Control method of power receiving part, power supply control circuit, rotating member and processing box

Abstract

The invention relates to a control method of a power receiving part, and also relates to a power supply control circuit for implementing the control method, and a rotating member and a processing box provided with the power receiving part. The power receiving part is matched and connected with a screw rod, and the screw rod applies a thrust force to the power receiving part when rotating positively, so as to enable the power receiving part to be pushed out; the screw rod applies a pulling force to the power receiving part when rotating reversely, so as to enable the power receiving part to be pulled back; in an outstretching state, the thrust force applied to the power receiving part by the screw rod in a first time period is greater than the thrust force applied to the power receiving part in a second time period; and in a retraction stage, the pulling force applied to the power receiving part by the screw rod in a third time period is greater than the pulling force applied to the power receiving part in a fourth time period. By adopting the control method, the power receiving part can be integrated and disintegrated with a power output part smoothly, and a stuck phenomenon that the power receiving part cannot stretch out or cannot be disintegrated with the power output part is avoided.

Description

technical field [0001] The present invention relates to the field of electrophotographic imaging, and in particular to a control method of a power receiving member combined with a power output member arranged in an electrophotographic imaging device to receive power, and also relates to a power supply control circuit for realizing the control method and a power supply control circuit with The swivel and process box for this power receiver. Background technique [0002] In the field of electrophotographic imaging, a laser printer is one of common electrophotographic imaging devices, and generally, a process cartridge containing a developer is detachably installed in the laser printer. [0003] The imaging process of the process cartridge in the laser printer is divided into charging, exposure, development, transfer, fixing and cleaning, wherein the charging process is to use a charging member, such as a charging roller, to charge a photosensitive member coated with a photosen...

AI Technical Summary

Problems solved by technology

[0007] like figure 2 As shown, the power receiving part 212 needs to extend out a distance k to realize the combination with the power output part. In theory, according to the rotation speed of the motor 2111, the pitch of the screw 2112 and the set motor running time, the power receiving part 212 stretches The extended distance will be greater than k, but in practice, since the power receiving part 212 has been combined with the power output part after the extended distance k, the power receiving part 212 will stop moving under the blocking of the power output part, but this When the screw rod 2112 is still rotating in the forward direction, and still maintains the original rotation speed, the screw rod 2112 will always rotate in the forward direction in the threaded hole 212b1 during the period from the stop of the power receiving part 212 to the end of the set motor running time. , the combination between the power receiving member 212 and the end face of the power output member will become tighter and tighter. If the screw rod 2112 is too tight, the screw rod 2112 cannot rotate in the opposite direction, thus causing the stuck phenomenon that the power receiving part 212 cannot be disengaged from the power output part

[0008] Similarly, in order to ensure that the power receiving part 212 is completely disengaged from the power output part, the designer will also set the reverse running time of the motor to be longer than the theoretical value. When the power receiving part 212 returns to the initial position, it will stop moving. At this time, the screw rod 2112 is still rotating in the opposite direction, and still maintains the original rotation speed. Therefore, the combination between the screw rod 2112 and the power receiving member 212 will become tighter and tighter. When the power receiving member 212 needs to be stretched out again, It is likely that the screw rod 2112 cannot rotate in the forward direction due to the tight connection between the screw rod 2112 and the power receiving member 212, thus causing the stuck phenomenon that the power receiving member 212 cannot extend

Images