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:
In a semiconductor memory device 10, the maximum counter value in a carry-up unit 111 of an address counter 110 is set to 128 bits when an access request is for writing data to a memory array 100. On the other hand, in the semiconductor memory device 10, if the access request is for reading data from the memory array 100, the maximum counter value in the carry-up unit 111 of the address counter 110 is set to 256 bits. The result is that it is possible to reduce the circuit structure required for specifying the desired address in an EEPROM array 101 and a masked ROM array 102.
Abstract:
A printing material container is detachably attachable to a printing apparatus having a plurality of apparatus-side terminals. The printing material container comprises a first device, a second device, and a terminal group that includes a plurality of first terminals, at least one second terminal and at least one third terminal. The plurality of first terminals are connected to the first device and respectively include a first contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals. The at least one second terminal is connected to the second device and includes a second contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals. The at least one third terminal is for the detection of shorting between the at least one second terminal and the at least one third terminal and includes a third contact portion for contacting a corresponding terminal among the plurality of apparatus-side terminals. The at least one second contact portion, the plurality of the first contact portions, and the at least one third contact portion are arranged so as to form one or multiple rows. The at least one second contact portion is arranged at an end of one row among the one or multiple rows.
Abstract:
Ink cartridge 70 is attached to cartridge holder 62 of printing apparatus 20 by being inserted in a predetermined insertion direction R until it is touching locating member. Ink cartridge 70 includes a plurality of low voltage circuit terminals 111-113 and a plurality of high voltage circuit terminals 114, 115 on body 71. Low voltage circuit terminals 111-113 are arranged so as to form row A2 orthogonal to insertion direction R. High voltage circuit terminals 114, 115 are arranged so as to form row B2 orthogonal to insertion direction R. Row B2 is arranged further towards the insertion direction R side than row A2.
Abstract:
A semiconductor device 10 sets a pass-through flag to ON when the top address of a write-prohibited area is passed. When a request to write data to a write-restricted area WRA is received, the semiconductor memory device 10 determines whether or not the pass-through flag is set to ON, and if the pass-through flag is not set to ON, the semiconductor memory device 10 executes writing of the data to the write-restricted area. On the other hand, if the pass-through flag is set to ON, the semiconductor memory device 10 does not execute writing of the data to the write-restricted area.
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:
Online support is given for operation of a device. First, a client system equipped with the device is connected to a user support server that gives online support for operation of the device. Next, the client system transmits device information for which the device model can be specified and use environment information indicative of an operation environment of the device to the user support server system. Finally, using the information transmitted to the user support server system, the device support information for supporting operation of the device that the client system has is generated, and the device support information is transmitted to the client system.
Abstract:
The printer 10 executes an ink end detection process A while a print job is underway and an ink end detection process B when a print job has been completed. In the ink end detection process A, the printer 10 applies a first drive signal to detect that the amount of ink housed in the ink cartridge CA is equal to or less than a prescribed amount. In the ink end detection process B, the printer 10 applies a second drive signal to detect that the amount of ink housed in the ink cartridge CA exceeds the prescribed amount.
Abstract:
Printing apparatus 20 comprises a contact detection terminal 101, a cartridge detection circuit M10a, a for-senor terminal 104 and a sensor driving circuit M20, wherein the terminal 101 contacts to detection terminal 116 of ink cartridge 70 when the ink cartridge 70 is attached thereto, wherein the circuit M10a detects contact or non-contact between the terminal 116 and the terminal 101, wherein the terminal 104 outputs high voltage, wherein the circuit M20 controls voltage outputted from terminal 104. The cartridge detection circuit M10a also has a function of shorting detector for detecting contact between the contact detection terminal 101 and the for-senor terminal 104. In the case that the shorting is detected, the sensor driving circuit M20 redeces or interrupts the voltage outputted from terminal 104.
Abstract:
A cartridge 100 utilizes a carrier wave of a signal transmitted from a printer PT to generate driving electric powers required for driving respective circuits elements including a sensor SS of a piezoelectric element. The generated electric power is supplied to a sensor driving voltage generator 220 and is then to the sensor SS. The sensor driving voltage generator 220 supplies the electric power to the sensor SS via a supply circuit having a higher impedance. The sensor SS is discharged via a discharge circuit having a lower impedance. Even when there is a limited electric power supply, the structure enables the sensor SS to release a large energy in a unit time and ensures a sufficient displacement of vibration in the sensor SS. This arrangement of the invention ensures application of a sufficiently high voltage to the piezoelectric element of he sensor SS and causes a sufficient resonance of the sensor SS, even when a cartridge communicating with a printing device receives only a small electric power supply.