Safety and Symbols Replacement Procedure Safety • 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...
1. Replacement and Adjustment Covers Exterior Covers 1. Open the front door [D]. 2. Small upper cover [A] ( x1) 3. Upper cover [B] ( x2) 4. Front door bracket [C] ( x1) 5. Front door [D] 6. Front left side cover [E] ( x2) 7.
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1. Replacement and Adjustment 1. Support the tray [A] with your right hand. 2. Pull gear [B] toward you ¬ to release. 3. Slowly lower the tray until it stops. 4. Front side cover [C] ( x1) 5. Rear side cover [D] ( x1) 6.
Main Unit Main Unit Upper Tray Limit Sensor, Limit Switch 1. Front door, front left side cover, rear cover, upper cover (* "Exterior Cover") 2. End fence (* "Upper Tray, End Fence") 3. Upper tray exit mechanism [A] ( x4, x3) 4.
1. Replacement and Adjustment Positioning Roller 1. Open the front door [A]. 2. Pull out the stapling unit [B]. 3. Positioning roller [C] ( x1, timing belt x1)
1. Replacement and Adjustment Finisher Entrance Sensor 1. Disconnect the finisher if it is connected to the copier. 2. Sensor bracket [A] ( x1) 3. Finisher entrance sensor [B] (S1) ( x1) Pre-Stack Tray Exit Sensor 1. Disconnect the finisher if it is connected to the copier.
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Main Unit 2. Sensor bracket [A] 3. Pre-stack tray exit sensor [B] (S2)
1. Replacement and Adjustment Stapler Unit Corner Stapler 1. Open the front door. 2. Pull out the stapler unit. 3. Inner cover [A] ( x3) 4. Stapler unit holder [B] ( x1) 5. Corner stapler [C] (M20) ( x1)
1. Replacement and Adjustment Fold Unit Fold Unit 1. Remove the back cover (* "Exterior Covers"). 2. Open the front door. • The stapler unit is heavy. 3. Ground cable [A] ( x1) 4. Harness [B] ( x6, x6) 5.
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Fold Unit • Support the fold unit with your hand to prevent it from falling. • The fold unit is heavy. 6. Folding unit [D] ( x4, x2, x6) If you have replaced the folding unit: 1. Read the DIP SW settings on the decal [A] attached to the back of the new folding unit.
1. Replacement and Adjustment 2. Check the DIP SW settings on the main board [B] of the finisher. 3. If these settings are different, change these settings to match the settings printed on the decal attached to the folding unit. •...
Fold Unit Fold Unit Exit Sensor 1. Open the front door. 2. Pull out the stapler unit (* "Positioning Roller"). 3. Fold unit vertical guide plate [A] 4. Fold unit inner cover [B] ( x2, Spring pin x1) 5. Fold unit upper cover [C] ( x1) 6.
1. Replacement and Adjustment Stack Present Sensor • If you intend to correct the horizontal and vertical skew for the fold unit at the same time, do those adjustments first, then replace the sensor. (* "Folding Horizontal Skew Adjustment" or "Fold Vertical Skew Adjustment") 1.
Fold Unit Folding Horizontal Skew Adjustment (For B804 only) • The fold unit is adjusted for optimum performance before the finisher is shipped from the factory. Do this adjustment only if the edges of folded booklets are not even. 1. Switch the copier on and enter the SP mode. 2.
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1. Replacement and Adjustment 10. Push the stapler unit into the finisher and close the front door. 11. Do a folding test. • Switch the copier on. • Put one page of A3 or DLT paper in the ARDF. • On the copier operation panel, select booklet stapling. •...
Fold Unit 15. Open the front door of the finisher and pull the stapler unit [H] out. 16. Open the guide plate [I]. 17. Turn the adjustment screw [J] to correct the amount of skew you measured from the test sheet. •...
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1. Replacement and Adjustment 4. Referring to the diagram, determine if the skew is positive [A] or negative [B]. 5. Measure the amount of skew. 6. Enter the SP mode • Europe, Asia: Use SP6-134-001 (this is for A3 paper). •...
Booklet Stapler Unit Booklet Stapler Unit Booklet Stapler 1. Open the front door. 2. Pull out the stapler unit (* "Positioning Roller"). 3. Harness cover [A] ( x2) 4. Booklet stapler support stay [B] ( x4, x2, x4) 5.
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Booklet Stapler Unit To Reattach the Booklet Stapler Motor 1. Reattach the booklet stapler motor. • Do not tighten the screws. 2. Attach the special tool [A] and reattach the booklet stapler stay. • This tool is included with the stapler spare part. 3.
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2. Detailed Section Descriptions 6. Corner Stapler (M20) 12. Proof Tray : B804 Only Paper direction The operation of the proof tray and stapler junction gates direct the flow of the paper once it enters the finisher: Proof Junction Gate Stapler Junction Gate Paper Feeds Closed...
Component Layout Electrical Components Upper Area B804/B805 1. Upper/Proof Exit Motor (M4) 10. Upper Tray Limit Switch (SW2) 2. Stapling Tray Junction Gate Solenoid (SOL2) 11. Stacking Roller HP Sensor (S13) 3. Upper Transport Motor (M2) 12. Stacking Sponge Roller Motor (M10) 4.
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2. Detailed Section Descriptions Lower Area B804/B805 8. Positioning Roller Motor (M14) 1. Upper Tray Lift Motor (M21) 9. Lower Tray Full Sensor – Front (S34)* 2. Lower Transport Motor (M3) 10. Lower Tray Full Sensor – Rear (S33)* 3. Entrance Motor (M1) 11.
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Component Layout Punch Unit B702 1. Punch Encoder Sensor (S24) 6. Paper Position Slide HP Sensor (S22) 2. Punch Drive Motor (M24) 7. Paper Position Sensor (S3) 3. Punch HP Sensor (S24) 8. Punch Hopper Full Sensor (S4) 4. Punch Unit Board (PCB3) 9.
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2. Detailed Section Descriptions Stacker/Stapler - B804/B805 7. Jogger Fence Motor (M15) 8. Jogger Fence HP Sensor (S15) 1. Stack Present Sensor (S32)* 9. Corner Stapler Movement Motor (M6) 2. Stack Junction Gate HP Sensor (S27)* 10. Stapling Tray Paper Sensor (S14) 3.
Component Layout B804 Fold unit 1. Clamp Roller HP Sensor (S25) 6. Fold Cam HP Sensor (S30) 2. Fold Roller Motor (M12) 7. Fold Bottom Fence HP Sensor (S28) 3. Fold Plate Motor (M11) 8. Fold Unit Entrance Sensor (S26) 4.
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2. Detailed Section Descriptions Component Function Boards (PCB) PCB1 Main Board The main board that controls the finisher PCB2 Booklet Stapler Board A separate board that controls booklet finishing. PCB3 Punch Unit Board The board that controls the punch unit. Motors Drives 1) the finisher entrance rollers, 2) and the punch waste Finisher Entrance Motor...
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Component Layout Component Function Drives the front/back movement of the punch unit to position it Punch Movement Motor correctly for stapling the paper below. Rotates the stacking roller that drags each sheet back against the Stacking Sponge Roller end fence to jog the bottom of each sheet after feed out to the Motor upper tray.
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2. Detailed Section Descriptions Component Function This is the roving corner stapler, mounted on a steel rail that staples Corner Stapler EH530 1) at the front, 2) at the rear (straight staple), 3) at the rear (di- agonal staple), and 4) font and rear (two staples). Raises and lowers the upper tray during feed out to keep the tray Upper Tray Lift Motor at the optimum height until it is full.
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Component Layout Component Function sensor signals an error when it detects (1) paper has failed to leave the paper exit (lag error), (2) detects paper has failed to arrive at the paper exit (late error), (3) detects paper is in the exit slot when the machine is turned on.
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2. Detailed Section Descriptions Component Function sponge roller drags each ejected sheet back against the end fence of the upper tray to keep the bottom of the stack aligned. A photo sensor that detects whether paper is in the stapling tray. Stapling Tray Paper Sen- When this sensor detects paper, the bottom fence motor raises or lowers the bottom fence to position the selected paper size for...
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Component Layout Component Function Controls the movement of the paper position detection unit. Paper Position Side HP Switches on when the horizontal detection unit is at the home po- Sensor sition (HP is the reference point). Detects the home position of the punch unit and controls the ver- Punch HP Sensor tical movement of the punches when they fire.
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2. Detailed Section Descriptions Component Function from the nip of the fold rollers, detects the leading and trailing edge of the booklet to make sure that it feeds out correctly. This sensor determines whether a there is paper at the turn junction gate when the machine is turned on.
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Component Layout Component Function When the paper stack in the stapling tray feeds to the folding unit, Booklet Pressure Roller SOL5 this solenoid turns on and operates the roller that pushes on the Solenoid surface of the stack to flatten it. Switches The safety switch that cuts the dc power when the front door is Front Door Safety Switch...
2. Detailed Section Descriptions Drive Layout 1. Upper Transport Motor (M2) 6. Folder Plate Motor* (M11) 2. Upper/Proof Exit Motor (M4) 7. Positioning Roller Motor (M14) 3. Upper Tray Lift Motor (M21) 8. Lower Transport Motor (M3) 4. Feed-Out Belt Motor (M5) 9.
Junction Gates Junction Gates The positions of the proof tray and staple tray junction gates determine the direction of paper feed after paper enters the finisher. Proof Mode Proof tray junction gate [A] opens. Staple tray junction gate [B] remains closed. The proof tray junction gate directs paper to the proof tray above.
2. Detailed Section Descriptions Shift Mode Proof tray junction gate [A] remains closed. Staple tray junction gate [B] remains closed. With both junction gates closed, the paper goes to the upper tray. Staple Mode Proof tray junction gate [A] remains closed. Staple tray junction gate [B] opens The staple tray junction gate directs the paper to the staple tray below for jogging and stapling.
Pre-Stacking Pre-Stacking This example describes what happens to Set 2 during the feed and stapling cycle of sets that contain three pages. • [A]: While the Set 1 is being stapled in the staple tray [1], the 1st sheet of Set 2 [2] feeds to the pre- stack tray, and the 2nd sheet of Set 2 [3] enters the finisher.
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2. Detailed Section Descriptions • [H]: The three sheets of Set 2 [12] feed together into the stapler tray for stapling. Pre-stacking is only done for A4, B5, and LT paper. In one-staple mode, one sheet goes to the pre-stacking tray. Then two sheets go to the stapler tray at the same time.
Tray Movement Mechanism Tray Movement Mechanism Upper Tray [A]: Upper Tray Lift Motor [E]: Lower Feeler [B]: Upper Feeler [F]: Upper Tray Limit Sensor [C]: Upper Tray Paper Height Sensor 1 (Staple Mode) [G]: Upper Tray Limit Switch [D]: Upper Tray Paper Height Sensor 2 (Non-Sta- [H]: Upper Tray Full Sensors ple Mode) •...
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2. Detailed Section Descriptions Upper Tray Raising and Lowering Sensors, Switch Action Operation Mode Stops the lift motor is at the standby position when the actuator of the upper feeler deactivates sen- Standby (Non-Sta- sor [C] (when it is between sensors [C] and [D]). ple Mode) Note: Sensor [F] and switch [G] are used as backup if sensor [C] fails or if the upper tray is...
Tray Movement Mechanism Lower Tray (B804 Only) The lower tray sensor actuator arm [A] rests on the top of the stack of stapled booklets as they are output to the lower tray. A flap depressor [B] keeps the open ends of the booklets down. The front lower tray full sensor (S34) [C] and rear lower tray full sensor (S33) [D] detect when the lower tray is full of booklets.
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2. Detailed Section Descriptions Condition Front Sensor Rear Sensor Ready Full 1 Full 2 Full 3 (or lower tray not installed) In the tables below: • "Sht" denotes "sheets in a stack". • "Cnt" denotes "Count" (see below for an explanation). After a booklet is feed out, the fold roller motor stops the exit roller.
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Tray Movement Mechanism After the copier makes a booklet with 5 sheets of A4/LT paper, the machine checks every 100 ms for the ‘Full 2’ condition. If the Full 2 condition occurs 20 times (shaded block in the table above), the machine detects that the tray is full.
2. Detailed Section Descriptions Corner Stapling Stacking and Jogging [A]: Jogger Fence Motor (M15) [B]: Jogger Fences [C]: Positioning Roller [D]: Jogger Fence HP Sensor (S15) [E]: Stapling Edge Pressure Plate Solenoid (SOL4) [F]: Pressure Plate At the beginning of the job, the jogger fence motor (M15) [A] switches on and moves the jogger fences [B] to the standby position (7.5 mm from the sides of the selected paper size).
Corner Stapling • Switches on again and moves the jogger fences to within 2.6 mm of the sides of the stack to align the sides of the stack. • Reverses and moves the fences to the standby position (7.5 mm away for the sides) and waits for the next sheet.
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2. Detailed Section Descriptions • Rear/Front 2 staples The stapler movement motor [A] drives a timing belt that moves stapler [B] left and right on its stainless steel rail. The stapler rotation motor [C] rotates the stapler into position for diagonal stapling at the rear. •...
Corner Stapling Corner Stapling Staple firing is driven by the stapler motor [A] inside the stapler unit. The stapler hammer [B] fires the stapler [C]. The cartridge set sensor [D] detects the cartridge at the correct position. The staple end sensor [E] detects the staple end condition.
2. Detailed Section Descriptions Booklet Stapling (B804 Only) Booklet Pressure Mechanism [A]: Booklet Pressure Roller Solenoid (SOL5) [B]: Booklet Pressure Roller Arm [C]: Booklet Pressure Roller As soon as the edges are aligned by the positioning roller and the jogger fences, the stack feed out belt moves.
Booklet Stapling (B804 Only) Booklet Stapling and Folding Overview 1. Leading Edge Pressure Roller 13. Corner Stapler (M20) 2. Stack Present Sensor (S32) 14. Stapling Tray Paper Sensor (S14) 3. Feed Out Belt Pawl 1 15. Feed Out Belt 4. Booklet Staplers x2 (M22, M23) 16.
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2. Detailed Section Descriptions 11. Pressure Plate 23. Stack Junction Gate 12. Stapling Tray Bottom Fence 24. Stack Transport Roller The last sheet of the stack [1] enters the stapling tray. The jogger fences [2] jog the last sheet into position (based on the width of the selected paper size) and then retract and stop 1 mm away from the sides of the stack.
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Booklet Stapling (B804 Only) The jogger fences remain 1 mm away from the sides of the stack. The feed out belt [1] raises the stack until the top of the stack is 10 mm past the leading edge pressure roller [2] and stops. The leading edge pressure roller descends and applies pressure to the top of the stack.
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2. Detailed Section Descriptions The bottom fence [1] raises the stack to the prescribed fold position [2]. The fold plate [3] moves to the left and advances 1/3 its maximum horizontal stroke and exerts 20 kg (44 lb.) of pressure at the fold rollers [4]. With the fold plate pushing the stack into nip of the fold rollers [5], the fold rollers begin to rotate and fold the stack as it feeds out.
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Booklet Stapling (B804 Only) When the fold rollers [1] feed the stack 10 mm past the nip, the fold plate retracts until it no longer touches the stack. The fold unit exit sensor [2] detects the folded edge of the stack and stops the fold rollers. The rotation of the fold rollers [4] reverses and feeds the folded edge back until only 3 mm of the fold [5] remains at the nip.
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2. Detailed Section Descriptions With the feed of the stack halted, the fold plate [1] retracts. The fold plate HP sensor (not shown) detects the fold plate and stops it at its home position. The fold rollers [2] and fold unit exit rollers [3] begin to rotate together and feed out the folded booklet to the lower tray.
Booklet Stapling (B804 Only) Booklet Stapling and Folding Mechanisms Booklet Stapler [A]: Feed Out Belt Pawl. Raises the stack to stapling position. [B]: Booklet Stapler EH185R – Rear [C]: Booklet Stapler EH185R – Front Stack Junction Gate [D]: Stack Junction Gate Motor. Drives a timing belt and stack junction gate cam. [E]: Stack Junction Gate Cam.
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2. Detailed Section Descriptions Clamp Roller [A]: Fold Roller Motor. Drives the stationary clamp drive roller ¬ as well as the fold rollers (see next page). [B]: Clamp Rollers. ¬ Clamp Roller – Drive. Rotated by the fold roller motor, this stationary roller feeds the stack down with the retracting roller closed.
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Booklet Stapling (B804 Only) 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).
2. Detailed Section Descriptions Upper Tray Output Feed Out [A]: Feed Out Belt Motor [B]: Stack Feed-Out Belt [C]: Pawl [D]: Exit Rollers [E]: Exit Guide Plate Motor [F]: Exit Guide Plate [G]: Exit Guide Plate HP Sensor [H]: Upper Tray After the stack is stapled, the feed out belt motor [A] switches on and drives the feed out belt [B].
Upper Tray Output Next, the feed out belt motor switches on again, then the pawl actuates its home position sensor and switches off the motor. There are two output pawls on the feed out belt to improve the productivity of the feed out operation. Feed Out Stacking Upper/proof exit motor [A] drives feed roller [B] and stacking sponge roller [C].
2. Detailed Section Descriptions Punch Unit B702 (For B804/B805) Overview of Operation Skew Correction before Punching This punch unit corrects for paper skew and then positions the punch unit to punch holes at the correct position. Each sheet is punched one at a time. Paper feeds out of the copier.
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Punch Unit B702 (For B804/B805) Punch Unit Position Correction These operations (skew correction before punching, and punch unit position correction) increase the ac- curacy of the punch alignment. ¶: The trailing edge of the sheet passes the finisher entrance sensor [A]. The paper position slide unit [B] moves the paper position sensor [C] forward to the edge of the paper.
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2. Detailed Section Descriptions These SP codes adjust the punch hole alignment: • SP6-128 Adjusts the punch positions in the direction of paper feed. • SP6-129 Adjusts the punch position perpendicular to the direction of feed. For more, see Section "Service Tables".
Punch Unit B702 (For B804/B805) Punch Mechanisms Paper Position Detection [A]: Finisher Entrance Motor (M1) [B]: Finisher Entrance Roller [C]: Finisher Entrance Sensor (S1) [D]: Paper Position Sensor Slide Motor (M7) [E]: Paper Position Sensor (S27) [F]: Paper Position Sensor Slide HP Sensor (S22) The finisher entrance motor (M1) [A] drives the finisher entrance rollers [B] that feed paper from the copier into the finisher.
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2. Detailed Section Descriptions Punch Unit Movement [A]: Punch Movement Motor (M9) [B]: Punch Movement HP Sensor (S21) [C]: Punch Drive Motor (M24) The punch movement motor (M9) [A] extends and retracts the punch unit to position it at the correct position for punching.
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Punch Unit B702 (For B804/B805) Punch Selection and Firing [A]: Punch Drive Motor (M24) [B]: Punch Encoder Wheel [C]: Punch Encoder Sensor (S24) [D]: Punch HP Sensor (S23) The punch drive motor (M24) [A] turns the small, notched encoder wheel [B] through the gap in the punch encoder sensor [C] (S24).
2. Detailed Section Descriptions 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. •...
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Punch Unit B702 (For B804/B805) • It also detects when the punch hopper is set properly.
2. Detailed Section Descriptions Finisher Jam Detection Display Mode What It Means After main machine exit sensor goes OFF, finisher en- Finisher entrance trance sensor does not go ON even after enough time sensor late Proof to feed 450 mm. R1 to R3 Shift After finisher entrance sensor goes ON, it does not go...
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Finisher Jam Detection Display Mode What It Means After finisher entrance sensor goes ON, upper tray exit Upper tray exit sensor does not go ON even after enough time to feed sensor late 485 mm. Shift After finisher entrance sensor goes OFF, upper tray exit Upper tray exit sensor does not go OFF even after enough time to feed sensor lag...
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