Abstract: A cassette comprising at least one portion for engaging with a cooperating locking element of a tape printer when said cassette is correctly located in said printer, said portion comprising an elongate conductive bar extending along said cassette in a direction perpendicular to a rotational axis of a supply roll housed in said cassette.

Abstract: A printing apparatus (301) comprising: a housing; a printing mechanism; a receiving bay for receiving a supply of image receiving medium; a cutter module (350) removably attached in said housing for cutting said image receiving medium, said cutter module comprising a movable blade and an actuator for actuating said movable blade; wherein said housing comprises an aperture (370), said cutter module being at least partially received in said aperture, and being removable via said aperture.

Abstract: A printing apparatus (301) comprising: a housing; a printing mechanism; a receiving bay for receiving a supply of image receiving medium; a cutter module (350) removably attached in said housing for cutting said image receiving medium, said cutter module comprising a movable blade and an actuator for actuating said movable blade; wherein said housing comprises an aperture (370), said cutter module being at least partially received in said aperture, and being removable via said aperture.

Abstract: A cassette comprising at least one portion for engaging with a cooperating locking element of a tape printer when said cassette is correctly located in said printer, said portion comprising an elongate conductive bar extending along said cassette in a direction perpendicular to a rotational axis of a supply roll housed in said cassette.

Abstract: A rotatable disc comprises a first zone in which a plurality of features, e.g. optical filters, are located at uniform angles from each other with respect to an axis of rotation of the disc and a second annular zone comprising sets of adjacent marks of a first type and of a second type. Each set may have a same total circumferential length, but the marks of a given type may have at least two different total circumferential lengths within a set of marks, or may be distinguishable by the relative position of marks of the different type to each other. The adjacent marks of the first and the second type may also form a code pattern that can be used for identifying the features. A method for adjusting the rotational orientation of the disc based on detecting the widths of the sectors is described.

Abstract: A rotatable disc comprises a first zone in which a plurality of features, e.g. optical filters, are located at uniform angles from each other with respect to an axis of rotation of the disc and a second annular zone comprising sets of adjacent marks of a first type and of a second type. Each set may have a same total circumferential length, but the marks of a given type may have at least two different total circumferential lengths within a set of marks, or may be distinguishable by the relative position of marks of the different type to each other. The adjacent marks of the first and the second type may also form a code pattern that can be used for identifying the features. A method for adjusting the rotational orientation of the disc based on detecting the widths of the sectors is described.