The disclosure discloses a printer comprising a first control portion configured to control a feeder and a conducting device to perform printing on a recording medium. The invention also relates to a cleanser or detergent composition that includes the disintegrating particles, a water-soluble salt at a concentration lower than its saturated solubility, a surfactant and water. The gateway then forwards the message including the inter-working data to the service center, while requesting a delivery receipt. The masking image can screen the private image more effectively. The upper end is opposite of the rotatable bottom end.