Ricoh B230 Service Manual
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![Page 1236
B793 56 SM
Punch Unit Position Correction
These operations (skew correction before punching, and punch unit position correction)
increase the accuracy of the punch alignment.
The trailing edge of the sheet passes the finisher entrance sensor [A].
The paper position slide unit moves the paper position sensor [B] forward to the edge of the
paper.
The paper position sensor detects the position of the paper edge and sends this information
to the punch unit board. The machine uses the detected...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1235.png "Page 1236
B793 56 SM
Punch Unit Position Correction
These operations (skew correction before punching, and punch unit position correction)
increase the accuracy of the punch alignment.
The trailing edge of the sheet passes the finisher entrance sensor [A].
The paper position slide unit moves the paper position sensor [B] forward to the edge of the
paper.
The paper position sensor detects the position of the paper edge and sends this information
to the punch unit board. The machine uses the detected...")
![Page 1237
Punch Unit
SM 57 B793
B793
Booklet
Finisher
These SP codes adjust the punch hole alignment:
ƒ SP6128 Adjusts the punch positions in the direction of paper feed.
ƒ SP6129 Adjusts the punch position perpendicular to the direction of feed.
For more, see Section 5. Service Tables.
2.12.2 PAPER POSITION DETECTION
The paper position sensor slide motor [A] extends and retracts the paper position slide that
holds the paper position sensor [B].
The paper position sensor detects the position of...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1236.png "Page 1237
Punch Unit
SM 57 B793
B793
Booklet
Finisher
These SP codes adjust the punch hole alignment:
ƒ SP6128 Adjusts the punch positions in the direction of paper feed.
ƒ SP6129 Adjusts the punch position perpendicular to the direction of feed.
For more, see Section 5. Service Tables.
2.12.2 PAPER POSITION DETECTION
The paper position sensor slide motor [A] extends and retracts the paper position slide that
holds the paper position sensor [B].
The paper position sensor detects the position of...")
![Page 1238
B793 58 SM
2.12.3 PUNCH UNIT MOVEMENT
The punch movement motor [A] extends and retracts the punch unit to put it at the correct
position for punching.
The punch movement HP sensor [B] detects the position when it retracts, switches off the
punch movement motor, and stops the punch unit at its home position.
The punch drive motor [C] fires the punches that punch holes in the paper below.
2.12.4 PUNCH SELECTION AND FIRING
The punch drive motor [A] turns the small, notched encoder wheel [B]...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1237.png "Page 1238
B793 58 SM
2.12.3 PUNCH UNIT MOVEMENT
The punch movement motor [A] extends and retracts the punch unit to put it at the correct
position for punching.
The punch movement HP sensor [B] detects the position when it retracts, switches off the
punch movement motor, and stops the punch unit at its home position.
The punch drive motor [C] fires the punches that punch holes in the paper below.
2.12.4 PUNCH SELECTION AND FIRING
The punch drive motor [A] turns the small, notched encoder wheel [B]...")
![Page 1239
Punch Unit
SM 59 B793
B793
Booklet
Finisher
The timing for 2-hole punching [E] is different from 3-hole punching [F].
When the punch unit is at the punching position, the punch motor turns until the encoder
detects the starting position for 2-hole or 3-hole punching.
ƒ This is the ‘1’ position in the diagrams (the first diagram is for 2-hole punching, and the
second diagram is for 3-hole punching).
Then, the punch drive motor turns counter-clockwise to the ‘2’ position. This movement...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1238.png "Page 1239
Punch Unit
SM 59 B793
B793
Booklet
Finisher
The timing for 2-hole punching [E] is different from 3-hole punching [F].
When the punch unit is at the punching position, the punch motor turns until the encoder
detects the starting position for 2-hole or 3-hole punching.
ƒ This is the ‘1’ position in the diagrams (the first diagram is for 2-hole punching, and the
second diagram is for 3-hole punching).
Then, the punch drive motor turns counter-clockwise to the ‘2’ position. This movement...")
![Page 1240
B793 60 SM
The punch hopper full sensor [B] does the following:
ƒ Signals that the hopper is full when it detects the top of the stack of punchouts that
have collected in the hopper.
ƒ Detects when the punch hopper is set properly.](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1239.png "Page 1240
B793 60 SM
The punch hopper full sensor [B] does the following:
ƒ Signals that the hopper is full when it detects the top of the stack of punchouts that
have collected in the hopper.
ƒ Detects when the punch hopper is set properly.")
![Page 1245
Rear Cover
SM 1 B800
B800
Paper Fed
Unit 1. REPLACEMENT AND ADJUSTMENT
1.1 REAR COVER
1. Securing brackets [A] (
x 1 each)
2. Rear cover [B] (
x 2)](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1244.png "Page 1245
Rear Cover
SM 1 B800
B800
Paper Fed
Unit 1. REPLACEMENT AND ADJUSTMENT
1.1 REAR COVER
1. Securing brackets [A] (
x 1 each)
2. Rear cover [B] (
x 2)")
![Page 1246
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]](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1245.png "Page 1246
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]")
SM i B800 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. Symbols Used in this Manual This manual uses the following symbols. : See or Refer to : Screws : Connector : Clip ring : E-ring
Rear Cover B800 ii SM B800 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 Rear Cover ...................................................................................................... 1 Motors and Clutches....................................................................................... 2 Lift Motors .................................................................................................... 2 Upper and Lower Paper Feed Clutches ....................................................... 2 Paper Feed Motor ........................................................................................ 3 Main Board ...................................................................................................... 4 Paper Feed Unit .............................................................................................. 5 Pick-up, Paper Feed and Separation Rollers .................................................. 6 Lift, Paper End, and Relay Sensors ................................................................ 7 2. Detailed Descriptions....................................................................................... 8 Component Layout.......................................................................................... 8 Mechanical Component Layout .................................................................... 8 Electrical Component Layout ....................................................................... 9 Paper Feed ................................................................................................... 10 Paper Size Detection......................................................................................11 Reverse Roller and Pick-Up Roller Release.................................................. 12 Paper Lift ....................................................................................................... 13 Paper Height and End Detection ................................................................... 14 Paper Height Detection .............................................................................. 14 Paper End and Bottom Plate ...................................................................... 15
Rear Cover SM 1 B800 B800 Paper Fed 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 Fed 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, make 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 Fed 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 unit 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)