Ricoh FAX2500L Technical Bulletin FX2500

[B]

Technical Bulletin No. CRO-001

SUBJECT: Service Manual Correction

PREPARED BY: A. Ishiyama
CHECKED BY:

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

This information includ es corre ctions to the CRO service manual.

FROM: 1st T.S. Section

MODEL: CRO Europe and Asia
Version

DATE:

October 25, 1993

1. Section 3.2.4. (Page 3-6)

The item 4 has been changed, because the CRO does not have the monitor speaker.

4. Take off the rear cover [A] and
disconnect the monito r sp ea ker [B ].

‘

4. Take off the rear cover [A].

[A]

[A]

Technical Bulletin No. CRO-002

SUBJECT: Service Manual Crrection

PREPARED BY: H. Yokoyama
CHECKED BY:

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

The attached page is addition al inf orma tion for the service manual.

FROM: 2nd T.S. Section

MODEL:
CRO Europe and Asia version.

DATE: Nov. 2, 1993
Reissued Jan.10. 19994

2-1-2. NCU

C

1. Signal and Jumper Settings

The following table shows the jumper po sitio ns fo r each country, and the status of the relay
control signals (CN3-A7, B7 and A8 ). The coun try is selected by the Country Code for NCU
Parameters (NCU Parameter 00 ; use Function 96 ).

Standby Mode

CN-3 CN-3 TB1 TB2 TB3 TB5 TB4 TB7 TB8 TP2-3

Country A7 B7 A8 A7 B7 A8

Germany L L L H H L O S A S O S S
U.K. L H L H H L O S A S O S S
Italy H H L H H L O S B S O S S
Austria H H L L L L O S A S O S S
Belgium H H L L L L O S A S O S S
Denmark H H L L L L O S A O O S S
Finland H H L H H L O S A S O S S
Ireland HHLLLHOS C SOSS
Norway L H L L L H O S A S O S S
Sweden H L L L L L O S A S O S S
Switzerland L H L L L L S S A O S S O
Portugal H H L L L L O S A S O S S
Holland H H L L L H O S A S O S S
Spain H H L L L L O S B S O S S
Israel H H L H H L O S A S O S S
Asia L H L H H L O S A S O S S
Hong Kong L H L H H L O S A S O S S
S. Africa HHLHHLOS C SOSS
Australia L H L H H L O S A S O O S
New

Zealand
Singapore H H L H H L O S A S O S S
Malaysia L H L H H L O S A S O S S
Turkey

(U.K.)
Keys H = High; L = Low O = Open; S = Short.

LHLHHLOSASOSS

LHLHHLOO A SOSS

In Turkey, use the “U.K.” country code, NCU parameters manually.

After Ring

Detection

Jumper Tips and Wires

For “A”, “B” and “C” in the TB3/TB5 columns, refer to
the following diagrams.

TB3 TB5

A

TB3 TB5

B

TB3 TB5

Base

Technical Bulletin No. CRO-003

SUBJECT: Paper not lifted up

DATE: Dec. 10. 1993

PREPARED BY: H. Yokoyama
CHECKED BY: FROM: 2nd T.S. Section

CLASSIFICATION:

MODEL: CRO
Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

[Problem]

The bottom plate of the A4 (letter) size standard cassette is not lifted up eve n if the cassette is
inserted into the machine.

[Reason]

When installing the cassette, the slider [A] should
contact the Boss [B ] on t he base .
However [A] does not contact [B], because of the warp of
the cassette and the base plate of the machien.

Machine

Cassette

[A]

[Modification]

[B]

Temporary: Insert a washer (t=0.5mm, P/N: 07010030B) between the Boss [B] and the

Base plate of the machine
<Effective Date>

• H510-20: R8831000001~ • H5 10-30: 4671130001~

• H510-21: 6403100136 ~ • H510-40: U2731100001~

• H510-22: L4231000309~ • H510-51 : A1431000001~

• H510-27: 0831000146 ~ • H510-60: 6353110001~

Permanent: The heig ht of the Boss [B] (P/N: H081 35 61 ) has be en chan ge d fro m 6 mm to

7mm.
<Effective Date>

• From December 1st production

[Countermeasure]

• Install a plastic cap (which packed with this RTB) on to the Boss.

Use a glue for plastic.

or

• Insert a washer(P/N: 07010030B) or an M4 E-ring (P/N: 07200040E) between the Boss and

the Base Plate.

Technical Bulletin No. CRO-004

SUBJECT: Paper not lifted up

PREPARED BY: A. Ishiyama
CHECKED BY:

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

To improve image quality, the OBM (mast er un it) has bee n mod ifie d, as shown below.

FROM: 1st T.S. Section

MODEL: CRO/ CS1

DATE:

Dec. 15. 1993

Paper path

When the paper passes over the maste r belt , to ne r sometimes does not transfer to the pape r
properly.

Therefore, the paper path inside the master has been changed, and the paper makes be tter
contact with the master.

This has been executed from October production.

Paper path

Technical Bulletin No. CRO-005

SUBJECT: Hot Roller Down

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:

CRO(Europe & Asia)

DATE:

Apr, 11th , 1994

<Problem>

Auto service call (Hot Roller Down) may occur during sta nd by mod e.

<Cause>

TRC (Triac)1 and/or 2 on the PSU may be damaged (short ed ) in the field by severe impulse
noise or power supply drop out. (The TRCs switch the ac power supply to the fusing lamp
on/off.)
This may cause continuou s power supply to the fusing lamp an d this will genarate the above
auto service call condition.
(There are two safety circuits for the power supply to the fusing lamp . The safety circuits cut the
power supply to the fusing lamp.)

<Modification>

Change the capacitors (C8 and C9) to th e surg e killers (10 0Ω +0.01µF) to increase the safety
margin against unstable ac power conditions in the field.
This will be effective from Feb. 1994 production.

Europe: H51 0 56 01B → C
Asia: H510 5602B → C

Technical Bulletin No. CRO-006

SUBJECT: Rx problem from PC Fax modems

"Paper Size Error" indication

PREPARED BY: H.Yokoyama
CHECKED BY: S.Hamano

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

FROM: 2nd T.S. Section

MODEL:

CRO (Europe only)

DATE:

May 26th, 1994.

<Rx problem from PC Fax modems>

-Problem­CRO may not receive messages from PC Fax modems.

-Cause­Some PC Fax modems can not recognize th e extended DIS frame (6 bytes) which was recently
recommended by CCITT.

-Action­Ask your customer to request th e sen de r (PC Fa x modem o wne r) to con tact a service engineer
to modify their software to solve th e pro ble m.
However we have prepared a coun te rmea sure ROM for this problem. This RO M should be
used only when the problem is not solved even if the sen der co nt acts the PC Fax board maker.
When this ROM is used, the DIS fra me is f ixed at 4 byt es so that the Fine Resolution
(8 X 15.4 l/mm) will not be used for transmittion.

<"Paper Size Error" indication>

-Problem­The machine may display "Pape r Size Erro r" in the following conditions.

⋅ Machine Software : H5107130C, D or E
⋅ Printer Firmware : 930801 or 930319

-Cause­Software of the machin e

-Action­We have prepared a counterme asu re ROM fo r this problem.

Technical Bulletin No. CRO-006

SUBJECT: Rx problem from PC Fax modems

"Paper Size Error" indication

There are two kinds of problem for the CRO, so the following is a summary of the
countermeasure ROMs.

Checksum

EB51 H5107130E 24 DEC. ’93 Norma l ma ss prod uction

E64F Same as above PC Fax problem

E387 Same as above "Paper Size Error"

E305 Same as above PC Fax problem and

Indication on the System

Parameter List

ROM

problem

"Paper Size Error"
problem

DATE:

May 26th, 1994.

Contents

The solution for the "Paper Size Error" indication problem will be introduced into the production
machines from Septembe r prod uction. (This is not fixed yet.)

Technical Bulletin No. CRO-007

SUBJECT: Rx problem from PC Fax modems

"Paper Size Error" indication

PREPARED BY: H.Yokoyama
CHECKED BY: S.Hamano

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

FROM: 2nd T.S. Section

MODEL:
CRO (Asia only)

DATE:

July, 30, 1994.

<Rx problem from PC Fax modems>

-Problem­CRO may not receive messages from PC Fax modems.

-Cause­Some PC Fax modems can not recognize th e extended DIS frame (6 bytes) which was recently
recommended by CCITT.

-Action­Ask your customer to request th e sen de r (PC Fa x modem o wne r) to con tact a service engineer
to modify their software to solve th e pro ble m.
However we have prepared a coun te rmea sure ROM for this problem. This RO M should be
used only when the problem is not solved even if the sen der co nt acts the PC Fax board maker.
When this ROM is used, the DIS fra me is f ixed at 4 byt es so that the Fine Resolution
(8 X 15.4 l/mm) will not be used for transmittion.

<"Paper Size Error" indication>

-Problem­The machine may display "Pape r Size Erro r" in the following conditions.

⋅ Machine Software : H5107132C, D or E
⋅ Printer Firmware : 930801 or 930319

-Cause­Software of the machin e

-Action­We have prepared a counterme asu re ROM fo r this problem.
Please contact us if this prob lem happ en ed.

Technical Bulletin No. CRO-008

SUBJECT: Rx problem from PC Fax modems

"Paper Size Error" indication

PREPARED BY: H.Yokoyama
CHECKED BY: S.Hamano

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

FROM: 2nd T.S. Section

MODEL:
CRO (USA only)

DATE:

July, 30, 1994.

<Rx problem from PC Fax modems>

-Problem­CRO may not receive messages from PC Fax modems.

-Cause­Some PC Fax modems can not recognize th e extended DIS frame (6 bytes) which was recently
recommended by CCITT.

-Action­Ask your customer to request th e sen de r (PC Fa x modem o wne r) to con tact a service engineer
to modify their software to solve th e pro ble m.
However we have prepared a coun te rmea sure ROM for this problem. This RO M should be
used only when the problem is not solved even if the sen der co nt acts the PC Fax board maker.
When this ROM is used, the DIS fra me is f ixed at 4 byt es so that the Fine Resolution
(8 X 15.4 l/mm) will not be used for transmittion.
Please contact us if this prob lem happ en ed.

<"Paper Size Error" indication>

-Problem­The machine may display "Pape r Size Erro r" in the following conditions.

⋅ Machine Software : CS1: H5117140 E, F or G
CRO: H5107140 D, E or F
⋅ Printer Firmware : 930801 or 930319

-Cause­Software of the machin e

-Action­Use the following ROMs if this problem happened.

CS1: H5117140H
CRO: H5107 140G

The above ROMs will be used for massproduct ion from July production.

Technical Bulletin No. CRO-009

SUBJECT: Printing Problem

PREPARED BY: Y.Okunishi
CHECKED BY: S.Hamano

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

[Problem]

Intermittent resideual image on receptions and reports when the unit has a PIF60 installed.
See below.

FROM: 2nd T.S. Section

MODEL:
CS1 America version
CRO America and Europ e
version

DATE:

July, 30th, 1994

[Cause]

Imcomplete switching at the clock to the fax and report page memory.
The clock to the printer page memory may be mixed with the clock to the fax and report page
memory sometimes.

[Countermeasu re]

The following ROMs will be changed.
<America>

H5117140G → H Programmed ROM - CS1 (From July production)
H5107140F → G Programmed ROM - CRO (From July production)

<Europe>

H5107130E → F Programmed ROM - EUR -CRO (From Aug. production)
H5107133B → C Programmed ROM - FRN -CRO (From Aug. production)

Technical Bulletin No. CRO-010

SUBJECT: New CRO Information

PREPARED BY: M. Tasaka
CHECKED BY:

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

The New CRO will be launched from Sept. ’94 prod uct ion .
Please find the attached she et s which are described the additional information and the

difference of the parts numbers for the old CRO prod uct .

FROM: Over Sea T.S. Section

MODEL:
New CRO

DATE:

Aug 30th, 1994

FAX 2500L/2600L/3500L
SERVICE MANUAL

Throughout this manual, the machin es are re­ferrend to as follows:
CRO: FAX 2500L
CS1: FAX3500L
New CRO: FAX2600L

Additional In formation for New CRO

The new CRO is a successor to the CRO. Theref ore, most features of the new CRO are the
same as the old CRO.
The differences betwe en the new CRO and old CRO are listed below.

1. Hardware

Items New CRO Old CRO

1.1 Specification
*Memory Capacity
*Paper Size

2.1.1 FCU
*SAF Memory Battery back-up(1H) No battery back-up

2. Software

Almost same as the CRO, excep t th e following

256 Kbytes

Letter , Legal

128 Kbytes

Letter

-The Direct Number Entry feature is available by pressin g the quick dial key(8 ).
This feature is programmed in the quick dia l key, as a de fault setting.

Part Number Information for FAX2600L Parts Catalo g

Item New CRO CRO

1. Cassette H081 3350 H081 3355 1-13- 8

2. Paper Size Detector Pin-LG H081 3388 — 1-13-28

3. PCB - FCU H081 6064 H510 6110 1- 5-49

4. Operators Manual H081 4444 H510 4300 1- 3- *

5. Op-Port ass’y H081 4725 H510 4200 1- 3-11

6. Standard Pin H081 3409 — 1-11-78

7. Film - Regist Guide Rail - Left H081 3521 — 1-13-17

8. Connector - Cover H081 3558 — 1-11-82

9. Quick Dial List: NA H081 4728 H510 4255 1- 3- 2

Parts Catalog Index

Page 1/2

Technical Bulletin No. GENERAL-004

SUBJECT: Black bands/lines on the receive d 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 clean ing blad e of the cleaner will be changed to incre ase the

cleaning ability (4mm → 5mm)

• The distance between the gride pla te and charg e wire will be cha ng ed (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 receive d cop y

DATE:

November 11th, 1993

[Countermeasure in the field]

The countermeasu re method depends on the CV (Cop y Volume) 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 sh ould be change 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), clean the charge

corona wire with the built-in cleaner

• Advise the customer to clea n th e charge corona wire at a certain interval or if the

customer sees black bands/lines on the received copy.

Page 1/2

Technical Bulletin No. GENERAL-005

SUBJECT: Black bands/lines on the receive d 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 clean ing blad e of the cleaner will be changed to incre ase the

cleaning ability (4mm → 5mm)

• The distance between the gride pla te and charg e wire will be cha ng ed (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 receive d cop y

DATE:

Feb. 3rd, 1994

[Countermeasure in the field]

The countermeasu re method depends on the CV (Cop y Volume) 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 sh ould be change 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), clean the charge

corona wire with the built-in cleaner

• Advise the customer to clea n th e charge corona wire at a certain interval or if the

customer sees black bands/lines on the received copy.

Page 1/1

Technical Bulletin No. GENERAL-008

SUBJECT: Replacing th e toner cassette

PREPARED BY:H. Yokoyama
CHECKED BY:

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

The instruction of the operator’s manual for replacing the toner cassette (CTM) is wrong.
We will insert the errata sheet to the operator’s manual.

Wrong: 1. Switch off the machine.
Correct: Keep the power switch on whe n replacing the toner cassette.

FROM: 2nd T.S. Section

MODEL:
CSO, CFO, CRO, CS1

DATE:

April, 11th, 1994

Page 1/1

Technical Bulletin No. GENERAL-009

SUBJECT: Vertical Black Lines

PREPARED BY: H.Yokoyama
CHECKED BY: S.Hamano

CLASSIFICATION:

Action Required Revision of service manual
Troubleshooting Information only
Retrofit Information Other

[Problem]
Vertical black lines appear on the printed image.

[Cause]

The toner may stick on the Hot Roller, Fusing Stripper, Thermisto r, and Thermostat and this
toner may damage the surf ace of th e Hot Roller. Then, during copying toner is transferred by
the scratched part of the roller to cause vertical bla ck lines on the print ed image .

FROM: 2nd T.S. Section

MODEL:
CSO, CFO, CRO, CS1

DATE:

Jury. 30, 1994

[Countermeasu re]

The material of the surface of the Hot Roller ha s bee n cha nged to pre ven t th e tone r from
sticking on the Roller by the following modification

H0812100D → E

Because of the ab ove mo dif ication, the vender has been changed.

[Effective S/N]

H081-24, 40, 46, 51, 54, 59, 60: Oct., 1993 ~
H510-20: R8831000609 ~
21, 22, 27, 30, 40, 51, 59, 60: Nov., 1993 ~
H082-20, 23, 30, 40, 51 , 59 , 60 : Nov. , 19 93 ~
H511-20, 21, 22, 27: Nov. , 19 93 ~

[Action]

Clean the Fusing Stripper, The rmisto r and Thermo stat and take out the tone r from them when
visit the customer.