Ricoh fe450 Service Manual

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SERVICE MANUAL

PC-FAX EXPANDER TYPE 450

September 4th, 1998

Subject to change

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TABLE OF CONTENTS

1. OVERALL INFORMATION .......................................................... 1-1

1.1 SPECIFICATIONS ....................................................................................1-1

1.2 FEATURES...............................................................................................1-1

2. DETAILED DESCRIPTIONS .......................................................2-1

2.1 AT COMMANDS AND RESPONSES........................................................2-1

2.1.1 Class 0 Commands..........................................................................2-1

2.1.2 Class 2 commands...........................................................................2-1

2.2 Class 2 FAX communication.....................................................................2-3

2.2.1 Direct transmission...........................................................................2-3

2.2.2 Memory transmission .......................................................................2-3

2.2.3 Direct reception................................................................................2-4

2.2.4 Memory reception.............................................................................2-4

2.3 SCANNING AND PRINTING.....................................................................2-5

2.3.1 SCANNING ......................................................................................2-5

2.3.2 PRINTING........................................................................................2-5

3. INSTALLA TION...........................................................................3-1

4. SERVICE TABLES AND PROCEDURES ...................................4-1

4.1 SERVICE MODE FUNCTIONS.................................................................4-1

4.1.1 PC Protocol DUMP List....................................................................4-1

4.2 Bit swicthes ...............................................................................................4-1

4.3 User PARAMETERS.................................................................................4-1

5. PARTS LIST................................................................................5-1

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17 September 1998 SPECIFICATIONS

1. OVERALL INFORMATION

1.1 SPECIFICATIONS

Item Description

PC Fax Interface EIA/TIA Class 2

(Class 1 is not supported)

Host Interface Connector EIA/TIA RS232C

DB25 female connector

Scanner TWAIN interface

Maximum resolution: 200 x 200 dpi

1.2 FEATURES

Class 2 fax transmission directly from a host PC (PC fax application required)

Class 2 fax transmission through SAF memory (PC fax application required)

Class 2 fax reception directly to a host PC (PC fax application required)

Class 2 fax reception through SAF memory (PC fax application required)

Local printing from a PC fax application (PC fax application required)

Local scanning from the machine’s scanner using TWAIN API (CFM Twain driver required)

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17 September 1998 AT COMMANDS AND RESPONSES

2. DETAILED DESCRIPTIONS

2.1 AT COMMANDS AND RESPONSES

2.1.1 CLASS 0 COMMANDS

Command Function Remarks

ATA Answer ATD Dial ATE Command echo ATH Switch-hook control ATI Identification ATL Speaker volume ATM Speaker control ATP Set pulse dial as default ATQ Result code display ATS S register ATT Set t o ne dial as default ATV Result code form ATX Extended result codes

ATZ Reset AT&C DCD option AT&D DTR option

AT&F Restore factory configuration

The machine returns OK, but the function is not supported.

2.1.2 CLASS 2 COMMANDS

Command Function Remarks

AT+FCLASS? Service class AT+FMFR? Identify manufacturer The machine responds AT+FLID Local ID string

AT+FBOR Phase C data bit order AT+FCR Capability to receive The machine returns OK,

AT+FDCC DCE capability parameters AT+FDIS Current session parameters AT+FDT Data transmission AT+FET T r ansmit page punctuation AT+FDR Phase C receive data AT+FMDL? Identify model

The machine responds “0” or “2”.

“RICOH(NAD)”.

but the function is not supported.

The machine responds “PC-FAX EXPANDER (NAD)”.

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AT COMMANDS AND RESPONSES 17 September 1998

Command Function Remarks

AT+FREV? Identify revision

AT+FAA Adaptive answer AT+FPHCTO Phase C timeout AT+FECM ECM parameter AT+FBUG

AT+FPTS Page transfer status AT+FAXERR Fax error value

AT+FDCS Current session results AT+FCQ Copy quality capability parameter The machine returns OK,

AT+FK Session termination +FHNG Call termination with status +FCON Facsimile connection response +FCSI Report the CSI +FTSI Report the TSI +FCFR Indicate CFR

Session manager reporting parameter

The machine responds with FCU ROM version and release date.

The machine returns OK, but the function is not supported.

but the function is not supported.

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17 September 1998 CLASS 2 FAX COMMUNICATION

2.2 CLASS 2 FAX COMMUNICATION

2.2.1 DIRECT TRANSMISSION

SAF

DCR

IBM Compatible

FCU

ModemDIU

NCU

A824D001.WMF

The host computer sends commands and image data to the machine through the DIU during transmission.

NOTE:

1) Group dials programmed in the machine cannot be used.

2) ISDN G4 numbers programmed in quick or speed dials cannot be used.

3) If ISDN is selected for G3 communication (system switch 0A, bit 6), the G3 numbers must have been programmed in quick or speed dial.

4) T.30 optional protocols (e.g., BFT) are not supported by class 2 fax communication.

2.2.2 MEMORY TRANSMISSION

SAF

FCU

DCR

ModemDIU

IBM Compatible

NCU

A824D002.WMF

The host computer sends destination number(s) and image data to the machine through the DIU during transmission. The machine stores the image in the SAF memory, then makes a fax transmission.

NOTE:

1) If the memory overflows while storing the first page into SAF memory, the machine does not start the transmission.

2) If the memory overflows while storing the second or subsequent page into SAF memory, the machine transmits all the successfully stored pages.

3) When fax numbers programmed in the machine’s quick or speed dials are specified using the PC fax application, all the specified numbers must have been programmed in the fax machine.

4) T.30 optional protocols (e.g., BFT) are not supported by class 2 fax communication.

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CLASS 2 FAX COMMUNICATION 17 September 1998

2.2.3 DIRECT RECEPTION

SAF

DCR

IBM Compatible

FCU

ModemDIU

NCU

A824D003.WMF

The machine transfers received image data directly to the host PC without storing it into SAF memory.

NOTE:

1) If the host PC is not ready to receive a fax message, the machine receives the message into SAF memory.

2) Even if the SAF memory is full, the machine starts fax reception. However, the machine will not continue reception if the host computer is not ready to receive a message.

3) The “Number of rings to answer” parameter in the PC fax application must not exceed 4.

2.2.4 MEMORY RECEPTION

SAF

DCR

IBM Compatible

FCU

ModemDIU

NCU

A824D004.WMF

The machine receives a fax message in the SAF memory, then transfers data to the host computer after the reception has finished. The machine prints the received message after transferring data to the host if user parameter 20 – bit 4 is set to “1: Print”.

NOTE:

1) If an error occurs due to cable disconnection, the PC fax application must be restarted to receive the message.

2) Memory reception is not possible when forwarding is enabled.

3) Manual reception from the PC fax application is not supported.

4) The “Number of rings to answer” parameter in the PC fax application must not exceed 4.

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17 September 1998 SCANNING AND PRINTING

2.3 SCANNING AND PRINTING

2.3.1 SCANNING

Scanner

Application

Twain Driver

Serial Port

Page Memor

DCRDIU

IBM Compatible

A824D005.WMF

FCU

The machine scans an original into page memory, then transfers the data to the host PC. The data is sent to the application through the CFM Twain driver.

NOTE:

1) The maximum resolution is 200 x 200 dpi.

2.3.2 PRINTING

Printer Engine

FCU

Page Memory

DCRDIU SAF

IBM Compatible

A824D006.WMF

The machine receives print data into SAF memory as fax image data, then prints it after all the data has been transferred from the host PC. The destination number “0000” informed from the host PC identifies a print job.

NOTE:

1) If SAF memory runs out while receiving print data, the machine prints up to the successfully received data.

2) The machine cannot receive print data while printing a message from the SAF memory. The data will be received after printing.

3) If a fax destination is specified together with the print destination “0000”, the destinations specified after “0000” will be delayed until the machine prints all pages in the message.

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17 September 1998 INSTALLATION

3. INSTALLATION

THIS OPTION MUST BE INSTALLED BY A CUSTOMER SERVICE REPRESENTATIVE WHO HAS COMPLETED THE TRAINING COURSES FOR THE BASE COPIER AND THIS OPTION.

NOTE:

Before installing this option, turn off the main switch, and disconnect the power cord.

1) Never install telephone wiring during a lightning storm.

2) Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

3) Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

4) Use caution when installing or modifying telephone lines.

5) Avoid using a telephone (other than a cordless type) during an electric storm. There may be a remote risk of electric shock from lightning.

6) Do not use an telephone to report a gas leak in the vicinity of the leak.

CAUTION

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INSTALLATION 17 September 1998

INSTALLATION PROCEDURE

[B]

[A]

A815I500.WMF

[I]

[E]

[F]

[G]

[C]

[D]

A815I501.WMF

[J]

A815I502.WMF

1. Remove the rear cover [A] (4 screws) and the left-side cover [B] (4 screws).

2. Remove the bracket [C] (2 screws) and disconnect the harness [D], then remove the FCU [E] from the expansion box.

NOTE:

If the ISDN unit was already installed, go to “with the ISDN unit” section on the next page.

Without the ISDN unit

3. Connect the harness [F] to the DIU [G]. (RS232C interface)

4. Attach the bracket [H] enclosed in the PC-Fax Expander to the DIU [G]. (2 screws)

[H]

5. Attach the FCU [I] to the bracket [H] (2 screws).

6. Connect the harness [F] to the CN326 on the FCU [I] as shown.

7. Remove 2 hexagonal screws [J] from the DIU [G].

Go to step 8 on page 3-4.

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17 September 1998 INSTALLATION

[B]

[A]

[C]

[E]

[F]

[G]

[D]

A815I503.WMF

With the ISDN unit

NOTE:

The bracket which is enclosed in the PC-Fax Expander is not used.

3. Disconnect the interface board [A], then remove the FCU [B] from the assembly as shown.

4. Connect the harness [C] to the DIU [D], then attach the DIU [D] to the bracket [E] as shown

5. Make sure that the harness [C] is between the ISDN board [F] and the FCU [B], then replace the FCU [B] as shown.

6. Connect the harness [C] to the CN326 on the FCU [B], then replace the interface board [A] as shown.

NOTE:

Make sure not to pinch the harness [C] between the FCU [B] and the interface board [A] when connecting it.

7. Remove the 2 hexagonal screws [G] from the DIU [D].

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INSTALLATION 17 September 1998

[A]

[B]

[E]

[D]

[C]

A815I504.WMF

8. Insert the FCU and DIU assembly [A] into the expansion box; connect the harness [B] and slide the assembly into bottom of the box.

9. Open the RS232C connector window [C] on the bracket [D], then install the bracket [D] onto the expansion box.

10. Tighten the 2 hexagonal screws [E] as shown.

11. Replace the left-side and rear covers. (4 screws each).

12. Plug in the machine and turn on the main switch.

13. Enter the service mode, and set bit 3 of system switch 1C to “1”, then turn off and on the main switch.

14. Print the system parameter list. If “TR29” appears in the “option” section of the system parameter list, go head. Otherwise, check the cable connection.

15. Follow the instructions in the Operator’s manual to connect the machine to a host computer and how to set up the machine and the computer, if required.

NOTE:

1) A “Straight – through” shielded serial cable is required, but it is not enclosed.

2) One end of the serial cable must have DB25 male connection to connect to the DIU.

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17 September 1998 SERVICE MODE FUNCTIONS

4. SERVICE TABLES AND PROCEDURES

4.1 SERVICE MODE FUNCTIONS

4.1.1 PC PROTOCOL DUMP LIST

Use this function to check the AT commands and responses that are exchanged between a host computer and the machine. Refer to section 2.1 for details of the supported AT commands.

1. Enter service mode, and select 05 “Protocol Dump”.

2. Select 3 “PC Protocol List”, then press Start.

4.2 BIT SWICTHES

System Switch 1C

No FUNCTION COMMENTS

PC-DIU communication record on the Journal

Disabled

Enabled

Not used Do not change the settings.

2 3

PC-Fax Expander option

Not installed

Installed

Not used Do not change the settings.

Communications between the DIU and a host PC are logged on the Journal. Also, the Data-in LED turns on while data is coming in and going out to the PC. Be sure to reset this bit to “0” after a test.

Change this bit to 1 when installing the PC-Fax Expander. (Europe model only)

4.3 USER PARAMETERS

User Switch 20

No FUNCTION COMMENTS

Class 2 transmission

Direct tx

Memory tx

Addition of fax TTI in class 2 memory transmission

Disabled

Enabled

Image data is sent directly from a host during communication.

Image data is sent to the fax machine’s SAF memory before starting a fax communication, then it is sent by the fax machine.

The machine adds its TTI to all the messages sent through SAF me mo ry. This setting is effective only when bit 0 is set to “1”.

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USER PARAMETERS 17 September 1998

User Switch 20

No FUNCTION COMMENTS

Message received to:

Fax

Received messages are printed at the machine.

Received messages are transferred to the host PC.

Class 2 reception

Direct rx

Memory rx

Received messages are transferred to the host

PC directly during fax communication.

Received messages are stored in the SAF memory during reception. Then they are transferred to the host PC after reception has been completed.

Message printout in class 2 memory rx

Disabled

Enabled

Checkered mark on printouts from a P C

Disabled

Enabled

Not used Do not change the settings.

A message received into memory is printed after it has been transferred to the host PC.

The machine prints a checkered mark on a document printed through the DIU.

User Switch 21

No FUNCTION COMMENTS

Scan density for the “Light” setting in scanner mode.

Bit3 Bit2 Bit1 Bit0 Setting

0 0 0 1 0 0 1 0

Scan density for the “Dark”

setting in scanner mode.

Bit7 Bit6 Bit5 Bit4 Setting 0 0 0 1 0 0 1 0

Level1 Level2

Level5

Level6

All the other settings are the same as Level1.

All the other settings are the same as Level5.

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17 September 1998 PARTS LIST

5. PARTS LIST

Index Part Number Name Q’ty/Unit

1 A2335195 PCB - DIU 1 2 A2335282 Harness – FCU-DIU 1 3 A8165801 Bracket 1 4 04513006B Screw – M3 x 6 4

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