Ricoh Mp C3000 Service Manual

							Rear Cover 
SM 1 B800 
B800 
Paper Feed  Unit 1. REPLACEMENT AND ADJUSTMENT 
1.1 REAR COVER 
 
1.  Securing brackets [A] (
 x 1 each) 
2.  Rear cover [B] (
 x 2)  
						

							Motors and Clutches 
B800 2  SM 
1.2 MOTORS AND CLUTCHES 
1.2.1 LIFT MOTORS 
 
1.  Rear cover (
 Rear Cover) 
2.  Lift motors [A][B] (
 x 2,  x 1 each) 
1.2.2  UPPER AND LOWER  PAPER FEED CLUTCHES 
 
1.  Rear cover (
 Rear Cover) 
2.  Upper paper feed gear unit [A] (
 x 3,  x 1) 
3.  Upper paper feed clutch bracket [B] (
 x 1,  x 2, bushing x 1) 
4.  Upper paper feed clutch [C]   
						

							Motors and Clutches 
SM 3 B800 
B800 
Paper Feed  Unit 
 
5.  Lower paper feed clutch bracket [D] (
 x 1, bushing x 1,  x 2) 
6.  Lower paper feed clutch [E] (
 x 1) 
1.2.3  PAPER FEED MOTOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Paper feed motor [A] (
 x 1,  x 2) 
 
ƒ  When installing the paper feed motor, ma ke sure that the gear of the paper 
feed motor holds the timing belt [B].  
						

							Main Board 
B800 4  SM 
1.3 MAIN BOARD 
 
1.  Rear cover (
 Rear Cover) 
2.  Main board [A] (All 
s,  x 2, snap pin x 2)  
						

							Paper Feed Unit 
SM 5 B800 
B800 
Paper Feed  Unit 
1.4 PAPER FEED UNIT 
 
1.  Right cover [A] (
 x 2) 
2.  Vertical transport guide [B ] of the paper feed unit 
 
3.  Pull the tray 3 (or 4). 
4.  Paper guide [C] 
5.  Paper feed unit [D] (
 x 2,  x 1,  x 2) 
When replacing the paper feed uni t of tray 4, do the same.  
						

							Pick-up, Paper Feed and Separation Rollers 
B800 6  SM 
1.5 PICK-UP, PAPER FEED AND SEPARATION 
ROLLERS 
 
1.  Paper feed unit (
 Paper Feed Unit) 
2.  Roller holder [A] (
x 1) 
3.  Pick-up roller [B]  
4.  Paper feed roller [C] 
5.  Separation roller [D] (
x 1)  
						

							Lift, Paper End, and Relay Sensors 
SM 7 B800 
B800 
Paper Feed  Unit 
1.6 LIFT, PAPER END, AND RELAY SENSORS 
 
1.  Paper feed unit (
 Paper Feed Unit) 
2.  Vertical transport sensor bracket [A] (
 x 1) 
3.  Vertical transport sensor [B] (
x 1) 
4.  Paper feed sensor bracket [C] (
 x 1) 
5.  Paper feed sensor [D] (
 x 1) 
6.  Paper end sensor filler [E] 
7.  Paper end sensor [F] (
 x 1) 
8.  Lift sensor [G] (
 x 1)  
						

							Component Layout 
B800 8  SM 
2. DETAILED  DESCRIPTIONS 
2.1 COMPONENT LAYOUT 
2.1.1  MECHANICAL COMPONENT LAYOUT 
 
 
1. Upper tray 
2. Paper size switch: Upper tray 
3. Pick-up roller: Upper tray 
4. Paper feed roller 
5. Vertical transport roller  6. Separation roller 
7. Tray lift arm 
8. Lift arm shaft 
9. Bottom plate  
10. End plate 
 
ƒ  Listed above are the components of tray 1 (upper tray). Tray 2 (lower tray) has 
the same components as tray 1.  
						

							Component Layout 
SM 9 B800 
B800 
Paper Feed  Unit 
2.1.2  ELECTRICAL COMPONENT LAYOUT 
 
 
1. Main board 
2. Feed motor 
3. Upper tray lift motor 
4. Lower tray lift motor 
5. Upper lift sensor 
6. Upper paper feed clutch 
7. Pick-up solenoid  8. Lower paper feed clutch 
9. Vertical transport guide switch 
10. Paper end sensor 
11. Vertical transport sensor 1 
12. Paper feed sensor 
13. Paper size switch: Lower tray 
14. Paper size switch: Upper tray 
 
ƒ  Listed above are the components of tray 1 (u pper tray), except for the right cover 
switch and anti-condensation heater (there is  only one each of these for the entire 
unit). Tray 2 (lower tray) has the same components as tray 1.  
						

							Paper Feed 
B800 10  SM 
2.2 PAPER FEED 
 
Paper Feed Mechanism 
An FRR (feed and reverse roller)  feed mechanism is used (
 Paper Feed Methods in 
the Core Technology Manual). 
Drive Path  
Tray 3 (upper tray) and tray 4 (lower tray)  have identical paper feed systems. The feed 
motor [A] drives all the rollers in the unit.  The paper feed clutch [B] controls the pick-up 
roller [C], paper feed roller [D], and separation roller [E].