Ricoh A029 Technical Bulletin FT7770
Technical Bulletin No. RTB-014
SUBJECT: Heat-Damaged Fusing Connector DATE: Jan. 31, ’91
PAGE: 1 of 1
PREPARED BY: M. Kitajima
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Symptom
The fusing connector is damaged by electrical arcing.
Cause
When the fusing connector (4P) [A] is loose or the pins of the fusing connector are
corroded, the resistance of the connected pins is increased. Arcing occurs between the
pins on the connectors and the two 11A pins [B] (red line for 11A and white line for 5.5A
[C]) are damaged as the result of excessive current.
[C]
Revision of service manual
Information only
Other
FROM: Copier Technical Support Group
MODEL: F21
[A]
[B]
Countermeasure
Make sure that the fusing connectors are plugged together securely.
On the production machine, a second line has been added to supply power to the 1100W
fusing lamp. The electric current carried by each wire is now 5.5A. (With only one wire,
the wire had to carry an 11A current to the 1100W fusing lamp.) For details, please see
F21 MB No.36 issued on Nov. 30, 1990.
Technical Bulletin No. RTB-015
SUBJECT: Malfunction in sort mode DATE: Feb. 28, ’91
PAGE: 1 of 1
PREPARED BY: Takaharu Okajima
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
1. Phenomenon
In sorting mode, the Interrupt key and the Mode Clear key are pressed on sequence, the
following malfunctions occur:
1) A sorter misfeed will be falsely indicated when the paper is fed out to the prooftray.
2) If the Operator opens and closes the front cover to reset the machine and then starts
copying, the first copy is fed out to the 1st bin.
1) and 2) will continue to occur until the main switch is turned off.
2. Countermeasure
Revision of service manual
Information only
Other
FROM: Copier Technical Support Group
MODEL: F21
The software in the EPROMs has been changed to solve this problem.
3. Cut in numbers
New EPROM part number;
P/N A029 6211C : EPROM - 0
P/N A029 6212D : EPROM - 1 - LT
P/N A029 6222C : EPROM - 1 - A4
Cut in serial numbers;
A029 - 11 : 102XXXX
A029 - 12 : 103XXXX
A029 - 14 : 7110300XXX
A029 - 15 : 7110100XXX
A029 - 16 : 12110100001
A029 - 17 : 2471030001
A029 - 25 : 12010100001
A029 - 26 : 3820310001
A029 - 27 : 2471010XXX
Technical Bulletin No. RTB-016
SUBJECT: Platinum Corona Wire DATE: Apr. 15, ’91
PAGE: 1 of 2
PREPARED BY: H. Kobayashi
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
The following platinum corona wires have been registered as service parts. The tungsten
corona wires are currently being installed on the assembly line, but they may be replaced
in the field with the platinum corona wires, if desired.
Platinum
corona P/N
#52199540 Corona Wire (1 pc/set) #52199101
#A0079540 Main Corona Wire (1 pc/set) #A0089001
#A0079541 PQC Corona Wire (1 pc/set) #A0079002
#A0079542 Transfer Corona Wire (1 pc/set) #A0079003
Revision of service manual
Information only
Other
Description Current Tungsten Corona P/N
FROM:Copier Technical Support Section
MODEL: F21
The platinum and the tungsten corona wires are fairly similar in performance and handling;
however, there are the following differences:
Point 1
During the copy cycle, less foreign matter (toner, dust, gas) will build up on the surface of
a platinum corona wire than on a tungsten wire. Consequently, platinum corona wires do
not need to be cleaned as often to maintain copy quality. This is true for both these
platinum corona wires and the third vendor’s platinum corona wires.
Point 2
Negative charges cause portions of the surface of a platinum corona wire to break off,
affecting the copy image and requiring replacement of the wire. A platinum wire cannot be
used as a negative charge corona. (A tungsten wire can be used as a negative charge
corona wire.) This is true for both these platinum corona wires and the third vendor’s
platinum corona wires.
Technical Bulletin No. RTB-016
SUBJECT: Platinum Corona Wire DATE: Apr. 15, ’91
PAGE: 2 of 2
--When to install the platinum corona wires-
The platinum corona wires do not have to be cleaned as often as the tungsten wires
(point 1). For this reason, the platinum corona wires are most suitable in cases where a
machine is installed in a relatively inaccessible location (far from a service center) and
service calls are difficult to make.
The platinum wires can be installed in the field on the following models:
Model Main Transfer PQC PCC Separation PTC
F20
F21
F22
F30
F31
F33
F34
F40
#52199540 #52199540 #52199540 Negative
charge.
Do not use.
#A0079540 #A0079542 #A0079541 Negative
charge.
Do not use.
Negative
charge.
Do not use.
Negative
charge.
Do not use.
Negative
charge.
Do not use.
Not used.
Note 1
When installing the platinum corona wires, please take the following actions:
1. Clean the corona casings, end blocks, and new platinum wires with damp cloth.
2. Confirm VSG.
Note 2
#A0079540 can also be used as the F90 main corona wire.
Technical Bulletin No. RTB-017
SUBJECT: Sorter /sorter stapler installation as a 20 bin, or 40 bin
system
PREPARED BY: I. Kakegawa
CHECKED BY:
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
This RTB clarifies installation of the sorter, sorter stapler, and connector units on the F20,
F21, and F22. Both 20bin and 40 bin systems are covered.
Because the F20, F21, and F22 copy at different speeds, the main PCB ROM on the old
sorter or sorter stapler must be replaced on some types of systems. Therefore, please
read this RTB carefully for F20/F21/F22 system installation.
1. TYPES OF SYSTEM
There are 8 types of F20/F21/F22 systems:
[Sorter System]
Revision of service manual
Information only
Other
FROM: Copier Technical Support Sec.
MODEL: F21
(Same RTB for F22--No.11 and
F20--No.28 are issued.)
DATE: July 15,’90
PAGE: 1 of 8
1) F20 or F21 + one sorter (20 bins) ....................No special action needed.
*2) F20 or F21 + two sorters (40 bins)....................See page 2 and 3.
3) F22 + one sorter (20 bins).................................No special action needed.
*4) F22 + two sorters (40 bins) ...............................See page 2 and 4.
[Sorter Stapler System]
1) F21 + one sorter stapler (20 bins).....................No special action needed.
*2) F21 + two sorter staplers (40 bins)....................See page 5 and 6.
*3) F22 + one sorter stapler (20 bins) .....................See page 5 and 7.
*4) F22 + two sorter staplers (40 bins)....................See page 5 and 8.
NOTE: Systems marked * need to have the ROM replaced if the old sorter or old sorter
stapler is used. Pay special attention to these systems.
Technical Bulletin No. RTB-017
SUBJECT: Sorter /sorter stapler installation as a 20 bin, or 40 bin
system
DATE: July 15,’90
PAGE: 2 of 8
2. SORTER SYSTEM
2--1. Modification history for two sorters and connector unit
Model Code Sorter: 5937 -- Sorter: A462 -- Sorter Connector
Unit: 5946 --
Model Name
P/N for
the sorter
ROM
Ricoh CS2060 for F20
Infotec sorter 9060 for F20
Nashua D820 for
F20/21/22.
Savin FS65 for F20/21.
Pitney Bowes D820 for
F20/21
Ricoh CS 2065 for F21/F22
Infotec Sorter 9165 for
F21/22
Savin Sorter for F22
Sorter Connector unit, type A.
Type 1 P/N 59375603 No production No production
Modification (1)
No sorter ROM enclosed in
the accessary box.
One piece of ROM with P/N
59375613 "G" is enclosed.
Type 2
P/N 59375613
from no suffi to "F"
Modification (2) Modification (3)
P/N 59375613
from no suffix to "F"
Type 3 P/N 59375613 "G" P/N 59375613 "G"
Modification (4)
NOTE:
Modification (1) is to adapt the F20/F21 with a 40 bin system from type 2 ROM.
Modification (2) and (3) are to adapt the F22 with a 40 bin system from type 3 ROM.
Modification (4) is to adapt the F22 with a 40 bin system even if old sorters
(type 1, or 2) in stock are used.
As you can see from the above table, there are:
•Three types of sorters for model code 5937
•Two types of sorters for model code A462
•Two types of connector units.
Technical Bulletin No. RTB-017
SUBJECT: Sorter /sorter stapler installation as a 20 bin, or 40 bin
system
DATE: July 15,’90
PAGE: 3 of 8
2--2. Necessary action by type of sorter system
[F20 or F21 + two sorters + connector unit (40 bins)]
With this type of system, the action required differs depending on the type of ROM on the
sorter main PCB and by type of the connector unit.
So, please check the part number of ROM and the serial number of the sorter and
connector unit. Then, you can know the type (old or new) of your sorter and connector
unit. For each type, please refer to page 2.
Sorter
[Cut-in serial number for modification (1)]
(From August, ’86 production onward.)
(See Modification (1) )
Old
(Type 1)
Sorter
Connector
Unit
5946--17 Ricoh USA
5946--27 Ricoh Europe
Nashua Europe
5946--27 Infotec 3441200001
Old
(Type 2)
New
(Type 3)
[Cut-in serial number for modification (4)
(From December, ’90 production onward)
Model S/N
Savin
Pitney Bowes
[A] [C]
[B] [D]
(Type 2 and 3)
21105xxxxx
2101200505
New
5937-11(Pitney Bowes) 6080001
5937-15 (Savin) 9460800025
5937-17 (Ricoh, USA) 1660800075
5937-25 (Nashua) 9260800002
5937-26 (Infotec) from first
5937-27 (Ricoh Europe) 1660800036
A462- all models from first
Model S/N
production
production
[A]: Old sorter (Type 1) + Old connector unit (Type 2).
The old ROM (P/N 59375603) on the first sorter main PCB should be replaced with
a new ROM. P/N 59375613, (no suffix or any suffix from A to G) is acceptable.
The ROM is not included, so please prepare one before installation.
[B]: Old sorter (Type 1) + New connector unit (Type 3).
The old ROM (P/N 59375603) on the first sorter main PCB should be replaced with
a new ROM (P/N 59375613G) enclosed in the carton box of the new connector
unit.
[C]: New sorter (Type 2 or 3) + Old connector unit (Type 2).
Since the sorter has a new ROM for 40 bins system, no action is required.
[D]: New sorter (Type 2 or 3) + New connector unit (Type 3).
No ROM replacement is required.
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