摘要:
A front cover and an upper panel of the image forming device is engaged with each other by an engagement mechanism. The engagement mechanism includes a claw and an engagement member that engages with the claw. The claw is disposed on an upper section of the front cover, and the engagement member is disposed on the upper panel. The engagement mechanism further includes surfaces of the front cover and ribs that abut the surfaces. The ribs are provided to the upper section of the front cover and protrude in a direction perpendicular to a direction in which the front cover is opened and closed.
摘要:
By using a duct, an image forming device in which an upper portion of a thermal fixing mechanism and an optical mechanism can be cooled. A fixing unit is disposed on the left side of the duct. A first auxiliary plate, which supports a scanner unit having a drive motor, is disposed above an upper opening of the duct. A process cartridge is disposed with its end next to the right side of the duct, and a second auxiliary plate is disposed below the duct. A power source is placed under the second auxiliary plate. Accordingly, cooling air from an intake fan is directed to four directions: between an upper portion of the fixing unit and the first auxiliary plate, to the underside of the first auxiliary plate, to the end of the process cartridge, and to the power source.
摘要:
To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting/disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC/DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.
摘要:
In a power control unit according to the present invention, an output voltage of a power circuit is detected as a control voltage by an output voltage detector and a selector selects one of an internal reference voltage supplied from a built-in reference voltage source and an external reference voltage applied from the external as a selected reference voltage. Further, a control signal generating unit generates a control signal for adjusting the output voltage of said power circuit to voltage corresponding to the selected reference voltage on the basis of the comparison result of said selected reference voltage and said control voltage.
摘要:
A communication system includes: an image forming unit connected to a communication line through a communication control unit; and a management unit for managing data of resources of the image forming unit, the management unit being connected to the communication line, the image forming unit including: at least one component part; a first storage part for storing a control program for the component part, so that the component part is controlled in accordance with the control program; and a first control part for transmitting a first code to the management unit via the communication line in response to an update request signal, the first code indicating a model of the image forming unit and indicating a type of the component part, the management unit including: a second storage part for storing a plurality of control programs for different types of the component part of the image forming unit; and a second control part for reading out a first control program from the second storage part in accordance with the first code received from the first control part, and for transmitting the first control program to the image forming unit via the communication line, so that the first control program is stored in the first storage part.
摘要:
A cleaning device incorporated in an image forming apparatus for removing a toner remaining on a photoconductive drum by a fur brush and collecting the removed toner by a collecting roller. The cleaning device selectively moves the fur brush into and out of contact with both of the photoconductive drum and collecting roller.
摘要:
A single magnetic brush developing unit is disposed adjacent to a photoconductive drum for applying toner thereto. Three applicator units are selectively actuatable to apply three toners of respective primary colors to the developing unit.
摘要:
An image forming device includes a device body, a side cover fixed to the device body to cover a side face of the device body, a top cover attached swingably to the device body to cover an upper face of the device body, the top cover and the side cover defining a mating portion as a boundary region therebetween, a plane portion formed in a first one of the top cover and the side cover, and an inclined portion formed at a side of the first one in the mating portion, the inclined portion including an inclined surface configured to be inclined with respect to the plane portion, the inclined surface extending toward a back surface side of a second one of the top cover and the side cover.
摘要:
A system that prevents the engagement of an intermediate gear and a driven gear from releasing due to a force from the driven gear without increasing an arrangement angle is described. A surface receiving a load acting on a rotation axis of a second groove that is used as an axle bearing formed on the side of a second gear part that engages with a driven gear is made to be an inclined receiving part. The second receiving surface touches the rotation axis of the second groove part. The surfaces are arranged such that the distance from the center of rotation of the driving gear increases as it moves away from the driven gear. By this arrangement, the inclined receiving part creates a force in the opposite direction of the direction to release the intermediate gear from the driven gear that acts upon the rotation axis as the counteraction of the force that acts on the rotation axis, so the intermediate gear does not separate from the driven gear.
摘要:
A cleaning device including a conductive member configured to charge powder remaining on a member to be cleaned so as to have a single polarity and configured to scrape off at least part of the powder, and disposed to contact with the member to be cleaned; a cleaning member configured to electrically adsorb the powder present on the member to be cleaned, disposed to contact with the member to be cleaned and located downstream of the conductive member in a direction in which the powder is conveyed thereon; a first recovering member configured to electrically adsorb the powder present on the cleaning member and disposed to contact with the cleaning member; and a second recovering member configured to scrape off the powder from the first recovering member and disposed to contact with the first recovering member, wherein the conductive member is constant-current controlled.