A main body portion provided with a document stand on which a document is placed and a reading unit; a cover which opens and closes the document stand; and a near field communication unit on the inside of the cover, are provided.

A liquid level sensor package for a replaceable print liquid reservoir, the package including a number of heater circuits, each heater circuit including a heater element to dissipate heat and a number of control devices, each control device individually controllable to be electrically connected to the heater element, the heater element to dissipate a different amount of heat when electrically connected to different ones of the control devices.

A server, which is capable of communicating with a printer or printers, each performing radio frequency identification (RFID) communication with a RFID tag, contains: a record unit configured to record, in a memory device, printer identification information for identifying a printer, tag identification information for identifying a RFID tag, and communication parameters with which the printer performs RFID communication, in an associated manner; a first obtaining unit configured to obtain, from a printer, printer identification information and tag identification information read by the printer; an identifying unit configured to identify communication parameters associated with the printer identification information and the tag identification information obtained by the first obtaining unit; and a first transmission unit configured to transmit the communication parameters identified by the identifying unit, to the printer.

A sensor circuitry package for a replaceable print apparatus component including a plurality of sensing zones, each sensing zone including a number of sensing devices, each sensing device having a respective sensing function, and an array of memory elements, each memory element corresponding to a respective one of the sensing zones. During a sensing operation, the array of memory elements to serially load a segment of select bits, each select bit having one of a select value and a non-select value, a memory element having a select value to select a number of sensing devices of the respective sensing zone to be enabled to perform its respective sensing function.

A liquid level sensor package for a replaceable print liquid reservoir, the package including a substrate, a surface layer to contact a print liquid in the print liquid reservoir, and a layer stack including a number of metal layers disposed between the substrate and the surface layer. An array of heater elements disposed in one of the metal layers of the layer stack, and an array of thermal sensors disposed in a different one of the metal layers of the layer stack, each thermal sensor corresponding to a different heater element of the array of heater elements, and each thermal sensor to provide indication of a presence or absence of print liquid based on a sensed temperature after being heated by the corresponding heater element.

A liquid level sensor package for a replaceable print liquid reservoir, the package including a number of heater circuits, each heater circuit including a heater element to dissipate heat and a number of control devices, each control device individually controllable to be electrically connected to the heater element, the heater element to dissipate a different amount of heat when electrically connected to different ones of the control devices.

Provided is a consumable chip and a communication method thereof. The method is adopted for a consumable chip including a first consumable MCU unit, a verification cryptographic operation unit and a second consumable MCU unit; the method includes: when the first consumable MCU unit is incompatible with the printer, the first consumable MCU unit activating the second consumable MCU unit to execute a second consumable chip core processing flow, and calling the verification cryptographic algorithm function program of the verification cryptographic operation unit to calculate a new verification password; after the first consumable MCU unit inquires that the second consumable MCU unit has completed the second consumable chip core processing flow, the first consumable MCU unit reading the new verification password and sending to the printer, the new verification password is received by the printer to achieve compatibility between the first consumable MCU unit and the printer.

An example system may include a plurality of print devices, a supply attachment, and a device remote to the plurality of print devices. The plurality of print devices may receive the supply attachment. The device remote to the plurality of print devices may receive signals via the supply attachment that are indicative of print device information data from the plurality of print devices.

A housing, a processing unit disposed inside the housing, a cover member for covering an opening located in the housing in an openable and closeable manner, and a near field communication sensor disposed in the housing are provided, the processing unit is exposed to an exterior of the housing through the opening, and the near field communication sensor is, with the opening closed by the cover member, located between the opening surface and the cover member in an orthogonal direction orthogonal to an opening surface of the opening.

According to one embodiment, an information management system includes a storage device and a control unit. The storage device is provided in a management server communicatively connected to an image forming apparatus to which a cartridge having a consumable item is detachably attached, via a network, and stores information on the consumable item or the cartridge. The control unit limits a predetermined function related to image formation of the image forming apparatus when, based on identification information indicating the cartridge stored in a cartridge storage device provided in the cartridge attached to the image forming apparatus, information on the consumable item or the cartridge is acquired from the storage device, and the acquired information satisfies a predetermined condition indicating that the cartridge is not a genuine cartridge.