Image forming apparatus provided with an attraction charger controlled by one or more ambient conditions

An image forming apparatus comprising:

• an image bearing member;
• means for forming an image on said image bearing member;
• carrying means for carrying an image receiving material;
• transfer means for electrostatically transferring the image from said image bearing member onto the image receiving material carried on said carrying means, said transfer means effecting its image transfer operations on the same image receiving material a plurality of times;
• electrostatic attracting means for electrostatically attracting the image receiving material onto said carrying means before the image transfer operation;
• and
• control means for controlling an output of said attracting means and an output of said transfer means in accordance with an ambient condition, said control means increasing the output of said transfer means for an initial image transfer on the same image receiving material with an increase of the output of said attracting means.