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LCIT RT5130
Machine Code: D3GB
Field Service Manual
Ver 1.0
Latest Release: Mar, 2019
Initial Release: Mar, 2019
Copyright (c) 2019 Ricoh Co.,Ltd.

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Summary of Contents for Ricoh LCIT RT5130

  • Page 1 LCIT RT5130 Machine Code: D3GB Field Service Manual Ver 1.0 Latest Release: Mar, 2019 Initial Release: Mar, 2019 Copyright (c) 2019 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 Overview and Components ....................... 3 Basic Specifications ..........................3 Paper Specifications ..........................4 Electrical Component and Drive Layout ....................6 Structural Overview ..........................9 Mechanism Overview ......................... 11 Operation Flow ........................... 12 Paper Feed/ Separation Mechanism ....................13 Adjusting Separation Pressure .......................
  • Page 6 Cooling Fan 1 ..........................44 Cooling Fan 2 ..........................45 Cooling Fan 3 ..........................48 Electrical Components ........................49 Paper Feed and End Sensors ......................49 Lift Sensor ............................49 Exit Sensor ............................. 50 Paper Height Sensors, Paper Size Sensors ................... 50 Main Control Board .........................
  • Page 7: Overview And Components

    1.Overview and Components 1. Overview and Components Basic Specifications Items Specification Power consumption 210 W (Power supplied from the main unit) Dimensions (W × D × 540 × 730 × 1,000 mm (21.3 × 28.8 × 39.4 inches) (Except protruding parts) Weight 106 kg (233.7 lb.) or less...
  • Page 8: Paper Specifications

    1.Overview and Components Paper Specifications LCT (Trays 4 and 5) Paper Type and Weight Paper Size Paper Capacity 52.3–216.0 g/m2 (14.0 lb. Bond– Select the paper size using the paper size 1,000 sheets 79.9 lb. Cover) selector: Paper Weight 1–Paper Weight 5 A4 LEF, A5 LEF/SEF, B5 JIS LEF, 8 ×...
  • Page 9 1.Overview and Components *1 Do not stack paper over the limit mark. The maximum number of sheets you can set at once depends on the paper's thickness and condition.
  • Page 10: Electrical Component And Drive Layout

    1.Overview and Components Electrical Component and Drive Layout Name Name Exit Sensor Tray 5th Paper Height Sensor 3 Release HP Sensor Tray 5th Paper Height Sensor 4 Tray 5th Transport Sensor Tray 6th Paper Height Sensor 1 Relay Sensor Tray 6th Paper Height Sensor 2 Tray 4th Transport Sensor Tray 6th Paper Size Switch LCT Exit Separation Motor...
  • Page 11 1.Overview and Components Name Name Tray 6th Vertical Transport motor Main Controller Board Tray 5th Vertical Transport motor Tray 5th Paper Feed Motor Tray 5th Transport Motor Tray 5th Lift Motor Tray 4th Vertical Transport motor Tray 6th Paper Feed Motor LCT Exit Motor Tray 6th Transport Motor Tray 4th Transport Motor...
  • Page 12 1.Overview and Components Name Name Tray 4th Paper Feed Unit LED Tray 5th _LED1,2 Tray 4th _LED1,2 Tray 6th Paper Feed Unit LCT Exit LED Tray 6th _LED1,2 Tray 5th Paper Feed Unit LED...
  • Page 13: Structural Overview

    1.Overview and Components Structural Overview Name Name Tray 4th Transport Motor Tray 6th Paper Feed Motor Pick-up Solenoid Tray Driving Belt Lift Sensor Pickup Roller Tray 4th Paper Feed Motor Separation Roller Paper Feed Sensor Paper Feed Roller...
  • Page 14 1.Overview and Components Name Name Paper End Sensor Grip Roller LCT Exit Separation Motor Tray 6th Transport Motor Tray 5th Transport Motor Tray 6th Vertical Transport Motor Tray 5th Paper Feed Motor Tray 5th Vertical Transport Motor Paper Height Sensor 1 Release HP Sensor Paper Height Sensor 2 LCT Exit Motor...
  • Page 15: Mechanism Overview

    1.Overview and Components Mechanism Overview Mechanism Description Paper RR system with non-contact magnet type maintenance-free torque limiter Feed/Separation Tray Set (Size) Three switches detect paper size. Detection Paper size is fixed by the side fence. Trays 4 and 5 are determined by the movement of the detector.
  • Page 16: Operation Flow

    1.Overview and Components Operation Flow LCIT RT5130 is controlled by the main machine. When the main power is turned ON, this machine detects connection. If LCIT RT5130 is connected, this machine always checks tray set and paper, and controls the movement of the LCT.
  • Page 17: Paper Feed/ Separation Mechanism

    1.Overview and Components Paper Feed/ Separation Mechanism All three trays are the same. Each has a FRR paper feed system made up of the pickup roller, the paper feed roller, and the separation roller, and a grip transport roller. There is a magnet type torque limiter at the rear of the separation roller, .
  • Page 18: Adjusting Separation Pressure

    1.Overview and Components Adjusting Separation Pressure The screw [A] is used to adjust the separation pressure for the reverse roller. Moving the adjustment plate [B] changes the pressure. Standard position of the screw: right edge Moving the screw to the right increases the separation pressure. If sheets are not delivered, increasing the separation pressure is effective, but this may lead to double- feed.
  • Page 19 1.Overview and Components Name Name Paper Feed Motor Separation Roller Transport Motor Paper Feed Roller Pickup Roller Name Name Pick-up Solenoid Pickup Roller Paper Feed Roller Separation Roller...
  • Page 20 1.Overview and Components [A] The cover of the paper feed roller...
  • Page 21: Tray Set (Size) Detection

    1.Overview and Components Tray Set (Size) Detection Detection Timing Trays 4 and 5 are set when one of SWs 1, 2, or 3 of the four-way push switch turns to “LOW” (the push switch also detects paper size). Tray 6 is set when SW1 turns to “LOW”. [A] Size Sensor [B] Size Detection Plate Size Detection...
  • Page 22: Tray Lifting/ Lowering

    1.Overview and Components Tray Lifting/ Lowering Lifting (Upper Limit Detection) The rotation of the lift motor coupling at the rear of the tray lifts the tray via the pulley and belt on the axis of the belt driving. Name Name Tray Oil Damper (third tray only) Lift Motor...
  • Page 23 1.Overview and Components Name Pick-up Solenoid Lift Sensor Pickup Roller Lowering When the tray is pulled out, it becomes detached from the coupling of the lift motor, and drops by its own weight. Only Tray 6 has an oil damper to absorb impact when the tray drops down. Error Detection ...
  • Page 24: Remaining Paper Detection

    1.Overview and Components Remaining Paper Detection The amount of paper is detected using four photo interrupters. Remaining paper is displayed on the display of the operation panel. Name Name Paper Height Sensor 1 Paper Height Sensor 3 Paper Height Sensor 2 Paper Height Sensor 4 Relationship Between the State of the Sensor and the Amount of Paper Remaining Paper...
  • Page 25: Paper End Detection

    1.Overview and Components Paper End Detection The upper side stay has a paper end sensor (reflex type sensor). This sensor detects paper end by detecting the face of the paper. When paper end is detected, the lift motor rotates backward to lower the bottom plate of the tray.
  • Page 26: Exit Roller Contact/Separation

    1.Overview and Components Exit Roller Contact/Separation The paper exit has a contact mechanism. The exit rollers must be separated when paper registration is performed in the registration unit of the main machine. The LCT exit separation motor turns on, and the cam at the rotation axis is rotated via gears. The roller contact arm that is interlocked with the cam moves up and down to separate the driven exit roller from the driving exit roller.
  • Page 27: Dehumidification

    1.Overview and Components Dehumidification If it is necessary, anti-condensation heaters can be installed to the bottom of the LCT to dehumidify it. The anti-condensation heaters remain on even when the power is off. Notes on Tray Lifting Control Flow To ignore the chattering of the sensor, the machine deems that the tray is set when information of tray close (shut) lasted for 200 msec.
  • Page 28: Jam Detection Led

    1.Overview and Components Jam Detection LED There are jam detection LEDs on the inner cover. [A]: 1st tray jam LED [B]: 2nd tray jam LED [C]: 3rd tray jam LED [D]: Paper exit jam LED Jam LED Specifications  The corresponding LED flashes when a jam (including initial jams) occurs. A sensor detects the position of the jammed paper.
  • Page 29 1.Overview and Components Sensor 1st Tray Jam 2nd Tray Jam 3rd Tray Jam Paper Exit Jam 3rd Relay Sensor LCT Exit Sensor...
  • Page 30: Replacement And Adjustment

    2.Replacement and Adjustment 2. Replacement and Adjustment Doors and Covers Front Door and Covers Top Covers, Rear Cover Remove the top right edge cover ( x2). Disconnect the top flat cover [A] and slide it in the direction of the arrow ( x2).
  • Page 31 2.Replacement and Adjustment Remove the rear cover [A] ( x8). Remove the left edge cover [A] ( x11). Right Cover Remove the right cover (...
  • Page 32 2.Replacement and Adjustment Door Remove the top covers. (Top Covers, Rear Cover) Free the harness, and then disconnect it ( x1).
  • Page 33: Inner Covers

    2.Replacement and Adjustment Remove the bracket screw ( x1). Lift the door off its hinges, and then remove it. Inner Covers Remove the inner cover [A] ( x3, Knobs x3).
  • Page 34 2.Replacement and Adjustment Remove the inner cover [B] ( x2, Knob x1).
  • Page 35: Trays

    2.Replacement and Adjustment Trays Top Tray (Tray 4) Open the front door [A]. Pull open the top tray [B] until it stops. Lift the top tray [A] out of the drawer ( x 4). Middle Tray (Tray 5) Open the front door. Pull open the middle tray [A] until it stops.
  • Page 36: Bottom Tray (Tray 6)

    2.Replacement and Adjustment Lift the middle tray [A] out of the drawer ( x 4, x 2). Bottom Tray (Tray 6) Open the front door. Pull open the bottom tray [A] until it stops. Lift the bottom tray [A] out of the drawer ( x 4, x 2).
  • Page 37: Paper Feed

    2.Replacement and Adjustment Paper Feed Paper Feed Units Top Tray Paper Feed Unit Remove the rear cover. (Front Door and Covers) Remove the right cover.(Front Door and Covers) Remove the inner cover. (Inner Covers) Remove the top tray. (Top Tray (Tray Remove the bracket [A] ( x 4) Push the slide rails [A] into the machine.
  • Page 38 2.Replacement and Adjustment Remove the screw [A] at the rear. Remove the stay [A] ( x 2) Pull the paper feed unit [B], and then move it to the lower right side ( x 2). 10. Remove the paper feed unit [A] Middle Tray Paper Feed Unit Remove the rear cover.
  • Page 39 2.Replacement and Adjustment Push the slide rails [A] into the machine. Remove the screw [A] at the rear. Pull out the top tray [A]. Pull the paper feed unit with stay [B], and then move it to the lower right side ( x 2, x 2).
  • Page 40: Paper Feed, Separation And Pickup Rollers

    2.Replacement and Adjustment Push the slide rails [A] into the machine. Remove the screw [A] at the rear. Pull out the middle tray. Pull the paper feed unit with stay [A], and then move it to the right-lower side ( x 2, x 2).
  • Page 41 2.Replacement and Adjustment Top Tray Remove the top tray. (Top Tray (Tray Remove the following rollers: [A]: Paper feed roller ( x 1) [B]: Separation roller ( x 1) [C]: Pickup roller ( x 1) Middle, Bottom Tray Remove the middle tray or bottom tray. Remove the inner upper cover of the middle tray or bottom tray (Inner Covers)
  • Page 42 2.Replacement and Adjustment...
  • Page 43: Motors

    2.Replacement and Adjustment Motors Paper Feed and Transport Motors Each paper feed unit has a paper feed motor and a transport motor The removal procedure is the same for each feed tray. Remove the rear cover. (Front Door and Covers) Remove the motor unit [A] ( Remove the springs [A] (x 2) First, loosen the screws (x2)
  • Page 44: Tray 4Th, 5Th Lift Motors

    2.Replacement and Adjustment Tray 4th, 5th Lift Motors Remove the rear cover. (Front Door and Covers) Remove the main control board bracket (Main Control Board) Remove Tray 4th lift motor [A] ( x 1) Remove Tray 5th lift motor [B] ( x 1) 6th Lift Motor Remove the rear and right covers.
  • Page 45: 5Th Transport Motor

    2.Replacement and Adjustment Remove the vertical transport motor [A] ( Re-installation Make sure that the tension spring is connected, then tighten the screw 5th Transport Motor Remove:  Rear cover (Front Door and Covers) [A] Motor unit ( x 1). [B] Spring (x1).
  • Page 46: 6Th Transport Motor

    2.Replacement and Adjustment [A] 5th Transport motor ( Reinstallation  Be sure that the tension spring is connected, then tighten the screw 6th Transport Motor Remove:  Rear cover (Front Door and Covers) [A] Motor unit ( x 1). [B] Spring (x1). First, loosen screw x 1).
  • Page 47: Lct Exit Separation Motor

    2.Replacement and Adjustment [A] LCT exit motor ( Reinstallation  Be sure that the tension spring is connected, then tighten the screw LCT Exit Separation Motor Remove the rear cover. (Front Door and Covers)
  • Page 48: Cooling Fan 1

    2.Replacement and Adjustment Remove the motor unit [A] ( x 1). Remove the spring (x1) [A]. First, loosen screw x 1). Remove the LCT exit separation motor [B] ( Re-installation Make sure that the tension spring is connected, then tighten the screw Cooling Fan 1 Remove the rear cover.
  • Page 49: Cooling Fan 2

    2.Replacement and Adjustment Remove the cooling fan [A] ( x 2, x 1, x 1)  When reinstalling the cooling fan, make sure that the cooling fan is installed with its decals facing upward. Cooling Fan 2 Remove the rear cover (Front Door and Covers).
  • Page 50 2.Replacement and Adjustment Remove the brackets [A], [B], and [C]. Remove the screws from the left side of the transport unit.
  • Page 51 2.Replacement and Adjustment Remove the screws from the right side of the transport unit. Remove the transport unit [A], and remove the cooling fan 2 [B].
  • Page 52: Cooling Fan 3

    2.Replacement and Adjustment Cooling Fan 3 Remove the cooling fan 3 [A] with the bracket. Remove the cooling fan 3 [A].
  • Page 53: Electrical Components

    2.Replacement and Adjustment Electrical Components Paper Feed and End Sensors Remove the paper feed unit (Paper Feed Units) Remove the sensor bracket [A] ( x 1, x 3, x 1) Remove the following: [A]: Paper feed sensor (hooks) [B]: Paper end sensor (hooks) When reinstalling the sensor bracket ...
  • Page 54: Exit Sensor

    2.Replacement and Adjustment Remove the sensor bracket [A] ( x 1, x 1, x 1) Remove the lift sensor [A] ( Exit Sensor Remove the exit sensor [A] ( x1). Paper Height Sensors, Paper Size Sensors Remove the rear cover. (Front Door and Covers) Remove the right cover.
  • Page 55: Main Control Board

    2.Replacement and Adjustment Remove the paper size sensors [C] ( x 1 each). Main Control Board Main Board Remove the rear cover (Front Door and Covers) Remove the main control board [A] ( x 7, x 1, x All) Main Control Board Bracket Remove the rear cover (Front Door and Covers)
  • Page 56: Tray 4Th Paper Feed Unit Led

    2.Replacement and Adjustment Remove the bracket [A] ( x 3) Remove the main control board bracket [A] ( x 8, x 3, x All) Tray 4th Paper Feed Unit LED Remove the inner cover (upper). (Inner Covers) Remove the tray 4th paper feed unit LED [B] from the bracket [A]. ...
  • Page 57: Lct Exit Led

    2.Replacement and Adjustment side of the bracket [A]. LCT Exit LED Remove the inner cover (upper). (Inner Covers) Remove the tray LCT exit LED [B] from the bracket [A].  When attaching the LCT exit LED, set the LED connector [B] to the rear side of the bracket [A].
  • Page 58: Tray 5Th Paper Feed Unit Led/ Tray 6Th Paper Feed Unit Led

    2.Replacement and Adjustment Tray 5th Paper Feed Unit LED/ Tray 6th Paper Feed Unit LED The replacement procedure is the same for both LEDs. The procedure for the tray 5th paper feed unit LED is explained below. Remove the fixing screws of the tray 5th paper feed unit.
  • Page 59 2.Replacement and Adjustment Pull the paper feed tray and paper feed unit toward you, and remove the inner cover [A]. Remove the tray 5th paper feed unit LED [B] from the bracket [A].  When attaching the tray 5th paper feed unit LED, set the LED connector [B] to the rear side of the bracket [A].
  • Page 60 2.Replacement and Adjustment...
  • Page 61: Adjustments

    2.Replacement and Adjustment Adjustments Side Registration Adjustment Normally, the side registration of the image can be adjusted with SP1002 004-006 (Side-to-Side Registration – Tray 4, 5, 6). When the punch hole positions are not aligned when feeding from a particular tray, adjust the side registration by changing the tray cover position for the tray as described below.
  • Page 62 2.Replacement and Adjustment Make sure that the paper covers the entire area below the image position sensor (CIS) [C]. Enter the SP mode. Execute SP1910-002 (CIS Image Position Adjustment: LED Strength - LCT). This calibrates the amount of light to be emitted from the CIS. Execute SP1909 002 (CIS Image Position Adjustment: PWM After Adjustment - LCT).
  • Page 63: Double Feed Problem With The Lct

    2.Replacement and Adjustment 15. Execute SP1912-002 (CIS Image Position Adjustment: Normal Paper). This sets the CIS for operation with standard copy paper. 16. Exit the SP mode. 17. Select [User Tools]> [Adjust Settings for Operators]. 18. Once again execute "0111-4 to -7" (CIS Image Position Adjustment: Feed Setting) and reset the values for Trays 4, 5, 6, and 7 to "On".
  • Page 64 2.Replacement and Adjustment Tighten the screw on the lift sensor bracket [A].  To return the upper limit position to the default position, move the paper lift sensor bracket 0.7 mm to the opposite side.  Return the upper limit position to the default if a paper jam occurs at the paper feed sensor in the LCT.

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D3gb

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