Abstract: The direction of a solar light tracking sensor is set easily with high accuracy. A solar light tracking guide (35) is installed on the optical axis (11) of the reflected light collected by a heliostat (2). An optical telescope (47) is so attached to the rear end part of the guide (35) as to be aligned with the guide axis (C) of the guide (35). The posture of the solar light tracking guide (35) is so adjusted that a cross provided in the field of view of the telescope (47) agrees with the center (10a) of the light collection target position and fixed to the base (38). Then, a solar light tracking sensor (12) is fastened to the rear end part of the guide (35) in place of the optical telescope (47).

Abstract: For work in which reflecting mirrors (or facets (31)) to be mounted on a heliostat 3 coincide with a pseudo toroid (53), an adjustment method of, and a mounting posture measuring device for, accurately measuring mounting postures of the respective facets (31) are provided for performing mounting adjustment efficiently and simply. In a method of installing the reflecting mirrors (or the facets (31)) constituting the heliostat 3 for sunlight condensation, each facet (31) is installed in such so that a reflected laser beam (52) reflected by the facet 31 can reach a virtual passage point (52b) in a laser point measuring unit (12).

Abstract: For work in which reflecting mirrors (or facets (31)) to be mounted on a heliostat 3 coincide with a pseudo toroid (53), an adjustment method of, and a mounting posture measuring device for, accurately measuring mounting postures of the respective facets (31) are provided for performing mounting adjustment efficiently and simply. In a method of installing the reflecting mirrors (or the facets (31)) constituting the heliostat 3 for sunlight condensation, each facet (31) is installed in such so that a reflected laser beam (52) reflected by the facet 31 can reach a virtual passage point (52b) in a laser point measuring unit (12).

Abstract: The direction of a solar light tracking sensor is set easily with high accuracy. A solar light tracking guide (35) is installed on the optical axis (11) of the reflected light collected by a heliostat (2). An optical telescope (47) is so attached to the rear end part of the guide (35) as to be aligned with the guide axis (C) of the guide (35). The posture of the solar light tracking guide (35) is so adjusted that a cross provided in the field of view of the telescope (47) agrees with the center (10a) of the light collection target position and fixed to the base (38). Then, a solar light tracking sensor (12) is fastened to the rear end part of the guide (35) in place of the optical telescope (47).

Abstract: An image forming apparatus includes an image forming apparatus body having a space in which a cartridge is mounted, a developer residual amount sensor having a cartridge confronting face, a supported face, a sensor head and an inclination regulating projection member and serves to detect the amount of developer, a sensor holder having a sensor supporting face for supporting the supported face and a sensor holding portion for holding the developer residual amount sensor, and a fulcrum member which is rotatable with respect to the tip portion thereof as a fulcrum.

Abstract: An image formation system also serving as an MICR printer including a cartridge mount space for detachably mounting a process cartridge having an image support, a developing roll and a collection vessel, an optical writer ROS for forming an electrostatic latent image on the surface of the image support by a light beam of a predetermined light quantity, and a parameter change system having parameter storage means Me for storing image formation process parameters used when the process cartridge mounted in the cartridge mount space is a normal cartridge and when the process cartridge is an MICR cartridge for forming a ferromagnetic toner image that can be magnetically read, the parameter change system for setting the image formation process parameters in response to the type of process cartridge mounted in the cartridge mount space.