Ricoh LCIT RT5130 Quick start guide

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.

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
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)

1
Table of Contents
1. 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 .......................................................................................................14
Paper Feed/ Separation..................................................................................................................14
Separation Roller Release..............................................................................................................14
Tray Set (Size) Detection....................................................................................................................17
Tray Lifting/ Lowering .........................................................................................................................18
Remaining Paper Detection................................................................................................................20
Paper End Detection...........................................................................................................................21
Exit Roller Contact/Separation............................................................................................................22
Dehumidification.................................................................................................................................23
Jam Detection LED.............................................................................................................................24
2. Replacement and Adjustment.........................................................................................................26
Doors and Covers...............................................................................................................................26
Front Door and Covers ...................................................................................................................26
Inner Covers ...................................................................................................................................29
Trays...................................................................................................................................................31
Top Tray (Tray 4)............................................................................................................................31
Middle Tray (Tray 5)........................................................................................................................31
Bottom Tray (Tray 6).......................................................................................................................32
Paper Feed.........................................................................................................................................33
Paper Feed Units............................................................................................................................33
Paper Feed, Separation and Pickup Rollers...................................................................................36
Motors.................................................................................................................................................39
Paper Feed and Transport Motors..................................................................................................39
Tray 4th, 5th Lift Motors..................................................................................................................40
6th Lift Motor...................................................................................................................................40
Vertical Transport Motor .................................................................................................................40
5th Transport Motor ........................................................................................................................41
6th Transport Motor ........................................................................................................................42
LCT Exit Separation Motor..............................................................................................................43

2
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.........................................................................................................................51
Tray 4th Paper Feed Unit LED........................................................................................................52
LCT Exit LED..................................................................................................................................53
Tray 5th Paper Feed Unit LED/ Tray 6th Paper Feed Unit LED......................................................54
Adjustments........................................................................................................................................57
Side Registration Adjustment..........................................................................................................57
Adjusting Image Position Sensor Strength and Side-To-Side Registration.....................................57
Double Feed Problem With the LCT...............................................................................................59

1.Overview and Components
3
1.Overview and Components
Basic Specifications
Items
Specification
Power consumption
210 W (Power supplied from the main unit)
Dimensions (W × D ×
H)
540 × 730 × 1,000 mm (21.3 × 28.8 × 39.4 inches) (Except protruding
parts)
Weight
106 kg (233.7 lb.) or less

1.Overview and Components
4
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–
79.9 lb. Cover)
Paper Weight 1–Paper Weight 5
Select the paper size using the paper size
selector:
A4 LEF, A5 LEF/SEF, B5 JIS LEF, 81/2 × 11
LEF, 51/2 × 81/2 LEF/SEF
1,000 sheets
Translucent paper
A4 LEF, B5 JIS LEF
*1
Label paper*2
52.3–216.0 g/m2 (14.0 lb. Bond–
79.9 lb. Cover)
Paper Weight 1–Paper Weight 5
A4 LEF, 81/2 × 11 LEF
*1
Transparencies
A4 LEF, 81/2 × 11 LEF
*1
Tab stock*3
52.3–216.0 g/m2 (14.0 lb. Bond–
79.9 lb. Cover)
Paper Weight 1–Paper Weight 5
A4 LEF, 81/2 × 11 LEF
*1
*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.
*2 You can load paper into Tray 5 only.
*3 The tab sheet holder is required.
LCT (Tray 6)
Paper Type and Weight
Paper Size
Paper
Capacity
52.3–163.0 g/m2 (14.0 lb. Bond–
60.0 lb. Cover)
Paper Weight 1–Paper Weight 4
Mainly Europe and Asia:
A4 LEF
Mainly North America:
81/2 × 11 LEF
2,550 sheets
52.3–163.0 g/m2 (14.0 lb. Bond–
60.0 lb. Cover)
Paper Weight 1–Paper Weight 4
Mainly Europe and Asia:
A5 LEF/SEF, B5 JIS LEF, 81/2 × 11 LEF,
51/2 × 81/2 LEF/SEF
Mainly North America:
A4 LEF, A5 LEF/SEF, B5 JIS LEF, 51/2 ×
81/2 LEF/SEF
2,550 sheets
Translucent paper
A4 LEF, B5 JIS LEF
*1
Transparencies
A4 LEF, 81/2 × 11 LEF
*1

1.Overview and Components
5
*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.

1.Overview and Components
6
Electrical Component and Drive Layout
No.
Name
No.
Name
1
Exit Sensor
16
Tray 5th Paper Height Sensor 3
2
Release HP Sensor
17
Tray 5th Paper Height Sensor 4
3
Tray 5th Transport Sensor
18
Tray 6th Paper Height Sensor 1
4
Relay Sensor
19
Tray 6th Paper Height Sensor 2
5
Tray 4th Transport Sensor
20
Tray 6th Paper Size Switch
6
LCT Exit Separation Motor
21
Tray 6th Paper Height Sensor 3
7
LCT Cooling Fan 2
22
Tray 6th Paper Height Sensor 4
8
Tray 4th Paper Height Sensor 1
23
LCT Cooling Fan 3
9
Tray 4th Paper Height Sensor 2
24
Tray 6th Transport Sensor
10
Tray 4th Paper Height Sensor 3
25
Door Safety Switch
11
Tray 4th Paper Height Sensor 4
26
Paper End Sensor
12
Tray 4th Paper Size Switch
27
Paper Feed Sensor
13
Tray 5th Paper Height Sensor 1
28
Lift Sensor
14
Tray 5th Paper Height Sensor 2
29
Pick-up Solenoid
15
Tray 5th Paper Size Switch

1.Overview and Components
7
No.
Name
No.
Name
1
Tray 6th Vertical Transport motor
9
Main Controller Board
2
Tray 5th Vertical Transport motor
10
Tray 5th Paper Feed Motor
3
Tray 5th Transport Motor
11
Tray 5th Lift Motor
4
Tray 4th Vertical Transport motor
12
Tray 6th Paper Feed Motor
5
LCT Exit Motor
13
Tray 6th Transport Motor
6
Tray 4th Transport Motor
14
LCT Cooling Fan 1
7
Tray 4th Paper Feed Motor
15
Tray 6th Lift Motor
8
Tray 4th Lift Motor
16
Anti-Condensation Heaters (Option)

1.Overview and Components
8
No.
Name
No.
Name
1
Tray 4th Paper Feed Unit LED
5
Tray 5th _LED1,2
2
Tray 4th _LED1,2
6
Tray 6th Paper Feed Unit
3
LCT Exit LED
7
Tray 6th _LED1,2
4
Tray 5th Paper Feed Unit LED
-
-

1.Overview and Components
9
Structural Overview
No.
Name
No.
Name
1
Tray 4th Transport Motor
14
Tray 6th Paper Feed Motor
2
Pick-up Solenoid
15
Tray Driving Belt
3
Lift Sensor
16
Pickup Roller
4
Tray 4th Paper Feed Motor
17
Separation Roller
5
Paper Feed Sensor
18
Paper Feed Roller

1.Overview and Components
10
No.
Name
No.
Name
6
Paper End Sensor
19
Grip Roller
7
LCT Exit Separation Motor
20
Tray 6th Transport Motor
8
Tray 5th Transport Motor
21
Tray 6th Vertical Transport Motor
9
Tray 5th Paper Feed Motor
22
Tray 5th Vertical Transport Motor
10
Paper Height Sensor 1
23
Release HP Sensor
11
Paper Height Sensor 2
24
LCT Exit Motor
12
Paper Height Sensor 3
25
Exit Sensor
13
Paper Height Sensor 4
26
Tray 4th Vertical Transport Motor

1.Overview and Components
11
Mechanism Overview
Mechanism
Description
Paper
Feed/Separation
RR system with non-contact magnet type maintenance-free torque limiter
Tray Set (Size)
Detection
Three switches detect paper size.
Paper size is fixed by the side fence. Trays 4 and 5 are determined by the
movement of the detector. Tray 6 can be changed in SP mode.
Tray Lifting/ Lowering
Tray is lifted by the lift motor and timing belt.
It is lowered using a free fall system.
Remaining Paper
Detection
Feeler and four photo interrupters detect remaining paper.
Paper End Detection
Detected by a reflex type sensor on the upper stay.
Stepping Motor Drive
The clutch is abolished; this is now controlled by a combination of pre-feed
and main feed based on imaging timing.
Dehumidification
Service option (AC, 15W×2, PTC heater)
Overloading
When the tray is overloaded, a bracket stops it from being set in.

1.Overview and Components
12
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.

1.Overview and Components
13
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, . The reverse pressure release mechanism releases reverse
pressure when the tray is opened, and applies pressure when the tray is set.
No.
Name
No.
Name
1
Paper Feed Roller
3
Separation Roller (with built-in torque limiter)
2
Pickup Roller
-
-
[A] The Cover of the Paper Feed Roller

1.Overview and Components
14
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.
Paper Feed/ Separation
After the transport motor turns on, the pick-up solenoid turns on. The paper feed roller is driven by the
paper feed motor. The pickup roller is also rotated by the relay gear, to pick up and feed the top sheet
of paper. Friction against the paper feed roller exceeding the torque of the separation roller causes both
the separation roller and paper feed roller to rotate.
When two or more sheets are fed, the separation roller rotates such that the second sheet is pushed
back. When the paper feed sensor (reflex type sensor) detects a sheet of paper, the pick-up solenoid
goes off, and then the pickup roller is raised to reduce the pressure on the paper.
Separation Roller Release
The separation roller is separated from the paper feed roller. Only when feeding paper, the reverse
release solenoid applies pressure to the separation roller. This mechanism has the following
advantages.
Pressure is applied to the separation roller only when paper is fed. This helps to prolong the life of
the roller.
Because the separation roller is released, it is easier to remove paper.

1.Overview and Components
15
No.
Name
No.
Name
1
Paper Feed Motor
4
Separation Roller
2
Transport Motor
5
Paper Feed Roller
3
Pickup Roller
-
-
No.
Name
No.
Name
1
Pick-up Solenoid
3
Pickup Roller
2
Paper Feed Roller
4
Separation Roller

1.Overview and Components
16
[A] The cover of the paper feed roller