Ricoh DU5040 Guida rapida
Decurl Unit DU5040
Machine Code: D3A4
Field Service Manual
November, 2014
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)
1
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 the products, which are heavy in weight, from toppling as a
result of people running into or leaning onto the products, which 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.
Do not remove them at your own judgment.
2
TABLE OF CONTENTS
Safety, Conventions, Trademarks......................................................................................................................1
Conventions.................................................................................................................................................... 1
Common Terms...................................................................................................................................... 1
Warnings, Cautions, Notes...........................................................................................................................2
Responsibilities of the Customer Engineer.................................................................................................... 2
Reference Material for Maintenance...................................................................................................2
The Aim of Anti-tip Components and Precautions....................................................................................... 2
1. Replacement and Adjustment
Decurl Unit and Electrical Components............................................................................................................ 5
Decurl Unit...................................................................................................................................................... 5
Removal Procedure............................................................................................................................... 5
Maintenance Position............................................................................................................................8
SP Settings After Installing a New Decurler Unit.................................................................................9
DDRB............................................................................................................................................................... 9
Decurl Unit Motor........................................................................................................................................ 10
Decurl Feed Motor.......................................................................................................................................11
Decurl Unit HP and Limit Sensor................................................................................................................. 12
Re-installation...................................................................................................................................... 14
3
4
1. Replacement and Adjustment
Decurl Unit and Electrical Components
Decurl Unit
Removal Procedure
• Most parts in the decurl unit have been precisely adjusted at the factory. Do not remove the parts
for which replacement procedures are not mentioned in this manual. Otherwise, adjustment for the
decurl unit requires special tools.
Only the following parts can be replaced without decurler unit adjustment.
• DDRB (Decurler Drive Board)
• Decurl Unit Motor
• Decurl Feed Motor
• Decurl Unit HP and Limit Sensor
1. Remove the I/F cover [A] of the main machine ( x1).
2. Remove the left cover [A] of the main machine ( x7).
[B]: Decurl Unit
5
3. Disconnect the stay [A] of the main machine ( x4).
4. Disconnect the DDRB bracket [A] ( x2).
1. Replacement and Adjustment
6
5. Remove the stay [A] with the DDRB bracket [B] ( x4, x3).
6. Remove the decurl unit [A] from the left side of the main machine ( x4, x3).
Decurl Unit and Electrical Components
7
7. Keep the decurl unit in the “Maintenance Position” as described below.
Maintenance Position
Lay the decurler unit [A] on temporary supports [C] as shown below. The entrance guide of the decurl
unit must not touch the floor or any object. Otherwise, the sheets on the entrance gate may be bent or
folded.
•Keep this position during maintenance.
• Place an object like a sheet of cardboard [B] on the supports so that the frame projection does not
damage the supports.
1. Replacement and Adjustment
8
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