Ricoh Leo-C2/P2 Service manual

Technical Bulletin PAGE: 1/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
RTB Reissue
The items in bold italics were corrected or added.
Revised Procedure for Replacing the Special Color Using the 5th
Station Replacement Kit Type S9
•When using the EFI color controller, EFI 5th Station Hardware Upgrade Kit Type S9 is
required to print in Special color.
•Although customers who purchase this optional kit can replace the toner color
themselves, a service technician has to fill the developer and initialize the settings at
the first installation.
Subject: Revised Procedure for Replacing the Special Color Prepared by: S. Katoh
From: Sales Strategy Section，1st CP Business Department
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

Technical Bulletin PAGE: 2/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
Accessories
No.
Description
Q'ty
1
Development Unit
1
2
5th Station Toner Cartridge Replacement Tool
1
3
Toner Supply Unit (Sub hopper)
1
4
Storage Case
1
5
Development plate
1
6
Toner Supply Unit Plate
1
7
TCRU Screw
2
8
Hex screwdriver
1
9
TCRU decal (for 5th Development Unit)
1
10
Color Identification Decal_ S:CLR (for Toner Supply Unit)
1
11
Color Identification Decal_ S:W (for Toner Supply Unit)
1
12
Color Identification Decal_ S:CLR (for PCDU)
1
13
Color Identification Decal_ S:W (for PCDU)
1
14
Handle Decal
2
15
Toner Collection Bottle for Tube Cleaning
1
16
Air Pump
1
17
Rubber cord
1

Technical Bulletin PAGE: 3/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
16
15
The Toner Collection Bottle for Tube
Cleaning is attached with two filters at
the bottom and can be easily
distinguished from the normal bottles.
16
17
The rubber cord was added to avoid
forgetting to insert the toner collection
bottle for tube cleaning with the
airpump.
There are two color
variations for the air
pump; pink and blue.

Technical Bulletin PAGE: 4/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
Attach the nozzle [B] to the air pump [A].
[A]
[B]
[A]
[B]
Connect the air pump [C] and toner collection bottle [D] with the loops [B] on both
ends of the rubber cord [A].
[A]
[B]
[A]
[B]
[C]
[D]
[B]

Technical Bulletin PAGE: 5/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
Installation
•The machine must be connected to a power source that is nearby and easily
accessible.
•Make sure that the main power switch and AC power switch are turned to OFF, and
that the power cord is disconnected before performing the following procedure.
Prepare developers as necessary. Make sure that you bring it along with you to the customer
site.
•Developer Clear
•Developer White
•Developer Neon Pink
•Developer Neon Yellow
•Developer Invisible Red
Color identification decals other than those for the white and clear colors must be supplied by
a service technician.
1. Turn the main power ON.
2. Log in as the machine administrator.
3. Access the Adjustment Settings for Operators menu.
4. Press [Machine: Maintenance] > [0516: Change Special Toner].
•Do not press [Set] yet. That is done in Step 7.
5. Open the toner bank door. Remove the special toner bottle currently being used.
•Pull out the toner bottle as it is. Unlike with CMYK bottles, you do not have to
open the bottle cap in the SP mode.
6. Attach the 5th station toner cartridge replacement tool [A] provided with this option, and
then close the toner bank door.

Technical Bulletin PAGE: 6/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
7. Press [Set].
•Tube cleaning is carried out automatically by executing this setting.
•After tube cleaning, color information about toner bottle will be set when you
attach a new toner bottle.
8. After cleaning is completed, press [Check] to close the message window.
9. Open the toner bank door. Remove the 5th station toner cartridge replacement tool.
A. Remove the sub-hopper cover [A].
B. If the Toner Collection Bottle for Tube Cleaning has been used and contains any toner,
shake it 5 or 6 times.

Technical Bulletin PAGE: 7/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
C. Hold the Toner Collection Bottle for Tube Cleaning in an upright position so that collected
toner, if any, gathers at the bottom, and then install the bottle.
D. Remove the hook [A], and disconnect the clip [B].
E. Disconnect the toner supply tube [A] from the sub-hopper and connect it to the air pump
[B].
Upright position
Keep the bottom of the bottle facing
down as you set the bottle.
[A]
[B]

Technical Bulletin PAGE: 8/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
F. Cover the tip of the toner supply tube with a piece of cloth [A] and grip it together with the
air pump.
[A]

Technical Bulletin PAGE: 9/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
G. Press in air 3 times by making 3 full strokes in about 3 seconds; one full stroke refers to
the action of pulling and pressing one time each, and 1 stroke should be made
within 1 second.
H. Remove the Toner Collection Bottle for Tube Cleaning.
I. Disconnect the toner supply tube from the air pump.
1 stroke within 1 second x3
NOTE:
If you take more than a
second to make one full
stroke, toner may not be
successfully ejected from
the toner supply tube.
Start
Pull
Press

Technical Bulletin PAGE: 10/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
J. Pull out the toner collection bottle until the black cap is fully exposed.
K. With the aperture of the toner supply tube [A] facing up, disconnect the air pump
[B] from the toner supply tube.
L. Remove the toner collection bottle.
10. Insert the new color toner bottle.
11. Turn OFF the main power of the main machine and the DFE.
12. Open both front doors.
[A]
[B]

Technical Bulletin PAGE: 11/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
13. Remove the sub-hopper cover [A].
14. Insert a sheet of paper [A] between the 5th station PCDU and the ITB unit to prevent
toner from spilling onto the belt.
The photo below shows the 3rd station PCDU as an example.
Step 13 was deleted and replaced with Step A.

Technical Bulletin PAGE: 12/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
15. Remove the PCDU (PCDU_99).
16. Attach a color identification decal [B] (provided with this option) to the PCDU that you
removed in the previous step [A].
Also attach a color identification decal [B] (provided with this option) to the PCDU that you
are going to install.
For example, if you are removing clear toner and installing white toner, attach the clear
toner decal to the PCDU that you are removing, and attach the white toner decal to the
PCDU that you are installing. In the example below, a decal for clear toner is attached.
•Decal (S:CLR) [A]: for clear toner
•Decal (S:W) [B]: for white toner

Technical Bulletin PAGE: 13/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
17. Put the removed PCDU on the development plate which is in the storage case, and then
cover it so that it is not exposed to light.
18. Remove the toner supply unit [A] with its tube.
19. Remove the hook [A], and disconnect the clip [B].
Step 19 was deleted and replaced with Step D.

Technical Bulletin PAGE: 14/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
20. Remove the tube and connect it to the stud [A] so that the toner is not spilled.
21. Attach a color identification decal [A] (provided with this option) to the toner supply unit
that you just removed.
Also, attach a color identification decal (provided with this option) to the toner supply unit
that you are going to install.
•Decal (S:CLR) [A]: for clear toner
•Decal (S:W) [B]: for white toner
22. Put the removed toner supply unit on the toner supply unit plate which is in the storage
case.

Technical Bulletin PAGE: 15/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
23. In order for the machine to identify the special color used, set the DIP Switch on the toner
supply unit that you are going to install.
From left to right: SW 1 to 4
The direction towards the SW number is OFF, and the direction away from the SW
number is ON (SW numbers are printed on the switch).
Toner
SW1
SW2
SW3
SW4
Clear
ON
ON
ON
ON
White
ON
ON
ON
OFF
Neon Yellow
ON
ON
OFF
ON
Neon Pink
ON
ON
OFF
OFF
Invisible Red
ON
OFF
ON
ON
Default (All Color)
OFF
OFF
OFF
OFF
24. Disconnect the tube from the stud, and connect it to the toner supply unit. Attach the clip
[A], and then secure the tube with the hook [B].

Technical Bulletin PAGE: 16/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
25. Attach the toner supply unit [A].
26. Attach the positioning mark decals (TCRU decal) [A] to the development unit provided
with this option.
These decals are to help the customer set the 5th station PCDU in place correctly.
27. Attach the handle decals as shown the photo below.

Technical Bulletin PAGE: 17/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
[A]: 20mm, [B]: 0 - 2mm, [C]: 0 - 2mm
28. Pull out the slide rail for the 5th station PCDU. Set the development unit [A] provided with
this option.
29. Remove the drum, PCU cleaning unit, and charger unit from the PCDU removed in Step
15. Install them on the development unit provided with this option.
•The 5th station PCDU is not secured with screws. This is to make it easier for the

Technical Bulletin PAGE: 18/18
Reissued: 23-Apr-18
Model: Leo-C2/P2 Date: 5-Mar-18 No.: RD0A5001
customer to replace it.
30. Attach the PCDU.
Refer to エラー! 参照元が見つかりません。.
31. Re-attach the sub-hopper cover with TCRU screws provided with this option ( x2).

Technical Bulletin PAGE: 1/2
Model: Leo-C2/P2
Date:
5-Mar-18
No.:
RD0A5002
Subject:
Troubleshooting procedure for 50 mm pitch banding
Prepared by:
S. Katoh
From: Sales Strategy Section, 1st CP Business Dep.
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
Banding in approximately 50mm pitch appears on the printouts, which is noticeable
especially in light halftone images.
CAUSE
Bug in the DEMS/DSC software
SOLUTION
Temporary Solution:
Do the procedure on the following page until the permanent solution becomes available.
Permanent Solution:
Modified software is scheduled for release in late April 2018.

Technical Bulletin PAGE: 2/2
Model: Leo-C2/P2
Date:
5-Mar-18
No.:
RD0A5002
Temporary Solution
Enter the SP mode and verify the 11-digit DEMS/DSC result codes in SP3-041-001
(DEMS) and SP3-046-001 (DSC).
Note: The result codes are displayed in the order of SSYYMMCCKKs with the code to
the left indicating the drum and code to the right indicating the development
roller for each color, and “s” indicating the state when K and S are exchanged.
If the four result codes are as in below, the machine is affected and showing the
symptom.
Drum
Development roller
SP3-041-001 (DEMS) SSYYMMCCKKs
1 or 2 or 3
1
SP3-046-001 (DSC) SSYYMMCCKKs
2
or
3
or
7
or
8
1
Example of a result code when 50mm pitch banding is observed in Magenta:
S
Drum
S
Dev.
roller
Y
Drum
Y
Dev.
roller
M
Drum
M
Dev.
roller
C
Drum
C
Dev.
roller
K
Drum
K
Dev.
roller
K/S
exchanged
SP3-
041-
001
1
1
1
3
1
1
1
1
2
1
0
SP3-
046-
001
1
3
8
7
3
1
1
1
1
2
0
If affected, set the SP value(s) of the affected color(s) to “0” to disable DSC,
K : SP3-682-031
C : SP3-682-032
M : SP3-682-033
Y : SP3-682-034
S : SP3-682-035
and then, execute DEMS/DSC in #0201:02 of the Adjustment Settings for Skilled
Operators menu or in SP3-011-012.
If the results are not as in above, i.e. unaffected, do the troubleshooting procedure for
banding in general.