Ricoh A072 Modification Bulletin
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 1 of 12 ISSUED ON: February 29, ’92
Model NC - X Volt/Hz
Mod i fied Article Parts Catalog
Reason for
P art s cata log correction
Modification
Date of
Modification
Serial Numbe r
All version 1/8
Please correct your p arts catalog as follows: (Marked items ( ) are already corrected o n parts catalog pr inted after May 20 1992.)
Incor rect P/N Cor r ect P/N Descr iption Q’ty Used Index N o. Page Note
A0721226 Inner Cover Ass’y 1 26 9
A0721363 Right Inner Cover Ass’y 1 26 9
A0722725 A0072910 Bushed Roller Chain - 108P 1 3 23
AB013315 AB017112 Gear - 18Z 1 9 23
A0726343 A0726345 Rail AC Discharge Unit 1 30 23
A0302611 A0302661 Upper Registration Guide 1 33 23
AD021034 A0726110 Receptacle Housing - Discharge 3 60 23
A0729510 A0309510 Drum 1 8 25
AD021044 A0723724 Receptacle Housing - PCC 1 21 25
AD021028 A0722005 Receptacle Housing - Charge Corona 1 22 25
36
A0306231 A0726231 Corona Wire Ring 6
A0306335 A0306375 Separation Corona Unit 1 1 27
7
11
25
27
33
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 2 of 12 ISSUED ON: February 29, ’92
All version 2/8
Incorrect Cor rect Description Q’ty Used Index N o. Page Note
AD022136 AD022241 Cover - Front End Block 3 2 27
AD022138 AD022243 Cover - Rear End Block 2 4 27
AD022188 AD022244 Front End Block 3 9 27
AD022137 AD022242 Rear End Block 2 12 27
A0306355 A0726355 DC Discharge Unit - Outer 1 14 27
A0306360 A0726360 AC Discharge Unit - Outer 1 18 27
AD024017 AD024028 Adjusting Screw 1 21 27
AD022148 AD022253 Cover - Rear End Block 1 22 27
AD022147 AD022254 Rear End Block - D. AC Outer 1 23 27
A0726210 A0726215 Transfer Corona Unit 1 26 27
AD022162 AD022257 Cleaner motor Cover 1 27 27
A0306216 A0726216 Holder - Transfer Corona Wire 1 28 27
AD022221 AD022256 Front End Block - Transfer Corona 1 29 27
AD022222 AD022255 Cover - Front End Block 1 30 27
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 3 of 12 ISSUED ON: February 29, ’92
All version 3/8
Incor rect P/N Cor r ect P/N Descr iption Q’ty Used Index N o. Page Note
A0306218 A0726218 Adjusting Plate 1 31 27
A0306217 A0726217 Adjusting Screw 1 32 27
AD022164 AD022258 Cover - Rear End Block 1 34 27
AD022163 AD022259 Rear End Block - Transfer Corona 1 35 27
A0306082 Actuator - Drum HP Sensor 1 20 29 See Fig.1
A0306132 A0729500 Pick-off Pawl 1 6 31
AA143236 AA143274 Stopper - M5 X 3 .5 1 26 31
11070386 Fuse - 1A 1 90 31 See Fig.2
Fig 1
P/N 11070386
Fuse - 1A
P/N A0306082
Actuator - Drum HP Sensor
Fig. 2
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 4 of 12 ISSUED ON: February 29, ’92
All version 4/8
Incor rect P/N Correct P /N Des cripti on Q’ty Used Index N o. Page Note
03140060W Philips Pan Head Screw - M4 X 6 2 123 31 See Fig. 3
A0306470 Front Cover - Transfer Drum Harness 1 91 31 See Fig. 3
A0306230 A0726230 DC Discharge Unit - Inner 1 1 33
AD022132 AD022245 Cover - Front End Block 1 2 33
AD022131 AD022246 Front End Block - Discharge 1 6 33
AD022134 AD022247 Cover - Rear End Block 1 10 33
AD022133 AD022248 Rear End Block 1 12 33
AD022049 AD024029 Adjusting Screw 2 13 33
A0306235 A0726235 AC Discharge Unit - Inner 1 14 33
AD022151 AD022252 Rear End Block - D. AC Inner 1 15 33
AD022152 AD022251 Cover - Rear End Block 1 16 33
AD022149 AD022250 Front End Block - D. AC Inner 1 18 33
A0726095 A0726099 Receptacle - DC Discharge 1 20 33
A0726100 A0726106 Receptacle - AC Discharge 1 21 33
A0726090 A0726091 Receptacle - Transfer Corona 1 22 33
AD022150 AD022249 Cover - Front End Block 1 57 33
P/N 03140060W
Philips Pan Head
Screw - M4 X 6
P/N A0306470
Front Cover - Transfer
Fig. 3
Drum Harness
Fig. 6
P/N A0721860
Cover - Exposure
Lamp Unit
MODIFICATION BULLETIN NO. 1 Page 5 of 12 ISSUED ON: February 29, ’92
All version 5/8
Incor rect P/N Cor r ect P/N Description Q’ty Used Index N o. Page Note
A0306005 Transfer Drum Cleaning Unit 1 * 35
A0301862 Lamp Cover Angle 1 50 37 See Fig. 4
03130050W Philips Pan Head Screw - M3 X 5 1 114 37 See Fig. 4
A0301863 A0721860 Cover - Exposure Lamp Unit 1 2 37 See Fig. 4
AA161059 Guide Rod Cushion 2 40 39 See Fig. 5
07100030W 07010030B Hexagon Nut - M3 1 113 43
A0723006 Black Development Unit Ass’y 1 * 43 See Fig. 6
A0723259 A0723260 Development Rear Plate 1 22 47
Reissued on: October 31, ’92
P/N 03130050W
Philips Pan Head
Screw - M3 X 5
P/N A0301862
Lamp Cover
Angle
Fig. 5
P/N AA161059
Fig. 4
Guide Rod Cushion
P/N A0723006
Black Development Unit Ass’y
Fig. 9
MODIFICATION BULLETIN NO. 1 Page 6 of 12 ISSUED ON: February 29, ’92
All version 6/8
Incor rect P/N Cor r ect P/N Description Q’ty Used Index P/N Page Note
A0303256 Color Development Unit 1 * 47
A0303631 A0303630 Cooling Duct - Cleaning 1 11 49
AD022123 A0723720 Front End Block - PCC 1 22 49
AD022124 A0723721 Front End Block Cover - PCC 1 24 49
AD022125 A0723722 R ear End Block - PCC 1 42 49
AD022126 A0723723 R ear End Block Cover - PCC 1 43 49
AD020023 A0309504 Wire - PCC (10pcs / set) 1 25 49
Reissued on: October 31, ’92
A0303551 Cleaning Unit 1 * 49
AA180007 AA180035 Sleeve - Oil Pump 1 64 51
52095320 Oil End Sensor 1 70 51 See Fig. 7
AA060341 Pressure Spring 2 71 51 See Fig. 8
52154411 Spring Plate 1 72 51 See Fig. 7
54082032 AA143363 Stepped Screw - Guide Rail 8 14 55
A0721095 Left Bracket 1 23 55
A0721094 Right Bracket 1 23 55
A0723706 A0729501 Toner Collection Bottle 1 53 55
AA151701 Seal 1 30 57 See Fig. 9
P/N AA060341
P/N 52095320
Oil End Sensor
Pressure
Spring
P/N 52154411
Spring Pl ate
P/N AA151701
Seal
P/N AA060341
Pressure
Spring
Fig. 7
Fig.8
Reissued on: October 31, ’92
P/N 09514008W
Philips Screw with
Flat Washer - M4
P/N 03140080M
Philips Pan Head
Screw - M4 X 8
P/N A0301111 (Accessory)
Door Switch Fixing Tool
• P/N A0078571 (Accessory)
Editing Sheet - LT/LDG
• P/N A0078572 (Accessory)
Editing Sheet - A3/A4
MODIFICATION BULLETIN NO. 1 Page 7 of 12 ISSUED ON: February 29, ’92
All version 7/8
Incor rect P/N Correct P/N De script ion Q’ty Used Index N o. Page Note
11050287 Wire Saddle 1 34 59 See Fig. 10
11050159 03140080M PCB Stud 6 102 59 See Fig. 10
09514008W 03140080M Philips S crew With Flat Washe r - M 4 2 105 59 See Fig. 10
11070384 Fuse - 0.63A 1 156 69
11033020 Connector - 20p 3
11031806 Connector - 12P 1 106 71
A0729101 DG Gauge Black - 0.775/0.925 1 1 83
A0078571 Editing Sheet - LT / LDG 1
A0078572 Editing Sheet - A4 / A3 1 See Fig. 11 / Except A072 - 12, -16, -17
A0723451 Color Toner Supply Unit 1
A0723453 Color Toner Supply Unit 1 Except A072 - 17
A0301111 Door Switch Fixing Tool 1 53 9 See Fig. 11
P/N 11050287
Wire Saddle
P/N 11050159
PCB Stud
P/N 03140080M
Philips Pan Head
Screw - M4 X 8
P/N 11050159
PCB Stud
Fig. 10
107
107
52 9
*45
P/N 03140080M
Philips Pan Head
Screw - M4 X 8
69
71
See Fig. 11 / A072 - 12, -16, -17 only
A072 - 17 only
Fig. 11
Reissued on: October 31, ’92
P/N A0304060
Fusing Cover
MODIFICATION BULLETIN NO. 1 Page 8 of 12 ISSUED ON: February 29, ’92
All version 8/8
Incor rect P/N Correct P/N Description Q’ty Used Index N o. Page Note
A0726492 Solenoid Cover 1 59 33 See Fig. 12 / A072-22, -25, -26 -27 only
09514006W Philips S crew With Flat Washe r M4 X 6 2 60 33 See Fig. 12 / A072-22, -25, -26 -27 only
A0304061 A0304060 Fusing Cover 1 5 51 See Fig. 13 / Except A072-17, -19
AA010105 AA000105 Decal - Silicone Oil 81-28 1 69 51 See Fig. 14 / A072-17, -19 only
AA001071 Grip Decal - Fusing Cover 1 73 51 See Fig. 13 / Except A072-17, -19
P/N 09514006W
Philips Screw with
Flat Washer M4 X 6
P/N A0726492
Solenoid Cover
Fig.12
P/N AA001071
P/N AA001071
Grip Decal -
Grip Decal Fusing Cover
Fusing Cover
Fig. 13
Fig. 14
P/N A0304061
Fusing Cover
P/N AA000105
P/N AA000105
Decal - Silicon Oil
Decal - Silicon Oil
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 9 of 12 ISSUED ON: February 29, ’92
Ricoh version only
Incor rect P/N Correct P/N D es cription Q’ty Used Inde x No. Page Note
A0721397 A0721398 Decal - U Code 1
A0721376 A0721377 Decal - Misfeed Removal 1
A0721380 A0721381 Decal - Adding Toner 1
A0721319 A0721320 Shielding Plate ADF 1 50 9 A072-17, -19 only
AX050046 AX050056 Stepped Motor - DC24V 2.4A 1 1 21 A072-27only
A0723224 Black Toner Supply Unit (EU) 1 30 43 A072-19, -27, -29 only
A0723221 Black Toner Supply Unit (NA) 1 30 43 A072-17 only
A0725310 A0725601 DC Main Harness 1
A0725181 A0725187 Process Control PCB 1
AZ320053 AZ320063 Power Supply Unit - Transfer 1 7 59 A072-27 only
A0305533 A0305433 Power Supply Cord - Taiwan 1 32 59 A072-19 only
18
21
19
16
20
17
1
*
4
*
81
81
81
59
77
59
71
9
9
9
A072-27, -29 only
A072-17, -29 only
11050009 11500009 Power Supply Cord - 220 / 240V 1 112 59 A072-27, -29 only
16020894 16020946 Noise Filter RG - 208F 1 121 59 A072-27, -29 only
A0725186 A0725189 Microcomputer - AC Control 1 2 71 A072-17, -19 -29 only
A0721368 A0721369 Decal - Operation - A4 1 9 81 A072-27, -29 only
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 10 of 12 ISSUED ON: February 29, ’92
Gestetner / Nashua version only
Incor rect P/N Cor r ect P/N D escription Q’ t y Used Index No. Page Note
A0727007 A0727077 Small Cap 2 2 9
A0727122 K ey T op - 16 X 24 - RED 2 22 13
A0727134 K ey T op Small - IVORY 4 23 13
A0061352 54241472 Key Counter Cover 1 20 15 A072-22, -25 only
AX050046 AX050056 Stepped Motor - DC24V 2.4A 1 1 21
A0304462 A0724462 Upper Exit Guide 1 4 53
A0725310 A0725601 DC Main Harness 1
A0725181 A0725187 Process Control PCB 1
AZ320053 AZ320063 Power Supply Unit - Transfer 1 7 59 A072-22, -25 only
11050009 11500009 Power Supply Cord - 220 / 240V 1 112 59 A072-22, -25 only
16020894 16020946 Noise Filter RG - 208F 1 121 59 A072-22, -25 only
12041545 12042185 Main Switch 1 122 59
A0725186 A0725189 Microcomputer - AC Control 1 2 71 A072-12, -16 only
A0773690 A0776390 Decal - Key Top Cover 1 29 81 A072-12, -22 only
1
*
4
*
59
77
59
71
A072-22, -25 only
A072-12, -16 only
Reissued on: October 31, ’92
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 1 Page 11 of 12 ISSUED ON: February 29, ’92
Infotec version only
Incor rect P/N Correct P / N De script ion Q’ty Used Index No. Page Note
A0727095 A0307177 R eceiving Tray 1 1 9
A0721500 A0727400 10 Key Ass’y 1 13 13
A0061352 54241472 Key Counter Cover 1 20 15
AX050046 AX050056 Stepped Motor - DC24V 2.4A 1 1 21
A0725310 A0725601 DC Main Harness 1
AZ320053 AZ320063 Power Supply Unit - Transfer 1 7 59
11050009 11500009 Power Supply Cord - 220 / 240V 1 112 59
16020894 16020946 Noise Filter RG - 208F 1 121 59
12041545 12042186 Main Switch 1 122 59
1
*
59
77
Reissued on: October 31, ’92
MODIFICATION BULLETIN NO. 1 Page 12 of 12 ISSUED ON: February 29, ’92
MODEL NAME
GESTE TNER 2735 115/60 CANADA A072-12
NASHUA C302 115/60 CANADA A072-16
RICOH NC305 115/60 USA, CANADA A072-17
RICOH NC305 110/60 TAIWAN A072-19
GESTE TNER 2735 220, 230, 240/50 EUROPE, etc. A072-22
NASHUA C302 220, 230, 240/50 EUROPE , etc. A072-25
INFOTEC 7130 220, 230, 240/50 EUROPE A072-26
RICOH NC305 220, 230, 240/50 EUROPE, etc. A072-27
RICOH NC305 220/50 A SIA A072-29
V/Hz DESTINATION CODE SERIAL NUMBER
MODIFICATION BULLETIN NO. 3 Page 1 of 2 ISSUED ON: May 31, ’92
Model
Modified Article
Reason for
Modification
NC - X
Cover - Upper Relay Roller
To improve the reliability of pick-off sensor
Volt/Hz
To improve the reliability of pick-off sensor, a black mylar is added on the cover-upper relay rolle r (A0302658).
Old P/N New P/N Description Q’ty Used
------- A0726344
Shielding Mylar
0 → 1
E
D
C
Index No. Page
# 63 (New) 23
New P/N A0726344
A
Shielding Mylar
Parts Catalog
* The edge "A" of the mylar is aligned with edge "B" of
cover-upper relay roller.
* * The distance "C" (between the edge "D" of
cover-upper relay roller and the edge "E" of the mylar)
is 96 ± 2mm.
Date of
Modification
Serial Number
B
P/N A0302658
Cover - upper relay roller
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 3 Page 2 of 2 ISSUED ON: May 31, ’92
MODEL NAME
GESTETNER 2735 115/60 CANADA A072-12 400204XXXX
NASHUA C302 115/60 CANADA A072-16 400204XXXX
RICOH NC305 115/60 USA, CANADA A072-17 A293204XXXX
RICOH NC305 110/60 TAIWAN A072-19 A293204XXXX
GESTETNER 2735 220, 230, 240/50 EUROPE, etc. A072-22 4012030001
NASHUA C302 220, 230, 240/50 EUROPE, etc. A072-25 4012030051
INFOTEC 7130 220, 230, 240/50 EUROPE A072-26 3C1042XXXX
RICOH NC305 220, 230, 240/50 EUROPE, etc. A072-27 A2932030001
RICOH NC305 220/50 ASIA A072-29 A2932030111
V/Hz DESTINATION CODE SERIAL NUMBER
MODIFICATION BULLETIN NO. 4 Page 1 of 2 ISSUED ON: May 31, ’92
Model
Modified Article
Reason for
Modification
Old P/N New P/N Description Interchangeability Q’ty Used
AA150161 A0721775
NC - X
Lens Shielding Mylar - Front
To improve the durability of the mylar
Lens Shielding Mylar - Front
X/O
To improve the durability of the front lens shielding Mylar, its size has been changed.
* Distance "A" has been increased
from 54.5mm to 58mm.
1 → 1
Volt/Hz
Index No. Page
4 39
Date of
Modification
Parts Catalog
Serial Number
Lens Shielding Mylar - Front
A
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 4 Page 2 of 2 ISSUED ON: May 31, ’92
MODEL NAME
GESTETNER 2735 115/60 CANADA A072-12 400205XXXX
NASHUA C302 115/60 CANADA A072-16 400205XXXX
RICOH NC305 115/60 USA, CANADA A072-17 A293204XXXX
RICOH NC305 110/60 TAIWAN A072-19 A293205XXXX
GESTETNER 2735 220, 230, 240/50 EUROPE, etc. A072-22 4012030001
NASHUA C302 220, 230, 240/50 EUROPE, etc. A072-25 4012030051
INFOTEC 7130 220, 230, 240/50 EUROPE A072-26 3C1042XXXX
RICOH NC305 220, 230, 240/50 EUROPE, etc. A072-27 A2932030001
RICOH NC305 220/50 ASIA A072-29 A2932030111
V/Hz DESTINATION CODE SERIAL NUMBER
MODIFICATION BULLETIN NO. 5 Page 1 of 2 ISSUED ON: May 31, ’92
Model
Modified Article
Reason for
Modification
NC - X
Parts Catalog
Parts catalog correction
Please correct your parts catalog as follows:
Incorrect P/N Correct P/N Description Q’ty Used
A0306190 A0306181
Transfer Mylar
1 → 1
Volt/Hz
Parts catalog
Index No. Page
31 33
Date of
Modification
Serial Number
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 5 Page 2 of 2 ISSUED ON: May 31, ’92
MODEL NAME
GESTETNER 2735 115/60 CANADA A072-12
NASHUA C302 115/60 CANADA A072-16
RICOH NC305 115/60 USA, CANADA A072-17
RICOH NC305 110/60 TAIWAN A072-19
GESTETNER 2735 220, 230, 240/50 EUROPE, etc. A072-22
NASHUA C302 220, 230, 240/50 EUROPE, etc. A072-25
INFOTEC 7130 220, 230, 240/50 EUROPE A072-26
RICOH NC305 220, 230, 240/50 EUROPE, etc. A072-27
RICOH NC305 220/50 ASIA A072-29
V/Hz DESTINATION CODE SERIAL NUMBER
MODIFICATION BULLETIN NO. 6 Page 1 of 2 ISSUED ON: June 15, ’92
Model NC-X Volt/Hz
Modified Article IC - NJU4051BM (on Process Control Board)
Reason for
Due to vendor change
Modification
Due to vendor change, part number of the following part has been changed.
Old P/N New P/N Description Interchangeability Q’ty Used
14080718 14072348
IC-NJU4051BM
→IC-TC4051BF
O/O 1 → 1 127 71
Date of
Modification
Parts Catalog
Index No. Page
Serial Number
T. Ito, Manager
Copier Technical Support
MODIFICATION BULLETIN NO. 6 Page 2 of 2 ISSUED ON: June 15, ’92
MODEL NAME
GESTETNER 2735 115/60 CANADA A072-12
NASHUA C302 115/60 CANADA A072-16
RICOH NC305 115/60 USA, CANADA A072-17
RICOH NC305 110/60 TAIWAN A072-19
GESTETNER 2735 220, 230, 240/50 EUROPE, etc. A072-22
NASHUA C302 220, 230, 240/50 EUROPE, etc. A072-25
INFOTEC 7130 220, 230, 240/50 EUROPE A072-26
RICOH NC305 220, 230, 240/50 EUROPE, etc. A072-27
RICOH NC305 220/50 ASIA A072-29
V/Hz DESTINATION CODE SERIAL NUMBER
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