Ricoh Neptune-P1 Service Manual page 431

6. Details
-11 to 15
1932-1 to 5
-6 to 10
-11 to 15
1934-1 to 5
-6 to 10
-11 to 15
1935-1 to -5
-6 to 10
-11 to 15
1941-1
6
1
1942-1 to 5*
1
1943-1 to 5*
1944-1 to -5
1948-1 to 5
-6 to 10
-11 to x15
1
* SP1942, SP1943, SP1944 do not operate if they are set to "0".
Pressure Roller Temperature Feedback
The graph and descriptions below (Plain Paper, Mode 3 selected) show how the temperature of the hot
roller is controlled using the difference in the temperatures of the center and end of the pressure roller.
The temperature readings are fed back by the pressure roller thermistors (one at the end and one at the
center of the pressure roller). These difference between these readings are compared with the value set for
SP1941 (Press FB Ctrl Switch by Temp Diff).
430
120 to 220 Film
60 to 180 Plain
60 to 180 Translucent
60 to 180 Film
0 to 50 Plain
0 to 50 Translucent
0 to 50 Film
0 to 50 Plain
0 to 50 Translucent
0 to 50 Film
0 to 50 Plain
0 to 50 Plain
0 to 50 Plain
0 to 50 Plain
60 to 180 Plain
60 to 180 Translucent
60 to 180 Film
Difference between Center, End Temperatures
< SP1941 (20
195 190
100 85
130 100
60 60
20 15
20 20
20 20
20 25
20 20
20 20
0 0
0 0
0 0
100 65
130 100
60 60
o
C) > SP1941 (20
185 185 175
60 60 60
60 60 60
60 60 60
25 20 20
20 20 20
20 20 20
30 20 20
20 20 20
20 20 20
20
5 15 0
20 20 0
10 5 0
60 60 60
60 60 60
60 60 60
o
C)