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Ricoh B230 Service Manual

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SM i B227 
Read This First 
Safety and Symbols 
Replacement Procedure Safety 
 
ƒ  Turn off the main power switch and unplug the machine before beginning any of 
the replacement procedures in this manual. 
When taking apart the bridge unit, first take the unit out of the copier. 
  
Symbols Used in this Manual 
This manual uses the following symbols. 
: See or Refer to 
: Screws 
: Connector 
: Clip ring 
: E-ring
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B227 ii  SM 
B227 
TABLE OF CONTENTS 
Read This First............................................................................................................ i 
Safety and Symbols ......................................................................................... i 
Replacement Procedure Safety .................................................................... i 
Symbols Used in this Manual ........................................................................ i 
Table of Contents...................................................................................................... ii 
1. Replacement and Adjustment.................................................................... 1 
Bridge Unit Control Board ............................................................................... 1 
Bridge Unit Drive Motor ................................................................................... 2 
Tray Exit Sensor .............................................................................................. 3 
Relay Sensor................................................................................................... 4 
2. Detailed Section Descriptions................................................................... 5 
Mechanical Component Layout ....................................................................... 5 
Drive Layout .................................................................................................... 6 
Electrical Component Layout .......................................................................... 7 
Electrical Component Descriptions.................................................................. 8 
Junction Gate Mechanism ............................................................................... 9
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    							Bridge Unit Control Board 
SM 1 B227 
B227 
Bridge Unit 
1.  REPLACEMENT AND ADJUSTMENT 
1.1  BRIDGE UNIT CONTROL BOARD 
 
1. Bridge unit (
 Installation Procedure in the base copier manual) 
2.  Rear cover [A] (
 x 2) 
3.  Bridge unit control board [B] (
 x 3,  x 4)
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    							Bridge Unit Drive Motor 
B227 2  SM 
1.2  BRIDGE UNIT DRIVE MOTOR 
 
1. Bridge unit (
 Installation Procedure in the base copier manual) 
2. Rear cover 
3.  Bracket [A] (
 x 3,  x 2) 
4.  Bridge unit drive motor [B] (
 x 4,  x 1)
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    							Tray Exit Sensor 
SM 3 B227 
B227 
Bridge Unit 
1.3  TRAY EXIT SENSOR 
 
1. Bridge unit (
 Installation Procedure in the base copier manual) 
2.  Rear cover (Rear Cover) 
3.  Paper tray [A] 
4.  Exit guide [B] (
 x 1) 
 
5.  Tray exit sensor [C] (
 x 1)
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    							Relay Sensor 
B227 4  SM 
1.4 RELAY SENSOR 
 
1. Bridge unit (
 Installation Procedure in the base copier manual) 
2.  Paper tray [A] 
3.  Relay sensor [B] (
 x 1)
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    							Mechanical Component Layout 
SM 5 B227 
B227 
Bridge Unit 
2.  DETAILED SECTION DESCRIPTIONS 
2.1 MECHANICAL COMPONENT LAYOUT 
 
 
1. Upper Exit Roller 
2. Tray Exit Sensor 
3. Junction Gate 
4. 1st Transport Roller 5. Relay Sensor 
6. 2nd Transport Roller 
7. Left Exit Roller 
8. Paper Tray
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    							Drive Layout 
B227 6  SM 
2.2 DRIVE LAYOUT 
 
1.  Left Exit Roller 
2. 2nd Transport Roller 
3. 1st Transport Roller 
4.  Upper Exit Roller  
5.  Bridge Unit Drive Motor
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    							Electrical Component Layout 
SM 7 B227 
B227 
Bridge Unit 
2.3 ELECTRICAL COMPONENT LAYOUT 
 
1.  Left Guide Switch 
2. Right Guide Switch 
3.  Junction Gate Solenoid 
4.  Tray Exit Sensor 
5.  Bridge Unit Control Board 
6.  Bridge Unit Drive Motor 
7. Relay Sensor
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    							Electrical Component Descriptions 
B227 8  SM 
2.4 ELECTRICAL COMPONENT DESCRIPTIONS 
 
Symbol Name Function Index No. 
Motors 
M1  Drive Motor  Drives the bridge unit.  6 
Sensors 
S1  Tray Exit  Checks for misfeeds.  4 
S2 Relay  Checks for misfeeds.  7 
Switches 
SW2  Right Guide  Detects when the right guide is opened.  2 
SW3  Left Guide  Detects when the left guide is opened.  1 
Solenoids 
SOL1 Junction Gate Moves the junction gate to direct the 
paper to the upper tray (on top of the 
bridge unit) or to the finisher. 3 
PCBs 
PCB1 Bridge Unit Control 
Board Controls the bridge unit.  5
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