Ricoh B230 Service Manual

 
SM 3-73 B230/B237 
Replacement 
Adjustment 
3.11.2 FUSING BELT, PRESSURE ROLLER, FUSING LAMPS 
 
1. Fusing unit (
 Fusing Unit) 
2.  Fusing upper cover [A] (
 x 4) 
 
3.  Cleaning unit [B] (
 x 2) 
 
4.  Lock lever front and rear [C] (snap ring x 1 each)  

 
B230/B237 3-74  SM 
 
5.  Top frame [D] (
 x 4,  x 1) 
 
6.  Front side stay [E] (
 x 2) 
 
7.  Release the pressure roller lamp cord [F] (
 x 1). 
 
ƒ  The color of the fusing lamp cord differs depending on the destination. 
ƒ Red: 220 - 240 V, Blue: 120 V 
8.  Rear side stay [G] (
 x 2)  

 
SM 3-75 B230/B237 
Replacement 
Adjustment 
 
9.  Heating roller fusing lamp front stay [H] (
 x 1) 
10.  Pressure roller lamp front stay [I] (
 x 1) 
 
11.  Heating roller fusing lamp rear stay [J] (
 x 1) 
12.  Pressure roller fusing lamp rear stay [K] (
 x 1) 
 
13.  Heating roller fusing lamp assembly [L] (
 x 4) 
14.  Pressure roller fusing lamp [M] (
 x 1)  

 
B230/B237 3-76  SM 
 
15.  Separation plate [N] (C Ringx 2, spring x 2) 
 
16.  Remove the pressure roller gear [O] (C Ring x 1), one-way clutch gear [P] (C Ring 
x 1) and idle gear [Q]. 
 
17.  Pressure roller [R] (bearing x 2)  

 
SM 3-77 B230/B237 
Replacement 
Adjustment 
 
18.  Fusing belt [S] with rollers (bearing x 4, insulating bushing x 2, C Ring x3) 
 
19. Fusing belt [T] 
When reassembling the fusing unit 
When replacing the fusing roller or pressure roller, you have to apply lubricant to the 
following places. 
Fusing Roller 
 
ƒ  Apply Barrierta S552R to the notch [A] at the front side of the fusing roller.  

 
B230/B237 3-78  SM 
ƒ  Apply Barrierta S552R to the edge [B] of the step at the rear side of the fusing roller. 
 
ƒ  Do not apply lubricant to the area [C] as shown. 
Pressure Roller 
 
ƒ  Apply Barrierta S552R to the front edge [A] and rear edge [B] of the pressure roller as 
shown above. 
3.11.3 HEATING, FUSING AND TENSION ROLLER 
 
1.  Fusing belt with rollers (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Fusing roller [A] 
3.  Tension roller [B] 
4.  Heating roller [C]  

 
SM 3-79 B230/B237 
Replacement 
Adjustment 
3.11.4 LUBRICANT ROLLER AND CLEANING ROLLER 
 
1.  Cleaning unit (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Remove the spring [A] and bushing [B] at the front and rear side of the cleaning 
unit. 
 
3.  Lubricant roller [C] 
4.  Cleaning roller [D]  

 
B230/B237 3-80  SM 
3.11.5 FUSING/PAPER EXIT FAN 
 
1.  Open the right door. 
2. Rear cover 
3.  Right rear cover (
  Right Rear Cover) 
4.  High voltage supply board bracket (
  High Voltage Supply Board Bracket) 
5.  Fusing/paper exit fan [A] (
 x 1,   x 1, hook x 2) 
When Reinstalling the Fan 
 
Make sure that the fusing/paper exit fan is installed with its decal facing to the right side.  

 
SM 3-81 B230/B237 
Replacement 
Adjustment 
3.11.6  HEATING ROLLER THERMOSTATS 
 
1.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Heating roller thermostats [A] (
  x 2 each) 
3.11.7  HEATING ROLLER THERMISTOR 
 
1.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Top frame (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
3.  Release the connector [A]. 
 
4.  Heating roller thermistor [B] (
 x 1)  

 
B230/B237 3-82  SM 
3.11.8  PRESSURE ROLLER THERMISTOR AND THERMOSTAT 
 
1.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Front and rear side stay (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
3.  Pressure roller fusing lamp rear stay [A] 
 
4.  Pressure roller fusing lamp front stay [B] (
  x 1) and screw [C] for the pressure 
roller lamp terminal 
5.  Pressure roller (
  Fusing Belt, Pressure Roller, Fusing Lamps)