MODIFICATION BULLETIN NO. 1 Page 2 of 15ISSUED ON: Sep. 15, ’91
3. Part number correction
NRG/RicohIndexIncorrect P/NCorrect P/NDescription
NRG22C2132411Front Door
C2112802Front Door - LG (GES 5315)
C2112814Front Door - B4 - TWN (GES 5320)
C2112806Front Door - B4 (GES 5320)
C2112812Front Door - A4 (GES 5310)
C2112881Front Door - LG (REX 1241)
C2112888Front Door - B4-TWN (REX 1242)
C2112808Front Door - B4 (REX 1242)
C2112886Front Door - A4 (REX 1240)
C2112891Front Door - LG (NSA CP315)
C2112896Front Door - A4 (NSA CP310)
Roicoh22C2132411Front Door
C2112705Front Door - LG
C2112712Front Door - A4/B4
To improve the durability of the 2nd feed roller gear
Modification
Draw
No.
Old Parts
No.
C2035231C2075231Gear - 14TX/O1227
New Parts
No.
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No. Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
Page 17
MODIFICATION BULLETIN NO. 2 Page 2 of 3ISSUED ON: September 15, ’91
DETAILS OF MODIFICATION
It was reported that on some machines in the field, the image position varies. Although this is a very rare case, at worst this
happened after making about 200, 000 prints. On the problem machine, the one-way clutch inside the 2nd feed roller gear slips just
when the 2nd feed rollers start feeding a sheet. (The paper feed start timing is delayed.) This makes the image position vary, i.e.
move up or down in paper feed direction. After investigation, it was found that the grease inside the one-way clutch changes in
quality and damage the inside surface of the clutch. The new 2nd feed roller gear contains a new type of grease that does not
change in quality unlike the old one. To distinguish the new gear from the old one, a groove is made on the new gear.
2mm
Gear - 14T
Groove
T. Ito, Manager
Copier Technical Support
Page 18
MODIFICATION BULLETIN NO. 2 Page 3 of 3ISSUED ON: September 15, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321070001
Ges 5320 (B4)110/60TaiwanC211-13From August ’91 Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070012
Ricoh VT2100 (B4)110/60TaiwanC211-19From August ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’91 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’91 Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27C2801070001
Ricoh VT2100 (B4)220, 240/60AsiaC211-29C2801070052
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From August ’91 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From August ’91 Production
Page 19
MODIFICATION BULLETIN NO. 3 Page 1 of 3ISSUED ON: September 15, ’91
To prevent the feed roller arm from touching the paper feed side plate
Modification
Draw
No.
Old Parts
No.
C2035058C2095035Feed Roller ArmX/O321
New Parts
No.
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No. Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
Page 20
MODIFICATION BULLETIN NO. 3 Page 2 of 3ISSUED ON: September 15, ’91
DETAILS OF MODIFICATION
When the paper table is lowered, the feed roller arm contacts the side pad lever if the paper feed side plates are fully opened. To
prevent this, the shape of the feed roller arm has been changed as shown in the illustration below.
T. Ito, Manager
Copier Technical Support
Page 21
MODIFICATION BULLETIN NO. 3 Page 3 of 3ISSUED ON: September 15, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From August ’91Production
Ges 5320 (B4)110/60TaiwanC211-13From August ’91Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’91Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’91Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’91Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070012
Ricoh VT2100 (B4)110/60TaiwanC211-19From August ’91Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’91Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’91Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27From August ’91Production
To improve strength and durability of the paper detecting arm
Modification
Draw
No.
Old Parts
No.
C2035515C2095515Paper Detecting ArmX/X X/O as a set1327
08046090Hexagon Bolt - M410527
07130040BHexagon Nut - M410627
New Parts
No.
05730050E
Description
Hexagon Headless Set Screw M3 x 5
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No. Page
Q’ty Used
Old → New
Inter-
change-
ability
X/X* 11427
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
Page 23
MODIFICATION BULLETIN NO. 4 Page 2 of 3ISSUED ON: September 15, ’91
DETAILS OF MODIFICATION
To improve strength and durability, the paper detecting arm has been changed to the type used on the NA2 (C210).
Hexagon Bolt - M4
Hexagon Headless
Paper Detecting Arm
Set Screw - M3 x 5
Hexagon Nut - M4
T. Ito, Manager
Copier Technical Support
Page 24
MODIFICATION BULLETIN NO. 4 Page 3 of 3ISSUED ON: September 15, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321070001
Ges 5320 (B4)110/60TaiwanC211-13From August ’91 Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070012
Ricoh VT2100 (B4)110/60TaiwanC211-19From August ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’91 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’91 Production
Modified ArticleElectrical components on A/D Conversion Board
Reason for
To prevent thin black line in 64% or 82% reduction mode
Modification
Draw
No.
Old Parts
No.
14072339TTL-IC - SN74LS24INS1 → 013269
16100079Registor - 22KΩ 1/8W ± 5%2 → 118869
New Parts
No.
14071600TTL-IC - SN74LS244NS0 → 1X/O
16302472Registor - 4.7KΩ 1/8W ± 5%0 → 1X/O
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No. Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 26
DETAILS OF MODIFICATION
Before mass-production, it was found that a thin vertical black line (One CCD pixel’s width) appeared on the
rear side of the copies when 64% (USA version machine) or 82% (The other versions machine) reduction
mode was selected. To prevent this, the magnification ratios at their reduction modes were slightly altered by
changing the PROM on the image processing board (For details, please refer to RTB No. 2 .). The suffix at
the end of the part number was modified as follows:
USA version Image Processing Board : C2118033A to C2118033B
The other versions Image Processing Board : C2118002A to C2118002B
PROM (Common for all version) : C2118004 to C2118004A
As a permanent solution, some electrical components on the A/D conversion board have been changed as
follows:
MODIFICATION BULLETIN NO. 5 Page 2 of 4ISSUED ON: September 15, ’91
IC601: 14072339 (IC - SN74LS241NS) to 14071600 (IC - SN74LS244NS)
R734: 16100079 (22KΩ tip type register) to 16302472 (4.7 K Ω tip type register)
The new A/D conversion board solves the above problem without the magnification ratio change. So, now
the PROM on the image processing board has been changed back to the previous type. The part numbers of
these parts are still the same, but their suffixes have been modified as follows for identification:
Page 27
DETAILS OF MODIFICATION
A/D Conversion Board : C2038018A to C2038018B
USA version Image Processing Board : C2118033B to C2118033C
The other versions Image Processing Board : C2118002B to C2118002C
PROM : C2118004A to C2118004B
NOTE: 1. The PROM C2118004B has completely the same function as the no-suffix ROM (C2118004).
2. When an old type A/D conversion board is installed with a machine equipped the new PROM
(C2118004B), the black line will appear (only in the 64% or 82% reduction mode). So, the
PROM should be changed back to the old type (C2118004A) at the same time.
MODIFICATION BULLETIN NO. 5 Page 3 of 4ISSUED ON: September 15, ’91
T. Ito, Manager
Copier Technical Support
Page 28
MODIFICATION BULLETIN NO. 5 Page 4 of 4ISSUED ON: September 15, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321060001
Ges 5320 (B4)110/60TaiwanC211-13From July ’91 Production
Rex 1242 (B4)110/60TaiwanC211-14From July ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From July ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From July ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801060001
Ricoh VT2100 (B4)110/60TaiwanC211-19From July ’ 91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411060001
Rex 1242 (B4)220, 240/50AsiaC211-24From July ’ 91 Production
To match the appearance of the Delivery Guide Plates
Modification
Draw
No.
Old Parts
No.
C2076118C2136118Left Guide Plate1 → 1O/O237
New Parts
No.
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No. Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
Page 30
MODIFICATION BULLETIN NO. 6 Page 2 of 3ISSUED ON: September 15, ’91
DETAILS OF MODIFICATION
The right guide plate of the priport VT2000 series was changed from that of the priport SS series in order to allow for the installation of
the tape dispenser unit. As a result, the appearance of the right guide plate was different from the old one. This was visible especially
when the right and left guide plates were closed. (See figure)
Now the left guide plate has been changed to watch its appearance with that of the right guide plate. The difference between the new
and old one is only in the appearance of the backside (Interchangeability is O/O).
Left Guide
Plate
T. Ito, Manager
Copier Technical Support
Page 31
MODIFICATION BULLETIN NO. 6 Page 3 of 3ISSUED ON: September 15, ’91
Ges 5310 (A4)220, 240/60EuropeC211-62
Rex 1240 (A4)220, 240/60EuropeC211-64
Page 32
MODIFICATION BULLETIN NO. 7 Page 1 of 3ISSUED ON: September 15 , ’91
ModelVT 2100/2130/2150, Ges 5310/5315/5320, Rex 1240/1241/1241, NSA CP310/315Volt/Hz
Modified ArticlePower Supply Unit
Reason for
To improve the response of the power supply circuit
Modification
Draw
No.
Old Parts
No.
16061492Capacitor - 1µF±30 - 80% 50V13073
New Parts
No.
16060807Capacitor - 0.1µF 50VX/O
Description
Modification
A.B.C.
RankPart No.Description
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Date of
Serial Number
Index
No.
Page
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 33
MODIFICATION BULLETIN NO. 7 Page 2 of 3ISSUED ON: September 15 , ’91
DETAILS OF MODIFICATION
At the factory, it was found that the machine sometimes fails to start working if an operator repeatedly turns the main switch
on and off very quickly. In this case, dc 5V is not supplied.
A capacitor used in the power supply unit has been changed so that power supply circuit responds quickly.
Part number of the power supply unit has not been changed but suffix has been changed to A.
Power Supply Unit C2138302 C2138302A
C126
1µF 0.1µF
T. Ito, Manager
Copier Technical Support
Page 34
MODIFICATION BULLETIN NO. 7 Page 3 of 3ISSUED ON: September 15 , ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321070001
Ges 5320 (B4)110/60TaiwanC211-13From August ’91 Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070012
Ricoh VT2100 (B4)110/60TaiwanC211-19From August ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’91 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’91 Production
To increase attraction between the magnet catch and the magnet plate
Modification
Draw
No.
Old Parts
No.
C2002432C2132435Magnet PlateX/O249
New Parts
No.
Description
Modification
A.B.C.
RankPart No.Description
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Date of
Serial Number
Index
No.
Page
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 36
MODIFICATION BULLETIN NO. 8 Page 2 of 3ISSUED ON: September 30, ’91
DETAILS OF MODIFICATION
In VT series, the flat head screws fixing the magnet plate project out of the holes of the magnet plate because the heads of the screws
are a little bigger than the holes. This weakens the attraction between the magnet catch and the magnet plate (illustration A).
To increase the attraction, the holes of the magnet plate have been made bigger so that the magnet sticks the magnet plate tightly
(illustration B).
Magnet Plate
Old
Magnet Catch
A
New
B
T. Ito, Manager
Copier Technical Support
Page 37
MODIFICATION BULLETIN NO. 8 Page 3 of 3ISSUED ON: September 30, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From September ’91 Production
Ges 5320 (B4)110/60TaiwanC211-1350431080007
Rex 1242 (B4)110/60TaiwanC211-14From September ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-1550321080181
NSA CP315 (LG)120/60USA, CanadaC211-16From September ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801080005
Ricoh VT2100 (B4)110/60TaiwanC211-19From September ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-22From September ’91 Production
Rex 1242 (B4)220, 240/50AsiaC211-24From September ’91 Production
Part needed for replacement by new partParts Catalog
Serial Number
* New Index
Rank: A : Replace with new parts immediately. B : Replace with new parts at time of repair. C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 39
MODIFICATION BULLETIN NO. 9 Page 2 of 3ISSUED ON: October 15, ’91
DETAILS OF MODIFICATION
To prevent paper jamming under low humidity conditions caused by static electricity on the paper, an antistatic brush is
added on the upper second feed roller guide plate. Refer to RTB No. 3 for details.
Antistatic Brush
T. Ito, Manager
Copier Technical Support
Page 40
MODIFICATION BULLETIN NO. 9 Page 3 of 3ISSUED ON: October 15, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321070001
Ges 5320 (B4)110/60TaiwanC211-1350431080001
Rex 1242 (B4)110/60TaiwanC211-14From September ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-1550321080181
NSA CP315 (LG)120/60USA, CanadaC211-16From september ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070001
Ricoh VT2100 (B4)110/60TaiwanC211-19From September ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From September ’91 Production
Part needed for replacement by new partParts Catalog
Serial Number
* New Index
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 42
DETAILS OF MODIFICATION
To ensure that the power supply circuit responds quickly (Refer to the MB No. 7), a ferrite core is added to the anode
of the diode D115.
Part number of the power supply unit has not been changed but suffix has been changed to B.
MODIFICATION BULLETIN NO.10 Page 2 of 3 ISSUED ON: October 31, ’91
Ferrite Core - B-20F-38
T. Ito, Manager
Copier Technical Support
Page 43
MODIFICATION BULLETIN NO.10 Page 3 of 3 ISSUED ON: October 31, ’91
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321070001
Ges 5320 (B4)110/60TaiwanC211-13From August ’91 Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801070012
Ricoh VT2100 (B4)110/60TaiwanC211-19From August ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411070001
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’91 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’91 Production
C2123122C2033030Grip Bracket - NRGX/O1049
C2033120C2033118Grip Bracket - RicohX/O1049
C2033032C2133032Lock LeverX/XX/O as a set3549
C2033033C2133033Lock Lever - TransmissionX/X2549
05530100EAllen Screw - M3 x 10X/O11649
New Parts
No.
05530060EAllen Screw - M3 x 6
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No.Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 45
MODIFICATION BULLETIN NO. 11 Page 2 of 3ISSUED ON: October 31, ’91
DETAILS OF MODIFICATION
In the present machines, it is difficult to tighten the screw fixing the lock lever to the shaft. It is necessary to remove the
scanner unit to access the screw.
To facilitate servicing, the direction of the screw has been changed and the cutout of the bracket has been enlarged so that a
customer engineer can access the screw from the cutout of the bracket.
Lock Lever
Grip Bracket
Lock Lever - Transmission
Allen Screw - M3 x 10
Allen Screw - M3 x 6
T. Ito, Manager
Copier Technical Support
Page 46
MODIFICATION BULLETIN NO. 11 Page 3 of 3ISSUED ON: October 31, ’91
Rex 1242 (B4)110/60TaiwanC211-14From October ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From October ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From October ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801090001
Ricoh VT2100 (B4)110/60TaiwanC211-19From October ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411090001
Rex 1242 (B4)220, 240/50AsiaC211-24From October ’91 Production
Part needed for replacement by new partParts Catalog
Serial Number
* New Index
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 48
MODIFICATION BULLETIN NO. 12 Page 2 of 3 ISSUED ON: December 15, ’91
DETAILS OF MODIFICATION
A master flange decal [A], which shows how much master is left on the roll, has been added to the master roll flange [B]. The
following table shows the machine type, flange, and decal combination.
MachinesPaper SizeFlange (with decal)Decal
VT2130, Ges 5315, Rex1241, NSA CP315LGC2074010
C2074011
VT2100, Ges 5320, Rex 1242 B4C2074041
VT2150, Ges 5310, Rex 1240, NSA CP310A4C2114025C2114026
[B]
[A]
T. Ito, Manager
Copier Technical Support
Page 49
MODIFICATION BULLETIN NO. 12 Page 3 of 3 ISSUED ON: December 15, ’91
Rex 1242 (B4)110/60TaiwanC211-14From October ’91 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From October ’91 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From October ’91 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801090001
Ricoh VT2100 (B4)110/60TaiwanC211-19From October ’91 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250411090001
Rex 1242 (B4)220, 240/50AsiaC211-24From October ’91 Production
To increase reliability of the pressure spring link
Modification
Draw
No.
Old Parts
No.
C2005543C2095543Pressure Roller Spring Link1 → 1X/X2131
New Parts
No.
C2095521Joint Shaft0 → 1* 2831
07200030ZRetaining Ring - M30 → 2* 2931
Description
Date of
Modification
A.B.C.
RankPart No.DescriptionIndex No.Page
Q’ty Used
Old → New
Inter-
change-
ability
Part needed for replacement by new partParts Catalog
Serial Number
X/O as a set
* New Index
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhall.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for replacement by new part" to
install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether the new part can be used
in the old machine. x = Not interchangeable o = Interchangeable
Page 51
MODIFICATION BULLETIN NO. 13 Page 2 of 3ISSUED ON: February 15 ’92
DETAILS OF MODIFICATION
To increase the reliability, the pressure spring link is modified as shown in the illustration 1. Du e to this modification, the
adjustment value of the bolt clearance [A] has been changed as shown in the illustration 2.
Standard Setting:
11mm for B4 machines
Joint Shaft
Illustration 1
Pressure Roller
Spring Link
Retaining Link - M3
16mm for A4/LG machines
[A]
Illustration 2
T. Ito, Manager
Copier Technical Support
Page 52
MODIFICATION BULLETIN NO. 13 Page 3 of 3ISSUED ON: February 15 ’92
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250321110001
Ges 5320 (B4)110/60TaiwanC211-1350431110001
Rex 1242 (B4)110/60TaiwanC211-14From December ’91 Produciton
Rex 1241 (LG)120/60USA, CanadaC211-15From December ’91 Produciton
NSA CP315 (LG)120/60USA, CanadaC211-16From December ’91 Produciton
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2801110001
Ricoh VT2100 (B4)110/60TaiwanC211-19From December ’91 Produciton
Ges 5320 (B4)220, 240/50AsiaC211-2250411110001
Rex 1242 (B4)220, 240/50AsiaC211-24From December ’91 Produciton
MODIFICATION BULLETIN NO. 17 Page 2 of 2ISSUED ON: August 15, ’92
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From July ’92 Production
Ges 5320 (B4)110/60TaiwanC211-13From July ’92 Production
Rex 1242 (B4)110/60TaiwanC211-14From July ’92 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From July ’92 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From July ’92 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17From July ’92 Production
Ricoh VT2100 (B4)110/60TaiwanC211-19From July ’92 Production
Ges 5320 (B4)220, 240/50AsiaC211-2250412060001
Rex 1242 (B4)220, 240/50AsiaC211-2450212060001
NSA CP310 (A4)220, 240/50EuropeC211-25C2802060074
Ricoh VT2150 (A4)220, 240/60EuropeC211-27From July ’92 Production
Ricoh VT2100 (B4)220, 240/60AsiaC211-29From July ’92 Production
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-6250212060027
Rex 1240 (A4)220, 240/60EuropeC211-6450212060118
C2118045C2118057IC - TMM27256BD - 20
C2118114C2118118Main Control Board - A4
C2118112C2118116Main Control Board - LG
C2118113C2118117Main Control Board - B4
New Parts
No.
DescriptionRank
Q’ty Used
Old → New
1 → 1
1 → 1
1 → 1
1 → 1
Date of
Modification
Inter-
change-
ability
O/O2963
O/O3063
O/O3063
O/O3063
Part needed for replacement by new part
Part No.Description No. Page
Serial
Number
Parts
Catalog
Rank: A : Replace with new parts immediately.B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
I Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for
replacement by new part" to install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether
the new part can be used in the old machine. x = Not interchangeable o = Interchangeable
Page 64
MODIFICATION BULLETIN NO. 19 PAGE 2 OF 5
Reissued on: February 15, ’94
ISSUED ON: October 15, ’93
Reissued on: February 15, ’94
ISSUED ON: October 15, ’93
DETAILS OF MODIFICATION
It has been found that a horizontal thin white line appears 64 mm from the lead ing edge of prints. The line may be visible whe n
the image is made using the photo mode . This line is caused by a shock wave when the master is clamped by the drum master
clamper.
1. To erase this white line, th e software has been changed to delay the timing of the master clampin g. With the old software,
the reverse roller solenoid [A] and the ma ste r clamper solenoid were turned off at the same time. (Due to the slow response of
the old spring clutch, th e reve rse rolle r st ops f eeding the master after the maste r wa s clampe d.) The new software enables that
the master is clamped when the master is fed 2 mm further after the reverse roller stops feeding the master. This allows to
make a small buckle of the master, which ab sorb s the shock wave , be twe en the plat en roller an d th e reverse roller before the
leading edge of the mast er is clamped.
The new ROM can be used also for existing machines. The only side effect is that the image on prints is forwarded about 1 or 2
mm due to the slow response of the old mechan ism. (This valu e varies due to ratchets of the clutch gear.) If the old ROM is
used for a modified ma chin e (this is the same situation as the ne w clutch mechanism installed on the old mach ine), the image
is shifted approximately 0.6 mm backwards.
NOTE: The part numbers of the RO Ms and main PCBs for the VT2000 series have bee n cha ng ed . The ma in PCB s have not
been changed except for the ROMs. The old PCBs and the new PCBs are interchangeable.
2. To enable the proper reverse rolle r stop timing , the reverse roller clutch mechanism has bee n cha nged from th e conbination
of a solenoid [A] and a spring clutch [B] to an elect rical clutch [C]. To cope with the strictly contro lled reverse roller stop timing,
the electrical clutch respo nds a lit tle bit quicker than the old clutch mechanism. (If the old sprin g clut ch is used, the only side
effect is as mentioned above.)
To make assembly of the clutch sto pp er [E ] in the factory easier, a projection [F] is added on the right side plat e [D]
(C2164005). Even if the side plate does not have this project ion, the clutch stopper can be installed on the side plate with one
screw [G] (09604008Z). So, the part number of the right side plate has not been changed. Also, the shape of the upper reverse
roller shaft [H] has been changed to match the elect rical clut ch. The old spring clutch [B] can be replaced wit h the new electrical
clutch [C] (C2158240) with the clutch stopper [G ] (C21 54 200) an d the upper reverse roller (C2154046).
Page 66
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 19 PAGE 4 OF 5
Reissued on: February 15, ’94
ISSUED ON: October 15, ’93
[C]
DETAILS OF MODIFICATION
[B]
[D]
[A]
[G]
[E]
[H]
[F]
Page 67
MODIFICATION BULLETIN NO. 19 PAGE 5 OF 5
Reissued on: February 15, ’94
ISSUED ON: October 15, ’93
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-1250323040001
Ges 5320 (B4)110/60TaiwanC211-13From September ’93 Production
Rex 1242 (B4)110/60TaiwanC211-14From September ’93 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From September ’93 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From September ’93 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17C2803040001
Ricoh VT2100 (B4)110/60TaiwanC211-19C2803060011
Ges 5320 (B4)220, 240/50AsiaC211-2250413040001
Rex 1242 (B4)220, 240/50AsiaC211-2450413040006
NSA CP310 (A4)220, 240/50EuropeC211-2550513050006
Ricoh VT2150 (A4)220, 240/60EuropeC211-27C2803080001
Ricoh VT2100 (B4)220, 240/60AsiaC211-29From September ’93 Production
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From September ’93 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From September ’93 Production
Page 68
MODIFICATION BULLETIN NO. 20 PAGE 1 OF 2
ISSUED ON:February 15, ’94
Model
Modified ArticleUpper Hinge - Front Door
Reason for
Modification
VT2100/2130/2150, Ges 5310/5315/5320, Rex 1240, 1241, 1242,NSA
CP310/315
Parts standardization
Due to parts standardization, the following part has been changed.
Old P/NNew P/NDescriptionQ’ty Used
C2132405C2162405Upper Hinge - Front Door
1 → 1
Volt/Hz
Inter-
change-
ability
O/O253
Index No.Page
Date of
Modification
Parts Catalog
Serial Number
S. Hamano, Assistant General Manager
Technical Support Department
Rank: A : Replace with new parts immediately. B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for
replacement by new part" to install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether
the new part can be used in the old machine. x = Not interchangeable o = Interchangeable
Page 71
MODIFICATION BULLETIN NO. 21 PAGE 2 OF 3
C20350 10
C2095220
DETAILS OF MODIFICATION
To facilitate servicing, the stepped screw supportin g the paper fee d pressure lever ha s been cha nged
with a combination of a space r a nd a philip s screw - M4 x 10.
ISSUED ON: March 15, ’94
03140100Z
S. Hamano, Assistant General Manager
Technical Support Department
Page 72
MODIFICATION BULLETIN NO. 21 PAGE 3 OF 3
ISSUED ON: March 15, ’94
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12
Ges 5320 (B4)110/60TaiwanC211-13
Rex 1242 (B4)110/60TaiwanC211-14
Rex 1241 (LG)120/60USA, CanadaC211-15
NSA CP315 (LG)120/60USA, CanadaC211-16
Ricoh VT2130 (LG)120/60USA, CanadaC211-17
Ricoh VT2100 (B4)110/60TaiwanC211-19
Ges 5320 (B4)220, 240/50AsiaC211-22
Rex 1242 (B4)220, 240/50AsiaC211-24
S. Hamano, Assistant General Manager
Technical Support Department
Page 80
MODIFICATION BULLETIN NO. 25 PAGE 2 OF 2
Reissued on: February 15, ’95
ISSUED ON: September 15, ’94
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From March ’94 Production
Ges 5320 (B4)110/60TaiwanC211-13From March ’94 Production
Rex 1242 (B4)110/60TaiwanC211-14From March ’94 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From March ’94 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From March ’94 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17From March ’94 Production
Ricoh VT2100 (B4)110/60TaiwanC211-19From March ’94 Production
Ges 5320 (B4)220, 240/50AsiaC211-22From March ’94 Production
Rex 1242 (B4)220, 240/50AsiaC211-24From March ’94 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From March ’94 Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27From March ’94 Production
Ricoh VT2100 (B4)220, 240/60AsiaC211-29From March ’94 Production
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From March ’94 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From March ’94 Production
To improve reliability, the relays (RA303 and RA304) for the driving paper table drive motor have been changed.
Serial Number
S. Hamano, Assistant General Manager
Technical Support Department
Page 82
MODIFICATION BULLETIN NO. 26 PAGE 2 OF 2
ISSUED ON: September 15, ’94
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From August ’93 Production
Ges 5320 (B4)110/60TaiwanC211-13From August ’93 Production
Rex 1242 (B4)110/60TaiwanC211-14From August ’93 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’93 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’93 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17From August ’93 Production
Ricoh VT2100 (B4)110/60TaiwanC211-19C2803070001
Ges 5320 (B4)220, 240/50AsiaC211-22From August ’93 Production
Rex 1242 (B4)220, 240/50AsiaC211-24From August ’93 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’93 Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27From August ’93 Production
Ricoh VT2100 (B4)220, 240/60AsiaC211-29From August ’93 Production
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From August ’93 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From August ’93 Production
To meet new safety stan da rd, the transformer for the 220/240V machines has been changed. Due to th is
modification, th e transformer bracket has also been chan ge d.
Date of
Serial Number
S. Hamano, Assistant General Manager
Technical Support Department
Page 84
MODIFICATION BULLETIN NO. 27 PAGE 2 OF 2
ISSUED ON: September 15, ’94
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From September ’93 Production
Ges 5320 (B4)110/60TaiwanC211-13From September ’93 Production
Rex 1242 (B4)110/60TaiwanC211-14From September ’93 Production
Rex 1241 (LG)120/60USA, CanadaC211-15From September ’93 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From September ’93 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17From September ’93 Production
Ricoh VT2100 (B4)110/60TaiwanC211-19C2803070001
Ges 5320 (B4)220, 240/50AsiaC211-22From September ’93 Production
Rex 1242 (B4)220, 240/50AsiaC211-24From September ’93 Production
NSA CP310 (A4)220, 240/50EuropeC211-25From September ’93 Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27C2803080001
Ricoh VT2100 (B4)220, 240/60AsiaC211-29From September ’93 Production
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From September ’93 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From September ’93 Production
Rank: A : Replace with new parts immediately. B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for
replacement by new part" to install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether
the new part can be used in the old machine. x = Not interchangeable o = Interchangeable
Page 86
MODIFICATION BULLETIN NO. 28 PAGE 2 OF 4
ISSUED ON: September 15, ’94
DETAILS OF MODIFICATION
There are 4 sets of master eject rolle rs and belt s. In the A4 or 81/2" 14" size master version machines, both sides of
the 4 sets do no catch the master edges sufficiently while transporting it. Even with this mechanism, used masters
can usually be ejected properly. However, when a master eject jam occurs in this area, th e jamme d master te nd s to
be creased among the rollers and belts. In the worst case, the master eject belt will slip off when the op erator roughly
removes the creased and jamme d mast er.
To prevent this, both side s of the 4 sets of the master eject rolle rs a nd belts have been moved more inward 20 mm so
that they can catch the maste r mo re suf ficie ntly (just like the B4 size master version machin es). To do this, the
following changes have been implemented.
1) To move the 2 outside second lower eject rollers inward, the bottom plate of the master eject unit (# C2033527)
has been changed. ( The guides for the 2 rollers, which are fixe d to the botto m plate, have been moved.)
2) To move the 2 outside of th e first upp er and lower eject rollers to inward, the asse mble d first upper and lower eject
rollers (# C2003539 and # C2003542) have be en chan ged.
3) To move the 2 outside second upper eject rollers inward, the positions of the grooves for the E-rings that fix the
rollers on the shaft (# C2013530) have be en mo ved .
Page 87
MODIFICATION BULLETIN NO. 28 PAGE 3 OF 4
ISSUED ON: September 15, ’94
DETAILS OF MODIFICATION
4) There are 4 cut ou ts on the pressure plate (# C2003708) to pre vent the pressure plate fro m tou chin g th e gu ides
for the second lower eject ro llers on the bot to m plat e. As the 2 outside guides have bee n move d (see #1), the
2 outside cutouts have been enla rged accordingly. The new pressure plat e can also be used for the B4
version machines or old A4 / 81/2" x 14 versio n mach ines. (The other new parts can be used on ly as a set of
all new parts.)
OLD
NEW
S. Hamano, Assistant General Manager
Technical Support Department
Page 88
MODIFICATION BULLETIN NO. 28 PAGE 4 OF 4
ISSUED ON: September 15, ’94
MODEL NAME
Ges 5315 (LG)120/60USA, CanadaC211-12From August ’94 Production
Ges 5320 (B4)110/60TaiwanC211-13
Rex 1242 (B4)110/60TaiwanC211-14
Rex 1241 (LG)120/60USA, CanadaC211-15From August ’94 Production
NSA CP315 (LG)120/60USA, CanadaC211-16From August ’94 Production
Ricoh VT2130 (LG)120/60USA, CanadaC211-17From August ’94 Production
Ricoh VT2100 (B4)110/60TaiwanC211-19
Ges 5320 (B4)220, 240/50AsiaC211-22
Rex 1242 (B4)220, 240/50AsiaC211-24
NSA CP310 (A4)220, 240/50EuropeC211-25From August ’94 Production
Ricoh VT2150 (A4)220, 240/60EuropeC211-27From August ’94 Production
Ricoh VT2100 (B4)220, 240/60AsiaC211-29
V/HzDESTINATIONCODESERIAL NUMBER
Ges 5310 (A4)220, 240/60EuropeC211-62From August ’94 Production
Rex 1240 (A4)220, 240/60EuropeC211-64From August ’94 Production
Rank: A : Replace with new parts immediately. B : Replace with new parts at time of repair.C : Replace with new parts at time of overhaul.
Interchangeability:
(1) When old and new parts are not mutually interchangeable, use additional parts or an assembly part as indicated in "Parts needed for
replacement by new part" to install the new part.
(2) The mark to the left of the slash indicates whether the old part can be used in the new machine, and the mark to the right indicates whether
the new part can be used in the old machine. x = Not interchangeable o = Interchangeable
0 → 1
1 → 1
O/O2413
O/O3313
Page 94
MODIFICATION BULLETIN NO. 30 PAGE 2 OF 6
ISSUED ON: March 15, ’96
Draw
No.
Old Parts
No.
C2012209Bushing Stopper
14030539
55061535Right Side Pad
New Parts
No.
C2072211Bearing Stopper
AW020041Photointerruptor
C2095092Rubber Plate Lever
DescriptionRank
Photointerruptor EE-SX450-P1
Q’ty Used
Old → New
1 → 0
0 → 1
n → n
2 → 0
0 → 2
Inter-
change-
ability
O/O2215
O/O
O/O617
Part needed for replacement by new part
Part No.DescriptionNo.Page
Parts
Catalog
118
1111517
115
1112127
102
1074763
C2035126C2245126Right Rack - Paper Feed
C2035128C2245128Left Rack - Paper Feed