Abstract: A printer comprising a printer main body, a cover, a sprocket for delivering a sheet from a sheet roll, a platen roller used in printing on the sheet, a thermal head for printing on the sheet, a driving gear mechanism for rotating the sprocket platen roller, and a gear mechanism for rotating, by the driving gear mechanism, the ribbon core of an ink ribbon cassette mounted on the cover, the printer main body being provided with the sprocket and platen roller, the cover being provided with the thermal head, wherein the platen roller is disposed downstream of the sprocket and it is arranged that when the cover is closed, the core gear of the ink ribbon cassette meshes with a gear of the gear mechanism to eliminate the backlash of the platen gear.

Abstract: A printer comprising a printer main body (11), a cover (50), a sprocket (12) for delivering a sheet from a sheet roll (16), a platen roller (13) used in printing on the sheet, a thermal head (51) for printing on the sheet, a drive mechanism for rotating the sprocket (12) and platen roller (13), and a gear mechanism for rotating, by the drive mechanism, the ribbon core of an ink ribbon cassette (60) mounted on the cover (50), the printer main body (11) being provided with the sprocket (12) and platen roller (13), the cover (50) being provided with the thermal head (51), wherein the platen roller (13) is disposed downstream of the sprocket (12) and it is arranged that when the cover (50) is dosed, the core gear (65) of the ink ribbon cassette (60) meshes with a gear (34) to elliminate the backlash of the platen gear (15).

Abstract: A bonding member 1 comprising a metallic plate 2 formed as a small piece onto which a hot melt adhesive layer 3 is formed at least one side of said metallic plate 2, and a gypsum board mounting method for mounting a gypsum board 5 using the bonding member 1, comprising: fixing said bonding member 5 temporarily; pushing said gypsum board 5, heating the metallic plate 2 with electromagnetic induction to melt said hot melt adhesive layer 3; and thereby allowing the gypsum board 5 to be bonded easily without noise. The bonded gypsum board 5 can be recycled because it can be peeled off easily with melting the adhesive layer 3 without damage of the board.