An image forming apparatus includes a flexible charging member, which forms a nip portion between itself and an image bearing member. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated alkyltoluenes having lower contents of the 2-phenyl alkyltoluene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Wordline decoding circuitry is included for interchanging the DRAM array between single-cell and twin-cell array operation. The affinity scope, which is maintained on the affinity client, defines a routing scope within the distributed transactional service system, into which consequent requests in the session from the user application are dispatched. The display unit displays an alarm image at an intersection of an alarm date and an alarm time point of each set alarm.