Abstract: This image formation device is provided with a toner case (6), a developer body (83) and a developer (12). The toner case (6) includes a case body (22) having a discharge port (35), and a case-side shutter (28) for opening and closing the discharge port (35). A replenishing port (88) for accepting the toner is provided to the developer body (83). The developer (12) includes a developer-side shutter (98) for opening and closing the replenishing port (88). When the toner case (6) has been mounted on the developer (12) and the case-side shutter (28) is displaced from a position where the discharge port (35) is closed to a position where the discharge port (35) is open, the case-side shutter (28) pushes and displaces the developer-side shutter (98) from a position where the replenishing port (88) is closed to a position where the replenishing port (88) is open.

Abstract: A method for manufacturing a button-type alkaline cell comprises forming and working a negative electrode having an inner surface of Cu using a die having a ceramic portion while abutting the ceramic portion of the die with at least the Cu inner surface of the negative electrode. The thus formed and worked negative electrode is then combined with a positive electrode compound, a negative electrode compound, a separator, a positive electrode, a gasket and an alkaline electrolyte to form the button-type alkaline cell.