Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensing

A replaceable unit for an electrophotographic image forming device, comprising:

• a housing having a reservoir for storing toner;
• a rotatable shaft positioned within the reservoir and having an axis of rotation;
• and
• a first permanent magnet and a second permanent magnet connected to the shaft and rotatable around the axis of rotation in response to rotation of the shaft, the first permanent magnet and the second permanent magnet passing near at least a portion of an inner wall of the housing forming the reservoir during rotation of the first and second permanent magnets, a first pole of the first permanent magnet is directed radially outward away from the shaft and a second pole of the second permanent magnet is directed radially outward away from the shaft, a polarity of the first pole is opposite a polarity of the second pole,
• wherein an amount of angular offset between the first permanent magnet and the second permanent magnet varies depending on an amount of toner in the reservoir.

A replaceable unit for an electrophotographic image forming device, comprising:

• a housing having a reservoir for storing toner;
• a rotatable shaft positioned within the reservoir and having an axis of rotation;
• and
• a first permanent magnet, a second permanent magnet and a third permanent magnet connected to the shaft and rotatable around the axis of rotation in response to rotation of the shaft, the first permanent magnet, the second permanent magnet and the third permanent magnet passing near at least a portion of an inner wall of the housing forming the reservoir during rotation of the first, second and third permanent magnets, the second permanent magnet leading the first permanent magnet in an operative rotational direction of the shaft and the third permanent magnet trailing the first permanent magnet in the operative rotational direction of the shaft,
• wherein an amount of angular offset between the first permanent magnet and the second permanent magnet and an amount of angular offset between the first permanent magnet and the third permanent magnet vary depending on an amount of toner in the reservoir.