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Reissued on April 30, 1991
Technical Bulletin
No. RTB-003
SUBJECT: Corona Casing Cleaning
DATE:April 30,1991
PAGE: 1 of 1
PREPARED BY: M. Kitajima
CHECKED BY:
FROM: Copier Technical Support Section
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
MODEL: General
Revision of service manual
Information only
Other
This bulletin gives information on cleaning the corona casing.
CLEANING
Section
Action at EM/PM
Casing
Clean with water first and with alcohol if
toner still remains.
End Block
Clean with a blower brush and then with
alcohol.
EXPLANATION
The corona discharge causes ammonium nitrate (NH
4
NO
3
) to accumulate on the corona
casing.
NH
4
NO
3
functions as an insulator that reduces the corona discharge to the casing. The
power pack responds by increasing the voltage to the corona wire in order to maintain a
constant current output. (The power pack is a constant current type.)
If toner or some other material accumulates inside the corona end block especially inside
the hook groove [A], it may cause an electrical leak under humid conditions.
NH
4
NO
3
can be easily removed with water but not with alcohol. Toner can be easily
removed with alcohol but not with water.
Therefore, be careful to use the proper cleaning method for each corona unit section.
[A]
REVISED ON APRIL 15, 1991
Technical Bulletin
No. RTB-005
SUBJECT: Cleaning Solutions
DATE: Dec. 30, ’90
PAGE: 1 of 1
PREPARED BY: T. OKAJIMA
CHECKED BY:
FROM: International Q.A. Center
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
MODEL: General
Revision of service manual
Information only
Other
Based upon the request from the market, three type of cleaning solution have been
registered as service parts. Please order them from the parts center as usual. The details
are as follows:
1. EXTERIOR COVER CLEANER (NET. 220 cc)
P/N: A0129530
Purpose:
1) To clean the exterior covers
2) To remove spilt silicone oil from the floor
Procedure:
1) Shake well and spray onto the soiled cover or on the floor.
2) After 10 seconds, wipe cleaner using a soft cloth.
2. DF BELT CLEANER (NET. 180 cc)
P/N: A0129531
Purpose:
To clean document feeder belts.
Procedure:
1) Dampen a soft cloth with the cleaner, and wipe the belt.
2) Repeat until the belt is clean.
3. Optics Cleaner (NET. 190 cc)
P/N: A0129532
Purpose:
To clean mirrors, lenses, exposure glasses, and paper feed rollers
Procedure:
Dampen a soft cloth with the cleaner, and wipe the soiled parts.
CAUTION
Since these three type of cleaning solution are
FLAMMABLE
, pay attention to the
following caution:
1. Do not spray onto bare skin.
2. Keep away from heat and open flame.
3. Store in a cool place.
4. Keep away from children.
5. Do not dispose of the cleaner by burning it, by applying heat to it, or by any
means that might cause it to ignite.
6 Comply with all local regulations for disposal.
Technical Bulletin
No. RTB-006
SUBJECT: New Tri-flow Lubricant
DATE: Jan 15, 91
PAGE: 1 of 1
PREPARED BY: N. Takai
CHECKED BY:
FROM: Copier Technical Support Section
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
MODEL: General
Revision of service manual
Information only
Other
To protect the environment, the tri-flow lubricant (P/No. 52159533) that uses CFC aerosol
propellants has been discontinued. A new tri-flow that uses LPG as the propellant is now
being supplied.
NOTE:
CFC (chlorofluorocarbon) gasses are believed to contribute to the depletion of the
earth’s ozone layer.
New Tri-flow: P/No.: 52159539 (Volume: 27 ml)
Technical Bulletin
No. RTB-008
SUBJECT: Ground Sheet
DATE: Mar 31,’91
PAGE: 1 of 1
PREPARED BY: M. Ninomiya
CHECKED BY:
FROM: Copier Technical Support Sec.
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
MODEL: General
Revision of service manual
Information only
Other
Two different sizes of ground sheets have been registered as service parts.
These sheets help keep the customer’s floor clean by catching any toner, oil, etc, that
may fall to the floor while customer engineer is servicing a copier.
800 mm
650 mm
920
mm
1200
mm
Small(Green) (P/N A0099019)
Large (Gray) (P/N A0099017)
Technical Bulletin
No. RTB-009
SUBJECT: Service Parts Package Improvement
DATE: Mar. 31, ’92
PAGE: 1/1
PREPARED BY: N. Takai
CHECKED BY:
FROM: Copier Technical Support Sec.
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
MODEL: General
Revision of service manual
Information only
Other
The earth is a closed environment with limited resources. People need a good
environment, where they can live safely and comfortably. We, Ricoh as a manufacturer,
believe that protecting the environment and passing on a better environment to posterity is
one of the most important duties of every living being.
In live with the above concept, we are improving not only the machines, but even the
packages for the service parts to help preserve the environment as follows:
Schedule for improvement of service parts packaging
Item
From (target)
Step 1:
Elimination of plastic made from Polyvinyl chloride (PVC)
Feb. ’92
Step 2:
Elimination of glueing different materials together
Aug. ’92
(i.g. styrofoam and cardboard)
* This is to facilitate segregating the waste by material.
Step 3:
Reduction of usage of cardboard (10% less)
Sep. ’92
* This is to reduce wasting resources.
This bulletin covers all package changes for service parts related to the preservation of the
environment. We will not inform you of the changes for individual parts packages.
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