Siemens Aktiengesellschaft

Siemens Nixdorf Informationssysteme Aktiengesellschaft

Otmar Irro

Helmut Naeser

Georg Bohmer

Replaceable separating agent metering device for a fuser roller

Printer providing a freely accessible printer frame

An interchangeable stuffing cassette for a cassette acceptance means of a typewriter or printer, has a stuffing space and a ribbon which is transported out of and into the stuffing space by means of an external drive. Outside of the cassette acceptance means, the stuffing space is closed by a flap. A slot by means of which the ribbon is stretched tight is situated in the flap. Upon insertion into the cassette acceptance means, the flap is pivoted to the side, whereby the stuffing space is opened and the ribbon is released.

Stuffing cassette with external drive

For use in a printing machine, such as an office typewriter, employing a replaceable printing head to be mounted on a carriage, there is provided a printing head fastening arrangement for releasably clamping the printing head to the carriage and permitting adjustable spacing of the printing head relative to the cooperating print support for containing the recording medium. The inventive arrangement enables the fastening and adjustment function to be integrated such that both functions can be carried out in one step. To this end, a rotatable pin is disposed upstanding from the carriage and provided with an operating element, which is resiliently seated relative to the printing head, for selectively engaging against a support surface formed on the printing head to clamp the printing head against the carriage. An eccentric is also disposed on the pin which engages against the walls of a recess formed in the printing head, such that rotation of the pin and operating element causes the eccentric to relatively displace the printing head along the carriage toward or away from the print support.

Growing community of inventors

Feldkirchen-Westerham, Germany

Otmar Irro