Abstract: Transfer belt subassembly for a color printer includes a transfer belt, home position indicator, temperature sensor, and memory. The transfer belt subassembly is measured and characterized after fabrication, before being installed in a printer. Measurement and calibration data for the transfer belt is stored in memory as part of the subassembly, including data representing velocity characteristics of the transfer belt and temperature compensation factors used by an engine-controller in a method to govern the speed of the drive motor. When the transfer belt subassembly is inserted into a printer, the engine-controller is operative in response to data stored in the memory and sensed belt velocity and temperature data, providing adjustment of belt velocity and compensation for variations in the transfer belt speed. Using the predetermined characterizing data, precise alignment of the color planes with respect to one another is achieved for accurate color printing.

Abstract: A transfer belt subassembly for a color printer includes a transfer belt, a home position indicator, a temperature sensor and a memory. The transfer belt subassembly is measured and characterized after it fabrication and before being installed in a printer. The measurement and calibration data for the transfer belt is stored in the memory that is part of the subassembly. The memory stores data representing the velocity characteristics of the transfer belt and temperature compensation factors for use by a engine-controller of the printer to govern the speed of the drive motor. When the transfer belt subassembly is inserted into a printer, the engine-controller is operative in response to data stored in the memory and sensed belt velocity and temperature data to provide adjustment of belt velocity and compensation for variations in the transfer belt speed. By use of the predetermined characterizing data, precise alignment of the color planes with respect to one another is achieved for accurate color printing.