Abstract: In one example, a system can receive an order from a client device. The system can also receive data about a set of print queues at a set of printers via a network. The system can then determine a set of queue times corresponding to the set of print queues. Each respective queue time can be determined based on a corresponding print queue. The system can generate an estimated wait time for the order based on the set of queue times. The system can then transmit the estimated wait time to the client device for display in a graphical user interface to a user associated with the order.

Abstract: Elevator hoistway door closer device that increases the closing force on the door as the door approaches the door closed position. A elevator hoistway door closer includes a reel having a groove in its side that terminates in a flat edge beyond a breakover angle. The groove may have a first portion of essentially constant diameter and a second portion having a conical helix shape. The third portion includes the breakover angle and may terminate in a flat edge. There may be an elongate tensile element received by the first and second portions and the third portion defined by the breakover angle flat edge, and that has a free end for attachment to a fixed point. There may be a spring for rotating the reel and attracting the elongate tensile element by wrapping the elongate tensile element around the first and second portions of the channel and over the breakover angle and flat edge of the third portion.

Abstract: Elevator hoistway door closer device that increases the closing force on the door as the door approaches the door closed position. A elevator hoistway door closer includes a reel having a groove in its side that terminates in a flat edge beyond a breakover angle. The groove may have a first portion of essentially constant diameter and a second portion having a conical helix shape. The third portion includes the breakover angle and may terminate in a flat edge. There may be an elongate tensile element received by the first and second portions and the third portion defined by the breakover angle flat edge, and that has a free end for attachment to a fixed point. There may be a spring for rotating the reel and attracting the elongate tensile element by wrapping the elongate tensile element around the first and second portions of the channel and over the breakover angle and flat edge of the third portion.

Abstract: A method and apparatus for facilitating closure of an elevator hoistway door generally comprises the steps of affixing a door closer device to the hoistway door and securing a cable, extended from the door closer device, to a terminal off the hoistway door. The door closer device comprises a sheave repeatedly circumscribed by an elongate channel for receiving the cable therein and a spring adapted to oppose extension of the cable from said door closer device. The channel, which generally prevents overlap of the cable during retraction into the door closer device, preferably forms a conical helix during the final retraction of the cable, thereby increasing the force exerted upon the door by the cable as the door approaches the door closed position.