JP2008107813A5 - - Google Patents

Claims (14)

An image forming apparatus having a plurality of image forming units,
A plurality of cartridges for replenishing developer;
A plurality of replenishing members for replenishing a developer from a plurality of the cartridges to the plurality of image forming units;
One driving means for driving the plurality of supply members;
Depending on the amount of developer stored in a plurality of the cartridges, by selectively operating a plurality of the reinforcing member by said drive means, control means for supplying a developer from a plurality of the cartridges An image forming apparatus comprising: Wherein, when driving a plurality of said reinforcing member corresponding to each of the plurality of cartridges by said drive means at the same time, depending on the amount of developer stored in a plurality of the cartridges, a plurality The image forming apparatus according to claim 1, wherein the supply member is selectively operated. When the amount of the developer contained in any one of the plurality of cartridges is a predetermined amount or more, the control means determines the amount of the developer or a predetermined amount thereof. more cartridge by driving the corresponding reinforcing member, an image forming apparatus according to claim 2, wherein the controller controls so as not to drive the reinforcing member corresponding to the other cartridge. The control means corresponds to a plurality of cartridges in which the amount of developer accommodated is a predetermined amount or more when there are a plurality of cartridges having a predetermined amount or more. 4. The image forming apparatus according to claim 3, wherein the supply member to be controlled is controlled to be driven by the driving unit in a predetermined order. Wherein when less than the amount the amount was all the predetermined developer contained in each of said cartridge, by controlling to drive the reinforcing member corresponding to all of the cartridge The image forming apparatus according to claim 3. The image forming apparatus according to claim 2, wherein the control unit selects the driving of the replenishing member in an order of increasing amount of developer contained in the plurality of cartridges. Said control means, said calculating a load generated when driving the reinforcing member, as calculated load is less than the allowable load of the driving means for driving the replenishing member, said driven simultaneously by the drive means The image forming apparatus according to claim 6 , wherein a supply member is selected. The plurality of the cartridge, an image forming apparatus according to any one of claims 1 to 7, characterized in that it is detachably attached to the image forming apparatus. An image forming apparatus having a plurality of image forming units having a developing unit for containing a developer,
A plurality of cartridges for replenishing developer;
A plurality of replenishing members for replenishing developer from a plurality of cartridges to the plurality of developing sections;
One driving means for driving the plurality of supply members;
Control means for selectively operating the plurality of replenishing members by the driving means in accordance with the amount of developer accommodated in the developing section to control replenishment of developer from the plurality of cartridges; An image forming apparatus comprising: Wherein, when driving a plurality of said reinforcing member corresponding to each of the plurality of cartridges by said drive means at the same time, depending on the amount of developer stored in a plurality of said developing unit, The image forming apparatus according to claim 9 , wherein the plurality of supply members are selectively operated. Wherein, according to claim 10, characterized in that choose to drive giving priority to the reinforcing member corresponding to the image forming unit small amount of developer contained in a plurality of said developing unit Image forming apparatus. The image forming apparatus according to claim 9 , wherein the plurality of image forming units are detachable from the image forming apparatus. An image forming apparatus having a plurality of image forming units containing a developer,
A plurality of cartridges for replenishing developer;
A plurality of replenishing members for replenishing a developer from a plurality of the cartridges to the plurality of image forming units;
One driving means for driving the plurality of supply members;
Depending on the amount of developer contained in a plurality of quantities and the plurality of cartridges of the developer is accommodated in the image forming section, by selectively operating a plurality of the reinforcing member by said driving means And an image forming apparatus having control means for controlling the developer to be replenished from the plurality of cartridges. It said control means sets the priority of the supply operation of a plurality of pre Kiho sheet member based on the amount of developer stored in the plurality of the image forming unit, and is accommodated in a plurality of the cartridges the image forming apparatus according to claim 1 3, characterized in that for setting whether to operate any of a plurality of pre Kiho sheet member based on the amount of the developer are.