Ricoh GENERAL Technical Bulletin GEN

Page 1
Technical Bulletin
No.GENERAL-001
Issued on
July 22, 1991
Subject:
Quick Reference Guide
Model( s): Fax 1200L/2800L
Fax90 Fax77/80/85
Classification
Action Required Troubleshooting Retrofit Information Revision of Service Manual Information Only Others
Quick Reference Guid e is deleted in following models in order to re duce the cost. And Quick Reference Guide Holder of Fax 1200L/2800L is also deleted.
FAX T.S. Se ction T.S. Departme nt Manager
H. Motojima
Control No. for Each Area
R.C. 001 Asia -­SAVIN -- LAM -­Europe 001 AT&T -­HCS --
[RC]
Model Code P/N of Q/ G P/N of Q/ G H older Execution Date
[Europe]
Model Code P/N of Q/ G P/N of Q/ G H older Execution Date
H004-20 H048-20 H049-20 H051-20 H053-20 H053-21 H055-20 H055-21 H059-20
H004-40 H004-46 H048-44 H051-42 H051-44 H051-45 H051-91 H053-40 H053-70 H053-44 H053-74 H055-40 H055-70 H055-44 H055-74
H0044611 H0484830 H0494830 H0514348 H0534304
H0554338
H0594301
H0044670
H0484838 H0514316 H0514317 H0514318 H0514343 H0534315
H0534322
H0554343
H0554344
H0044319 R0410500475
H0044139
U1010500018
Execution date of above material change except H004-20/46 depends on the date when the stock of Q/G runs out. We will inform you when it is fixed.
Page 1
Technical Bulletin
No.GENERAL-002
Subject:
Issued on
June 12, 1992
22 pin - Connector interchangeability
M ode l(s):
M odel L Series M odel C Series FAX 82
Classification
Action Required Troubleshooting Retrof it Information Revision of Service Manual Inform a tio n Only Others
The following problem will occur with the 22 pin-connector which has been used between the FCU and NCU in some models.
FAX T.S. Section, T.S. Department Assistant General Manager
H. Motojima
[Cause]
To pr e ve nt the pin fr om bend ing and to improve reliability, the vender has mod ifie d the style of the connector (both holder and header) without a part number change. Ho wever, th ere is no interchangeabilit y between the n ew one and the old one.
[Symptom]
If the old holder is connected with the new header on the FCU and NCU, the contact between them will be incomplete.
Interchangeability of each type is shown below. (See figure A)
Old Holder New Holder
Old
Header
New
Header
OO
XO
After the January. 1991 pr oduction
After the April. 1991 pr oduction
[ Solution]
If the holder is an old one and the header is a new one, the edge of the holder must be cut off when the NCU and/or FCU are replaced in the field. (See figure B)
New Holder
Page 2
Technical Bulletin
No.GENERAL-002
Issued on
June 12, 1992
Subject:
22 pin - Connector interchangeability
[Applicable Models]
Model L Series Model C Series FAX 8 2 When you replace the FCU and/or the NCU in the above models, check the style of the follow-
ing points in advan ce.
a) Edge of the header on the FCU/NCU. b) Edge of the holder at both sides of FCU-NCU harness.
Old Header
Old Holder
[Figure A]
New Header
Cut off
$
$
Old Holder
[Figure B]
2
Page 1/1
Technical Bulletin No. GENERAL-003
SUBJECT: Notice for FCE ROM reinstallation.
PREPARED BY: H.Someya CHECKED BY:
CLASSIFICATION:
Action Required Revision of service manual Troubleshooting Information only
FROM: 2nd T.S. Section
MODEL: IXO ZB PF-2
Retrofit Information Other
Reinstall the ROM on the FCE according to th e followin g pro ceduce.
1. Put the ROM in the FCE mount. Note: The ROM must be slightly loose in the mount.
2. Put the frame on the mount.
DATE:Oct. 25th 1993
Note: The frame must be slightly loo se on the moun t.
3. There are two ways to set the frame.
1) Hold down both sides of the frame with bo th thu mbs. Note: Do not push down on the ROM.
2) Put the tool (P/N: N/A) on the frame.
Hold down both sides of the too l wit h bo th thu mbs.
4. Push down each corner to ensure secure setting
of the frame.
5. Check that each hook is locked comp let ely.
1
3
4
same spaces
Page 1/2
Technical Bulletin No. GENERAL-004
SUBJECT: Black bands/lines on the received cop y
PREPARED BY: H.Yokoyama CHECKED BY:
CLASSIFICATION:
Action Required Revision of service manual Troubleshooting Information only Retrofit Information Other
FROM: 2nd T.S. Section
MODEL: USA only CSO, CFO, CS1/CRO
DATE:
November 11th, 1993
[Problem]
On the received copies, bla ck ban ds or line s may be printed, especially on the right hand side.
[Cause]
Toner or dust is attached to the charge corona wire.
[Modification]
The electric current of the charge coron a will be increased to avoid applying uneren charg to the master which is caused by a dirty corona wire. Because of the increase of the ele ctric curre nt , th e distance betwee n th e grid plate and the coro na wire will be changed to keep the charge on the master belt the same as before modification.
H081 2870 → H081 2854 Eraser Ass’y
H081 5030 → H081 5020 Power pack (CSO/CFO)
H510 5030 H510 5020 Power pack (CRO/CS 1)
<Eraser Ass’y>
The thickness of the cleaning blad e of the cleaner will be changed to incre ase the
cleaning ability (4mm 5mm)
The distance between the gride plate and charg e wire will be cha nged (6mm → 8mm)
<Power pack>
The range and initial value of the VRC (VR for the charg e coro na ) will be change d.
The above modification will ta ke pla ce fro m t he De cemb er 1st prod uction.
Page 2/2
Technical Bulletin No. GENERAL-004
SUBJECT: Black bands/lines on the received cop y
DATE:
November 11th, 1993
[Countermeasure in the field]
The countermeasu re method depends on the CV (Cop y Volu me) of the machine.
If the CV is less than 400 sheets/month
Turn VRC on the power pack to the maximum (Turn the VR clockwise until it stops)
If the CV is more than 400 sheet s/mo nth
Change the Eraser to the modified one and turn VRC on the power pack to the maximum.
Note:The increase in the powe r of VRC may de crease the life time of the master unit, so for
customers whose ACV/month is more than 400 sheets, the Erase r shou ld be chan ge d.
[Request]
The essence of this problem is a dirty cha rge corona wire, so please do the follo wing
When a sales or service person visits a customer (at PM or EM), clea n the charge
corona wire with the built-in cleaner
Advise the customer to clean th e charge corona wire at a certain interval or if the
customer sees black bands/lines on the receive d copy.
Page 1/2
Technical Bulletin No. GENERAL-005
SUBJECT: Black bands/lines on the received cop y
PREPARED BY: H.Yokoyama CHECKED BY:
CLASSIFICATION:
Action Required Revision of service manual Troubleshooting Information only Retrofit Information Other
FROM: 2nd T.S. Section
MODEL: Europe, Asia CSO, CFO, CRO
DATE:
Feb. 3rd, 1994
[Problem]
On the received copies, bla ck ban ds or line s may be printed, especially on the right hand side.
[Cause]
Toner or dust is attached to the charge corona wire.
[Modification]
The electric current of the charge coron a will be increased to avoid applying uneren charg to the master which is caused by a dirty corona wire. Because of the increase of the ele ctric curre nt , th e distance betwee n th e grid plate and the coro na wire will be changed to keep the charge on the master belt the same as before modification.
H081 2870 → H081 2854 Eraser Ass’y
H081 5030 → H081 5020 Power pack (CSO/CFO)
H510 5050 H510 5051 Power pack (CRO)
<Eraser Ass’y>
The thickness of the cleaning blad e of the cleaner will be changed to incre ase the
cleaning ability (4mm 5mm)
The distance between the gride plate and charg e wire will be cha nged (6mm → 8mm)
<Power pack>
The range and initial value of the VRC (VR for the charg e coro na ) will be change d.
The above modification will take pla ce fro m t he Feb. 1st pro du ctio n.
Page 2/2
Technical Bulletin No. GENERAL-005
SUBJECT: Black bands/lines on the received cop y
DATE:
Feb. 3rd, 1994
[Countermeasure in the field]
The countermeasu re method depends on the CV (Cop y Volu me) of the machine.
If the CV is less than 400 sheets/month
Turn VRC on the power pack to the maximum (Turn the VR clockwise until it stops)
If the CV is more than 400 sheet s/mo nth
Change the Eraser to the modified one and turn VRC on the power pack to the maximum.
Note:The increase in the powe r of VRC may de crease the life time of the master unit, so for
customers whose ACV/month is more than 400 sheets, the Erase r shou ld be chan ge d.
[Request]
The essence of this problem is a dirty cha rge corona wire, so please do the follo wing
When a sales or service person visits a customer (at PM or EM), clea n the charge
corona wire with the built-in cleaner
Advise the customer to clean th e charge corona wire at a certain interval or if the
customer sees black bands/lines on the receive d copy.
Magnet
Page 1/1
Technical Bulletin No. GENERAL-006
SUBJECT: CTM modification
DATE:
April, 11th, 1994
PREPARED BY: H.Yokoyama CHECKED BY:
CLASSIFICATION:
Action Required Revision of service manual
FROM: 2nd T.S. Section
MODEL:
CSO, CFO, CS1 Troubleshooting Information only Retrofit Information Other
To avoid toner from being spilt inside the machin e, the toner collection roller of th e CTM will be modified.
<Figure>
Previous
Type A Type B
Brush 4 Magnets Magnet surface
After modification
Magnet
Black lot no. is printed on the carton box.
<Expected arrival period>
Previous Type Type A Type B
’94.1
Red lot no. will be printed on the carton box.
’94.6
’94.8
’94.6
Blank lot no. will be printed on the carton box.
Loading...
+ 19 hidden pages