PURPOSE:To prevent a waste toner transporting pipe from hindering the attachment and detachment of a cleaning device and to prevent the spill of waste toners from the waste toner transporting pipe by turnably supporting a developer transporting device around the neighborhood of the cleaning device. CONSTITUTION:A shutter 40 is disconnected from a connecting part cooperatively with the removal of a cleaner unit 17 when the cleaner unit is removed from a body. The shutter is then energized by a spring 39 and is slid in an arrow mark A direction to cover the waste toner discharge port in the lower part at the left end of an auger pipe 37. A second auger 33 and connecting pipe 35 are then rotated 30 deg. in an arrow mark D direction around the connecting point of the connecting pipe 35 and the cleaner unit 17. The second auger 33 is rotated 90 deg. in an arrow mark E direction around the connecting point of the connecting pipe 35 and the connecting part 36 in such a manner that the axial line of the second auger 33 parallels with the cleaner unit 17. As a result, the second auger 33 is eventually aligned to the lower part of the cleaner unit 17 in parallel with the longitudinal direction thereof. The cleaner unit 17 is mounted by reverse procedures.

Developer transporting device

PURPOSE:To permit polishing over the whole periphery without leaving unpolished part by permitting a polishing grindstone part arranged in the intermediate part of the connection parts of two grindstone parts to press a rotatable link part, during the outer-periphery polishing for flat square part. CONSTITUTION:Two grindstones 11 and 12 and two magnet driving sources 13 and 14 are connected in a connection part 15, and connected to a pressing and driving source 18 through a rod 17 by a revolving link 16 in the intermediate part of the connection part 15, and two grindstones 11 and 12 are turned in the direction of arrow 19 around the link 19. At this time, a flat square part 1 is fixed onto a holding stage, and revolved in the direction of arrow 3 together with the holding stage. When the grindstones 11 and 12 are revolved and brought into contact with a part 1 under pressure by the pressing and driving source 18, polishing is started. With such a constitution, all the periphery can be polished without leaving the unpolished part.

Outer-periphery polishing apparatus for flat square plate parts

PURPOSE:To eliminate an uneven intensity of illumination caused by the eccentricity of a lens at low cost by setting the position of a view field diaphragm hole in shifting in advance by a correcting quantity in the direction for offsetting an eccentric quantity of an image forming lens CONSTITUTION:A collective optical system is constituted so that an original on an original platen 1 is irradiated by a light source 2, and its reflected light is made to form an image on a photosesntive body 6 through two image forming lenses 3, 4, view field lens 5, diaphragm 7 and a view field diaphragm 8 In case when a lens having an eccentric quantity DELTAXei is used as the image forming lens 4, when it is presumed that a diaphragm 8a of the view field diaphragm 8 positioned at (a) near the lens moves by DELTAfi at a position of a distance (b) (the photosensitive body 6), a position of the hole 8a is shifted in advance to the opposite side by interposing the moving extent DELTAfi of the distance (b) (the photosensitive body 6) and the optical axis by a correcting quantity DELTAXHi=(a+b) DELTAXei/b In this way, the light forms an image on the photosensitive body 6, and an uneven illumination caused by eccentricity of the image forming lens is corrected

Collective optical system of copying machine

PURPOSE:To stabilize earlier an amplier circuit at application of power by connecting plural diodes from an output of a differential amplifier in parallel with a feedback resistor CONSTITUTION:A current chared in a capacitor 2 from an output of a differential amplifier 7 passes through diodes 81-8n to the capacitor 2 not through a feedback resistor 4 at the application of power supply voltage, then the potential of the capacitor 2 is charged rapidly by the forward voltage VF of the diodes 81-8n Further, the ratio of the forward voltage VF of the diodes 81-8n to a resistance volue Rf of the feedback resistor 4, that is, a current of VF/Rf passes through the feedback resistor 4 and then charged Thus, the number of diodes 81-8n, 91-9n is adjusted in the operating voltage range, then high speed operation is attained Thus, the time until the input bias voltage is made stable is quickend at application of power supply

Differential amplifier circuit

PURPOSE:To reduce gear noises in a gear driving equipment by a method wherein a damping body providing power to a power transmission system at all times is engaged on a suitable position in the power transmission system. CONSTITUTION:A shock force tends to separate a point of engagement of a smaller gear 2 with a larger gear 6, but a damping body 10 gives a damping force to a rotating shaft 5 of the larger gear 6 which is a driven gear, and prevents the point of the engagement from being separated. Further, when a gear driving device rotates in a normal state, the damping body can also restrain chatterings in which the separations and collisions of the engaging point are repeatedly caused by various errors of gears. That is, a collision at the engaging point of the smaller gear 2 with the larger gear 6 gives rise to a fluctuation in the larger gear 6 in the turning angular velocity within a range of an angle corresponding to back rash, but in this case changes in the turning angular velocity are supressed and an occurrence of chatterings are prevented by virtue of the damping force of the damping body 10.

Innami Tatsuo

Papers

Gear noises reducing device in gear driving equipment