Related Manuals for Ricoh SR4120
Summary of Contents for Ricoh SR4120
- Page 1 Finisher SR4120, Booklet Finisher SR4130 Machine Code: D3CG, D3CH Field Service Manual Ver 1.10 Latest Release: Jan, 2017 Initial Release: Oct, 2016 Copyright (c) 2016 - 2017 Ricoh Co.,Ltd.
- Page 3 Symbols, Abbreviations This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations are as follows: Symbol What it means Clip ring Screw Screw: Blue Connector Clamp E-ring Flat Flexible Cable Timing Belt Hook (sensors) Short Edge Feed Long Edge Feed Black Cyan...
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Page 5: Table Of Contents
Paper Exit Cover ............................... 8 Lower Tray ..............................11 Proof Tray ............................... 11 Upper Tray ..............................12 End Fence (SR4130) ............................12 End Fence (SR4120) ............................13 Paper Guide Unit ............................. 14 Boards .................................. 17 Main Board ..............................17 Main Motors ................................ 19 Corner Stapling Unit ............................ - Page 6 Flat Fold Roller Alignment ..........................47 Adjusting the Folding Speed ........................... 49 Flat Fold Booklet Unit Home Position Adjustment ..................49 Paper Guide Unit ..............................52 Paper Exit Cover, Optional Output Jogger Unit ....................52 Paper Guide Unit ............................. 57 Paper Guide Unit Sensor ..........................
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Page 7: Replacement And Adjustment
1.Replacement and Adjustment 1. Replacement and Adjustment Covers Rear Upper Cover, Rear Lower Cover, Upper Cover Rear upper cover [A] ( x 2) Rear lower cover [A] ( x 2) - Page 8 1.Replacement and Adjustment Open the front door [A], and remove the screws of the upper cover. ( x 5) Upper cover [A] ( x 2, x 2)
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Page 9: Front Cover, Front Left Side Cover
1.Replacement and Adjustment Check the positions of the bosses and hooks before removing the upper cover. When the upper cover is re-attached, tighten the screws on the right side in the order shown below: 1 > 2 > 3. Front Cover, Front Left Side Cover Open the front door [A], and then remove the front door bracket [B]. -
Page 10: Paper Guide Cover
1.Replacement and Adjustment Front left side cover [A] ( x 2) Paper Guide Cover Remove rear upper cover [A] ( x1). Remove shift tray [A] ( x1). - Page 11 1.Replacement and Adjustment Push the guides in to the center. Remove rear paper guide cover [A] ( x1). Remove front paper guide cover [A] ( x2).
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Page 12: Paper Exit Cover
1.Replacement and Adjustment Remove paper guide cover [A] screws ( x2). Disconnect the front tab, and then remove the cover. Paper Exit Cover Disconnect the finisher from the main frame. Remove the rear cover. - Page 13 1.Replacement and Adjustment Remove the shift tray. Push the paper guides to the center. Remove the rear paper guide cover.
- Page 14 1.Replacement and Adjustment Remove the front paper guide cover. Disconnect the main paper guide cover. Carefully, separate the front tabs at [A], and then remove the main paper guide cover [B].
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Page 15: Lower Tray
1.Replacement and Adjustment Lower Tray Lower tray [A] Proof Tray Remove the following covers. Rear Upper Cover, Rear Lower Cover, Upper Cover • Rear upper cover • Upper cover Proof tray [A] ( x 2) -
Page 16: Upper Tray
1.Replacement and Adjustment Upper Tray Upper tray [A] ( x 1) End Fence (SR4130) Remove the rear upper cover. Rear Upper Cover, Rear Lower Cover, Upper Cover Support the upper tray [A] with your right hand, and then pull gear [B] toward you to release. Upper tray [A] ( x 1) Lower Tray (Lower Tray) -
Page 17: End Fence (Sr4120)
1.Replacement and Adjustment End fence [A] ( x 2) End Fence (SR4120) Upper Tray [A] ( x 1) Shift tray bracket [A] ( x 4) -
Page 18: Paper Guide Unit
1.Replacement and Adjustment End fence [A] ( x 3) Paper Guide Unit Remove the paper exit guide. If the Output Jogger Unit Type M25 (option) unit is installed, remove it. Remove paper guide cover support bracket [A] ( x2). At the front and back remove the shoulder screws [A] and [B] of the output jogger unit if it was installed. •... - Page 19 1.Replacement and Adjustment Loosen the proof tray screws temporarily to make it easier to reach the paper guide fastening screws. Remove the paper guide fastening screws at the front [A] and rear [B] ( x4).
- Page 20 1.Replacement and Adjustment At the rear, open the clamp, and then disconnect the motor and sensor ( x2, x2). Tilt the paper guide unit toward you, and then disconnect the harness of motor bracket [A]. Remove the paper guide unit and place on a flat, clean surface.
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Page 21: Boards
1.Replacement and Adjustment Boards Main Board Remove the following covers. Rear Upper Cover, Rear Lower Cover, Upper Cover • Rear upper cover • Rear lower cover Main board [A] ( x 4, x All) When replacing the main board This board has two blocks of DIP switches. When you reinstall the main board, follow the procedure below regarding the dip switch settings. - Page 22 1.Replacement and Adjustment When replacing the control board, remove EEPROM [C] from the old board and install it on the new board. Locate the seal [A] attached near the right corner of the board. Go into the SP mode, open these SP codes, and then enter the numbers you see on the seal. •...
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Page 23: Main Motors
1.Replacement and Adjustment Main Motors Corner Stapling Unit Remove the following covers. Covers • Front door • Front left side cover • End fence • Rear upper cover • Rear lower cover Pull out the booklet stapler unit, and remove the inner upper cover [A]. ( x 2) •... - Page 24 1.Replacement and Adjustment Remove the screws from the front side of the finisher. ( x 6) Remove the bushing [A] from the front side of the finisher. ( x1) Remove the pressure release motor bracket [A] from the rear side of the finisher. ( x 2)
- Page 25 1.Replacement and Adjustment Remove the gear [A] from the rear side of the finisher. ( x 1) Remove the pulley [A] from the rear side of the finisher. ( x 1)
- Page 26 1.Replacement and Adjustment Remove screws from the rear side of the finisher. ( x 6) Remove the clamps shown below. ( x 6)
- Page 27 1.Replacement and Adjustment 10. Disconnect the ground wire [A] of the main board. ( x 1) 11. Disconnect the connectors shown below. ( x 8) 12. Pull out the harnesses disconnected in step 11 to the right side of the finisher through the hole [A]. 13.
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Page 28: Paper Exit Gate Motor
1.Replacement and Adjustment 14. Remove the corner stapling unit [A] from between the front and left plates. Paper Exit Gate Motor Corner stapling unit (Corner Stapling Unit) Stapler bracket [A] ( x 3, x 1) Paper exit gate motor [A] ( x 2, x 1) Leading Edge Guide Motor... -
Page 29: Trailing Edge Pressure Plate Motor
1.Replacement and Adjustment Stapler bracket [A] ( x 3, x 1) Leading edge guide motor [A] ( x 2, x 1) Trailing Edge Pressure Plate Motor Corner stapling unit (Corner Stapling Unit) Trailing edge pressure plate motor [A] ( x 2, x 1) Stacking Roller Motor Rear upper cover (Covers) -
Page 30: Feed Out Motor
1.Replacement and Adjustment Stacking roller motor [A] ( x 2, x 1) Feed Out Motor Corner stapling unit (Corner Stapling Unit) Feed out motor [A] ( x 2, x 1, x 2) Jogger Motor Corner stapling unit (Corner Stapling Unit) Stapler bracket [A] ( x 3, x 1) -
Page 31: Paper Guide Motor
1.Replacement and Adjustment Jogger motor [A] ( x 2, x 1) Paper Guide Motor The paper guide motor is at [A]. Remove the paper guide unit. Paper Guide Unit Remove sensor bracket ( x1). - Page 32 1.Replacement and Adjustment Unfasten the motor, and disconnect the belt ( x2, x1). Disconnect the motor harness, and then remove the motor ( x1). When you re-install the motor, make sure that the connector is pointing to the back of the unit.
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Page 33: Sensors
1.Replacement and Adjustment Sensors Shift Tray Paper Sensor Corner stapling unit Stapler bracket [A] ( x 3, x 1) Shift tray paper sensor bracket [A] ( x 1) Shift tray paper sensor [A] ( x 1, x 1) Trailing Edge Pressure Plate HP Sensor Corner stapling unit (Corner Stapling Unit) -
Page 34: Stacking Roller Hp Sensor
1.Replacement and Adjustment Stapler bracket [A] ( x 3, x 1) Turn back the stapler bracket, and remove the trailing edge pressure plate HP sensor bracket [A]. ( x 1) Trailing edge pressure plate HP sensor [A] ( x 1) Stacking Roller HP Sensor Corner stapling unit (Corner Stapling Unit) - Page 35 1.Replacement and Adjustment Stapler bracket [A] ( x 3, x 1) Turn back the stapler bracket, and remove the paper exit gate motor bracket [A]. ( x 1, x 1) Stacking roller HP sensor bracket [A] ( x 1)
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Page 36: Staple Tray Paper Sensor
1.Replacement and Adjustment Stacking roller HP sensor [A] ( x 1) Staple Tray Paper Sensor Corner stapling unit (Corner Stapling Unit) Stapler bracket [A] ( x 3, x 1) Staple tray paper sensor bracket [A] ( x 1, x 1) -
Page 37: Paper Guide Hp Sensor
1.Replacement and Adjustment Staple tray paper sensor [A] ( x 1) Paper Guide HP Sensor The paper guide HP sensor is located at [A]. Remove the paper guide unit. Paper Guide Unit Remove sensor bracket ( x1). - Page 38 1.Replacement and Adjustment Open the clamp and disconnect the sensor ( x1, x1). Separate the sensor and bracket ( x3).
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Page 39: Booklet Unit Motors
1.Replacement and Adjustment Booklet Unit Motors Booklet Stapler Unit Remove the following covers. Rear Upper Cover, Rear Lower Cover, Upper Cover • Rear Upper Cover • Rear Lower Cover Remove the ground wire [A] in the left lower side of the main unit. ( x 1) Release the harness from the 4 clamps shown below. - Page 40 1.Replacement and Adjustment Open the front door [A] and pull out the booklet stapler unit [B]. Remove the following screws. ( x 6)
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Page 41: Press Fold Motor
1.Replacement and Adjustment Lift up to remove the booklet stapler unit [A]. ( x 2) Press Fold Motor Booklet stapler unit Booklet Stapler Unit Remove bracket [A]. ( x 1) Remove the screw [A]. ( x 1) - Page 42 1.Replacement and Adjustment Loosen the screw [B] to loosen the press fold motor belt [C]. Release the harness from the 6 clamps shown below. ( x 6) Disconnect the 9 connectors shown below. ( x 9)
- Page 43 1.Replacement and Adjustment Disconnect the 2 connectors shown below. ( x 2) Remove the press fold motor bracket [A]. ( x 5)
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Page 44: Booklet Jogger Motor
1.Replacement and Adjustment Remove the spring [B] from the press fold motor bracket [A] ( x 1, x 1) 10. Remove the press fold motor [A] ( x 2, x 1) Booklet Jogger Motor Booklet stapler unit Booklet Stapler Unit Press fold motor bracket Press Fold Motor Booklet Jogger Motor [A] (... -
Page 45: Stapler Unit
1.Replacement and Adjustment Stapler Unit Stapler Unit Remove the rear upper cover [A]. ( x 2) Open the front door and push the stapler [A] to the rear side of the finisher. At the rear side, remove the screw circled in the photo below from the stapler [A]. Push the stapler to the front side of the finisher. - Page 46 1.Replacement and Adjustment Remove the inner upper cover [A]. ( x 2) Pull out the stapler unit [A]. Remove the bracket [B] from the stapler [A]. ( x 1)
- Page 47 1.Replacement and Adjustment Remove bracket [A]. ( x 1) Remove the stapler [A]. ( x 2)
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Page 48: Punch Unit
1.Replacement and Adjustment Punch Unit Do not adjust the setting because the punch unit is adjusted in the factory. If replacing the parts of the punch unit is required, replace the whole unit. • Do not disassemble the punch unit. This unit is precisely adjusted in the factory. •... - Page 49 1.Replacement and Adjustment Stepper motor bracket [A] ( x 1, x 2) Remove punch unit control board [A] ( x2). Pull out the punch unit [A] ( x 2, x 2, x 2)
- Page 50 1.Replacement and Adjustment...
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Page 51: Fold Adjustments
1.Replacement and Adjustment Fold Adjustments Flat Fold Roller Alignment To adjust the folding strength, adjust the difference in vertical alignment between the flat fold rollers. Booklet stapler unit Booklet Stapler Unit Fold plate bracket [A] ( x 2) Open the bracket [A] of the flat fold roller. Change the position of the flat fold lower roller [A] to change the difference in alignment between the upper... - Page 52 1.Replacement and Adjustment and lower rollers of the flat fold booklet unit. • With the factory default, the upper and lower rollers of the flat fold booklet unit are not aligned vertically. There is a 3mm difference [D] between the upper and lower rollers. However, you can change the lower roller position from [B] (factory default) to [C].
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Page 53: Adjusting The Folding Speed
1.Replacement and Adjustment Difference in Folding Thickness of the The amount of toner sticking to the Alignment Strength booklet folding line 3mm (default) Strong Thin Weak Thick Good Close the bracket after the adjustment. Reassemble the machine. Adjusting the Folding Speed You can adjust the thickness of the booklet by adjusting the moving speed of the flat fold booklet unit. - Page 54 1.Replacement and Adjustment Timing gear [A] ( x 1) Turn the knob [A] clockwise to move the flat fold roller unit [B] in the direction of the arrow. Move the flat fold roller unit until the edge of the unit [A] is between the guide lines [B] and [C] inscribed on the bracket.
- Page 55 1.Replacement and Adjustment [B] on the rear end of the fold plate shaft [C] is aligned with the fold plate positioning cam [D]. Re-attach the timing gear [A] ( x 1) Reassemble the finisher and connect it to the copier. Turn on the copier.
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Page 56: Paper Guide Unit
1.Replacement and Adjustment Paper Guide Unit Paper Exit Cover, Optional Output Jogger Unit The paper exit covers must be removed before the paper guide unit can be removed. Removal of these covers is different, depending on whether the Output Jogger Unit Type M25 is installed. •... - Page 57 1.Replacement and Adjustment Push the paper guides to the center. Remove the rear paper guide cover. Remove the front paper guide cover.
- Page 58 1.Replacement and Adjustment Disconnect the main paper guide cover. Carefully, separate the front tabs at [A], and then remove the main paper guide cover [B]. Procedure 2: Optional output jogger unit installed Remove the rear cover.
- Page 59 1.Replacement and Adjustment Remove the shift tray. Disconnect the jogger unit cover at the front [A] and rear [B]. Below the front end of the jogger unit cover [A], loosen the screw (do not remove). Pull the V-notch of the arm [B] out from under the loosened screw. Remove the jogger unit cover.
- Page 60 1.Replacement and Adjustment Remove rear end cover [A] and front end cover [B]. At the rear, disconnect the jogger unit. Disconnect the jogger unit at the front and rear. 10. The jogger unit hangs on two shoulder screws [A] (one at the front and one at the end).
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Page 61: Paper Guide Unit
1.Replacement and Adjustment 11. Lift the joggger unit [B] off the shoulder screws and remove it. 12. Lay the jogger unit on a flat, clean surface. Paper Guide Unit Remove the paper exit covers if the optional output jogger unit is not installed. (Procedure 1: Optional output jogger unit not installed) -or- If the optional output jogger unit is installed, remove it. - Page 62 1.Replacement and Adjustment Remove the cover support bracket. Loosen (do not remove) the screws on both ends of the paper exit. This will loosen the tray so that you can move the tray slightly side-to-side in order to remove the bracket screws more easily. Disconnect the rear end of the paper guide unit bracket [A].
- Page 63 1.Replacement and Adjustment At the rear, open the clamps and disconnect the motor and sensor harnesses. Hold the unit bracket with both hands, lower the rear end [A], roll it toward you slightly, and then disconnect the harnesses [B]. Lay the unit on a flat clean surface so that you can see the paper guide motor [1] and paper guide position sensor bracket [2].
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Page 64: Paper Guide Unit Sensor
1.Replacement and Adjustment Paper Guide Unit Sensor Remove the paper guide unit. Paper Guide Unit Disconnect the sensor bracket. Disconnect the sensor. Separate the sensor and bracket. -
Page 65: Paper Guide Motor
1.Replacement and Adjustment Paper Guide Motor Remove the paper guide unit. Paper Guide Unit Disconnect the sensor bracket so that you can access the screw below. Disconnect the motor. Separate the unit from the motor. - Page 66 1.Replacement and Adjustment When you re-install the motor, make sure the open bracket connector is pointing to the rear.
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Page 67: Detailed Descriptions
2.Detailed Descriptions 2. Detailed Descriptions Overview Layout General Layout Name Name Punch Units Corner Stapler Side-to-Side Fold Roller Shift Tray Booklet Stapler Proof Tray Booklet Staple Tray • When pushing the booklet stapler unit into the finisher, make sure that the unit is against the frame, as shown in the blue circle, and that jam release lever R8 is closed completely. - Page 68 2.Detailed Descriptions Electrical Component Layout Part Exit Motor Transport Motor Main Control Board Pre-stack Transport Motor Entrance Transport Motor Horizontal Transport Motor Tray Lift Motor...
- Page 69 2.Detailed Descriptions Part Paper Guide Motor Paper Guide HP Sensor Part Part Shift Motor LED 3 Upper Junction Gate Solenoid LED 2 Lower Junction Gate Motor Horizontal Transport Sensor Proof Tray Full Sensor Switchback Transport Sensor Entrance Sensor Transport Path Paper Sensor LED 5 Proof Tray Exit Sensor LED 1...
- Page 70 2.Detailed Descriptions Part Part Jogger Fence HP Sensor Stapler Move HP Sensor Jogger Motor Leading Edge Guide Motor Corner Stapler Movement Motor Leading Edge Guide HP Sensor Feed-out Belt Motor Positioning Roller HP Sensor Staple Tray Paper Sensor Positioning Roller Motor Feed-out Belt HP Sensor Shift Tray Exit Sensor Corner Stapler Motor...
- Page 71 2.Detailed Descriptions Part Part Booklet Jogging Pawl Movement Motor Booklet Stapler Motor Dynamic Roller Transport Motor Booklet LED 1 Booklet Jogging Pawl HP Sensor Booklet Guide Plate Sensor Booklet Upper Transport Path Stack Sensor Booklet LED 2 Booklet Jogger Motor Booklet LED 3 Booklet Jogging HP Sensor Booklet LED 4...
- Page 72 2.Detailed Descriptions Part Booklet Exit Sensor 1 Fold Plate Cam HP Sensor Fold Transport Motor Press Fold Motor Punch Units Part Punch Movement Motor Punch Unit HP Sensor Punch Registration HP Sensor Punch Registration Motor Punch Registration Sensor Punchout Hopper Full Sensor Punch HP Sensor Punch Motor Punch Motor Rotation Sensor...
- Page 73 2.Detailed Descriptions Transport Layout Straight Through Path Orange Proof Path Green Pre-stack Path Purple Corner Staple Path Pink Booklet Staple Path Proof Transport Layout (Drive) Name Proof Exit Motor Junction Gate Solenoid Entrance Transport Motor Horizontal Transport Motor...
- Page 74 2.Detailed Descriptions Proof Transport Layout (Sensor) Name Proof Tray Full Sensor Proof Exit Sensor Horizontal Transport Sensor Entrance Sensor Shift Transport Layout (Drive) Name Shift Roller Motor (shift only) Entrance Transport Motor Horizontal Transport Motor Relay Transport Motor Upper Tray Exit Motor...
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Page 75: Operation Details
2.Detailed Descriptions Operation Details Shift Operation (Shift Transport) To output paper, the shift roller motor [A] moves the shift roller [B] side-to-side while a job is in progress. The shift roller HP sensor [C] is used to control this mechanism. Pre-stack Operation (In Corner Stapling) •... -
Page 76: Pre-Stack Operation (Booklet Stapling)
2.Detailed Descriptions pre-stack position. The rotation of the relay transport roller [C] and the pre-stack roller [B] stops, and the pre-stack junction gate [A] shifts up (open). The shift roller [D] also shifts up to release the pressure between itself [D] and the relay transport roller [C]. -
Page 77: Upper Tray Shift Drive / Limit Sensor / Full Sensor
2.Detailed Descriptions The pre-stack junction gate [A] drops (closed) and the relay transport roller [C] rotates in reverse. The pre- stack roller [B] rotates to feed paper to the pre-stack position. The rotation of the relay transport roller [C] and the pre-stack roller [B] stops, and the pre-stack junction gate [A] shifts up (open). - Page 78 There are five tray full sensors [D] on the rear side of the machine. The machine uses the readings from these sensors to detect how many outputs are stacked in the tray. SR4130: Three sensors to detect 500, 1000, 2000 sheets SR4120: Three sensors to detect 500, 1500, 3000 sheets Booklet Finisher SR4130 Detection...
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Page 79: Pull-In Roller / Paper Stack Holder
2.Detailed Descriptions Condition 2 When the feeler is pushed up as far as "1", and remains there for 13 sec., the tray is detected full. The purpose is to accurately detect “tray full” for stacks of Z-folded paper, or poorly stacked documents. Condition 3 Shift tray detection input check: SP6123-35 is normally set to "0"... - Page 80 2.Detailed Descriptions Operation There are five steps in the operation: When a job starts, the paper stacking holder motor rotates the paper stacking holder cam [B] to shift the paper stacking holder [A] down. The stacking sponge roller fluctuation motor rotates the stacking sponge roller cam [D] to move the stacking sponge roller [E] down.
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Page 81: Corner Stapling
2.Detailed Descriptions [C] detects the end of the paper stacking holder [B]). Corner Stapling Components Name Name Positioning Roller Lift Motor Drag Roller Positioning Roller Stapler Exit Motor Stapler HP Sensor Stapler Movement Motor Positioning Roller HP Sensor... - Page 82 2.Detailed Descriptions Name Name Edge Guide Jogger Fence Upper Tray Exit Sensor Staple Tray Paper Sensor Jogger HP Sensor Edge Guide HP Sensor Jogger Motor Edge Guide Motor Name Name Stack Feed-out Belt (with stack feed-out pawl) Bottom Pawl Stack Feed-out Motor Stack Feed-out Pawl HP Edge Guide When the machine applies a corner staple to a paper stack, the other end of the stack is hanging out of the exit.
- Page 83 2.Detailed Descriptions when the last sheet of a job is output (the edge guide HP sensor [C] detects the edge guide). Stapler Move The staple movement motor [A] moves the stapler [C] along the guide rod [B]. After a job finishes, the stapler [C] returns to its HP (the stapler HP sensor [D] detects the base of the stapler).
- Page 84 2.Detailed Descriptions that pushes paper against the bottom pawl, in order to hold paper in the stapling position. Jogger The jogger motor [A] moves the jogger fences [C] to the ready position and waits for the first sheet. As each sheet enters, the jogger fences push toward the center.
- Page 85 2.Detailed Descriptions • The cartridge set sensor [B]: It detects the cartridge at the correct position. It also detects the staple end condition. (If the sensor is OFF, the "Add Staple" icon is displayed on the operation panel) If staple end is detected during copying, the "Add Staple" icon is displayed on the operation panel after the end of the job.
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Page 86: Saddle Stapling (Booklet Stapling)
2.Detailed Descriptions Output is performed by the exit roller as described in the output operation described above. 2. Roller exit: A4, LT, B5 LEF Only the exit roller is used to perform output without using the mobile fence and output pawls. Large Sizes (A3, B4, LG, DLT) 1 to 10 documents: Roller output method More than 11 documents: Pawl, roller output method... - Page 87 2.Detailed Descriptions the finisher was very large. This finisher, however, in spite of being very small, uses the device described below to achieve a better saddle shape. • Pressure is applied to the fold with a roller to form the saddle. •...
- Page 88 2.Detailed Descriptions Name Name Shift Roller Drive Motor Bottom Fence Booklet Upper Transport Path Paper Sensor Jogger Fence Jogger Fence Motor Booklet Stapler Jogger Fence HP Sensor Guide Open/Closed Sensor Bottom Fence Motor Shift Roller Name Name Side-to-side Shift Fold Roller Fold Plate Fold Plate HP Sensor Fold Plate Cam Sensor...
- Page 89 2.Detailed Descriptions Name Name Fold Unit Exit Sensor Fold Unit Exit Roller Fold Roller Fold Roller Motor Booklet Staple Transport When paper begins to go through the booklet staple path, the shift roller unit [A] moves up to its operating position in order to be ready to transport paper.
- Page 90 2.Detailed Descriptions jogger fences move to the ready position (this depends on the paper size). Bottom Fence Operation / Staple Paper that is pushed with the stack junction gate bumps against the bottom fence [B] in order to align the edges of the paper in the stack.
- Page 91 2.Detailed Descriptions Center Folding, Saddle Shaping Operation The operation of stack folding and saddle shaping is described below. Saddle shaping alone is described below under "Saddle Shaping Operation". When the fold plate [B] pushes the center of the stack between the fold transport rollers [E], the side-to-side roller unit [A] slides along the upper path [D].
- Page 92 2.Detailed Descriptions At the same time, in the upper path the top of fold roller unit reverses, releasing pressure on the fold. When the fold roller unit releases pressure and starts to reverse its direction, the top of the side-to-side fold roller presses switch plate 2 which directs it down into the lower path.
- Page 93 2.Detailed Descriptions Saddle Shaping Operation Name Name Guide Plate 1 Fold Transport Roller Guide Plate 2 Side-to-Side Fold Roller Unit The side-to-side fold roller unit in the center moves from [A] to [C]. It moves along a rail when it comes to the center, the upper fold (up) descends [B], and then pressure from a large spring folds the center of the stack.
- Page 94 2.Detailed Descriptions Paper Guide Unit As each stapled copy exits the finisher it contacts the copy ahead of it already on the shift tray, and the paper guide unit [A] prevents the copies from becoming entangled on the shift tray. The paper guide motor drives the paper guide cover to reduce the amount of curl and prevent the leading edges from curling and improves the output of stapled copies on the shift tray [B].
- Page 95 2.Detailed Descriptions...