Abstract: A reproduction apparatus imaging material dispensing system has a replaceable and rotatable imaging material dispensing container from which an at least partially magnetically aitractable consumable imaging material is dispensed. There is an optical imaging material level sensing system mounted outside of the container for optically detecting the imaging material inside the container through translucent walls thereof and signaling an insufficient remaining quantity of imaging material. A magnetic brush cleaning system internally cleans imaging material from the inside of a annular translucent wall area of the container to provide and maintain relatively unobstructed such optical sensing. It can be provided by a stationary magnet mounted outside of but adjacent to the container to attract magnetically attractable imaging material to the inside of the container wall to form a magnetic cleaning brush to clean the translucent wall annular area.

Abstract: A copier or printer connecting with a standard commercial electrical power line source and having a limited peak power consumption can still provide an electrically powered sheet stapling system by driving the stapler from an electrical storage battery power supply, the batteries of which are electrically connecting with an integral low voltage electrical power supply of the reproduction apparatus only for low power slow recharging. The stapler is operable for stapling sheets, powered solely by the storage batteries, even when the copier or printer, including its integral low voltage electrical power supply, is completely turned off, i.e., fully disconnected from the power line source. This stapler can also be operated when the reproduction machine is fully operating at its peak power consumption, including the operation of other, internal, stapling, because this stapler's operation does not increase that peak power consumption.