Cleaner, image forming apparatus using the cleaner, and voltage setting device

摘要

A cleaner includes at least two cleaning brush members to electrostatically remove toner on an object; a memory; a voltage applicator to apply a voltage to the cleaning brush members based on setup voltage values stored in the memory; a current detector to detect the amounts of currents flowing through contact portions of the object with the cleaning brush members; and a setup voltage changing device to change the setup voltage values based on the amounts of currents detected by the current detector. The voltage applicator applies a first voltage for removing residual toner or a second voltage higher than the first voltage in absolute value for removing non-transferred toner to at least one of the cleaning brush members, and the setup voltage changing device performs change of the setup voltage value for the second voltage prior to change of the setup voltage value for the first voltage.

主权项

1. A cleaner comprising:
at least two cleaning brush members to electrostatically remove residual toner and non-transferred toner on an object to be cleaned; a memory to store setup voltage values; a voltage applicator to apply voltages to the cleaning brush members based on the setup voltage values stored in the memory, wherein the voltage applicator applies a first voltage to at least one of the cleaning brush members when the cleaning brush member removes the residual toner on the object, and the voltage applicator applies a second voltage to the at least one of cleaning brush members when the cleaning brush member removes the non-transferred toner on the object, and wherein the second voltage has a same polarity as that of the first voltage, and is higher than the first voltage in absolute value; a current detector to detect amounts of currents flowing through contact portions of the object with the cleaning brush members; and a setup voltage changing device to change the setup voltages among setup voltages stored in the memory, based on the amounts of currents detected by the current detector, wherein the setup voltage changing device performs change of the setup voltage value for the second voltage prior to change of the setup voltage value for the first voltage, wherein the residual toner comprises toner particles remaining on the object after a transferring process, and wherein the non-transferred toner comprises toner from a toner test pattern.