Carriage activated pump for inkjet printer

摘要

An inkjet printer includes a printhead; a carriage for moving the printhead back and forth in a carriage scan direction across the printing region; an output roller that is downstream of the printing region for moving recording medium away from the printing region, the output roller including a shaft; a pump that is coaxially disposed around the shaft of the output roller; and a restraining lever that disconnects the pump from power when the carriage is not in contact with the restraining lever.

主权项

1. An inkjet printer comprising:
a printhead; a carriage for moving the printhead back and forth in a carriage scan direction across a printing region; an output roller that is downstream of the printing region for moving recording medium away from the printing region, the output roller including a shaft; a peristaltic pump that is coaxially disposed around the shaft of the output roller, the peristaltic pump including:
a housing;a flexible tubing member;a pump roller;a pump cam for forcing the pump roller to move along the flexible tubing member while compressing the flexible tubing member; anda pump coupling member extending from the pump cam, wherein the pump coupling member is coaxially disposed around the shaft of the output roller, and wherein the shaft of the output roller is configured to rotate independently of the pump coupling member; a restraining lever that disconnects the pump from power when the carriage is not in contact with the restraining lever; a media advance motor; a shaft coupling member that is affixed to the shaft of the output roller; and a slidable coupler that is configured to selectively link the pump coupling member to the shaft coupling member.