Ricoh Shepherd-Lt Service manual

Technical Bulletin PAGE: 1/2
Model:
Shepherd-Lt
Date:
16-May-19
No.:
RM0D4001
Subject: Troubleshooting : Poor Print
Quality may occur when
parameter in print control software unmatched with current
ink type
Prepared by: D.Kobayashi
From:
Regional Sales Department, Global IP Sales Center
Classification: Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2 Tier 0.5
There is an information of troubleshooting regarding poor print quality by unmatched
between parameter in print control software and actual installed ink type.
Symptom
There are different image processing parameters for each ink type in Pro TF6250.
Poor print quality may be occurred by unmatched between actual installed ink type and
parameter in print control software.
If dot pattern or image alignment is not problem but banding or uneven density may
occur, then check the parameter in print control software whether it is matched with
actual installed ink type.
How to Check
・Check the Connection between PC and Machine
・Start print control software (if already started, close it once and then restart)
・Check the parameter below
Maintenance＞Voltage＞Printhead configuration
RICOH Pro UV Ink Bottle T7210
RICOH Pro UV Ink Bottle GP120
RICOH Pro UV Ink Bottle DG130

Technical Bulletin PAGE: 2/2
Model:
Shepherd-Lt
Date:
16-May-19
No.:
RM0D4001
Note
If any prints start before check above the parameter, then the parameter will be changed
to , as the result you will not be able to check the parameter.
At that time, you can check by restart print control software and should check this
parameter first.
Solution
If unmatched parameter is found, reinstall print control software.
・Close the print control software
・Uninstall the print control software
・Reinstall the print control software with select correct ink type

Technical Bulletin PAGE: 1/5
Model: Shephered－Lt Date: 20-May-19 No.: RM0D4002
subject: Field Service Manual Correction Installation Prepared by: D.Kobayashi
From: Regional Sales Department, Global IP Sales Center
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2 Tier 0.5
Service manual correction
Please apply the following corrections to your Pro TF6250 field service manual, in section:
2. Installation>Main Machine Installation>Installation Procedure>Unpacking
1. Remove all the screws that fixes the front side board [A], from the top and side boards.
2. Remove the front side board [A].
Note
Rear cover removal is not needed.
3. Remove the four accessory boxes and test print paper from the wooden box.
4. Remove the bolt [A] on the front crossbar

Technical Bulletin PAGE: 2/5
Model: Shephered－Lt Date: 20-May-19 No.: RM0D4002
Front view of palette
5.Remove the cross bar[A] in front
A
A
A
A
A
A

Technical Bulletin PAGE: 3/5
Model: Shephered－Lt Date: 20-May-19 No.: RM0D4002
6. Pull out while lifting the vertical sleepers[A]
]
7.Pull out the fixing bracket[A]
A
B
A
B
B
A
A
A
A
A
A

Technical Bulletin PAGE: 4/5
Model: Shephered－Lt Date: 20-May-19 No.: RM0D4002
8. Open the silver colored heat-shielding sheet, as shown below.
Note
The whole machine is covered with heat-shielding sheet. Therefore, you need to open the
sheet, so that the fork of the fork lift can access the forklift insertion brackets.
9. Insert the forks of the forklift into the forklift insertion brackets [B] at the bottom of the
machine [A].

Technical Bulletin PAGE: 5/5
Model: Shephered－Lt Date: 20-May-19 No.: RM0D4002
Note
Make sure to open the heat-shielding sheet in step 3 before inserting the forks under the
table.
10. Lift the machine (1436kg, 3165.9lb.) with the forklift, and take it out from the wooden
box.
Important
・When installing the machine, the inclination angle of machine shall be 3 degrees or less.
11. Pull out the fixing bracket on back side[A] if it isremaining with forklift insertionbrackets
on back side.
Refer from step 10 of the service manual for the subsequent steps.

Technical Bulletin PAGE: 1/2
Model:
Shepherd-Lt
Date:
27-May-19
No.:
RM0D4003
Subject: Troubleshooting : Carriage too low error occur
Prepared by: D.Kobayashi
From: Regional Sales Department, Global IP Sales Center
Classification: Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2 Tier 0.5
Symptom
Error Code 6 “Carriage height is too low” error may occur when operating Motion Test
menu on Print Control software.
This error may occur when operate Motion Test as below.
・Select Cleaning Lifter, then click X+ with wiper up then click X- with wiper down .
After these operations, as result may occur “Carriage height is too low”error.
And you may not be able to move carriage any more due to this error.

Technical Bulletin PAGE: 2/2
Model:
Shepherd-Lt
Date:
27-May-19
No.:
RM0D4003
Cause
Software bug
Solution
Perform “Reset Origin” or Restart Print Control software.
This bug will be resolved in the next version software.
Refer to the release note for detail.

Technical Bulletin PAGE: 1/4
Model:
Shepherd-Lt
Date:
28-May-19
No.:
RM0D4004
subject: Field Service Manual Correction Installation
Prepared by:
D.Kobayashi
From: Regional Sales Department, Global IP Sales Center
Classification: Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2 Tier 0.5
Service manual correction
Please apply the following corrections to your Pro T7210 and Pro TF6250 field service
manual, in section:
2. Installation>Main Machine Installation>Installation Procedure>Print Head Front
and Back Position Adjustment
Additional step in red for Step 3-3 and 4-3
Step 3-3
Rotate the adjustment screw [B] for the print head [A] (for the cyan nozzles) of the second
row to correct the displacement.
・If the line on the left side is lower than the line on the right side: The print head is
displaced towards the front. Rotate the screw [B] clockwise to correct the displacement.
・If the line on the left side is upper than the line on the right side: The print head is
displaced towards the rear. Rotate the screw [B] counter-clockwise to correct the
displacement.

Technical Bulletin PAGE: 2/4
Model:
Shepherd-Lt
Date:
28-May-19
No.:
RM0D4004
After the adjustment, print the test pattern and check the two dotted lines. Perform the
adjustment until the two dotted lines become overlapped and deviation amount become
within the standard value.
・Check whether the screw[C] which is rear side of Print head mount [D] is loose or not.
If it is loose, then tighten the screw [C] until the tip of the screw contacts the print head
mount [D].
When tip does not contact the print head mount [D], at this time you can tighten the screw
lightly, if you cannot tighten the screw lightly then you don’t need to tighten it any more.
Especially when rotate the screw [B] counter-clockwise, it may need to tighten the screw
[C] a little until the tip of the screw contact the print head mount [D].
When tightening the screw [C], it is not necessary to tighten it too hard, it is just contact
to the print head mount [D].
・After the adjustment, print the test pattern and check the two dotted lines.
If two dotted lines do not be overlapped, thenrotate the screw [B] clockwise little bit more.
Perform the adjustment until the two dotted lines become overlapped and deviation
amount become within the standard value.
Step 4-3
Rotate the adjustment screw [B] for the print head [A] (for the yellow nozzles) of the first
row to
correct the displacement.
・If the yellowline is lower than the cyan line:The print head is displaced towards thefront.

Technical Bulletin PAGE: 3/4
Model:
Shepherd-Lt
Date:
28-May-19
No.:
RM0D4004
Rotate the screw [B] clockwise to correct the displacement.
・If the yellow line is upper than the cyan line:The print head is displacedtowards the rear.
Rotate the screw [B] counter-clockwise to correct the displacement.
・After the adjustment, print the test pattern and check the two dotted lines. Perform the
adjustment until the two dotted lines become overlapped and deviation amount become
within the standard value.
・Check whether the screw[C] which is rear side of Print head mount [D] is loose or not.
If it is loose, then tighten the screw [C] until the tip of the screw contacts the print head
mount [D].
When tip does not contact the print head mount [D], at this time you can tighten the screw
lightly, if you cannot tighten the screw lightly then you don’t need to tighten it any more.
Especially when rotate the screw [B] counter-clockwise, it may need to tighten the screw
[C] a little until the tip of the screw contact the print head mount [D].

Technical Bulletin PAGE: 4/4
Model:
Shepherd-Lt
Date:
28-May-19
No.:
RM0D4004
When tightening the screw [C], it is not necessary to tighten it too hard, it is just contact
to the print head mount [D].
・After the adjustment, print the test pattern and check the two dotted lines.
If two dotted lines do not be overlapped, then rotate the screw [B] clockwise little bit more.
Perform the adjustment until the two dotted lines become overlapped and deviation
amount become within the standard value.

Technical Bulletin PAGE: 1/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
subject: Field Service Manual Correction Installation Prepared by: Y.Kurohashi
D.Kobayashi
From:
Regional Sales Department, Global IP Sales Center
Classification: Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2 Tier 0.5
Service manual correction
Please apply the following corrections to your Pro TF6250 field service manual, in section:
2. Installation>Main Machine Installation>Installation Procedure>Unpacking
Descriptions were added in red to Step12.
12. Peel off the protection films [A] from the X-axis guide rails and Y-axis.
When peeling off the protection films, be careful not to adhere the grease to the X-axis and Y-
axis.
2. Installation>Main Machine Installation>Installation Procedure> Installing the
Proximity Sensors
Note is added between step 7 and step 8.
7. Connect the relay cables to the proximity sensor on the left side of gantry in the same way.

Technical Bulletin PAGE: 2/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
Perform from step 8 after power on.
8. Adjust the light receiving amount.
Following steps are available after turning on the power.
1. Check that the light level indication lamp turns on.
If all 5 lamps [A] turn on, installing procedure of the sensors are finished.
If even one lamp does NOT turn on, adjust the level by following step 8-2.
2. Loosen the following two screws, and then adjust the sensor position until all light level
indication lamps turn on.
After the adjustment, tighten the screws again.

Technical Bulletin PAGE: 3/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
Tighten each screw temporarily at first, then tightening the screws while checking the
5 lamps turning on.

Technical Bulletin PAGE: 4/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
2. Installation>Main Machine Installation>Installation Procedure> Removing the
Shipping Material from the Carriage
Important information is added to step 8
8. Connect the GND wire bundled together with USB cable to PC's GND.
Connect to any of the screws shown in red circle.
USB error may be caused by the electrical noise when the vacuum fan working, if GND wire is not
connected.
When Interlocking system is not used, connect the Interlock switch connector.
(Refer to “Installation Example of Safety Fences”)

Technical Bulletin PAGE: 5/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
2. Installation>Main Machine Installation>Installation Procedure> Resetting the
Negative Pressure Value to Zero
Descriptions were corrected in red and deleted in strikethrough.
2. Disconnect the harnesses tubes [A] from rear of the negative pressure operation panels [B].

Technical Bulletin PAGE: 6/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
2. Installation>Main Machine Installation>Installation Procedure>Checking the Table
Surface Parallel
Step1 to Step3 are deleted because loopback connector is not bundled.
Checking the Table Surface Parallel
This section describes how to check the table surface parallel, and how to perform the adjustment.
The table surface parallel is checked by measuring the gap between the carriage and table surface at
72 points. When the measured results are not within a prescribed standard range, adjustment is
required.
Make sure that you have the following tools for checking the table surface parallel.
No.
Description
Q’ty
[A]
KEYENCE Sensor head (IL-S025)
1
[B]
KEYENCE Amplifier unit (IL-1000)
1
[C]
KEYENCE Sensor head cable (OP-87058)
1
[D]
KEYENCE power supply AC to DC (KZ-U3) *1
1
[E]
Power cables with plug
1
*1 Available as common item
1. Open the maintenance station rear cover [A].

Technical Bulletin PAGE: 7/17
Model: Shepherd-Lt
Date:
14-Jun-19 No.: RM0D4005
2. Disconnect the cable [B] from the motor driver [A] for X-axis drive motor.
3. Attach the loopback connector [A] provided with the machine, and then close the maintenance
station rear cover.
This enables all the proximity sensors.