Abstract: The printing apparatus including: a light source that emits light to a first surface of a printing sheet; a sensor that detects the light reflected from the printing sheet; a reflection member located at a position facing the sensor and coming into contact with a second surface opposite to the first surface of the printing sheet; and a control unit configured to determine a type of the printing sheet based on a feature amount obtained by the sensor detecting the light from a plurality of positions of the printing sheet being conveyed, wherein a first area and a second area whose reflectance is lower than that of the first area are included in the reflection member and a position corresponding to the first area and a position corresponding to the second area are included in the plurality of positions.

Abstract: A processing apparatus comprises: an integrated circuit; a power supply unit connected to an external power supply and configured to perform power supply to the integrated circuit; and a power switch configured to switch a state of the processing apparatus based on power supplied from the power supply unit. The integrated circuit comprises a control unit configured to control a power state of the integrated circuit in a state in which power supply to the integrated circuit is being performed by the power supply unit.

Abstract: A printing apparatus includes a conveyance unit configured to convey a sheet in a conveyance direction, a print unit configured to perform printing on the sheet conveyed by the conveyance unit, a light receiving unit configured to receive light and make an output according to the received light, and a control unit configured to control borderless printing by the print unit, the borderless printing including extra-printing from a sheet edge to outside of the sheet. The control unit sets an extra-printing amount by which printing extends off the sheet edge after the light receiving unit makes the output according to the received light.

Abstract: A printing apparatus includes a conveyance unit to convey a printing sheet in a conveyance direction, a printing unit to print on the conveyed printing sheet, a print unit, and a carriage to move in a direction crossing the conveyance direction. A detection unit detects a sheet edge of the print sheet based on output from a light receiving unit, and a control unit controls a borderless printing by the print unit that includes an extra-printing from the sheet edge to outside of the sheet. When the control unit performs the borderless printing, the control unit obtains an instruction to perform the borderless printing, and then causes the light receiving unit to obtain the output by causing the light emitting unit to emit the light, and thereafter the control unit sets an extra-printing amount by which printing extends off the sheet edge based on the obtained output.

Abstract: A laser drive circuit is provided which includes: a first drive current unit (240) configured to adjust, by a first MOSFET (MN2) and a second MOSFET (MN3) being connected in series, an inflow of a current to a light-emitting element (LD11) that emits light in accordance with a current amount when the light-emitting element emits light and when the light-emitting element is extinguished; a voltage drop unit (MN4) configured to cause a gate-source voltage of the first MOSFET to drop when the light-emitting element is extinguished; and a timing generating unit (220) configured to generate a signal for controlling driving of the first drive current unit and the voltage drop unit.

Abstract: A printing apparatus includes a carriage that moves in a direction crossing the conveyance direction of a print sheet, and a sheet edge detection sensor disposed on the carriage and having an LED and a phototransistor. The printing apparatus adjusts at least one of an LED driving circuit and an amplification circuit such that an output from the amplification circuit when LED emits light to a predetermined position on the print sheet is at a predetermined level. Also, after this adjustment but before detection of a sheet edge by the sheet edge detection sensor, the printing apparatus controls an extra-printing amount by which printing extends off the sheet edge based on an output from the amplification circuit.

Abstract: A motor-driven single-lens reflex camera which controls and executes, through forward and reverse rotation of a single motor, a mirror up/down operation and a shutter charge operation by a mirror/shutter driving system, and also a film winding/rewinding operation by a film feeding system. The mirror up and the shutter charge release operations are executed through forward rotation of the motor, and the mirror down, the shutter charge and the film winding/rewinding operations are executed through reverse rotation of the motor. Thus the speedy film feeding after exposure can be made without stopping or reversing drive of the motor.

Abstract: A crawler belt vehicle comprises a chassis, a pair of first wheels mounted on the chassis, a pair of second wheels mounted on the chassis, a pair of crawler belts each trained around the first pair of wheels and the second pair of wheels, and a pair of equalizers each for pressing one of the crawler belts against a ground. Each of the crawler belts has low-friction members spaced-apart from each other in a longitudinal direction of the crawler belt. Each of the equalizers has a leaf spring having a first end connected to the chassis and a second end opposite the first end, and a slider supported on the second end of the leaf spring for undergoing pivotal movement about an axis extending in the longitudinal direction of the crawler belt for pressing the crawler belt against the ground by the resiliency of the leaf spring.

Abstract: A crawler belt vehicle comprises a chassis having a first end portion and a second end portion, first wheels mounted on the first end portion of the chassis for rotation, a swing arm having a front end and a rear end mounted on the second end portion of the chassis for undergoing pivotal movement relative to the chassis about a first axis, driving shafts mounted for rotation about a second axis and connected to the front end of the swing arm for undergoing pivotal movement therewith, and second wheels are mounted on the driving shafts for rotation therewith. Beam members are connected to the front end of the swing arm for undergoing pivotal movement therewith. Wheel axles are mounted on the beam members for rotation about a third axis and for undergoing pivotal movement with the beam members. Third wheels are mounted on the wheel axles for rotation therewith and are disposed between the first wheels and the second wheels.

Abstract: A camera having a cocking mechanism for a shutter and/or mirror, and a lithium battery supplying power to the cocking mechanism. The cocking operating of the mechanism is controlled to be executed intermittently if the cocking operation is not completed within a first predetermined time interval due to low power of the lithium battery.

Abstract: A camera with a built-in strobe includes a camera body and a camera grip provided in the camera body. In the grip, a battery, a spool and a main strobe capacitor are provided. An elongated space, with extends in the camera grip along the longitudinal direction thereof, is defined so as to be surrounded by the battery, the spool and the main strobe capacitor. A strobe circuit board is roughly formed into an L-shape so as to have a cutout portion, and a motor is arranged in the cut-out portion of the strobe circuit board. As a result, the motor and the circuit board can be housed effectively within the smallest possible space within the camera grip. Further, by this arrangement, it becomes possible to realize a small-sized camera provided with a built-in strobe.

Abstract: A camera uses a film cartridge having a casing with a spool therein, and a slot formed in the casing. A film is drawn from, and returned into, the casing through the slot. A light-intercepting door is provided along the slot for opening and closing the slot, and a pivotal shaft rotatably mounts the light-intercepting door on the casing. The camera includes first and second motors. The first motor rotates the pivotal shaft to open and close the door, rotates the spool in one direction to advance the film wound on the spool from the film cartridge, and rotates the spool in another direction to rewind the film into the film cartridge. The second motor rotates a film take-up spool provided in the camera to wind the film around the film take-up spool.

Abstract: A camera including a main switch which turns on/off a power supply, and a first memory unit for storing a mode/function which is selected from changeable modes/functions to be used in photography. The camera further includes a second memory unit for storing the changeable modes/functions separately from the first memory unit, and a mode call switch for calling the modes/functions stored in the second memory unit, the mode call switch being interlocked with the main switch.

Abstract: An SLR camera which uses a film cartridge having a spool includes first and second motors. The first motor performs a film advancing operation, in which the first motor rotates the spool to advance a film wound on the spool from the film cartridge, and a film rewinding operation, in which the first motor rotates the spool so as to rewind the film into the film cartridge. The second motor performs a film winding operation, in which the second motor rotates a film take-up spool provided in the camera to wind the film around the film take-up spool, a shutter charging operation, in which a shutter charge is performed, a mirror up operation, in which a quick-return mirror provided in the camera is moved up after a shutter release, and a mirror down operation, in which the quick-return mirror is moved down after the mirror up operation is completed.

Abstract: A camera having a manually actuable switch for temporarily shifting the camera to an optimum exposure value so that exposure factors, based upon a manually set shutter speed and a manually set aperture value, are replaced by optimum exposure factors based upon a metered brightness of the object to be photographed when the camera is set to a non-program exposure mode. A clear button associated with the camera functions as a manually actuable switch for temporarily shifting an exposure mode of the camera to another exposure mode when the camera is set to a hyper-manual exposure mode. In the hyper-manual exposure mode, a photographer sets exposure factors by actuating a Tv electronic dial and an Av electronic dial. Actuation of the clear button when the camera is set to the hyper-manual exposure mode causes the set exposure factors to be replaced with optimum exposure factors that are automatically calculated in accordance with an object brightness Bv.

Abstract: An exposure control apparatus of a camera having a photometer for detecting a brightness of an object to be taken, an exposure value calculator for calculating an optimum exposure value in accordance with the object brightness, and an exposure factor setting device for setting a pair of exposure factors having a shutter speed and a diaphragm value, including an exposure factor manual setting device, a specific program exposure mode in which the exposure factors corresponding to the optimum exposure values are automatically set, and an exposure factor modifying device for enabling the exposure factor manual setting device to manually set one of the exposure factors when the exposure factor manual setting device is actuated in the specific program exposure mode.

Abstract: A camera having a powered zoom lens, including a memory for storing object distances of more than one object to be photographed simultaneously, detected by an object distance measuring device, and a powered zoom lens controller for varying the focal length of the powered zoom lens so that the objects are within the depth of field of the powered zoom lens.

Abstract: An exposure control apparatus of a camera, wherein a pair of exposure factors that include a shutter speed and a diaphragm value can be manually and independently set. Furthermore, in the exposure control apparatus, an exposure value determined in accordance with the exposure factors can be locked, and one of the exposure factors can be varied, based on the locked exposure value, when the other exposure factor is varied by the associated manual setting means.

Abstract: A mechanical control apparatus of a single lens reflex (SLR) camera is provided that includes a rotatable cam having a shutter cam for charging a shutter and a mirror cam, integral and coaxial with the shutter cam, for charging a mirror. The mechanical control apparatus further includes a diaphragm resetting lever, coaxial to the rotatable cam, for resetting a diaphragm of the camera in association with the rotation of the cam.

Abstract: An exposure control apparatus of a camera, in which at least one of a pair of exposure factors that include a shutter speed and a diaphragm value is variable. An exposure factor setting device sets at least one variable exposure factor, while a limit value setting device varies and sets at least one upper and lower limit value of the exposure factor.