Dfbelt Drive Motor Speed Adjustment - Ricoh FT4430 Service Manual

7. DF Belt Drive Motor Speed Adjustment
This adjustment should be done when the DF PCB [A] is replaced.
Turn off the main switch.
1 .
2 . Remove the DF cover (4 screws, 2 collars).
3 .
Lower the DF unit.
4 . Turn on DIP switch nos. 101-2 and 101-4 of the DF main board.
5 . Turn on the main switch.
The belt drive motor will start turning, and the left two digits of the motor
speed will be displayed in the original counter. To display the second two
digits of the motor speed, press the Counter Reset key.
For example, if the motor speed is 2500 rpm, "00" will be displayed on the
original counter [B] when the Counter Reset key is pressed; "25" will be
displayed when it is not pressed.
6 . Adjust the motor speed to 2500
main board.
7 Turn off the main switch, turn off DIP switch nos. 101-2 and 101-4 to the
normal position (DIP switch no. 101-1 is on and all others are off), and
reassemble.
7-35
16 April '88