Ricoh B286 Service Manual page 317

23 Paper Interval Step 3
When the pressure roller center and end thermistor detect a temperature in the
Step 3 range (SP1940 013), the setting of this SP is activated to set the length of
the interval between sheets in the paper path.
[1.0 to 5.0/3.5/0.1]
The default setting (3.5) is the variable for Step 3 multiplied by the constant set
for Step 2 of the machine:
! B286: 480 mm. The default interval is 1680 mm (3.5 x 480 mm).
! B289: 168 mm. The default interval is 588 mm (3.5 x 168 mm).
Setting a smaller or larger number decreases or increases the length of the
interval with this simple calculation. This standard interval can be modified
slightly with SP1923.
1941 Press FB Ctrl Switch by Temp Diff
This SP sets the temperature differential that determines when the machine
adjusts for pressure roller feedback control when the difference between the
temperatures of the center and end of the pressure roller is greater than 20°C
(Default: 20).
[0 to 50/20/5]
Example
If this SP is set to "50": and there is a difference between the temperatures at the
center and end of the pressure roller after more than 50 readings, then pressure
roller feedback control shifts to the supplement mode.
SM 5-47
SP1-xxx Feed
B286/B289