprises print media. The method may also include a step of determining a remaining print media level based on the detected center of mass.

In a printing apparatus for performing printing on labels of roll paper formed by winding a label sheet with the labels peelably attached to the label sheet, a label remaining number detecting unit, during a printing operation, determines a thickness of the label sheet from a length between the labels included in the label sheet fed out from a label sheet feed-out unit to a printing unit, the length being determined by a label length detecting unit while a distance to a cylindrical outer surface of the roll paper detected by a distance sensor.