An ink jet recording apparatus is presented. The apparatus further has a transient detector for detecting a transient in the audio signal or a subband signal of the plurality of subband signals. The user then selects a set of merchants for which the funds are to be used via a user-interface. The assembly further includes first and second seal members configured to provide respective fluid seals between the inner diameters of the piston and clutch chamber and between the outer diameters of the piston and clutch chamber. The forcible toner consumption process includes a step of forming a toner image formed for forced consumption in a non-image region of the latent image bearer with an amount of toner corresponding to a difference between an image area ratio of a developed image and a prescribed threshold when the image area ratio of the developed image is lower than the prescribed threshold.