Abstract: Image forming apparatus and methods are disclosed which include identifying a first ink density of ink in an ink tank by a density sensor unit disposed in the ink tank. The image forming apparatus and methods also include identifying an ink weight of ink in an intermediate reservoir by a weight sensor unit. The image forming apparatus and methods also include determining a second ink density of the ink in the intermediate reservoir based at least on the identified first ink density by the density sensor unit and the identified ink weight of the ink in the intermediate reservoir by the weight sensor unit.

Abstract: A method includes moving a first end portion of a charging member with respect to a photoconductive member to obtain a first electrical discharge event corresponding to conduction of an electrical current from the charging member to the photoconductive member. The method also includes identifying a first adjustment value corresponding to a distance in which the first end portion moved toward the photoconductive member to obtain the first electrical discharge event. The method also includes moving a second end portion of the charging member with respect to the photoconductive member to obtain a second electrical discharge event corresponding to conduction of an electrical current from the charging member to the photoconductive member. The method also includes identifying a second adjustment value corresponding to a distance in which the second end portion moved toward the photoconductive member to obtain the second electrical discharge event.

Abstract: A method for determining a pump setpoint for delivering a desired volumetric flow rate of a substance through a channel comprises measuring a first volumetric flow rate through the channel for a first pump setpoint. The pump setpoint for delivering the desired volumetric flow rate is determined based on previously obtained performance curves of the pump and a flow resistance of the channel. Each performance curve represents the relation between flow rate and pressure at the pump's exit for a different setpoint. The flow resistance of the channel is determined based on said first volumetric flow rate and on the performance curves of the pump.

Abstract: A method includes moving a first end portion of a charging member with respect to a photoconductive member to obtain a first electrical discharge event corresponding to conduction of an electrical current from the charging member to the photoconductive member. The method also includes identifying a first adjustment value corresponding to a distance in which the first end portion moved toward the photoconductive member to obtain the first electrical discharge event. The method also includes moving a second end portion of the charging member with respect to the photoconductive member to obtain a second electrical discharge event corresponding to conduction of an electrical current from the charging member to the photoconductive member. The method also includes identifying a second adjustment value corresponding to a distance in which the second end portion moved toward the photoconductive member to obtain the second electrical discharge event.

Abstract: Capacitances are measured for a level measurement capacitive sensor (18) spanning from a lower end to a higher end of a fluid level measurement range (30), a first capacitive calibration sensor (20) below the fluid level measurement range (30), and a second capacitive calibration sensor (22) above the fluid level measurement range (30). A degree to which the lower end of the fluid level measurement range (30) is immersed in a first fluid and the upper end of the fluid level measurement range (30) is immersed in a second fluid is determined based on a capacitance of the level measurement capacitive sensor (18), a first calibration value characterizing the first fluid and derived from a capacitance of the first capacitive calibration sensor (20), and a second calibration value characterizing the second fluid and derived from a capacitance of the second capacitive calibration sensor (22).

Abstract: An image forming system includes a segregation tank to store a first imaging oil having a first percent purity, a reservoir to store a second imaging oil having a second percent purity, a slope identification module to identify a first slope value, and a slope comparison module to determine whether the first slope value is at least one of equal to, greater than, and less than a threshold slope value within a threshold slope range. The image forming system also includes a ratio adjustment module to obtain a variable ratio value corresponding to a ratio of a first amount of the first imaging oil to a second amount of the second imaging oil based on a determination by the slope comparison module.