Abstract: A replaceable unit for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for holding toner. A rotatable media feed roll is mounted on the housing and is positioned to engage a corresponding media feed roll in the image forming device when the replaceable unit is installed in the image forming device for forming a media feed nip with the corresponding media feed roll in the image forming device when the replaceable unit is installed in the image forming device.

Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.

Abstract: Systems and methods for using multi-criteria state machines to manage alarming states and pre-alarming states of a hazard detection system are described herein. The multi-criteria state machines can include one or more sensor state machines that can control the alarming states and one or more system state machines that can control the pre-alarming states. Each state machine can transition among any one of its states based on sensor data values, hush events, and transition conditions. The transition conditions can define how a state machine transitions from one state to another. The hazard detection system can use a dual processor arrangement to execute the multi-criteria state machines according to various embodiments. The dual processor arrangement can enable the hazard detection system to manage the alarming and pre-alarming states in a manner that promotes minimal power usage while simultaneously promoting reliability in hazard detection and alarming functionality.

Abstract: A toner cartridge according to one embodiment includes a housing having first and second alignment guides that extend outward from a first side and a second side of the housing, respectively, and that run along a front-to-rear dimension of the housing. Third and fourth alignment guides extend outward from the first side of the housing. The third alignment guide is spaced toward the front of the housing from the fourth alignment guide. Bottom surfaces of the third and fourth alignment guides are unobstructed to sit on top of a corresponding guide surface in an image forming device to control a vertical position of the toner cartridge in the image forming device. The bottom surfaces of the third and fourth alignment guides are aligned with each other in a vertical dimension of the housing and are positioned higher than the first and second alignment guides.

Abstract: A thermostat is described that includes a rechargeable battery, a graphical user interface and a wireless network communication capabilities. During installation, in cases where the rechargeable battery is below a first threshold, the installation procedure is limited so as to avoid energy intensive installation steps which may not be supported by the low battery level. An example of an installation step that is avoided due to low battery level is set up of wireless communication. According to some embodiments, if the battery level is very low during initial installation, the installation process is halted while the battery is charged. An indication such as a flashing LED may be displayed so as to indicate to the user that the battery is being charged.

Abstract: A toner cartridge according to one example embodiment includes a housing having a reservoir for holding toner and an outlet in fluid communication with the reservoir for exiting toner from the toner cartridge. A rotatable media feed roll is positioned on an exterior portion of the housing to engage a corresponding media feed roll in the image forming device when the toner cartridge is installed in the image forming device for forming a media feed nip with the corresponding media feed roll in the image forming device when the toner cartridge is installed in the image forming device.

Abstract: Hazardous or dangerous conditions may be monitored. A mode may be set to a state indicative of the condition being present. It may then be determined that the hazardous or dangerous condition has eased. An indication of the hazardous or dangerous condition easing may be output in response to the determination. Such an indication may be output as synthesized speech.

Abstract: Systems and methods are provided for efficiently controlling energy-consuming systems, such as heating, ventilation, or air conditioning (HVAC) systems. For example, an electronic device used to control an HVAC system may encourage a user to select energy-efficient temperature setpoints. Based on the selected temperature setpoints, the electronic device may generate or modify a schedule of temperature setpoints to control the HVAC system.

Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.

Abstract: A replaceable imaging unit according to one example embodiment includes a photoconductor unit positioned at the front of a housing of the imaging unit. First and second alignment guides extend outward at the same height from first and second sides of the housing, respectively, on the photoconductor unit and run parallel to each other along a front-to-rear dimension of the housing. Each of the first and second alignment guides includes a front contact member at a front end thereof and a rear contact member at a rear end thereof. The front contact members are positioned further outward sideways than the rear contact members. Bottom surfaces of the front and rear contact members are unobstructed to permit the bottom surfaces of the front and rear contact members to sit on top of corresponding guide rails in the image forming device to control a vertical position of the imaging unit.

Abstract: A thermostat includes a control unit, a plurality of connection ports, and a user interface operatively coupled to the control unit an having an electronic display. The control unit may be configured and programmed to operate the wire insertion sensing circuits to identify a set of the plurality of connection ports into which corresponding ones of the plurality of HVAC wires have been inserted; cause the electronic display to display a photograph of the plurality of connection ports as they actually appear to a user; and cause the electronic display to visually highlight the set of the plurality of connection ports into which the corresponding ones of the plurality of HVAC wires have been inserted.

Abstract: A toner cartridge according to one embodiment includes a housing having first and second alignment guides that extend outward from a first side and a second side of the housing, respectively, and that run along a front-to-rear dimension of the housing. Third and fourth alignment guides extend outward from the first side of the housing. The third alignment guide is spaced toward the front of the housing from the fourth alignment guide. Bottom surfaces of the third and fourth alignment guides are unobstructed to sit on top of a corresponding guide surface in an image forming device to control a vertical position of the toner cartridge in the image forming device. The bottom surfaces of the third and fourth alignment guides are aligned with each other in a vertical dimension of the housing and are positioned higher than the first and second alignment guides.

Abstract: Various systems and methods related to smart-home networking are presented. A low-power smart home device may be exclusively battery powered. The low-power smart home device may transmit data via a low-power communication protocol to a spokesman smart home device. The spokesman smart home device may receive the data transmitted via the low-power communication protocol. The spokesman smart home device may be a doorbell, a thermostat, a hazard detector, or a wall switch. The spokesman smart home device may connected to household wiring that provides power. The spokesman smart home device may translate the data from the low-power communication protocol to a relatively high-power communication protocol. The spokesman smart home device may transmit the data, via the relatively high-power communication protocol, to a cloud-based server system.

Abstract: Various arrangements for assessing an installation of a smart home device are presented. An orientation of the smart home device may be analyzed to determine whether the orientation of the smart home device is unsuitable for one or more features of the smart home device to function properly. An indication of whether the orientation of the smart home device is unsuitable may be output, such as by the smart home device using voice or lighting.

Abstract: Hazardous or dangerous conditions may be monitored. A mode may be set to a state indicative of the condition being present. It may then be determined that the hazardous or dangerous condition has eased. An indication of the hazardous or dangerous condition easing may be output in response to the determination. Such an indication may be output as synthesized speech.

Abstract: Modeling the behavior of an enclosure for use by a control system of an HVAC system is described. A model for the enclosure that describes the enclosure's behavior for use by the control system is updated based on weather forecast data. The weather forecast data can include predictions more than 24 hours in the future, and can include predictions on temperature, humidity and/or dew point, solar output, precipitation. The model for the enclosure can also be updated based on additional information and data. The model for the enclosure can be updated based also on an enclosure model stored in a database, and/or enclosure information from a user. The model can be updated based on active testing of the enclosure which can be performed automatically or in response to user input. The testing can include heating and/or cooling the enclosure at times when the enclosure is not likely occupied.

Abstract: Security keypad device for detecting tampering includes a keypad, a high power wireless module for communicating data via a local area network, a low power wireless module communicating data via a personal area network, and a cellular module for communicating data via a wide area network. The device further includes an active infrared position sensor comprising of a light source for emitting infrared light and an infrared sensor for detecting reflected infrared light. The active infrared position sensor is configured to sense the position of the device based on detecting the reflected infrared light. The device further includes an accelerometer configured to measure acceleration forces and a processor. The processor is configured to determine that the position of the device changed based on positional data from the active infrared position sensor or acceleration data from the accelerometer.

Abstract: Embodiments of the invention provide thermostat controls having improved tactile feedback. According to one embodiment, a thermostat includes a bottom member, a switch, a top member, and a motion guiding member or assembly that operationally couples the top member with the bottom member so that the top member is inwardly pressable by a user relative to the bottom member to allow the thermostat to receive input from the user by contacting the switch with a component of the top member or the bottom member. The motion guiding member or assembly contacts the top member near its outer periphery to control the inward motion of the top member relative to the bottom member to provide the improved tactile feedback.

Abstract: A toner cartridge according to one example embodiment includes a housing having a reservoir for containing toner therein. An exit port in fluid communication with the reservoir faces downward on a front of the housing near a first side of the housing. A portion of a main interface gear for providing rotational power to a toner delivery system is exposed on the front of the housing near a top of a second side of the housing and engagable with a corresponding drive gear in the image forming device. A projection projects from the front of the housing and is spaced from the exit port toward the first side of the housing. The projection extends further forward than a frontmost portion of the exit port. A front of the projection is unobstructed for engaging a shutter on a developer unit when the toner cartridge is inserted into the image forming device.