Ricoh LCIT RT5100 Field Service Manual
Vacuum Feed LCIT RT5100
Machine Code: D777-17
Field Service Manual
V1.1
March 2015
Revision History
This is the Revision History for the Vacuum Feed LCIT RT5100 service manual.
Version Date Changes
Text, Illustrations. In procedures the order of the text and
illustrations has been reversed. For each step, the text description
Ver. 1.1 31 Mar 2015
(action) is followed by the relevant illustration. The callouts [A], [B],
[C] in text refer to the illustration below, not above.
PSU cooling fans. The naming of PSU cooling fan 1, and PSU
cooling fan 2 has been corrected.
1
Safety, Conventions, Trademarks
Conventions
Common Terms
This is a list of symbols and abbreviations used in this manual.
Symbol What it means
Screw
Connector
E-ring
Clip ring
Harness clamp
FFC Flexible Film Cable
JG Junction Gate
LE Leading Edge of paper
LEF Long Edge Feed
SEF Short Edge Feed
TE Trailing Edge of paper
[A] Short Edge Feed (SEF)
[B] Long Edge Feed (LEF)
2
Warnings, Cautions, Notes
In this manual, the following important symbols and notations are used.
• A Warning indicates a potentially hazardous situation. Failure to obey a Warning could result in
death or serious injury.
• A Caution indicates a potentially hazardous situation. Failure to obey a Caution could result in
minor or moderate injury or damage to the machine or other property.
• Obey these guidelines to avoid problems such as misfeeds, damage to originals, loss of valuable
data and to prevent damage to the machine.
• This information provides tips and advice about how to best service the machine.
Responsibilities of the Customer Engineer
Reference Material for Maintenance
• Maintenance shall be done using the special tools and procedures prescribed for maintenance of
the machine described in the reference materials (service manuals, technical bulletins, operating
instructions, and safety guidelines for customer engineers).
• Use only consumable supplies and replacement parts designed for use of the machine.
The Aim of Anti-tip Components and Precautions
The anti-tip components are necessary for meeting the requirements of IEC60950-1, the international
standard for safety.
The aim of these components is to prevent heavy products as a result of people running into or leaning
onto the products. This can lead to serious accidents such as persons becoming trapped under the
product. (U.S.: UL60950-1, Europe: EN60950-1)
Therefore, removal of such components must always be with the consent of the customer. Never remove
them without the customer's consent.
3
TABLE OF CONTENTS
Revision History...................................................................................................................................................1
Safety, Conventions, Trademarks......................................................................................................................2
Conventions.................................................................................................................................................... 2
Common Terms...................................................................................................................................... 2
Warnings, Cautions, Notes...........................................................................................................................3
Responsibilities of the Customer Engineer.................................................................................................... 3
Reference Material for Maintenance...................................................................................................3
The Aim of Anti-tip Components and Precautions....................................................................................... 3
1. Replacement and Adjustment
Exterior Covers....................................................................................................................................................7
Right Upper Cover......................................................................................................................................... 7
Right Lower Cover.......................................................................................................................................... 7
Rear Right Cover............................................................................................................................................ 8
Rear Left Cover............................................................................................................................................... 8
Left Top Cover.................................................................................................................................................9
Center Top Cover........................................................................................................................................ 10
Right Top Cover........................................................................................................................................... 10
Front Corner Cover......................................................................................................................................11
Rear Corner Cover...................................................................................................................................... 12
Front Door.....................................................................................................................................................13
Upper Inner Cover.......................................................................................................................................13
Lower Inner Cover....................................................................................................................................... 15
Tray Front Cover (Tray 1, 2).......................................................................................................................15
Paper Feed Unit (Trays 1, 2)...........................................................................................................................16
Paper Tray.................................................................................................................................................... 16
Paper Feed Belt Unit.................................................................................................................................... 16
Paper Feed Belt............................................................................................................................................19
Paper End Sensor.........................................................................................................................................22
Paper Feed Sensor.......................................................................................................................................23
Transport Roller Unit.................................................................................................................................... 25
Float/Separation Fan Duct.........................................................................................................................26
Float Fan....................................................................................................................................................... 27
Re-installation...................................................................................................................................... 27
4
Separation Fan.............................................................................................................................................27
Re-installation...................................................................................................................................... 28
Float Fan Shutter Solenoid.......................................................................................................................... 28
Paper Upper Limit Sensor 1, 2....................................................................................................................28
Main Paper Remaining Sensor................................................................................................................... 29
Sub Paper Remaining Sensor......................................................................................................................30
Paper Lower Limit Sensor............................................................................................................................ 31
LCIT Paper Length Sensor 1 and 2.............................................................................................................32
Tray Upper Limit Sensor.............................................................................................................................. 33
Side Fences (Front, Rear)............................................................................................................................ 35
Common Procedure for Removing the Side Fences (Front, Rear)...................................................35
Side Fence (Front)............................................................................................................................... 38
Side Fence (Rear)................................................................................................................................41
Paper Size Sensors...................................................................................................................................... 44
Side Fan........................................................................................................................................................45
Side Fan Shutter Solenoid...........................................................................................................................47
Rear Side...........................................................................................................................................................48
Main Board.................................................................................................................................................. 48
Tray 1 Pickup Belt Motor.............................................................................................................................48
Re-installation...................................................................................................................................... 49
Tray 1 Grip Motor....................................................................................................................................... 50
Re-installation...................................................................................................................................... 51
Tray 2 Pickup Belt Motor.............................................................................................................................51
Tray 2 Grip Motor....................................................................................................................................... 52
Suction Fan 1, 2 (Tray 1, 2)....................................................................................................................... 53
LCIT Lift Motor (Tray 1, 2)...........................................................................................................................54
Bypass Transport Motor 2...........................................................................................................................55
Re-installation...................................................................................................................................... 56
Transport Motor Cooling Fan..................................................................................................................... 57
Re-installation...................................................................................................................................... 58
Vertical Feed Unit.............................................................................................................................................59
Vertical Feed Unit.........................................................................................................................................59
Re-installation...................................................................................................................................... 62
5
Tray 1 Vertical Transport Motor 1..............................................................................................................63
Tray 1 Vertical Transport Motor 2..............................................................................................................63
Tray 1 Transport Sensor.............................................................................................................................. 64
Tray 1 Vertical Transport Sensor................................................................................................................ 66
Tray 2 Vertical Transport Motor 1..............................................................................................................67
Tray 2 Vertical Transport Motor 2..............................................................................................................68
Re-installation...................................................................................................................................... 68
Tray 2 Vertical Transport Sensor................................................................................................................ 69
Tray 2 Transport Sensor.............................................................................................................................. 70
Vertical Transport Exit Motor...................................................................................................................... 72
Re-installation...................................................................................................................................... 73
Bypass Transport Sensor 2..........................................................................................................................74
LCIT Exit Motor.............................................................................................................................................74
LCIT Exit Roller Contact Motor....................................................................................................................75
Re-installation...................................................................................................................................... 76
LCIT Exit Sensor............................................................................................................................................76
LCIT Exit Roller Contact Sensor...................................................................................................................77
Vertical Transport Unit Cooling Fan........................................................................................................... 78
Vertical Transport Unit Cooling Fan Re-installation..........................................................................79
PSU Box............................................................................................................................................................ 81
PSU box........................................................................................................................................................81
PSU1, 2........................................................................................................................................................ 81
PSU Cooling Fan 1, 2................................................................................................................................. 83
Interlock Switch............................................................................................................................................ 84
AC Drive Board............................................................................................................................................85
Fuses on the PSU and AC drive board that can be replaced..........................................................86
6
1. Replacement and Adjustment
Exterior Covers
Right Upper Cover
1. Open the paper tray 1 slightly.
2. Right upper cover [A]( x4)
Right Lower Cover
1. Open the paper trays 1 and 2 slightly.
2. Right lower cover [A] ( x5)
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1. Replacement and Adjustment
Rear Right Cover
1. Lift the rear right cover [A] slightly and remove it ( x6).
• When attaching the rear right cover, hang it on the hook.
Rear Left Cover
1. Rear right cover (page 8 "Rear Right Cover")
2. Lift the rear left cover [A] slightly and remove it ( x10).
8
• When attaching the rear left cover, hang it on the hook.
Exterior Covers
Left Top Cover
1. Cut the cushion at the position [A] along the groove.
2. Remove the screws on the left top cover ( x2).
9
1. Replacement and Adjustment
3. Slide the left top cover [A] in the direction of the blue arrow and remove it.
Center Top Cover
1. Left top cover (page 9 "Left Top Cover")
2. Slide the center top cover [A] in the direction of the blue arrow and remove it ( x3).
Right Top Cover
1. Left top cover (page 9 "Left Top Cover")
2. Center top cover (page 10 "Center Top Cover")
3. Slide the right top cover [A] in the direction of the arrow and remove it ( x3).
10
Front Corner Cover
1. Left top cover (page 9 "Left Top Cover")
2. Center top cover (page 10 "Center Top Cover")
Exterior Covers
3. Right top cover (page 10 "Right Top Cover")
4. Remove the screws at the top of the front corner ( x3).
5. Remove the screws at the bottom of the front corner [A] ( x2).
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1. Replacement and Adjustment
6. Lift the front corner cover [A] and remove it.
Rear Corner Cover
1. Left top cover (page 9 "Left Top Cover")
2. Center top cover (page 10 "Center Top Cover")
3. Right top cover (page 10 "Right Top Cover")
4. Remove the rear right and rear left covers (page 8 "Rear Right Cover",page 8 "Rear Left Cover").
5. Rear corner cover [A]( x2)
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Front Door
1. Left top cover (page 9 "Left Top Cover")
2. Center top cover (page 10 "Center Top Cover")
Exterior Covers
3. Right top cover (page 10 "Right Top Cover")
4. Front corner cover (page 11 "Front Corner Cover")
5. Lift the front door [A] and remove it.
Upper Inner Cover
1. Open the front door.
2. Remove the two levers [A] ( x1 each).
3. Knob [B] ( x1)
13
1. Replacement and Adjustment
4. Raise the paper jam U9 clearing plate and remove the knob [A] ( x2).
14
5. Three knobs [A] ( x1 each)
6. Upper inner cover [B] ( x5)
Lower Inner Cover
1. Open the front door.
2. Lower inner cover [A] ( x3)
Exterior Covers
Tray Front Cover (Tray 1, 2)
• The replacement procedure for tray front cover of tray 1 and 2 are the same. The following is the
procedure for replacing the tray front cover of tray 1.
1. Pull out the paper tray.
2. Lift the tray front cover [A] and remove it ( x4).
• The lower screw [B] is a shoulder screw.
15
1. Replacement and Adjustment
Paper Feed Unit (Trays 1, 2)
• Do not pull out all trays in the vacuum feed LCIT RT5100 (when it is not linked to the main unit)
because it could fall over.
• Parts in paper trays 1 and 2 can be removed using the same procedure. The following are the
procedures for replacing the parts in tray 1.
Paper Tray
1. Tray front cover (page 15 "Tray Front Cover (Tray 1, 2)")
2. Paper tray ( x4)
• The tray weighs about 30 kg. It is heavy and requires careful handling by two persons.
Paper Feed Belt Unit
[A]: Tray 1 paper feed belt unit
[B]: Tray 2 paper feed belt unit
16
1. Open the paper tray.
2. Remove the lock of the paper feed belt unit ( x2).
Paper Feed Unit (Trays 1, 2)
3. Hold the knob of the paper feed belt unit [A] and close the paper tray halfway.
4. Pull out the paper feed belt unit [A] and the paper tray together.
17
1. Replacement and Adjustment
• The paper feed belt unit must be pulled out horizontally relative to the paper tray, to ensure that the
paper feed belt is not damaged by getting caught in the side fences or other parts.
• To prevent damaging the paper feed belt when you return the paper feed belt unit to its original
position, align the right and left guides [A] with the rail [B] on the paper tray side and raise them
slightly before replacing the unit.
18
Paper Feed Unit (Trays 1, 2)
Paper Feed Belt
1. Paper feed belt unit (page 16 "Paper Feed Belt Unit")
2. Shaft [A]
3. Guide plate [A] ( x4)
19
1. Replacement and Adjustment
4. Pull out the chamber [A] ( x2).
5. Bracket [A] ( x2)
20
6. Remove the belt shaft [A] and the paper feed belt [B].
Paper Feed Unit (Trays 1, 2)
• During installation, turn the shaft to correct belt deflection before installing the chamber.
• When all parts have been assembled, turn the shaft once more to check for deflection, resistance
and other abnormalities before replacing the paper tray.
21
1. Replacement and Adjustment
Paper End Sensor
1. Paper feed belt unit (page 16 "Paper Feed Belt Unit")
2. Rear harness ( x3, x1)
22
3. Center guide plate [A] ( x2)
4. Paper end sensor [A] ( x2, x1, x1)
Paper Feed Unit (Trays 1, 2)
Paper Feed Sensor
• The replacement procedures for the paper feed sensor of the tray 1 and 2 are the same. The
following is the procedure for replacing the paper feed sensor of tray 1.
1. Pull out the paper tray.
2. Remove the top cover [A] of the transport roller unit ( x2).
23
1. Replacement and Adjustment
3. Paper feed sensor bracket [A] ( x2)
24
4. Paper feed sensor [A] ( x1, x1)
Transport Roller Unit
1. Open the front door [A] and pull out the paper tray [B].
2. Tray left top cover [A] ( x4)
Paper Feed Unit (Trays 1, 2)
3. Disconnect relay connector, and then remove transport roller unit [A] ( x1, x4)
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