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Ricoh B230 Service Manual

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    							Motors 
SM 5 B801 
B801 
LCIT 
1.4.2 TRAY MOTOR 
 
1.  Rear cover (
 Tray Lift Motor) 
2.  Tray motor [A] (
 x 1,  x 2) 
 
ƒ  When installing the tray motor, make sure that the gear of the tray motor 
holds the timing belt [B].
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    							Main Board 
B801 6  SM 
1.5 MAIN BOARD 
 
1.  Rear cover (
 Tray Lift Motor ) 
2.  Main board [A] (All 
s,  x 2, snap x 2)
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    							Clutches 
SM 7 B801 
B801 
LCIT 
1.6 CLUTCHES 
1.6.1  STACK TRANSPORT CLUTCH 
 
1.  Rear cover (
 Tray Lift Motor) 
2.  Stack transport clutch [A] (
 x 1,  x 1) 
1.6.2  PAPER FEED CLUTCH 
 
1.  Rear cover (
 Tray Lift Motor) 
2.  Paper feed gear unit [A] (
 x 3,  x 1) 
3.  Paper feed clutch bracket [B] (
 x 1,  x 2, bushing x 1) 
4.  Paper feed clutch [C]
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    							Paper Feed Unit 
B801 8  SM 
1.7 PAPER FEED UNIT 
 
1.  Right cover [A] 
2.  Open the vertical guide plate [B] 
3.  Guide plate [C] 
 
4.  Pull the LCT drawer [D]. 
5.  Paper feed unit [E] (
 x 2 x 1)
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    							Pick-up, Feed and Separation Rollers 
SM 9 B801 
B801 
LCIT 
1.8  PICK-UP, FEED AND SEPARATION ROLLERS 
 
1.  Paper feed unit (
 Paper Feed Unit) 
2.  Separation roller [A] (
 x 1) 
3.  Roller holder [B] (
 x 1) 
4.  Feed roller [C] and pick-up roller [D]
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    							Paper Feed, Paper End, Lift and Relay Sensors 
B801 10  SM 
1.9  PAPER FEED, PAPER END, LIFT AND RELAY 
SENSORS 
 
1.  Paper feed unit (
 Paper Feed Unit) 
2.  Vertical transport sensor bracket [A] (
 x 1,  x 1) 
3.  Relay sensor [B] 
4.  Paper feed sensor bracket [C] 
5.  Paper feed sensor [D] 
6.  Paper end feeler [E] 
7.  Paper end sensor holder [F] (hook x 3) 
8.  Paper end sensor [G] (
 x 1, hook x 3) 
9.  Lift sensor (
 x 1, hook x 3)
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    							Component Layout 
SM 11 B801 
B801 
LCIT 
2. DETAILED  DESCRIPTIONS 
2.1 COMPONENT LAYOUT 
2.1.1  MECHANICAL COMPONENT LAYOUT 
 
 
1. Pick-up Roller 
2. Paper Feed Roller 
3. Relay Sensor 
4. Separation Roller 
5. Paper Height Sensors 1, 2, 3 6. Lower Limit Sensor 
7. Paper End Sensor 2 
8. End Fence HP Sensor  
9. Paper Height Sensors 4, 5
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    							Component Layout 
B801 12  SM 
2.1.2  ELECTRICAL COMPONENT LAYOUT 
 
 
1. Main board 
2. Stack transport clutch 
3. Tray motor 
4. Paper feed clutch 
5. Pick-up solenoid 
6. Right tray lock solenoid 
7. Vertical guide switch 
8. Lift sensor 
9. Relay sensor  
10. Paper end sensor 1 11. Paper feed sensors 
12. Side fence sensor 
13. Tray lift motor 
14. Paper height sensor 1, 2, 3 
15. Tray set switch 
16. Lower limit sensor 
17. Left tray set switch 
18. End fence HP sensor 
19. Paper end sensor 2 
20 Paper height sensors 4, 5
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    							Component Layout 
SM 13 B801 
B801 
LCIT 
2.1.3  ELECTRICAL COMPONENT DESCRIPTIONS 
Symbol Name Function Index 
No. 
Motors 
M1  Tray  Drives all rollers.  3 
M2  Tray Lift  Drives the paper tray up or down.  13 
Sensors 
S1 Paper Feed Sensor Detects whether the paper is jammed at 
LCT. 11  
S2 Relay Detects the copy paper coming to the relay 
roller and checks for misfeeds. 9 
S3 Paper End 1 
(paper feed side) Informs the copier/printer when the paper in 
the right side (paper feed side) of the tray 
has been used up. If there is a paper stack 
in the left side (paper storage side), this is 
moved into the paper feed side. If there is 
no paper stack in the left side, paper end is 
indicated. 10 
S4 Lift Detects when the paper is at the correct 
paper feed height. 8 
S5-S7 Paper Height 1, 2, 
3 Detects the amount of paper remaining in 
the right side of the tray. 14 
S8 Lower Limit Detects when the tray is completely 
lowered, to stop the LCT motor. 16 
S9  End Fence HP Detects when the left fence is at its home 
position 18 
S10 Side Fence Detects whether the side fence is open or 
closed. (The fence opens when the left-tray 
paper stack is moving to the paper feed 
side.) 12 
S11 Paper End 2 
(paper storage 
side) Informs the copier/printer when there is no 
paper in the left side (paper storage side) of 
the tray. 19 
S12 
S13 Paper Height 4, 5 Detects the amount of paper remaining in 
the left side of the tray. 20 
Switches 
SW1  Vertical Guide  Detects whether the right cover is open.  7 
SW2  Tray Set Switch  Detects whether the tray is correctly set.  15
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    							Component Layout 
B801 14  SM 
Symbol Name Function Index 
No. 
SW3 Left Tray Set 
Switch Detects whether the left tray is correctly set.  17 
Magnetic Clutches 
MC1  Paper Feed  Drives the paper feed roller.  4 
MC2 Stack Transport Drives the rear fence of the paper storage 
side. 2 
Solenoids 
SOL1  Pick-up   Pushes the pick-up roller up or down.  5 
SOL2  Tray Lock  Locks or unlocks the right tray.  6 
PCBs 
PCB1 Main Controls the LCT and communicates with 
the copier/printer. 1
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