A printing system includes an information processing apparatus and a printing apparatus in which character image data transferred from the information processing apparatus is registered in the printing apparatus and the printing apparatus prints the same character by using the registered character image data. Such arrangements are useful, e. The green composite laminate 11 provided with the grooves 16 is sintered under conditions where the low-temperature sinterable glass ceramic powder is sintered and the green first and second shrinkage-restraining layers 14a and 14b are removed to prepare a plurality of ceramic multilayer substrates. One side of the substrate may include a sensing element and another side of the substrate may include sensing electronics. The sheet stacking portion is switched from the insulation state to a grounding state in which the sheet stacking portion is grounded through a ground portion by a switching portion through an operation of drawing the sheet storing portion. The portable handheld computing device may be a Handspring device, a Palmpilot device, or any other suitable portable computing device.