B. Controlling the feed speed
1. Outline
The feed speed is controlled with the feed motor (M2) and torque limiter. The feed motor changes the feed speed according to the paper size but rotates at a constant speed and does not control the speed when feeding copies. The feed speed of the sorter is higher than the process speed of the copier. When one end of a sheet of copy is in the fixing unit of the copier and the other is between the feed rollers of the sorter at the same time, the feed roller rotating speed is reduced with the torque limiter. Feed roller
Torque limiter Figure 2-303
2. Process speed
Process speed is the speed of the copies from the time when they are received from the copier first until they are transferred fully into the sorter. This speed is the same as the process speed of the copier.
3. Paper transfer/delivery speed
The paper transfer/delivery speed is the feed speed after the copies is discharged from the fixing unit of the copier. This speed varies depending on the paper size as shown in the table below. Paper size A4, LTR A4-R, LTR-R B4, LEGAL Paper of fixed form other than above ones Paper of free form Feed speed 600mm/sec 650mm/sec 700mm/sec 575mm/sec
