摘要:
In the case that the user takes out the disc and uses the disc as a single unit, a history of taking out the disc is left in the disc cartridge, and in a state that the user does not positively perform a handling of the disc such as a movement of the disc between the disc cartridges, a history of taking out the disc is not left in the disc cartridge. A cartridge of the invention is provided with locking means for locking an insertion and removal port opening and closing member which opens and closes a disc insertion and removal port, and locking cancellation preventing means for preventing the locking means from canceling the locking.
摘要:
A disk is moved between disk cartridges without being in touch with the disk. Therefore, movement of the disk between the disk cartridges is carried out via a disk holder. Further, when the disk is moved between the disk cartridges, disk information of the cartridge is also moved simultaneously. Accordingly, the disk information held by the disk cartridge is provided at a disk holder portion and the disk information can be read by other disk device. Further, the disk holder is provided with a region representing information of the disk. When it is made to be a label region, in moving the disk between the disk cartridges, also the disk information held by the disk holder can simultaneously be moved. Further, even when the disk cartridge incorporates the disk, the content of the disk can easily be recognized via the disk holder. Further, a user can arbitrarily write or erase content of the disk to or from the label region, the disk is recognized easily and easiness of use is considerably promoted.
摘要:
In a mono component toner developing device, a developing roller supporting and conveying the mono component toner is arranged in contact with a photoreceptor supporting a static latent image. A supplying roller is arranged opposing the developing roller with a predetermined contact depth. The supplying roller has a pair of driven gears fixed at both ends of the rotational shaft thereof for being rotated so as to be meshed with a pair of driving gears rotated by a driving motor. The rotational force of the driving gears, acting at a coupling position, is used to deflect the supplying roller toward the developing roller side, whereby the supplying roller is pressed in approximately uniform contact with the developing roller across its full length along the shaft.
摘要:
A packet processing and packet transfer scheme capable of reducing the packet processing overhead by eliminating a need to decrypt and re-encrypt the entire packet at a time of relaying encrypted packets. In a packet processing device for relaying encrypted packets, a packet transferred to the packet processing device is received, where the packet has a packet processing key to be used in a prescribed packet processing with respect to a data portion of the packet, and the packet processing key is encrypted by using a first master key shared between a last device that applied a cipher communication related processing to the packet and the packet processing device. Then, the packet processing key in the received packet is decrypted, without carrying out the prescribed packet processing with respect to the data portion of the packet, and the decrypted packet processing key is re-encrypted by using a second master key shared between a next device to apply the cipher communication related processing to the packet and the packet processing device. Then, the packet with the re-encrypted packet processing key encoded therein is transmitted toward a destination of the received packet.
摘要:
A packet transfer scheme for realizing a control of a packet inspection device to pass only packets from those mobile computers that can be recognized as authenticated among non-management target mobile computers that had moved inside the network, to outside the network. A packet inspection device judges whether a passing of a packet transmitted from a mobile computer other than own management target computers to outside the own network is permitted or not, according to a mobile computer identification information contained in the packet, and sends a message indicating a refusal of the passing of the packet to the mobile computer when the passing of the packet is judged to be not permitted; and then transfers the packet when the passing of the packet is judged to be permitted; and also checks whether a user information regarding a user of the mobile computer satisfies a prescribed condition or not, upon receiving a message requesting a key information for generating the mobile computer identification information from the mobile computer, and returns a requested key information to the mobile computer when the user information satisfies the prescribed condition.
摘要:
A packet authentication and packet encryption/decryption scheme for a security gateway suitable for a hierarchically organized network system and a mobile computing environment. For the packet authentication, in addition to the end-to-end authentication at the destination side packet processing device, the link-by-link authentication at each intermediate packet processing device in the packet transfer route is used. The link-to-link authentication data being inspected by intermediate nodes and end-to-end data (different from link-to-link data) being inspected by destination node but not being inspected by intermediate nodes. For the packet encryption/decryption, each packet processing device determines whether or not to encrypt/decrypt the packet according to: an information on the computers which are directly managed by this packet processing device; or the encryption information and the signature information provided in the packet; or the encryption information, the signature information, and the encryption/decryption level information provided in the packer.
摘要:
A blade is pressed against a developing roller for regulating the amount of toner which is deposited on a surface of the developing roller. The blade is formed with a slant face at its tip end, to which the toner is transported along a direction of rotation of the developing roller. An angle of aperture .theta. at a toner inlet portion defined by the developing roller and the slant face is set at 12.5.degree. or more, the angle of aperture counting in an angle .psi. of the slant face, elastic deformation and radius (R) of the developing roller, and an angle .alpha. related to a nip width w on which the blade contacts with the developing roller. Such an angle of aperture .theta. provides a great allowance for a free length l of the blade, thereby permitting the blade to maintain a constant toner mass for forming a uniform toner layer.
摘要:
An elastic member for pressing is provided in a prescribed location in an area where the developer carrier comes in contact with the discharging member, in order to bring the discharging member into contact with the developer carrier so that mechanical peeling of the residual developer on the developer carrier is not caused, and the discharging member is provided with a bias power supply for setting bias in a direction imparting to the discharging member a force for electrically drawing the residual developer on the developer carrier away from the developer carrier, and after thus reducing the electric adhesion of the residual developer to the developer carrier, the developer feed member removes the residual developer on the developer carrier in the vicinity of disjunction area or in the contact area of the developer carrier and the developer feed member, thereafter applies new developer in a developer container to the developer carrier in the vicinity of approaching area or in the contact-starting area of the developer carrier and the developer feed member.
摘要:
There is provided a monoazo compound which is useful as a reactive dye for dyeing or printing a fiber material in an orange to scarlet color; and intermediate compounds for producing the compound is provided; the monoazo compound being represented by the following formula (1): ##STR1## wherein m represents 0 or 1; R.sup.1 represents a hydrogen atom or a lower alkyl group; D represents a specific diazo component of benzene type having substitution of a fiber reactive group; B.sup.1 represents a direct bond or connecting group; Z.sup.1 represents an alkylcarbonyl group, phenylcarbonyl group or a fiber-reactive group of vinylsulfone, triazine or pirimidine type; a group represented by --NR.sup.1 -- bonds to 6-position or 7-position of a naphthalene ring;and the intermediate compounds being represented by the following formulae (A) or (B): ##STR2## wherein U represents a connecting group such as alkylene and the like, Y represents vinyl or --CH.sub.2 CH.sub.2 L, and L represents a group eliminatable by an action of alkali.
摘要:
A PLL circuit includes a PLLic formed into an integrated circuit; a loop filter for receiving an output signal from the PLLic; a voltage-controlled oscillator having an oscillation frequency which is controlled according to an output signal of the loop filter for applying a controlled oscillation output signal to the PLLic, the voltage-controlled oscillator including a resonator and a negative resistor circuit; wherein a buffer amplifier functioning as a part of the voltage-controlled oscillator is incorporated into the PLLic, and the resonator and the negative resistor circuit of the voltage-controlled oscillator are disposed outside of the PLLic.