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Rico LCIT RT5110 Field Service Manual

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LCIT RT5110
Machine Code:D3ET
Field Service Manual
Ver 1.0
Latest Release: Feb, 2018
Initial Release: Feb, 2018
(c) 2018 Ricoh Co.,Ltd.

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  • Page 1 LCIT RT5110 Machine Code:D3ET Field Service Manual Ver 1.0 Latest Release: Feb, 2018 Initial Release: Feb, 2018 (c) 2018 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 Connector Clamp E-ring Flat Flexible Cable Timing Belt Short Edge Feed Long Edge Feed Black Cyan Magenta...

  • Page 5: Table Of Contents

    Table of Contents Replacement and Adjustment ......................3 Removing Trays ............................. 3 Doors and Covers ........................... 5 Top Covers ............................5 Left Rear Cover ..........................6 Right Rear Cover ..........................6 Right Cover ............................7 Inner Covers ............................7 Jam LED ............................... 10 Jam LED (LCIT Exit) .........................
  • Page 6 Overview Layout ..........................35 Drive Layout ............................36 Electrical Components ........................37 Roller Drive Layout ........................... 41 Paper Transport Layout ........................42 Paper Handling ............................. 43 Paper Feed Rollers ........................... 43 Paper Feed Motors ........................... 43 Paper Separation ..........................44 Paper Detection and Lift ........................

  • Page 7: Replacement And Adjustment

    1.Replacement and Adjustment 1. Replacement and Adjustment Removing Trays  The 1000-sheet tray weighs 27 kg (60 lb) empty. The 2000-sheet tray weighs 20 kg (44 lb) empty.  To prevent damage to the tray and personal injury, never attempt to lift a tray alone or without attaching the carrying handles, especially if a tray is loaded with paper.
  • Page 8 1.Replacement and Adjustment With one person on each side of the tray, lift it carefully and remove it from the rails.

  • Page 9: Doors And Covers

    1.Replacement and Adjustment Doors and Covers Top Covers  The top covers must be removed in order from left to right. Open the front door. Disconnect the front [A] and rear [B] ( x4). Remove the top left cover. Remove the left flat cover ( x2).

  • Page 10: Left Rear Cover

    1.Replacement and Adjustment Remove the center flat cover ( x2). Remove the right flat cover ( x2). Left Rear Cover Remove the left rear cover [A] ( x8). Right Rear Cover Remove the left rear cover. (Left Rear Cover)

  • Page 11: Right Cover

    1.Replacement and Adjustment Remove the right rear cover [A] ( x6). Right Cover Pull all the LCT trays out a short distance. Remove the right cover [A] ( Inner Covers Inner Upper Cover Open the front door.
  • Page 12 1.Replacement and Adjustment Remove the knob [A]. Lower the lever, and then remove the inner upper cover [A]. Inner Lower Cover Open the front door. Remove the inner lower cover [A] (  Be careful not to interfere with the hook.
  • Page 13 1.Replacement and Adjustment...

  • Page 14: Jam Led

    1.Replacement and Adjustment Jam LED Jam LED (LCIT Exit) Open the front door. Remove the inner upper cover. (Inner Upper Cover) Remove the jam LED (LCIT exit) [A]. Jam LED (1st to 3rd Tray Unit) The 2nd tray LED is taken in the photos in the following replacement procedure as an example, but you can replace other jam detection LEDs in the same way.
  • Page 15 1.Replacement and Adjustment Remove the knob [A] of the paper feed unit. Remove the cover [A] of the paper feed unit. Remove the jam LED [A].

  • Page 16: Paper Feed

    1.Replacement and Adjustment Paper Feed Paper Feed Unit Pull out the 1st, 2nd or 3rd tray. Remove the Inner upper or lower cover. (Inner Covers  For the paper feed unit in the top tray or middle tray, remove the inner upper cover. ...

  • Page 17: Paper Feed, Separation And Pickup Rollers

    1.Replacement and Adjustment Paper Feed, Separation and Pickup Rollers 1st Tray (Top Tray)  Before doing this procedure, turn off the main machine and disconnect it from its power source. Open the front door [A]. Pull out the top tray [B] until it stops.
  • Page 18 1.Replacement and Adjustment Remove the side plate [A] ( x 2). Pull the paper feed unit [A]. Slide the sensor bracket [A] to the front ( x 1).  Note the original position of this bracket. It must be re-installed at its original position. Remove: [A]: Paper feed roller ( x 1) [B]: Separation roller ( x 1)
  • Page 19 1.Replacement and Adjustment 2nd Tray (Middle Tray)  Before doing this procedure, turn off the main machine and disconnect it from its power source. Open the front door [A]. Pull out the middle tray [B]. Remove the side plate [A] ( x 2).
  • Page 20 1.Replacement and Adjustment Pull the paper feed unit [A] ( x 2). Slide the sensor bracket [A] to the front ( x 1).  Note the original position of this bracket. It must be re-installed at its original position. Remove: [A]: Paper feed roller ( x 1) [B]: Separation roller ( x 1) [C]: Pickup roller ( x 1)
  • Page 21 1.Replacement and Adjustment 3rd Tray (Bottom Tray)  Before doing this procedure, turn off the main machine and disconnect it from its power source. Open the front door [A]. Pull out the bottom tray [B]. Take out the paper end fence [A] if it is stored here. Remove the side plate [A] ( x 2).
  • Page 22 1.Replacement and Adjustment Pull the paper feed unit [A] ( x 2). Slide the sensor bracket [A] to the front ( x 1).  Note the original position of this bracket. It must be re-installed at its original position. Remove: [A]: Paper feed roller ( x 1) [B]: Separation roller ( x 1) [C]: Pickup roller ( x 1)

  • Page 23: Lct Motors

    1.Replacement and Adjustment LCT Motors Transport Motors, LCT Exit Motor 1st, 2nd, and 3rd Transport Motors Remove:  Left rear cover (Left Rear Cover  [A] Motor unit (  [B] Motor ( LCT Exit Motor Remove:  Left rear cover Left Rear Cover ...

  • Page 24: Lift Motors

    1.Replacement and Adjustment same for each feed tray. Remove the left rear cover. (Left Rear Cover) Remove the motor unit [A] ( Remove: [A]: Springs (x2) (First, loosen the screws (x2) [B]: Paper feed motor ( [C]: Grip motor ( Reinstallation Attach the tension spring, then tighten the screws to tighten the belts.
  • Page 25 1.Replacement and Adjustment 2nd Lift Motor Remove the right rear cover. Remove the motor unit [A] ( x 5, x1). Remove the 2nd lift motor [A] ( x 2).

  • Page 26: Exit Roller Lift Motor

    1.Replacement and Adjustment Exit Roller Lift Motor Remove the left rear cover. (Left Rear Cover) The motor is located at [A]. Disconnect the motor at [A] and [B] ( x1, x1). Disconnect the motor mount [A] ( x1). Remove the motor [B].

  • Page 27: Cooling Fan

    1.Replacement and Adjustment Separate the motor and bracket ( x1). Cooling Fan Remove the left rear cover. (Left Rear Cover) Remove the fan bracket [A] ( x 2, x 1, x 1). Remove the cooling fan [A] ( x 2). ...

  • Page 28: Electrical Components

    1.Replacement and Adjustment Electrical Components Paper Feed and End Sensors Pull out the paper feed unit. Remove the sensor bracket [A] ( x1, black screw x1, x 2). Remove: [A]: Paper feed sensor (hooks) [B]: Paper end sensor (hooks) When reinstalling the sensor bracket ...

  • Page 29: Lift Sensor

    1.Replacement and Adjustment Lift Sensor Remove the paper feed unit. (Paper Feed Unit). Remove the sensor bracket [A] ( x1). Remove the lift sensor [A] ( x3). LCT Exit Sensor  Disconnect the LCT from the main machine. [A] Exit sensor unit ( [B] Exit sensor...

  • Page 30: Exit Roller Lift Sensor

    1.Replacement and Adjustment Exit Roller Lift Sensor  Disconnect the LCT from the main machine. Remove the sensor bracket [A] ( x1). Remove the exit roller lift sensor [A] ( x1, x4).

  • Page 31: Removing The Vertical Feed Unit

    1.Replacement and Adjustment Removing the Vertical Feed Unit Open the front door.. Remove:  Inner upper cover Inner Upper Cover  Inner lower cover Inner Lower Cover  Left rear cover Left Rear Cover Disconnect the harness clamps x 2).
  • Page 32 1.Replacement and Adjustment Disconnect the motor harnesses x 3, x11). Remove: [A]: Upper stay ( x 2) [B]: Lower stay ( x 2) Remove the vertical feed unit [A] ( x 6).

  • Page 33: 1St Transport, 1St Relay Upper, Lower Sensors

    1.Replacement and Adjustment 1st Transport, 1st Relay Upper, Lower Sensors Remove the vertical feed unit. ( Removing the Vertical Feed Unit) Remove: [A]: 1st Transport sensor ( [B]: 1st Relay sensor – upper ( [C]: 1st Relay sensor – lower ( 2nd Relay Sensor, 2nd Transport Sensor Remove the vertical feed unit.

  • Page 34: 3Rd Relay Sensor, 3Rd Transport Sensor

    1.Replacement and Adjustment 3rd Relay Sensor, 3rd Transport Sensor Remove the vertical feed unit. ( Removing the Vertical Feed Unit) Remove: [A]: 3rd Relay sensor ( [B]: 3rd Transport sensor ( Main Control Board Remove the left rear cover. ( Left Rear Cover) Remove the right rear cover.
  • Page 35 1.Replacement and Adjustment [B]: Clamp bracket ( x 2) [C]: Paper height sensors (x 4) ( x3, x 2 each) Paper Width Sensors Remove the left rear cover. ( Left Rear Cover) Remove: [A]: Paper width sensor unit ( x 2, x 3) [B]: Paper width sensors ( x 3) ( x2 each)

  • Page 36: Adjustment

    1.Replacement and Adjustment Adjustment Side Registration Adjustment Normally the side registration of the image can be adjusted with SP1-002-004 to -006 (Side-to-Side Reg (Shift: Off) : 3-Tray LCT Tray1, 2, 3). But if the punch hole positions are not aligned from a particular feed tray, adjust the side registration by changing the tray cover position for the tray, as described below.

  • Page 37: Troubleshooting

    2.Troubleshooting 2. Troubleshooting Double Feed Problem from LCT If double feed occurs several times when paper is fed from an LCT (1st, 2nd and 3rd), try to change the upper limit of the paper stack in the LCT tray. Changing the upper limit of the paper stack in the LCT tray can improve paper separation for the paper stack in the LCT tray.

  • Page 38: Detailed Descriptions

    3.Detailed Descriptions 3. Detailed Descriptions Specifications Item Specification Dimensions (W x D x H) 865 x 730 x 1218 mm Weight Less than 185 kg Configuration Console Type Power source From the mainframe Noise (Power level) Paper size A5 (LEF)/5.5” x8.5” (LEF) – 13” x 19.2” (LEF) - Custom Size Paper - Width: 100.0 to 330.2 mm (3.94 to 13.00 inches) Length: 139.7 to 487.7 mm (5.50 to 19.20 inches)

  • Page 39: Mechanical Component Layout

    3.Detailed Descriptions Mechanical Component Layout Overview Layout Name Name 1st Paper Feed Unit* Lower Transport Rollers 2nd Paper Feed Unit Horizontal Transport Roller 3rd Paper Feed Unit LCT Exit roller 1st Tray Drive Belt Upper Transport Rollers 2nd Tray Drive Belt Feed Slot (from Bypass Tray) 3rd Tray Drive Belt * Each feed unit has 1 paper feed motor that drives the pick-up roller and paper feed roller, and 1 grip...

  • Page 40: Drive Layout

    3.Detailed Descriptions Drive Layout Name Name 1st Lift Motor 2nd Grip Motor 1st Paper Feed Motor 2nd Paper Feed Motor 1st Grip Motor 3rd Transport Motor 1st Transport Motor 3rd Grip Motor LCT Exit Motor 3rd Paper Feed Motor Exit Roller Lift Motor 3rd Lift Motor 2nd Transport Motor 2nd Lift Motor...

  • Page 41: Electrical Components

    3.Detailed Descriptions Electrical Components 1st tray and 3rd tray Name Name Paper Height Sensor 1 Paper Width Sensor 2 Paper Height Sensor 2 Paper Length Sensor Paper Height Sensor 3 Tray Rear Fan Paper Height Sensor 4 Tray Front Fan Paper Width Sensor 3 Paper LED Paper Width Sensor 1...
  • Page 42 3.Detailed Descriptions Name Name Paper Height Sensor 2 Paper Width Sensor 2 Paper Height Sensor 3 Paper Length Sensor Paper Height Sensor 4 Tray Rear Fan Tray Front Fan Paper Width Sensor 3 Paper Feed Unit Name Paper Feed Sensor Paper End Sensor Lift Sensor Pick-up Solenoid...
  • Page 43 3.Detailed Descriptions Vertical Transport Name Name 1st Transport Sensor Exit Roller Lift Motor 1st Relay Sensor 1 2nd Transport Motor 1st Relay Sensor 2 LCT Exit Motor 2nd Transport Sensor 1st Transport Motor 2nd Relay Sensor Paper exit jam LED 3rd Transport Sensor 1st tray jam LED 3rd Relay Sensor...
  • Page 44 3.Detailed Descriptions Others Name Name 1st Lift Motor 3rd Grip Motor Main Control Board LCIT Cooling Fan 2nd Lift Motor 2nd Paper Feed Motor 3rd Lift Motor 2nd Grip Motor Anti-Condensation Heaters 1st Paper Feed Motor Door Safety Switch 1st Grip Motor 3rd Paper Feed Motor...

  • Page 45: Roller Drive Layout

    3.Detailed Descriptions Roller Drive Layout Name Name 1st Transport Motor 1st Paper Feed Motor 2nd Transport Motor 1st Grip Motor LCT Exit Motor 2nd Paper Feed Motor Exit Roller Lift Motor 2nd Grip Motor 3rd Transport Motor 3rd Paper Feed Motor 3rd Grip Motor...

  • Page 46: Paper Transport Layout

    3.Detailed Descriptions Paper Transport Layout Name Name 3rd Transport Sensor 1st Transport Sensor 3rd Relay Sensor Paper Tray Jam LED 2nd Transport Sensor Paper Feed Sensor 2nd Relay Sensor Lift Sensor Exit Roller Lift Sensor Paper End Sensor LCT Exit Sensor Paper Height Sensor 1 Paper exit jam LED Paper Height Sensor 2...

  • Page 47: Paper Handling

    3.Detailed Descriptions Paper Handling Paper Feed Rollers This LCT has three paper tray feed stations: The 1st and 3rd tray each hold 1,000 sheets of paper. The 2nd tray holds 2,000 sheets of paper. Total: 4,000 sheets Each tray contains four rollers: ...

  • Page 48: Paper Separation

    3.Detailed Descriptions Paper Separation When the paper feed station is selected for a job, the paper feed motor [B] and grip motor [C] turn on.  When the feed motor [B] turns on, it drives the feed roller [D]. It also drives the pick-up roller [E] because the pick-up roller is linked to the feed roller by an idle gear.
  • Page 49 3.Detailed Descriptions  Next, the paper feed motor switches on again (with the pick-up roller rotating) to feed the paper to the grip rollers [G] which pull the paper out of the tray. If the pick up assist function is off: ...
  • Page 50 3.Detailed Descriptions Separation Adjustment The paper feed unit has a screw [A] for adjusting the separation pressure of the separation roller. This is a mechanism to move the adjusting plate [1] and so change the spring force, allowing the force exerted by the arm [2] supporting the separation roller to be adjusted.

  • Page 51: Paper Detection And Lift

    3.Detailed Descriptions Adjustable between 3 levels as shown below. [A]: Normal (Default) [B]: Separation pressure (medium) [C]: Separation pressure (strong) If paper misfeeding occurs, increase the separation pressure to prevent it. However, this may cause double feeding to occur more frequently. Paper Detection and Lift Detection When the tray set in the machine, the tray is detected by the drawer connector on the back side of the...

  • Page 52: Lift Sensor

    3.Detailed Descriptions  When the lift motor rotates forward, the tray bottom plate [E] rises. The tray rises until the top of the paper stack pushes up the pick-up roller and the lift sensor in the feed unit is de-activated. ...

  • Page 53: Paper Size Detection

    3.Detailed Descriptions Paper Size Detection Each tray has three paper width sensors and one paper length sensor. The illustration below shows how four sensors are arranged in the tray. The table shows how the three width sensors and one length sensor are used to determine the paper size in the 1st, 2nd, and 3rd paper trays.

  • Page 54: Remaining Paper Detection

    3.Detailed Descriptions B5 SEF 182×257 mm F SEF 8"×13" A5 SEF 148×210 mm HLT SEF "×8 " YES: Detected automatically NO: Not detected automatically. Requires size setting change with the "Tray Paper Setting" key on the copier operation panel to detect the desired paper size. H: Sensor OFF L: Sensor ON Remaining Paper Detection...

  • Page 55: Air Assist Feed Mechanism

    3.Detailed Descriptions Finally, when the last sheet feeds, the paper end sensor signals that the tray is empty. [A] Paper Height Sensor Actuator [B] 1st Paper Height Sensor 4 [C] 1st Paper Height Sensor 3 [D] 1st Paper Height Sensor 2 [E] 1st Paper Height Sensor 1 (Near End) Air Assist Feed Mechanism Two air assist fans [A] and [B] comprise the air assist mechanism.

  • Page 56: Paper End Detection

    3.Detailed Descriptions Paper End Detection The paper end sensor [A] detects the top sheet of the paper in the tray by monitoring the reflected light. When the paper tray runs out of paper, the paper end sensor does not receive the reflected light due to the cutout [B].
  • Page 57 3.Detailed Descriptions [A]: 1st tray jam LED [B]: 2nd tray jam LED [C]: 3rd tray jam LED [D]: Paper exit jam LED LED operation specifications  The corresponding LED flashes when a jam occurs (also including initial jams) via the sensor that detects the position of remaining paper.

  • Page 58: Increased The Rigidity Of The Side Fence

    3.Detailed Descriptions Sensor 1st tray jam 2nd tray jam 3rd tray jam Paper eixt jam 3rd Paper Feed Sensor 3rd Transport Sensor 3rd Relay Sensor LCT Exit Sensor F: Flashing -:Not flashing Increased the Rigidity of the Side Fence A pole [A] is installed from the top to the bottom of the front side fence of the 2,000-sheet tray (2nd tray).

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