Ricoh BY5020 Quick start guide

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.

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. Replacement and Adjustment ............................................................................................................ 3
Common Procedures.............................................................................................................................. 3
Opening the Bypass Tray ................................................................................................................... 3
Covers................................................................................................................................................. 3
Feed Tray............................................................................................................................................ 6
Motors..................................................................................................................................................... 9
Paper Feed Motor, Paper Transport Motor ........................................................................................ 9
Lift Motor ........................................................................................................................................... 10
Cooling Fan for Transport Motor ...................................................................................................... 11
Cooling Fan for Paper Feed Motor................................................................................................... 12
Relay Motor....................................................................................................................................... 12
Sensors................................................................................................................................................. 15
Paper 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
Electrical Components...................................................................................................................... 28
Mechanisms.......................................................................................................................................... 31
Tray Lift ............................................................................................................................................. 31
Paper Feed ....................................................................................................................................... 32
Paper Size Detection........................................................................................................................ 33

2

1.Replacement and Adjustment
3
1. Replacement and Adjustment
Common Procedures
Opening the Bypass Tray
This Multi-Bypass Tray can be installed on the vacuum feed LCIT RT5120.
The procedures in this manual apply to 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 screw cover.

1.Replacement and Adjustment
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.

1.Replacement and Adjustment
5
Rear Cover
1. Disconnect 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

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)

1.Replacement and Adjustment
7
2. Disconnect the ground wire and open the clamps .
3. Disconnect the harnesses.
4. At the front, disconnect hinge 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

1.Replacement and Adjustment
8

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. (Rear Cover)
2. Remove the paper feed motor [A].
3. Remove the transport motor [A].

1.Replacement and Adjustment
10
Lift Motor
1. Remove the rear cover (Rear Cover)
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.

1.Replacement and Adjustment
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.

1.Replacement and 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).

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.

1.Replacement and 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.

1.Replacement and Adjustment
15
Sensors
Paper Feed Sensor
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, 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.

1.Replacement and Adjustment
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3. Release tab [1] and remove 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.