Abstract: A data processing apparatus for writing data to a recording medium having a predetermined file system configured therein includes the following elements: an insertion portion that removably holds the recording medium, the data processing apparatus writing data to the recording medium inserted in the insertion portion; an insertion/removal detector that detects that the recording medium is inserted in or removed from the insertion portion; a writing state storage unit that stores, when the insertion/removal detector detects removal of the recording medium, a data writing state upon removal of the recording medium; and a restoration/analysis determining unit that determines, when the insertion/removal detector detects insertion of the recording medium, whether it is necessary to perform analysis regarding restoration of the file system configured in the inserted recording medium on the basis of the state stored in the writing state storage unit.

Abstract: A storage driver for controlling access to a storage unit having a password-type lock function checks, when executing processing for erasing all data stored in the storage unit, whether or not a password has been set for the storage unit, and invalidates the password-type lock function if a password has been set.

Abstract: An electronic device is configured to be able to access to a storage unit having a password-type lock function, and the electronic device includes: a memory unit for storing device information about the electronic device; and a storage driver for controlling access to the storage unit, wherein the storage driver creates a password based on the device information acquired by referring to the memory unit, and notifies the storage unit of the created password to set/cancel password-type lock.

Abstract: An image formation device has an image carrier and a development device (50) into which development units housing toner are detachably installed. The development units have storage device storing color and toner amount remaining information. And the image formation device operates in monochrome printing mode when development units of the same color are installed. The image formation device has display unit (95) to display the toner remaining amount in development units, and control unit which acquires color and toner amount remaining information in the storage device, and executes control to enable switching between a separate remaining amount display mode (95A, 95C) to separately display on the display unit the toner amount remaining in each of installed development units corresponding to installation positions, and a total remaining amount display mode (95B, 95D) to display on the display unit the total toner amount remaining in installed development units of the same color.

Abstract: A printing system that comprises a host computer 50 and a printer 10 in combination. As the printer 10, is used one that can process a first class print request including a control program and print data and a second class print request including only print data, and, when an ID output request is received, sends a control program ID as identification information of a control program stored inside the printer 10 at that point of time. Printer control software 20a is installed on the host computer 50 to put the computer 50 in a state that, when a print request is to be outputted to the printer 10, the computer 50 verifies whether a required control program is stored within the printer 10, and the computer 50 sends a second class print request to the printer 10, when storing of the control program is verified, and sends a first class print request to the printer 10, when storing of the control program is not verified.

Abstract: A data processing apparatus for writing data to a recording medium having a predetermined file system configured therein includes the following elements: an insertion portion that removably holds the recording medium, the data processing apparatus writing data to the recording medium inserted in the insertion portion; an insertion/removal detector that detects that the recording medium is inserted in or removed from the insertion portion; a writing state storage unit that stores, when the insertion/removal detector detects removal of the recording medium, a data writing state upon removal of the recording medium; and a restoration/analysis determining unit that determines, when the insertion/removal detector detects insertion of the recording medium, whether it is necessary to perform analysis regarding restoration of the file system configured in the inserted recording medium on the basis of the state stored in the writing state storage unit.

Abstract: An image forming device has an image carrier (20) and a development device (50) in which development units (51-54) are detachably attached, and the development units has a memory for storing color information and remaining amount information of development agent. The image forming device operates as a monochrome printing mode when single color development units are attached at attachment positions of the development device, further has a display unit (95) for displaying a remaining amount of developing agent in the development units, and a control unit for obtaining an initial total amount of developing agent in an initial state and a current total remaining amount of developing agent of attached development units, and for displaying on the display unit the initial total amount and the total remaining amount. By displaying the initial and current total amount of development units, the convenience of replacement administration of development units can be improved.

Abstract: An image formation device has an image carrier and a development device (50) into which development units housing toner are detachably installed. The development units have storage device storing color and toner amount remaining information. And the image formation device operates in monochrome printing mode when development units of the same color are installed. The image formation device has display unit (95) to display the toner remaining amount in development units, and control unit which acquires color and toner amount remaining information in the storage device, and executes control to enable switching between a separate remaining amount display mode (95A, 95C) to separately display on the display unit the toner amount remaining in each of installed development units corresponding to installation positions, and a total remaining amount display mode (95B, 95D) to display on the display unit the total toner amount remaining in installed development units of the same color.

Abstract: A printing system that comprises a host computer 50 and a printer 10 in combination. As the printer 10, is used one that can process a first class print request including a control program and print data and a second class print request including only print data, and, when an ID output request is received, sends a control program ID as identification information of a control program stored inside the printer 10 at that point of time. Printer control software 20a is installed on the host computer 50 to put the computer 50 in a state that, when a print request is to be outputted to the printer 10, the computer 50 verifies whether a required control program is stored within the printer 10, and the computer 50 sends a second class print request to the printer 10, when storing of the control program is verified, and sends a first class print request to the printer 10, when storing of the control program is not verified.

Abstract: A program space for executing a program is set in the logical memory space of CPU and the address translating destination of the program space 6 can be set in a switching mode between a ROM as a first memory and a RAM as a second memory. Thus, the address translating destination of the program space is set in the ROM when the executing speed is made increasable by utilizing the RAM as a system memory because of the presence of bulk processing data, whereas the address translating destination of the program space is set in the high-speed RAM when the RAM has a sufficient space margin.

Abstract: A program space for executing a program is set in the logical memory space of CPU and the address translating destination of the program space 6 can be set in a switching mode between a ROM as a first memory and a RAM as a second memory. Thus, the address translating destination of the program space is set in the ROM when the executing speed is made increasable by utilizing the RAM as a system memory because of the presence of bulk processing data, whereas the address translating destination of the program space is set in the high-speed RAM when the RAM has a sufficient space margin.