An X-ray computed tomography apparatus according to an embodiment includes processing circuitry. The muffler is designed to muffle a wide range of frequencies, minimize pressure reduction, improve fluid flow, and improve compressor efficiency. The controller is also configured to control movement of the print head in a second direction opposite to the first direction as the carrier ribbon and substrate are also moved in the second direction to position the print head relative to the carrier ribbon so that a second portion of the image is printed on a second are of the substrate adjacent to the first area of the substrate. A suction member is moveably coupled to the lever arrangement. Upon delivery of the mailpiece, a return receipt postcard portion of the label may be removed and forwarded to the sender of the mailpiece as a return receipt. It further relates to a process to make such fibrous material, structures or articles.