Abstract: An image processing apparatus includes an extracting unit to extract watermark data from image data of an image; a generating unit to generate a watermark image based on the watermark data; and a superimposing unit to superimpose the watermark image on the image.

Abstract: A method of controlling an energy saving mode in an image forming apparatus having hardware resources used in an image forming process and programs for performing the image forming process includes a step of letting the image forming apparatus enter into an energy saving mode in a standby state in which the image forming apparatus is not used, and a step of recovering at least part of functions of the image forming apparatus in response to setting of a data carrier in the image forming apparatus, said data carrier being in a possession of an operator.

Abstract: A method of setting functions in an image forming apparatus having hardware resources used in an image forming process and programs for performing the image forming process includes a step of reading an information content of a data carrier that is in a possession of an operator, and a step of setting a function of the image forming apparatus in response to the read information content.

Abstract: An image reading apparatus includes a reading part reading original, a time measuring part being able to measure different times selectively, and a defining part determining separation of sheets of the original read by the reading part. The time measuring part selects a time to be measured according to a predetermined condition, and the defining part determines the separation of sheets of the original when the selected time has elapsed without an operation concerning a subsequent reading operation being performed after a reading operation of the reading part is stopped.

Abstract: In a data transmission apparatus and method of the present invention, a specific operator ID for an operator who uses a data processing device to process image data to be copied or transmitted, is selected. Specific owner IDs for owners who are authorized to access the image data, are selected. User identification data, inclusive of all operator IDs and owner IDs correlated to the data processing device, are stored in a storage device each time image data is captured by the data processing device. Allocation of the stored user identification data to each of the image data is managed by reading items of the user identification data from the storage device in response to the selections of the specific operator ID and the specific owner IDs and displaying the user identification data items.

Abstract: In a data transmission apparatus and method of the present invention, a specific operator ID for an operator who uses a data processing device to process image data to be copied or transmitted, is selected. Specific owner IDs for owners who are authorized to access the image data, are selected. User identification data, inclusive of all operator IDs and owner IDs correlated to the data processing device, are stored in a storage device each time image data is captured by the data processing device. Allocation of the stored user identification data to each of the image data is managed by reading items of the user identification data from the storage device in response to the selections of the specific operator ID and the specific owner IDs and displaying the user identification data items.

Abstract: An image reading apparatus includes a reading part reading original, a time measuring part being able to measure different times selectively, and a defining part determining separation of sheets of the original read by the reading part. The time measuring part selects a time to be measured according to a predetermined condition, and the defining part determines the separation of sheets of the original when the selected time has elapsed without an operation concerning a subsequent reading operation being performed after a reading operation of the reading part is stopped.

Abstract: A loop scavenge two-cycle internal combustion engine that includes a partial wall partition disposed between a scavenging path and a cylinder bore, with a cooling port formed in the partial wall partition for enabling fresh gas in the scavenging path to contact directly with a peripheral wall of a piston in the cylinder. The fresh gas in the scavenging path directly contacts and efficiently cools the peripheral surface of the piston to prevent heat rise and distortion within the engine. The partial wall partition and cooling port maximize both cooling efficiently and cylinder strength and durability.

Abstract: A two-stroke internal combustion engine in a working machine such as a chain saw has been prone to stalling when the stance of the machine was changed from slanting down to slanting up. Such stalling is minimized when lower longitudinal scavenging passage in the cylinder block of the engine have smaller cross section as compared with upper scavenging passage, and when the crank chamber of the engine includes a flow restricting portion for impeding the flow of liquid fuel into the lower scavenging passage when the stance is changed. The engine has a cylinder block (12), a crankcase (20), scavenging passages (27, 27), and a flow restricting portion (40) on an inner peripheral surface (22a) of the crank chamber (22).

Abstract: An image forming apparatus includes an image forming part for forming an image described by a video signal on a recording sheet by carrying out an image forming operation which includes scans in main and sub scan directions, a storage part for storing test pattern data which describes at least one test pattern to be formed on the recording sheet, a generator for generating a generation interval of the video signal in the main and sub scan directions responsive to the test pattern data stored in the storage part, and a controller for controlling the image forming operation of the image forming part by supplying to the image forming part the video signal which describes an arbitrary test pattern and is generated based on the test pattern data read from the storage part with the generation interval generated by the generator.

Abstract: An image recording apparatus includes an image recording media, an optical scanning system selected from among predetermined different optical scanning systems, a first memory for storing a plurality of sets of control data respectively provided for the different optical scanning systems, a switch for specifying one of the predetermined different optical scanning systems provided in the image recording apparatus, and a second memory for storing one of the sets of control data corresponding to the optical scanning system selected from among the predetermined different optical scanning systems.

Abstract: An image forming apparatus includes a photosensitive drum, a laser diode, and an optical scanning system provided between said laser diode and the photosensitive drum, for scanning the recording medium by deflecting the light beam emitted from the laser diode to thereby form an image on the recording medium. The optical scanning system has one of predetermined optical characteristics different from each other. The apparatus further includes a memory which stores a plurality of sets of control data provided for the predetermined optical characteristics of the optical scanning system. The control data is used for controlling the laser diode. Further, the apparatus includes a control data selecting circuit which selects one of the sets of control data which relates to the one of the predetermined optical characteristics of the optical scanning system, and a controller for controlling the laser diode on the basis of image data and the selected one of the sets of control data.

Abstract: A laser printer or like electrostatic recording apparatus of the type developing an electrostatic latent image provided on a photoconductive drum by toner which is conveyed by a developing roller. Various devices of the apparatus including the photoconductive drum and developing roller are separated into an upper and a lower unit which are openable away from each other. A photoconductive drum assembly including the photoconductive element and a developing assembly including the developing roller are individually detachable from a body of the apparatus. Various measures are taken to enhance stable and safe operation, miniaturization, easy maintenance, operability, service life, and image quality.

Abstract: An electrostatic printing apparatus capable of printing both normal sheets of paper and composites such as envelopes. In accordance with a mode in which normal sheets are printed and with the other mode in which envelopes are printed, transfer current applied to a transfer charger, fixing pressure applied to between a pair of fixing rollers, and heat generation of the heat source(s) in the fixing roller(s) can be changed respectively to those suitable for the sort of a transfer member. This change can be performed manually, or controlled automatically based on a signal issued from a member sorting sensor disposed in a paper supply portion.

Abstract: A composition having improved transparency and being substantially free from a bleeding phenomenon comprising 100 parts by weight of polypropylene and 0.005 to 8 parts by weight of a 1.3,2.4-di(alkylbenzylidene) sorbitol with each alkyl group having 2 to 18 carbon atoms.