Abstract: A pressure support device such as a CPAP machine, is provided, which includes a housing, and a controller enclosed by the housing. The controller operates the CPAP machine independently or in combination with an accessory such as, for example and without limitation, a humidifier. A user interface is operably coupled to the controller and includes a primary display, a secondary display and a single control. The single control is operable in a first mode of operation to adjust operating parameters of the CPAP machine, and in a second mode of operation to adjust operating parameters of the humidifier. The secondary display preferably comprises a dead front, which is operational (e.g., without limitation, visible) only in the second mode of operation. A method of operating a pressure support device is also disclosed.

Abstract: A solid ink printer selectively enables solid ink sticks to be inserted into an insertion port. The solid ink printer includes a plurality of feed channels, each feed channel terminating at a melting device that heats solid ink sticks to a melting temperature at one end of the feed channel, an insertion port operatively connected to another end of each of the plurality of feed channels, the insertion port being configured with an opening through which solid ink sticks are inserted for movement through one of the feed channels operatively connected to the insertion port, a member positioned proximate the opening in the insertion port, an actuator operatively connected to the member and configured to move the member with respect to the opening of the insertion port, and a controller operatively connected to the actuator, the controller being configured to detect at least one event and operate the actuator to move the member to block solid ink sticks from entering through the opening of the insertion port.

Abstract: A solid ink printer selectively enables solid ink sticks to be inserted into an insertion port. The solid ink printer includes a plurality of feed channels, each feed channel terminating at a melting device that heats solid ink sticks to a melting temperature at one end of the feed channel, an insertion port operatively connected to another end of each of the plurality of feed channels, the insertion port being configured with an opening through which solid ink sticks are inserted for movement through one of the feed channels operatively connected to the insertion port, a member positioned proximate the opening in the insertion port, an actuator operatively connected to the member and configured to move the member with respect to the opening of the insertion port, and a controller operatively connected to the actuator, the controller being configured to detect at least one event and operate the actuator to move the member to block solid ink sticks from entering through the opening of the insertion port.

Abstract: A pressure support device (50) such as, such a CPAP machine (50), is provided, which includes a housing (51), and a controller (64) enclosed by the housing (51). The controller (64) operates the CPAP machine (50) independently or in combination with an accessory (70) such as, for example and without limitation, a humidifier (70). A user interface (66) is operably (74) coupled to the controller (64) and includes a primary display (72), a secondary display (74) and a single control (76). The single control (76) is operable in a first mode of operation to adjust operating parameters of the CPAP machine (50), and in a second mode of operation to adjust operating parameters of the humidifier (70). The secondary display (74) preferably comprises a dead front (74), which is operational (e.g., without limitation, visible) only in the second mode of operation. A method of operating a pressure support device (50) is also disclosed.