PURPOSE: To obtain sufficient attracting force even in the case of continuous image forming mode by variably adjusting a load dispatching quantity to be impressed on an attracting electrification means for attracting recording material.

CONSTITUTION: When load dispatching to an attracting electrifier 7 is required following to an image forming sequence, the number of a present copy in continuous image forming is inquired by a control means (CPU) 30 to a counter 31 having the memory, and as a result of this, an appropriate load dispatching quantity to the attracting electrifier 7 is decided referring to the conversion table previously stored in a memory 32, based on the number data obtained from the counter 31. By the control output from the control means 30, a high voltage power source 33 to feed electric energy for attracting required for the attracting electrifier 7 is controlled, the load dispatching quantity fed from the power source 33 to the attracting electrifier 7 is variably adjusted so that attracting current value output from the attracting electrifier 7 is controlled to be previously decided appropriate value.