BELT TRANSFER DEVICE AND IMAGE FORMING DEVICE

摘要

The synthetic resistance, R1 = Vt1/I1 (Mohm), of a transfer belt (61) and a record sheet when transfer current I1(muA) runs between the transfer belt (61) and a record sheet when a first transfer bias voltage Vt1(V) is applied to a transfer roller (6b) from a high-voltage power source (6f), and the synthetic resistance, R2 = Vt2/I2 (Mohm), of a transfer belt (61) and a record sheet when transfer current I2(muA) runs between the transfer belt (61) and a record sheet when a second transfer bias voltage Vt2(V) is applied to a transfer roller (6b) from a high-voltage power source (6f), are so set as to provide a relation, R2/R1 = 7.(I2)<-0.5>.< >