Abstract:
A printing material cartridge comprises: a memory device; a plurality of first terminals through which a power source voltage and signals for operating the memory device are supplied from a printing apparatus; and a plurality of second terminals to be used for detecting attachment conditions of the printing material cartridge in a cartridge attachment unit. The plurality of first terminals have a plurality of first contact portions that get in contact with corresponding apparatus-side terminals when the printing material container is properly attached to the cartridge attachment unit. The plurality of second terminals have a plurality of second contact portions that get in contact with corresponding apparatus-side terminals when the printing material container is properly attached to the cartridge attachment unit. The plurality of first and second contact portions are arranged so as to form a first row and a second row. Four contact portions among the plurality of second contact portions are placed at both ends of the first and second rows, respectively.
Abstract:
A liquid jetting apparatus to which a liquid container is attached, the container containing a liquid and having a first device, includes a processor, a first line, a second line, a controller and a connecting module. The processor executes a prescribed process in relation to the liquid container. The first line is for electrical connection to the first device. The second line is for electrical connection to the processor. The controller, in a first instance, accesses the first device via at least the first line and that, in a second instance, accesses the processor via the second line to have the processor execute the prescribed process. The connecting module, in the second instance, electrically sets the first line to a fixed voltage.
Abstract:
The invention provides a liquid consumption apparatus including a liquid consumption unit, a counting unit that counts the amount of the liquid consumed by the liquid consumption unit as a liquid consumption amount, a reception unit that receives a detection signal indicating that the amount of the liquid contained in the liquid container is not more than a predetermined amount; a detection-time liquid amount memory unit that memorizes the liquid consumption amount at the time of reception of the detection signal as a detection-time liquid consumption amount, and a judgment unit that judges that the liquid container is empty when the amount of difference between the liquid consumption amount and the detection-time liquid consumption amount is not more than a specified amount.
Abstract:
When the input write data is a value of a value greater than the existing data of the memory array 100, the semiconductor memory device enables writing of input write data to the memory array 100. In specific terms, the increment controller 150 reads the existing data from the memory array 100, and compares it with the write data latched to the 8-bit latch register 170. When the value of the write data is a value greater than the existing data, the increment controller 150 outputs the write enable signal WEN1 to the write/read controller 140, and executes writing of the write data latched to the 8-bit latch register 170 to the memory array 100.
Abstract:
A liquid jetting apparatus to which a liquid container is attached, the container containing a liquid and having a first device, includes a first line, a second line, a first controller and a second controller. The first controller is to be electrically connected to the first device via the first line. The second controller is to be electrically connected to the first controller via the second line. The first controller includes a processor and a junction module. The processor, in a first instance, executes a prescribed process in relation to the liquid container in response to a signal received from the second controller via the second line. The junction module, in the first instance, puts the first line and the second line into mutually electrically disconnected state and, in a second instance different from the first instance, puts the first line and the second line into mutually electrically connected state make the second controller capable with the first device.
Abstract:
Semiconductor memory devices 10 are each furnished with a memory array 100 having an EEPROM array 101 and a mask ROM array 102. Identifying information for identifying each semiconductor memory device 10 is stored at the beginning three addresses of the EEPROM array 101. 8-bit data relating to ink level is stored at the ninth address to sixteenth address of the EEPROM array 101. The seventeenth address to the twenty-fourth address of the EEPROM array 101 is provided with a usage history information storage area for storing 8-bit usage history information that is rewriteable under certain conditions.
Abstract:
The present invention provides a storage device that enables identification data to be readily rewritten and ensures normal completion of a data writing operation in a short time period. In the storage device of the invention, an ID comparator determines whether or not identification data transmitted from a host computer coincides with identification data stored in a memory array. In the case of coincidence, the ID comparator sends an access enable signal EN to an operation code decoder. The operation code decoder analyzes a write/read command, switches over a direction of data transfer with regard to the memory array based on a result of the analysis, and requires an I/O controller to change a high impedance setting of a signal line connecting with a data terminal DT. This series of processing allows access to an address in the memory array specified by a count on an address counter.
Abstract:
When the input write data is a value of a value greater than the existing data of the memory array 100, the semiconductor memory device enables writing of input write data to the memory array 100. In specific terms, the increment controller 150 reads the existing data from the memory array 100, and compares it with the write data latched to the 8-bit latch register 170. When the value of the write data is a value greater than the existing data, the increment controller 150 outputs the write enable signal WEN1 to the write/read controller 140, and executes writing of the write data latched to the 8-bit latch register 170 to the memory array 100.
Abstract:
The present invention provides a storage device. The storage device includes a reset signal terminal, a clock signal terminal, a non-volatile memory, and a pull down resistance. The reset signal terminal is electrically connected to external equipment at a contact point, for receiving a reset signal. The clock signal terminal is electrically connected to the external equipment at a contact point, for receiving a clock signal. The data signal terminal is electrically connected to the external equipment at a contact point, for sending and receiving a data signal. The pull down resistance is connected to a lower side of electric potentials used by the storage device, at one terminal of the pull down resistance. The controller is initialized in response to the reset signal. The controller also writes to and reads from the non-volatile memory according to the clock signals and the data signals. The data signal includes a signal configured to raise a voltage of the data signal terminal to a higher side of the electric potentials, for instructing to write to the non-volatile memory. The data signal terminal is connected to the other terminal of the pull down resistance.
Abstract:
An ink cartridge has an ink sensor. A printer's control device transmits a detection command and specified detection condition to the cartridge by radio. In response to the detection command, a sensor controller actuates and vibrates the sensor under the specified detection condition. The sensor is attached to a resonance chamber disposed in an ink chamber. The vibration frequency the sensor is regulated by a resonance frequency of the resonance chamber. The resonance frequency is varied by ink in the resonance chamber. Resonance frequency detection specifies the presence or absence of ink in the resonance chamber and so the quantity of ink. The printer's control device receives the detection result with the detection condition from the cartridge, and checks whether detection was performed under the specified detection condition, to verify the detection result's validity.