Abstract: An Imaging device includes a print monitoring engine to monitor an ink level of an ink cartridge installed in the imaging device and track a print count for each ink level. The print count for each ink level indicates a number of prints printed during a one percent drop in the ink level. Further, a print capacity estimation engine is to determine an average print rate for the ink cartridge based on the print count for each one percent drop in ink level and determine a print capacity estimate of the ink cartridge based at least on the average print rate and the current ink level. Further, an Ink cartridge controlling engine is to deactivate the ink cartridge upon occurrence of a predetermined event and activate the deactivated ink cartridge in response to an activation input from a user, wherein the activation input is based on the print capacity estimate.

Abstract: Examples for estimating quantity of print media available in a device, are described. In one example, the device comprising includes a series of proximity sensors to sense level of a stack of print media. The sensors are mounted on an internal vertical wall of the media tray with each of the plurality of sensors mounted at a different vertical height. Based on the sensing by the sensors, an estimate count of the print media available in a media tray of the device is generated.

Abstract: An Imaging device includes a print monitoring engine to monitor an ink level of an ink cartridge installed in the imaging device and track a print count for each ink level. The print count for each ink level indicates a number of prints printed during a one percent drop in the ink level. Further, a print capacity estimation engine is to determine an average print rate for the ink cartridge based on the print count for each one percent drop in ink level and determine a print capacity estimate of the ink cartridge based at least on the average print rate and the current ink level. Further, an Ink cartridge controlling engine is to deactivate the ink cartridge upon occurrence of a predetermined event and activate the deactivated ink cartridge in response to an activation input from a user, wherein the activation input is based on the print capacity estimate.

Abstract: Examples for estimating quantity of print media available in a device, are described. In one example, the device comprising includes a series of proximity sensors to sense level of a stack of print media. The sensors are mounted on an internal vertical wall of the media tray with each of the plurality of sensors mounted at a different vertical height. Based on the sensing by the sensors, an estimate count of the print media available in a media tray of the device is generated.

Abstract: Example for generating an outline preview of a printed medium are described. In one example, presence of a printed medium atop a supporting pane fitted onto an enclosed housing of a scanning system is ascertained using a plurality of sensors arranged in an array beneath the supporting pane. Thereafter, position of the printed medium on the supporting pane based on proximity of the printed medium with each of the plurality of sensors, is estimated- Based on the estimation, the position of the printed medium in relation to a specified scan area setting of a printable format is correlated. The scan area setting may be considered as indicative of size of a target medium on which the printable format is to be printed. An outline preview of the printed medium, with respect to an outline of the target medium based on the correlated position of the printed medium, is generated.