Ricoh FAX2500L Technical Bulletin FX4500

Technical Bulletin No. CFO-001

SUBJECT: Service Manual Correction

PREPARED BY: Mihara
CHECKED BY:

CLASSIFICATION:

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

The fo llowing are corrections for the CFO service manual.

- Service Manual for G3 -

1. Section 1. 1. Specifications
Maximum Scan Width

256mm [10.1 ins] → 296mm [11.7 ins]

2. Section 4. 2. Bit Switches (Europe only)

FROM: FAX T.S. Section

DATE:

Sep. 21st, 1992

MODEL: CFO

Bitswitch 05 bit 6.7

Bit 76 Metho d

10 Not used → Ground Start

3. Section 6. 2. Error Code s

Additional Codes

Code Meaning Suggested Causel Action

0-30 No response to NSS(A)

when using AI short
protocol

5-00 DCR failure (RX) Replace the FCU

1. Check the other terminal

2. Replace the FCU

Technical Bulletin No. CFO-001

SUBJECT: Service Manual Correction

DATE:

Sep. 21st, 1992

- Service Manual for the ISDN G4 kit -

1. Section 2. 3. Dedicated Transmission Paramet ers.

• Byte 5 is not used

• Byte 5 (Data rate) → Byte 6 (Data rate)

• Byte 6 (Link modulus) → Byte 7 (Link m odulus)

• Byte 7 (Layer 3 protocol, Packet modulus) → Byte 8 (Layer 3 protocol, Packet modulus)

2. Section 3. 1. Error Code s

Additional codes for ISDN

Code Meaning Suggested cause/Action

3-00 CIG4 reset

CIG4 did not send

• Replace the CIG4 or FCU

• Check the ISDN line

response to FCU

3-10 Disconnect during

ISDN G3 communication

• Check the other terminal

• Check the ISDN line

• The other party dialled the wrong number

3-11 Disconnect during

ISDN G4 communication

3-20 A’CSA’ Signal was received

during ISDN G4

• Check the other terminal

• Check the ISDN line

• Check the other terminal

• Check the ISDN line

communication

3-21 A’CSA’ Signal was sent out

• The stop key was pressed
after pressing the stop key
was pressed during ISDN G4
communication

3-30 Mism atched specific ations

• Check the specifications of the other terminal
(rx capability)

Technical Bulletin No. CFO-002

SUBJECT: Service manual correction No.2

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

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

The fo llowing are corrections for the CFO service manual.

FROM: FAX T.S. Sec tion

MODEL: CFO

DATE:

November 11, 1992

— Service manual for G3 —

1. Section 2.3.2. NCU. (Europe only)
TB 10 Ä TB1

TB 11 Ä TB2
TP 2-TP 3 Ä TP1-TP2

2. Section 4.3. NCU parameters
Address 3F2 Modem Tx level on the ISDN.

This c a nnot be chan ged by Function 09 (parameter 20) (Parameter 20 is not used.)

3. Section 4.5. Servoce RAM ad dres s
Address 00014A (Service switch 0A)

Bit 2: This should be inch - to - mm conversion
Bit 3: This should be inch - to - mm con version

— Service Manual for G4 —

1. Section 2. 2.
Bit SW11: Action in reply to a link release request.

bit 0 USA: There is no need to set this to 1. keep it at 0.
Bit SW17: Fallback from ISDN G4 to ISDN G3.

bit 7: 0: Fallback occurs on receipt of any of the following CPS codes
UK - # 3, 63, 65, and 88

Germany - #53
Other - # 3, 65, and 88.

Technical Bulletin No. CFO-003

SUBJECT: Hard Disk Trouble

PREPARED BY: N. MIHARA
CHECKED BY:

CLASSIFICATION:

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

FROM: FAX T.S. Sec tion

MODEL: AII (FAX [phone])
K105, CFO

DATE:

January 7th, 1992

— Problem —

After replacing the HDIF board, the LCD may show "0%" instead of "100%" in the memo ry
space field.

— Reason —

If the bracket (A) is bent, the pins of CN2 on the HDIF board may touch the bracket (B), then
the HDIF board will be broken.

— Countermeasure —

• When replacing the HDIF board, make sure that the bracket (A) is not bent, and the pins of

CN2 on the HDIF board do no t touch the bracket (B).

• For the CFO, when replacing the ROM on the HDIF board at installation, replace the ROM

after removing the PSU in accordance with the installation manual. Do not remove the HDIF
board.

Bracket (A)

HDIF

Pins of CN2

Bracket (B)

Technical Bulletin No. CFO-004

SUBJECT: NCU parameter setting for UK

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

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

When installing the above model in UK, change the NCU parpameter in accordance with the
PTT requirement as follows .

1. Make sure that the country codes for NCU parameter and bitswitch are for UK setting.

2. Change the RAM addresses as follows.

FROM: FAX T.S. Sec tion

MODEL: CFO

DATE:

Janualy 14th, 1993

(PTT requirement)

Address 0003B4 = 32(H) → 28(H )
Address 000399 = 43(H) → 42(H)
Address 0003B8 = 02(H) → 03(H )

The above correction will be applied into the software from the 1st productions of March ’93.

Technical Bulletin No. CFO-006

SUBJECT: Installation of CFO 20M hard disk option in Sweden

DATE:

April 15th, 1993

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

FROM: FAX T.S. Sec tion

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

At installation in Sweden, the following parts have to be replaced to meet the Swedish safety
regulations.

* Replacement parts

1. Inlet filter (H044 8202B) x 1

2. Fuse (215 series 250V/ 2A) x 1
(These parts should be provided to REBV from Ricoh Tokyo, not thro u gh SPC.)

Procedure

1. Remove the hard disk cover (screw: M3 x 4)

2. Replace the inlet filter (Screw: M3 x 2, M4 x 1).

Brown
Wire

Inlet filter

AC SW

Blue wire

Twist the wires more
than th r ee ti mes.

Gree n/ ye llow wire

Technical Bulletin No. CFO-006

SUBJECT: Installation of CFO 20M hard disk option in Sweden

3. Replace the fuse on the PSU of the hard disk.

Fuse

4. Reassemble the hard disk unit.

DATE:

April 15th, 1993

Technical Bulletin No. CFO-007

SUBJECT: Scratch on the OPU

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

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

FROM: FAX T.S. Sec tion

Problem

The OPU may be damaged when using the machine, as show n
below. However, there is no problem on the printed image.

Cause

1. Both sides of the development roller may touch the metal
blade on the development roller. By this, the shaved
corpuscles may get in the space between the OPU belt and
the development roller, the both sides of the OPU belt may be
damaged.

DATE:

April 15th, 1993

MODEL: CFO

Scratch

OPU guide

2. The position of the OPU guide may be changed for some
reason, then the OPU belt may touch the plastic pins on
the develpment unit.

Action

1. If the above problem occurs, do not replace the OPU, because, there will be no problem on
the printed image, in the lifetime of the OPU.

2. Do not adjust and change the position of the OPU guide.

Note

Do not touch the sorface of the OPU belt and not clean with alcohol.

[2]
[1]

3rd mirror

Technical Bulletin No. CFO-008

SUBJECT: Dirty Mirrors

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

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

FROM: FAX T.S. Section

MODEL: CSO

DATE:

— Problem —

In the field, the scanner mirrors may become dusty (poor scanning quality).
In this case, we recommend that you do proced ures 1 and 2.

— Procedure —

Procedure 1.

Clean the mirrors with the mirror cleanin g kit.
It is easy to clean the mirrors (there is no need to remo ve th e ADF ba se).

June 30, 1993 .

P/N: H0819300 (for CSO) Mirror Cleaning Kit

• Mirror Cleaning Tool ×1pc

• Cleaning Felt ×30pcs

• Vinyl Bag ×1pc

[Preparation]
Attach the cleaning felts [1] to the mirror cleaning to ol [2]. (Fig. 1)

(With one set of felts, you can clean the mirror up to 10 times)

[Cleaning Method]

(1) Remove the exposure glass.
(2) Insert the cleaning tool into the scanne r. (Fig. 2)
(3) Clean the mirrors by sliding the tool.

(3~4 times for each mirror)

Front

Fig. 1

[1]

[1]

1st mirror

2nd mirror

Fig. 2

Dust Protection

FCU

Technical Bulletin No. CFO-008

SUBJECT: Dirty Mirrors
Procedure 2.

Install the mirror protectio n she et kit. The sheets in the kit will prevent the mirrors fro m
becomeing dirty.

P/N: H0819900 Dust Prote ctio n Sh ee t Kit

• FCU Sheet × 1pc

• Dust Protection Sheet 1 × 1pc

• Dust Protection Sheet 2 × 1pc

• CTM Sheet × 1pc

[CTM Sheet Installation]

(1) Open the front cover, then cove r the OPC be lt with

a piece of paper (do not touch the belt surface by
hand).

(2) Attach the CTM sheet. (Fig. 3)

CTM Sheet

DATE:

June 30, 1993 .

Toner Duct

Fig. 3

[FCU Sheet Installation]

(1) Remove the rear/ left/ right/ lens covers.
(2) Insert the FCU sheet under the mirrors, then

attach the sheet to the right side and interior of
the ADF base. (Fig. 4)

[Dust Protection Sheet 1 and 2 Installation]
(1) Attach the dust protection sheet 1 to the left

side of the scann er and the upper side of the
shading plate. (Fig. 4)

(2) Attach the dust protection sheet 2 to the right

side of the scann er and the upper side of the
shading plate. (Fig. 4)

— Countermeasure —

Lens Cover

Dust Protection

Fig. 4

We have applied the modification (attaching the protection sheets to the productions) from the
June. productions.

Technical Bulletin No. CFO-008

SUBJECT: Dirty Mirrors

CTM Sheet

DATE:

June 30, 1993 .

FCU Sheet

Dust Protection
Sheet

Technical Bulletin No. CFO-009

SUBJECT: ADF Non Feed Problem

PREPARED BY: N. Mihara
CHECKED BY:

CLASSIFICATION:

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

FROM: FAX T.S. Section

MODEL: CFO

DATE: July 27, 1993

[Problem]

Non feed at the ADF may occur if copie r pap er which has silicon e oil on the sorfa ce is u sed as
a original.

[Reason]

Some copier machines may leave too much silicone oil on copies.

[Countermeasure]

Please replace the pick-up roller with the following countermeasure part.

Part No. H081950 4: Pick up roller (Carbor undum roller)

Note: Please note that th e ADF capacity will be decreased.

if the carborundum roller is installed.

ADF capacity: 50 sheets (Normal rubber roller)

20 sheets (Carborundum roller)