Ricoh Shepherd-P1 Service manual

Technical Bulletin PAGE: 1/1
Model:
Shepherd-P1
Date:
1-Jun-18
No.:
RJ093001
At machine installation:
Make sure not to curve the optical fiber cable sharply shown below. If you do it, the
fiber cable will be broken.
[2.Installation] [Installing the Cable Bearer (Right)]
If the cable is broken, following errors may occur.
118: Setting up optical fiber cable communication has failed.
119: Setting up channel mapping has failed.
Detail
DO NOT curve the optical fiber cable within 65mm radius.
65mm
65mm
Subject: Caution for routing optical fiber cable
Prepared by:
Y.Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2

Technical Bulletin PAGE: 1/1
Model:
Shepherd-P1
Date:
10-Sep-18
No.:
RJ093002
Subject:
Ticking sound from negative pressure valve
Prepared by:
Y.Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety Other ( ) Tier 2
At machine installation:
Please explain the intermittent ticking sound from negative pressure valve is normal work
of the machine.
To keep negative pressure at the print heads all times, the electrical valves open and close
intermittently.
Therefore, there is the sound not only at printing but also at standby-mode.

Technical Bulletin PAGE: 1/5
Model:
Shepherd-P1
Date:
16-Oct-18
No.:
RJ093003
Subject: Changed the installation procedure for
installing the proximity sensors. Prepared by: Y.Kurohashi
From:
1st System Business Promotion Section, System
Business Department
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
Service Manual Revision
[2. Installation] - [Installing the Proximity Sensors]
Changed the installation procedure for installing the proximity sensors.
１） Proximity Sensors have been changed as Accessories.
２） According to 1), installing procedure has been changed.
３） It requires Adjustment of light receiving amount after assembling the sensors.
The items in italics were corrected or added.
Procedure
Additional accessories
[For Left Rear], [For Left Front], [For Right Rear], [For Right Front]
Right Side(Receiver)
：
: Black Cable
Left Side(Emitter)
: Gray Cable

Technical Bulletin PAGE: 2/5
Model:
Shepherd-P1
Date:
16-Oct-18
No.:
RJ093003
Installing the Proximity Sensors
1. Check that the relay cables for assembling sensors are taped at 4 corners of Gantry
unit.
LR[A], RF[B], LF[C], RF[D]
A
B
C
D

Technical Bulletin PAGE: 3/5
Model:
Shepherd-P1
Date:
16-Oct-18
No.:
RJ093003
2. Remove twelve screws on the right side of the gantry on the right side of the gantry.
The six screws [A] are used for installing the proximity sensors in step 3, and the six
screws [B] are used for attaching the proximity sensor covers to the proximity sensors
in step 5.
3. Install the proximity sensors [A] and [B] as shown below.
Use the screws removed in step 2.
Right Side (Emitter)
Black Cable

Technical Bulletin PAGE: 4/5
Model:
Shepherd-P1
Date:
16-Oct-18
No.:
RJ093003
4. Install the two proximity sensors and proximity sensor cover (left) on the left side of the
gantry in the same way.
5. Connecting the cable of sensor with relay cable. [A]
Adjust the length of the cable by Inserting the excess length of the cable into the hole.
[B]
6. Adjust the light receiving amount.
Following steps are available after turning power on.
6-1. Check that the light level indication lamp turns green.
-If all 5 lamps turn on, installing procedure of the sensors are finished.
-If even one lamp does NOT turn on, adjust the level by following 7-2 step.
Lighting
Lighting-off
Target
Light level
Indication Lump

Technical Bulletin PAGE: 5/5
Model:
Shepherd-P1
Date:
16-Oct-18
No.:
RJ093003
6-2. Loosen the following two screws, then adjust the sensor position until all Light
level indication lamps turn on. After the adjustment, tighten the screws again.
Tighten each screw temporarily at first, then tightening the screws while checking the 5
lamps turning on.
7. Install the proximity sensor cover (right) [A] on the proximity sensors.
Use the five screws attached to the screw holes on the proximity sensors.
8. Fix the proximity sensor covers to the proximity sensors with the six screws removed
in step 2.

Technical Bulletin PAGE: 1/2
Model:
Shepherd-P1
Date:
31-Oct-18
No.:
RJ093004
Subject: Release information of the patch for added
Fine mode and Super Fine mode Prepared by: Y.Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
Outline:
Print Mode Ver.1.0.0.0 has been released for added Fine mode and Super Fine mode.
By installing this software, Fine mode and Super Fine mode are available in following
print modes.
-4C-W_Fine
-4C-W_Super Fine
-4C_Fine
-4C_Super Fine
- W-4C_Fine
- W-4C_Super Fine
Additional print modes are available at Print Mode selection tab.

Technical Bulletin PAGE: 2/2
Model:
Shepherd-P1
Date:
31-Oct-18
No.:
RJ093004
These modes are useful to reduce banding image like below photo.
Note:
-If customer needs higher quality print than High Quality mode, use these modes.
-Fine mode is Bi-directional print. Super Fine mode is uni-directional print.
-Super Fine is lowest productivity print mode. (Abt. one fifth productivity of Standard
mode)
-These modes are still available after Print Control Software is
newly updated. Not necessary to re-install them at each update of Print Control
software.

Technical Bulletin PAGE: 1/2
Model:
Shepherd-P1
Date: 1
-Nov-18
No.:
RJ093005
Subject: [NA model only] Precaution when working
near the transformer unit Prepared by: Y.Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
Outline:
For NA model Only
There is a transformer unit at following position. The transformer converts the voltage
from 220V to 380V. Though transformer unit is covered with metal gauze illustrated in
red frame below, please observe following precautions when working near there.
Precaution
・Make sure to turn off main power switch and disconnect the power supply
cable from the machine before starting work.
・Move the carriage unit above left side ink receiver before turn off main SW.

Technical Bulletin PAGE: 2/2
Model:
Shepherd-P1
Date: 1
-Nov-18
No.:
RJ093005
Ink may drip from head surface by broken negative pressure in case the power is
not supplied long time.
・Do NOT touch the transformer cover because of following reason.
The cover may have high temperature by transformer heating.
The transformer may have residual electric charge.

Technical Bulletin PAGE: 1/2
Model:
Shepherd-P1
Date:
7-Nov-18
No.:
RJ093006
Subject: Unstable ink ejection without clogged
nozzles is occurred at 'Print Status' pattern. Prepared by: Y. Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
Ink ejection from print head is available but printing result is not stable. When printing 'Print
status' pattern, unstable image is printed like following photo.
Cause
Conduction failure between carriage board to print head. The conduction failure may have
caused less communication at printing data.
Solution
1. Disconnect and reconnect the cables and connectors on print head, head amplifier
board and carriage board.
2. Replace the head amplifier boards with new one.
3. Replace the carriage boards with new one.
Example

Technical Bulletin PAGE: 2/2
Model:
Shepherd-P1
Date:
7-Nov-18
No.:
RJ093006

Technical Bulletin PAGE: 1/4
Model:
Shepherd-P1
Date:
16-Nov-18
No.:
RJ093007
Subject: Check the main ink tank tube condition
Prepared by: Y.Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
At machine installation:
Outline
Make sure that main ink tank tube is located correct position before ink filling.
1. Whether the edge of the tube is placed lower position than ink end sensor.
2. Whether the ink supply tube is straight.
[2. Installation] [Filling the Ink Tanks with Ink]
Check procedure
1. Check the points from ink filling port after removing caps.
2. Straighten out the kink of tube, or cut it to the correct length, or replace it with
correct length one.
Pull the main ink tanks out if it is difficult to recognize visually.
The ink supply tube is
straight and its edge
is lower than ink end
sensor.
Ink end sensor

Technical Bulletin PAGE: 2/4
Model:
Shepherd-P1
Date:
16-Nov-18
No.:
RJ093007
Reason:
If ink tube is not correct position, the air will be supplied instead of ink or ink is not
supplied correctly. The air will be supplied instead of ink when ink surface is below the
end of ink supplying tube. When air is in the ink supplying tube, the air may cause
nozzle clogged or flowing inks into the air tube by negative pressure broken. The
following cases are not good.
No good cases
Case 1 Case 2
Case 3
The length of tube is
too short. And it is
located upper position
than ink end detection.
The edge of the
tube faces upward.
Air
Air

Technical Bulletin PAGE: 3/4
Model:
Shepherd-P1
Date:
16-Nov-18
No.:
RJ093007
Case 4
Solution for product line:
Air
The kink of tube is
disturbing
detection of ink
Ink end
detection
The end of tube touches the bottom of the bottle
because the length of tube is too long. As a result,
enough ink may not be supplied.
Buzzer fails to function.

Technical Bulletin PAGE: 4/4
Model:
Shepherd-P1
Date:
16-Nov-18
No.:
RJ093007
Ink tube will be covered with stainless steel pipe. Cut-in serial numbers of mass production
and new service parts number will be announced later.
:

Technical Bulletin PAGE: 1/2
Model:
Shepherd-P1
Date:
20-Nov-18
No.:
RJ093008
Subject: A little image shift in main scan direction are
occurred when bi-directional printing. Prepared by: Y. Kurohashi
From: 1st System Business Promotion Section, System
Business Department
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
A little image shift in main scan direction may occur like the photo below when bi-
directional printing at Print Control Software v.1.0.1.2.
<Sample image>
Bi-directional print
Uni-directional print
Main scan
Main scan

Technical Bulletin PAGE: 2/2
Model:
Shepherd-P1
Date:
20-Nov-18
No.:
RJ093008
Cause
Parameter setting of Bi-Dir Offset does not work correctly.
Temporary Solution
Print the data by uni-directional mode in following setting.
1. Use the print mode of uni-directional printing.
Note:
Refer Field Service manual [7. Detail Description] [Printing Variation].
2. Set the Printing Direction from Bi-Dir to Left.
Print Mode > Print Parameter > Direction
Note:
It requires to enter administrator mode to change the Print Mode setting.
Restore the setting when installing update program which fixes bug.
Permanent Solution
RCL will release update software in beginning of Dec.

Technical Bulletin PAGE: 1/1
Model:
Shepherd-P1
Date:
28-Dec-18
No.:
RJ093009
Subject: UV lamps’ emission power is too low, which
causes the ink not to cure. Prepared by: T.Ejima
From: PP CF/WF Section, CIP Product Quality Management
Department, Quality Assurance Center, Quality Management
Division
Classification: Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
UV lamps' emission power is too low, which causes the ink not to cure.
This problem has occurred repeatedly at two of our customer sites.
Cause
There is a bug in Interface Board's firmware. The bug is an interface sequence problem
between the Interface Board and the LED Module. (The Interface Board is a service part
which part number is J0935404.)
Solution
The vendor updated the firmware of the Interface Board by modifying the limit of time that
is used when waiting for a response after sending a command, which fixed the problem.
The improved Interface Board has been given the part number J0935405.
So please replace the current Inter Board(J0935404) with J0935405.
Interface Board
LED Module
Main Board
PC