Ricoh B230 Service Manual
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![Page 1226
B793 46 SM
2.6 JOGGER UNIT
The jogger is used in corner-staple mode and in booklet mode.
For each sheet of paper when it arrives in the staple tray, the following is done.
ƒ The jogger motor [A] drives the jogger fences [B].
ƒ The positioning roller solenoid moves the positioning roller [C] onto the top of the sheet.
Then the lower transport motor turns on and the positioning roller rotates to push the
sheet of paper against the stopper (there are two stoppers: stopper L or stopper S the
one...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1225.png "Page 1226
B793 46 SM
2.6 JOGGER UNIT
The jogger is used in corner-staple mode and in booklet mode.
For each sheet of paper when it arrives in the staple tray, the following is done.
ƒ The jogger motor [A] drives the jogger fences [B].
ƒ The positioning roller solenoid moves the positioning roller [C] onto the top of the sheet.
Then the lower transport motor turns on and the positioning roller rotates to push the
sheet of paper against the stopper (there are two stoppers: stopper L or stopper S the
one...")
![Page 1227
Exit Guide Plate, Paper Feed Out
SM 47 B793
B793
Booklet
Finisher
2.7 EXIT GUIDE PLATE, PAPER FEED OUT
The exit guide plate [A] opens when a stapled stack is fed out.
Also it opens every time a sheet is fed to the staple tray, to prevent the paper running into
the exit roller during stacking.
The exit guide plate motor [B] drives the exit guide plate. The exit guide plate HP sensor [C]
detects when the guide plate is at home position.
The stack feed-out belt feeds out stapled stacks. The...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1226.png "Page 1227
Exit Guide Plate, Paper Feed Out
SM 47 B793
B793
Booklet
Finisher
2.7 EXIT GUIDE PLATE, PAPER FEED OUT
The exit guide plate [A] opens when a stapled stack is fed out.
Also it opens every time a sheet is fed to the staple tray, to prevent the paper running into
the exit roller during stacking.
The exit guide plate motor [B] drives the exit guide plate. The exit guide plate HP sensor [C]
detects when the guide plate is at home position.
The stack feed-out belt feeds out stapled stacks. The...")
![Page 1228
B793 48 SM
2.8 STAPLER UNIT MOVEMENT
The machine has only one stapler [A]. It does stapling for booklets and for corner stapling.
The stapler unit motor [B] moves the stapler from side to side. The stapler unit HP sensor
[C] detects when the stapler unit is at home position.
In corner staple mode, at the start of the job, the stapler moves to the position where the
stapler will be inserted.
In booklet mode, at the start of a job, the stapler moves to a starting position that depends
on the...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1227.png "Page 1228
B793 48 SM
2.8 STAPLER UNIT MOVEMENT
The machine has only one stapler [A]. It does stapling for booklets and for corner stapling.
The stapler unit motor [B] moves the stapler from side to side. The stapler unit HP sensor
[C] detects when the stapler unit is at home position.
In corner staple mode, at the start of the job, the stapler moves to the position where the
stapler will be inserted.
In booklet mode, at the start of a job, the stapler moves to a starting position that depends
on the...")
![Page 1230
B793 50 SM
When the stack is complete, stopper S moves away [D], and the machine feeds the stack to
the correct position for stapling. To do this, the upper clamp roller motor [E] rotates the
upper clamp roller.
2.9.3 LONGER THAN 8.5 X 14 INCHES
At the start of the set, the stapler moves to the center position. At this position, a bracket [A]
on the stapler unit pushes stopper L [B]. The pawl [C] on the stopper L assembly then
moves into position to catch the paper. The upper clamp roller...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1229.png "Page 1230
B793 50 SM
When the stack is complete, stopper S moves away [D], and the machine feeds the stack to
the correct position for stapling. To do this, the upper clamp roller motor [E] rotates the
upper clamp roller.
2.9.3 LONGER THAN 8.5 X 14 INCHES
At the start of the set, the stapler moves to the center position. At this position, a bracket [A]
on the stapler unit pushes stopper L [B]. The pawl [C] on the stopper L assembly then
moves into position to catch the paper. The upper clamp roller...")
![Page 1232
B793 52 SM
2.10 MOVING THE STACK TO THE FOLDING POSITION
First, the upper clamp roller feeds the stack down after the stack has been stapled. When
the lower clamp roller [A] catches the stack, the upper clamp roller stops, and the lower
clamp roller feeds the stack down.
The lower clamp roller is released just before the leading edge of the stack reaches the
bottom fence [B] (this fence consists of two pawls that catch the paper). The bottom fence
moves the stack to the folding position
The...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1231.png "Page 1232
B793 52 SM
2.10 MOVING THE STACK TO THE FOLDING POSITION
First, the upper clamp roller feeds the stack down after the stack has been stapled. When
the lower clamp roller [A] catches the stack, the upper clamp roller stops, and the lower
clamp roller feeds the stack down.
The lower clamp roller is released just before the leading edge of the stack reaches the
bottom fence [B] (this fence consists of two pawls that catch the paper). The bottom fence
moves the stack to the folding position
The...")
![Page 1233
Folder
SM 53 B793
B793
Booklet
Finisher
2.11 FOLDER
2.11.1 OVERVIEW
The fold plate pushes the stack into the nip between the fold rollers. The fold rollers feed
out the stack, then reverse to feed it back in again. Then, the fold rollers feed the stack out
of the folder, to the booklet tray.
2.11.2 FOLD PLATE
[A]: Bottom Fence Stack Stoppers. Catches the stack after it is released by the clamp
rollers.
[B]: Fold Plate Motor. Drives the timing belt and gears that move the fold plate.
[C]:...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1232.png "Page 1233
Folder
SM 53 B793
B793
Booklet
Finisher
2.11 FOLDER
2.11.1 OVERVIEW
The fold plate pushes the stack into the nip between the fold rollers. The fold rollers feed
out the stack, then reverse to feed it back in again. Then, the fold rollers feed the stack out
of the folder, to the booklet tray.
2.11.2 FOLD PLATE
[A]: Bottom Fence Stack Stoppers. Catches the stack after it is released by the clamp
rollers.
[B]: Fold Plate Motor. Drives the timing belt and gears that move the fold plate.
[C]:...")
![Page 1234
B793 54 SM
2.11.3 FOLD ROLLERS
[F]: Fold Roller Motor. Drives forward to feed out the stack at the fold, and then drives
forward again to feed out the folded stack.
ƒ This cycle can be repeated by changing the setting of SP6136.
[G]: Fold Rollers. Driven by the fold roller motor, this roller pair feeds out the stack at its fold,
reverses to feed in the stack to, and then feeds forward again (assisted by the fold unit exit
rollers – not shown) to feed out the stack to the lower tray.](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1233.png "Page 1234
B793 54 SM
2.11.3 FOLD ROLLERS
[F]: Fold Roller Motor. Drives forward to feed out the stack at the fold, and then drives
forward again to feed out the folded stack.
ƒ This cycle can be repeated by changing the setting of SP6136.
[G]: Fold Rollers. Driven by the fold roller motor, this roller pair feeds out the stack at its fold,
reverses to feed in the stack to, and then feeds forward again (assisted by the fold unit exit
rollers – not shown) to feed out the stack to the lower tray.")
![Page 1235
Punch Unit
SM 55 B793
B793
Booklet
Finisher
2.12 PUNCH UNIT
2.12.1 OVERVIEW OF OPERATION
Skew Correction Before Punching
The finisher entrance roller corrects for paper skew and then the punch unit moves across
to punch the holes at the correct position. Each sheet is punched one at a time.
Paper feeds out of the copier. The finisher entrance sensor [A] detects the leading edge of
the sheet.
The finisher entrance roller [B] stops rotating briefly while the copier exit rollers continue to...](http://img.usermanuals.tech/thumb/64/100811/w64_b230-service-manual-1509630901_d-1234.png "Page 1235
Punch Unit
SM 55 B793
B793
Booklet
Finisher
2.12 PUNCH UNIT
2.12.1 OVERVIEW OF OPERATION
Skew Correction Before Punching
The finisher entrance roller corrects for paper skew and then the punch unit moves across
to punch the holes at the correct position. Each sheet is punched one at a time.
Paper feeds out of the copier. The finisher entrance sensor [A] detects the leading edge of
the sheet.
The finisher entrance roller [B] stops rotating briefly while the copier exit rollers continue to...")
![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...")
Stacking for Booklet Stapling SM 51 B793 B793 Booklet Finisher previous section). When the stack is complete, the stapler moves to the rear-side position, and stopper L moves away. The machine feeds the stack to the correct position for stapling.
B793 52 SM 2.10 MOVING THE STACK TO THE FOLDING POSITION First, the upper clamp roller feeds the stack down after the stack has been stapled. When the lower clamp roller [A] catches the stack, the upper clamp roller stops, and the lower clamp roller feeds the stack down. The lower clamp roller is released just before the leading edge of the stack reaches the bottom fence [B] (this fence consists of two pawls that catch the paper). The bottom fence moves the stack to the folding position The fold roller motor [C] turns the lower clamp roller. The lower retracting motor [D] moves the lower clamp roller against and away from the stack. The lower clamp roller HP sensor [E] detects when the lower clamp roller is moved to the home position. The bottom fence lift motor [F] moves the bottom fence up and down. The bottom fence HP sensor [G] detects when the bottom fence is at home position.
Folder SM 53 B793 B793 Booklet Finisher 2.11 FOLDER 2.11.1 OVERVIEW The fold plate pushes the stack into the nip between the fold rollers. The fold rollers feed out the stack, then reverse to feed it back in again. Then, the fold rollers feed the stack out of the folder, to the booklet tray. 2.11.2 FOLD PLATE [A]: Bottom Fence Stack Stoppers. Catches the stack after it is released by the clamp rollers. [B]: Fold Plate Motor. Drives the timing belt and gears that move the fold plate. [C]: Fold Plate Cam. Controls the movement of the fold plate to the left (into the nip of the fold rollers) and right (toward the fold plate home position). [D]: Fold Plate HP Sensor. Controls operation of the fold plate motor. [E]: Fold Plate. Moves left and pushes the stack into the nip of the fold rollers and then moves right to retract.
B793 54 SM 2.11.3 FOLD ROLLERS [F]: Fold Roller Motor. Drives forward to feed out the stack at the fold, and then drives forward again to feed out the folded stack. ƒ This cycle can be repeated by changing the setting of SP6136. [G]: Fold Rollers. Driven by the fold roller motor, this roller pair feeds out the stack at its fold, reverses to feed in the stack to, and then feeds forward again (assisted by the fold unit exit rollers – not shown) to feed out the stack to the lower tray.
Punch Unit SM 55 B793 B793 Booklet Finisher 2.12 PUNCH UNIT 2.12.1 OVERVIEW OF OPERATION Skew Correction Before Punching The finisher entrance roller corrects for paper skew and then the punch unit moves across to punch the holes at the correct position. Each sheet is punched one at a time. Paper feeds out of the copier. The finisher entrance sensor [A] detects the leading edge of the sheet. The finisher entrance roller [B] stops rotating briefly while the copier exit rollers continue to rotate. This buckles the paper against the finisher entrance roller to correct skew. The finisher entrance roller starts to rotate again and feeds the sheet into the finisher. These SP codes adjust the skew operation in the punch unit: ƒ SP6130. This SP corrects the punch hole alignment. To do this, it corrects the skew of each sheet by adjusting the amount of time the finisher entrance roller remains off while the exit roller of the machine remains on. For more, see Section 5. Service Tables. ƒ SP6131. This SP determines whether the finisher entrance roller stops to correct skew when paper enters the finisher. You can use this SP to disable the skew correction. For more, see Section 5. Service Tables.
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 position of the paper edge to calculate the correct position for punching. The upper transport motor switches on and rotates the feed rollers [C] the prescribed distance to put the paper under the punch unit [D]. Using the result of the position calculation, the punch unit control board moves the punch unit [D] to the adjusted punch position. The paper position slide unit and its paper sensor, move back to the paper position slide home position sensor [E], and the punch unit fires the punches to make the holes. The feed rollers feed the punched paper out of the punch unit and into the paper path. The punch unit moves back to home position (detected by the home position sensor [F].
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 the paper edge. The detected position of the paper is used to move the punch unit across to the correct position for punching. When the paper position slide is retracted, the paper position slide HP sensor [C] detects when the slider is at home position and stops paper position slide motor.
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] through the gap in the punch encoder sensor [C]. The sensor output is used to control the punch timing.
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 punches the holes in the paper. Then, the punch drive motor turns clockwise to the ‘1’ position, to be ready for the next sheet of paper. 2.12.5 PUNCH HOPPER MECHANISM The punchouts fall from the punch unit into the punch hopper [A].
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.