Olivetti d-Color 201MF Theory Of Operation page 96

Theory of Operation Ver. 1.0 Sep. 2008
B. Operation flow
1. It starts controlling when the front-edge of the paper reaches to the predetermined
position before the fusing roller.
2. The fusing speed is decelerated so that a loop is formed in the paper between the
2nd image transfer roller and the fusing roller.
3. When the paper loop more than specified, the fusing loop detect sensor will be ON.
The fusing speed will increase when the sensor turns ON.
4. When the paper sags less than specified, the fusing loop detect sensor will be OFF.
The fusing speed will decrease when the sensor turns OFF.
5. Operations explained above will keep the amount of the paper loop within specified
range so the speed difference between the fusing and the paper conveyance for
image transfer will be adjusted.
6. The fusing loop control will finish when the back-edge of the paper passes the pre-
determined position on the back of the transfer roller.
Y109670-2 Theory of Operation
18. Fusing section
89