Ricoh BY5020 Field Service Manual Download | Manualshive

Page: 13 / 38

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1.Replacement and Adjustment

9

Motors

Paper Feed Motor, Paper Transport Motor

Paper Feed Motor [A] and Paper Transport Motor [B] Location

1.

Remove the rear cover. (

2.

Remove the paper feed motor [A].

3.

Remove the transport motor [A].

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Summary of Contents for BY5020

Page 1: ...Multi Bypass Tray BY5020 Machine Code D3EV Field Service Manual Ver 1 0 Latest Release Feb 2018 Initial Release Feb 2018 c 2018 Ricoh Co Ltd ...

Page 2: ......

Page 3: ...hose symbols and abbreviations are as follows Symbol What it means Clip ring Screw Connector Clamp E ring Flat Flexible Cable Timing Belt SEF Short Edge Feed LEF Long Edge Feed K Black C Cyan M Magenta Y Yellow B W BW Black and White FC Full color A Short Edge Feed SEF B Long Edge Feed LEF ...

Page 4: ......

Page 5: ...per Feed Sensor 15 Lift Sensors 15 Paper End Sensor 15 Paper Length Sensor 16 Paper Width Sensor 17 Paper Height Sensors 1 2 Tray Lower Limit Sensor 18 Relay Sensor 18 Rollers 20 Overview 20 Roller Removal 20 Switch Solenoid PCB 23 Tray Lift Switch 23 Pickup Solenoid 23 Bypass Tray PCB 24 2 Detailed Descriptions 26 Overview 26 Specifications 26 Mechanical Component Layout 27 Drive Layout 27 Electr...

Page 6: ...2 ...

Page 7: ... the Multi Bypass Tray regardless of which unit it is used with 1 Pull the front left cover in the direction indicated by the arrow When moving the LCIT with the bypass unit attached grip and push the body of the LCIT unit To avoid damaging the bypass tray never attempt to push or rotate the assembled units by pulling or pushing on the bypass tray Covers Right Front Cover 1 At the front remove the...

Page 8: ...tment 4 2 Remove the right front cover 1 x1 Left Front Cover 1 Remove the right front cover 2 Disconnect the right side 1 x1 3 Disconnect the left side 2 x1 You need a short screwdriver to remove this screw 4 Remove the cover ...

Page 9: ... the rear cover 1 Covered screw x1 2 Rear screw x1 3 Well screw x1 2 Remove the cover Top Cover 1 Remove the front covers and the rear cover See previous sections 2 At the front remove the screw cover and the screw under the cover and then remove the front ...

Page 10: ...1 Replacement and Adjustment 6 screw x2 3 At the rear disconnect the top cover and remove it x1 Feed Tray 1 Remove all the covers Right Front Cover Left Front Cover Rear Cover Top Cover ...

Page 11: ...plate 1 and swing the hinge plate to the right x1 5 At the rear disconnect hinge plate 2 x1 6 Carefully disconnect the hinge and spring 3 7 Pull the harnesses through the frame 1 8 Remove the feed tray 2 9 Turn over the feed tray There are three sensors on the bottom of the feed tray Paper end sensor Paper width sensor Paper length sensor ...

Page 12: ...1 Replacement and Adjustment 8 ...

Page 13: ...and Adjustment 9 Motors Paper Feed Motor Paper Transport Motor Paper Feed Motor A and Paper Transport Motor B Location 1 Remove the rear cover Rear Cover 2 Remove the paper feed motor A 3 Remove the transport motor A ...

Page 14: ...r 2 Remove the paper feed motor Paper Feed Motor Paper Transport Motor 3 Remove the motor with its bracket A To facilitate the removal depress the coupling A of the motor to let it come off the shaft But be careful because the tray can suddenly drop due to coming off the shaft ...

Page 15: ...ent 11 4 Separate the motor and bracket x2 Cooling Fan for Transport Motor 1 Remove the rear cover Rear Cover 2 Disconnect the connector of the fan A and then remove the screw to detach the fan with its bracket 3 Remove the fan ...

Page 16: ... Adjustment 12 Cooling Fan for Paper Feed Motor 1 Disconnect the connector of the fan A and then remove the screws to detach the fan with its bracket 2 Detach the fan from the bracket Relay Motor 1 Remove the cover A x2 ...

Page 17: ...1 Replacement and Adjustment 13 2 Open the clamps to free the harness 3 Remove the bracket A 4 Remove the motor A with its bracket ...

Page 18: ... Adjustment 14 5 Separate the motor and bracket Re installation When you re install the harness Work carefully so it does not get pinched Make sure the permanent bands are positioned at the clamps as shown in the photo ...

Page 19: ...ect the sensor bracket 1 x1 x1 3 Remove the sensor 2 x1 x3 Lift Sensors 1 Remove the front rear and top covers Right Front Cover Left Front Cover Rear Cover Top Cover 2 Disconnect the sensor bracket 1 x1 3 Disconnect and remove the sensors 2 x1 x3 each Paper End Sensor 1 Remove the feed tray Feed Tray 2 Turn the feed tray upside down and lay it on a flat surface ...

Page 20: ...e the sensor cover 2 x1 4 Turn over the sensor cover 1 5 Remove the sensor 2 x1 Paper Length Sensor 1 Remove the feed tray Feed Tray 2 Turn the feed tray upside down and lay it on a flat surface 3 Release the hook 4 Remove the sensor cover 1 and turn it over ...

Page 21: ...Remove the sensor 2 x1 Paper Width Sensor 1 Remove the feed tray Feed Tray 2 Turn the feed tray upside down and lay it on a flat surface 3 Disconnect the sensor plate 1 x1 4 Remove the sensor plate x3 5 Disconnect the sensor cover 1 x2 ...

Page 22: ...over 2 Paper height sensors 1 and 2 and the tray lower limit sensor are mounted on the frame The left photo shows the sensors and connectors on the front side of the frame The right photo shows where the sensor pawls protrude from the back of the frame 3 To remove a sensor disconnect it from the frame and the harness x3 x1 Relay Sensor 1 Remove the covers for the relay motor removal Relay Motor 2 ...

Page 23: ...Replacement and Adjustment 19 3 Disconnect the top cover 2 at the front x2 4 Disconnect the top cover 1 at the rear x2 5 Remove the top cover 2 6 Remove the sensor bracket 1 x1 7 Remove the sensor 2 x1 x1 ...

Page 24: ...1 Replacement and Adjustment 20 Rollers Overview The bypass feed rollers can be accessed from the top of the LCIT Roller Removal 1 The rollers are behind the snap off cover 2 Pull off cover A ...

Page 25: ...4 Remove plate A 5 Remove screw B 6 Push the sensor positioning plate to the left If this plate is not pushed to the left you will not be able to remove the feed roller 7 Remove A Pick up roller snap ring and roller B Feed roller snap ring and roller ...

Page 26: ...Replacement and Adjustment 22 8 Remove the separation snap ring and roller A 9 After installing new rollers turn on the machine and wait for it to warm up 10 Re set the PM Counts for the replaced rollers ...

Page 27: ...ray Lift Switch 1 Remove the front covers Right Front Cover Left Front Cover 2 Remove the switch A Pickup Solenoid 1 Remove all the covers Right Front Cover Left Front Cover Rear Cover Top Cover 2 Disconnect the solenoid 1 x1 3 Unfasten the solenoid 2 x1 ...

Page 28: ...th the plate of the pick up roller shaft below To confirm correct installation manually move the solenoid plunger to the left and right When the solenoid plunger is moved the pick up roller should move up and down smoothly Bypass Tray PCB 1 Remove the rear cover Rear Cover 2 Disconnect the connectors on the board 3 Remove the board Two rivets secure the lower edge of the board ...

Page 29: ...1 Replacement and Adjustment 25 ...

Page 30: ...EF 10 15 SEF 10 14 SEF 13 19 1 5 SEF 13 19 SEF 12 3 5 19 1 5 SEF 12 3 5 18 1 2 SEF 13 18 SEF SRA3 SEF SRA4 LEF SEF Custom size SEF 100 to 330 2 mm LEF 139 7 to 487 7 mm Paper weight 52 3 to 216 0g m2 Paper size adjustment Universal size tray with adjustable size fences for width adjustment one end fence for length adjustment Power source DC 24V 10 5 V5 Main machine to LCT Power consumption Less th...

Page 31: ...oller 13 Paper Width Sensor 5 Pick up Solenoid 14 Tray Lift Motor 6 Tray Upper Limit Sensor 1 2 15 Paper End Sensor 7 Feed Roller 16 Separation Roller 8 Pick up Roller 17 Paper Feed Sensor 9 Tray Lower Limit Sensor Drive Layout No Name No Name 1 Transport Roller 2 7 Lift Motor 2 Transport Roller 1 8 Lift Plate 3 Grip Roller 9 Pick up Roller 4 Relay Motor 10 Separation Roller 5 Transport Motor 11 F...

Page 32: ...2 Tray Upper Limit Sensor 2 12 Tray Lower Limit Sensor 3 Relay Motor 13 Paper Length Sensor 4 Pick up Solenoid 14 Paper Width Switch 5 Transport Motor 15 Paper End Sensor 6 Paper Feed Motor 16 Cooling Fan for Transport Motor 7 Tray Lift Motor 17 Tray Lift Switch 8 Cooling Fan for Feed Motor 18 Paper Feed Sensor 9 PCB 19 Relay Sensor 10 Paper Height Sensor 1 ...

Page 33: ...for paper feed S2 Tray Lower Limit Sensor Detects when the tray is at its lowest possible position S3 Paper End Sensor Informs the copier when the paper in the bypass tray has run out S4 Paper Feed Sensor Detects the copy paper coming to the 4th paper feed roller and checks for misfeeds S5 Paper Height Sensor 1 Paper end sensor The paper height sensor pair 1 and 2 work together to monitor the heig...

Page 34: ...No Name Description SW1 Tray Lift Switch Switches the tray lift motor on and off to raise and lower the bottom plate of the tray to the feed position This switch must be pressed to start paper feed SW2 Paper Width Switch A slide switch connected to the side fences When the side fences are moved to match the paper width five feelers inside the paper size switch slide along wiring patterns of a term...

Page 35: ...the bottom plate the actuator D lowers and activates paper height sensor 1 E and then paper height sensor 2 F as the bottom plate continues to rise With the tray full the actuator remains upright and deactivates neither paper height sensor During continuous feed the actuator rotates downward through three positions deactivating the first sensor then both sensors then only the second sensor These s...

Page 36: ...o the feed roller D and separation roller E When the feed sensor not shown detects the leading edge of the sheet the pick up solenoid raises the pick up roller and the feed roller feeds the sheet Unlike the separation rollers in the LCT the separation roller always remains in contact with the feed roller above The transport motor F then feeds the paper into the bypass tray and the relay motor G fe...

Page 37: ...read to determine whether it is High in contact with a pattern wire or Low not in contact with a wire The paper length sensor reading ON or OFF is used with the paper width reading to determine the paper size For more details about how the paper size is determined see the paper size detection table on the next page The paper end sensor 2 de activates when the last sheet is fed reports that the pap...

Page 38: ... determined by whether the feeler is in contact with the wire of a pattern H High 5 V Inactive L Low 0 V Active The machine determines the paper size automatically by reading the output of the paper width switches and the paper length sensor The machine cannot detect the paper size automatically The user must select the paper size manually before starting the job See Selecting the Paper Size for U...

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