Ricoh B230 Service Manual

Original Feed Drive 
SM 9 B789 
B789 
 
3.  Pick-up solenoid [B] (
 x 2,  x 1) 
1.4.3 INVERTER SOLENOID 
 
1.  Rear cover (see Rear Cover) 
2.  Harness guide (see Pick-up Solenoid) 
3.  Inverter solenoid [A] (
 x 2,  x 1,  x 1, gear x 1, gear cover x 1)  

Original Feed Drive 
B789 10  SM 
1.4.4 FEED CLUTCH 
 
1.  Rear cover (see Rear Cover) 
2.  Harness guide (see Pick-up Solenoid) 
3.  Bracket [A] (
 x 2,  x 3,  x 1, bushing x 1, spring x 1) 
 
4.  Slide the bracket. 
5.  Feed clutch [B] (
 x 1)  

Original Feed Drive 
SM 11 B789 
B789 
1.4.5 TRANSPORT MOTOR 
 
1.  Rear cover (see Rear Cover) 
2.  Harness guide (see Pick-up Solenoid) 
3.  Left cover sensor with bracket [A] (
 x 1,  x 1) 
4.  Transport motor with bracket [B] (
 x 2,  x 1, spring x 1) 
5.  Transport motor [C] (
 x 2)  

Component Layout 
B789 12  SM 
2. DETAILED DESCRIPTIONS 
2.1 COMPONENT LAYOUT 
2.1.1  MECHANICAL COMPONENT LAYOUT 
 
 
1. Separation Roller 
2. Paper Feed Belt 
3. Pick-up Roller 
4. Original Trailing Edge Sensor 
5. Original Tray 
6. Original Length Sensor 1 
7. Original Length Sensor 2 
8. Original Length Sensor 3 
9. Inverter Roller 10. Junction Gate 
11. Exit Roller 
12. Original Exit Sensor 
13. Transport Roller 
14. Registration Roller 
15. Registration Sensor 
16. Skew Correction Roller 
17. Skew...

Component Layout 
SM 13 B789 
B789 
2.1.2   ELECTRICAL COMPONENT LAYOUT 
Sensors 
 
1. Original Width Sensor 
2. Skew Correction Sensor 
3. Registration Sensor 
4. Cover Sensor  
5. Original Set Sensor 
6. Exit Sensor 
7. Original Sensor 
8. Original Length Sensor 
9. DF Position Sensor  

Component Layout 
B789 14  SM 
Drive Components 
 
1. Transport Motor 
2. Feed Clutch 
3. Pick-up Solenoid 
4. Inverter Solenoid 
5. Feed Motor 
6. Main Board 
Electrical Component Descriptions 
Symbol Name Function Index No.
Motors 
M1 Feed Drives the feed belt, separation, pick-up, and 
reverse table rollers. 5 
M2  Transport  Drives the transport and exit rollers  1 
      
Sensors 
S9  DF Position  Detects whether the DF is lifted or not.  9 
S5 Skew Correction Detects the leading edge of the...

Component Layout 
SM 15 B789 
B789 
S1 Original Width 
Sensor - S Detects the original width - S.  1 
S2 Original Width 
Sensor - M Detects the original width - M.  1 
S3 Original Width 
Sensor - L Detects the original width - L.  1 
S4 Original Width 
Sensor - LL Detects the original width - LL.  1 
S14 Original Length - 
S Detects the original length - S.  8 
S13 Original Length - 
M Detects the original length - M.  8 
S12 Original Length - 
L Detects the original length - L.  8 
S7  Original Set...

Component Layout 
B789 16  SM 
PCBs 
PCB1 Main Interfaces the sensor signals with the copier, 
and transfers the magnetic clutch, solenoid 
and motor drive signals from the copier. 6 
      
 
2.1.3 DRIVE LAYOUT 
 
 
1. Feed Motor 
2. Pick-up Roller 
3. Separation Roller 
4. Feed Belt 
5. Skew Correction Roller 
6. Feed Clutch 
7. Transport Motor 
8. Exit Roller  
9. Registration Roller 
 
ƒ  Feed Motor: Drives the feed belt, separation, pick-up, and skew correction rollers. 
ƒ  Transport Motor: Drives...

Basic Operation 
SM 17 B789 
B789 
2.2 BASIC OPERATION 
2.2.1  ORIGINAL SET AND SIZE DETECTION 
 
The original set sensor [A] detects if the original is set or not. The original sensor [B] 
detects if the original is on the original tray or not (this lets the machine know as early as 
possible, whether there is another original on the tray). 
The original size detection mechanism consists of the four original width sensors ([F]: 
Width Sensor S, [G]: Width Sensor M, [H] Width Sensor L, [I]: Width Sensor...

Basic Operation 
B789 18  SM 
11 x 15/SEF  ON ON ON  -  ON ON ON 1 - 
10 x 14/SEF   ON  ON  -  -  ON  ON  ON  O  - 
8.5 x 14/SEF (LG)  ON  -  -  -  ON  ON  ON  O2 - 
8.5 x 13/SEF (F4)  ON  -  -  -  ON  ON  ON 2 O 
8.25 x 13/SEF   ON        ON  ON  ON  -  - 
8 x 13/SEF (F)  ON  -  -  -  ON  ON  ON  -  - 
8.5 x 11/SEF (LT)  ON  -  -  -  ON  -  -  O3 O6 
8.5 x 11/LEF (LT)  ON  ON  ON  -  -  -  -  O4 O7 
7.25 x 10.5/SEF (US 
EXE) ON -  -  - ON -  - O - 
10.5 x 7.25/SEF (US 
EXE) ON ON ON  -  -  -  - 4 - 
10...