| 摘要 |
PROBLEM TO BE SOLVED: To enhance the workability of bonding and stripping works for a porous member which can damp noise. SOLUTION: In a printer 10 where noise can be reduced by means of a porous member lain on the bottom face of a lower case 28 having a step part defined by first, second and third reference faces 41, 42, 43, a counter bore 44 is formed between the bottom face of the lower case and the porous member by a plurality of ribs 45 spaced apart from each other. Top faces 45A of these ribs are flush with each other and the porous member can be bonded to these top faces. |
