Ricoh FAX2500L Technical Bulletin FX3800



Model:

FR6

TECHNICAL BULLETIN

No:

Date:

31-Oct-97

001

1/35 Subject: From:

New Model FR6 Release

Technical Service Department

Classification:

Troubleshooting Mechanical Paper path Other ( )

Part information Electrical Transmit/receive

Prepared by: Checked by:

Action required Service manual revision Retrofit information

K. Misugi

S. Fujii

The new model FR6 (FAX3800L) has been released as a successor model to the FX6 (FAX2700L).

This technical bulletin contains information on differences between the FR6 and the FX6. They are listed in order of sections that appear in the service manual.

1. OVERALL MACHINE INFORMATION

1.1. SPECIFICATIONS Item FX6 FR6

Maximum Scan Width

216 mm [8.5 ins] ± 0.25% 256 mm [10 ins] ± 0.25%

(Effective Scan Width: 250 mm [9.8 ins])

Memory Capacity (SAF) 244 kbytes

(19 pages/ITU-T #1 Char t)

Compression MH, MR, EFC, MMR, SSC MH, MR, MMR, SS C Modulation V.29, V.27, V.21 V.34, V.17, V.29, V.27ter, V.21 Data Rate 9,600/7,200/4,800/2,400 bps 33,600/31,200/28,800/26,400/

Transmission Time 9 s at 9600 bps; G3 ECM,

ITU-T # 1 Chart, STD

Paper Feed Unit Not Available Optional Paper Feed Unit Available (500

0.5 Mbyte (40 pages/ITU-T #1 Char t)

With 1 Mbyte memory card:120 pages With 2 Mbytes memory card: 200 pages With 4 Mbytes memory card: 360 pages

24,000/21,600/19,200/16,800/ 14,400/12,000/9,600/7,200/4, 800/ 2,400 bps

Automatically adjusted in accordance with V.34, Automatic fallback t o V.17, V.29, V.27ter

3 s at 28,800 bps: G3 ECM, ITU-T # 1 Chart, STD

sheets, Letter, Legal)



1.2. FEATURES

The following features are available.

Features FX6 FR6

Confidential Reception Available with memory card Standard Batch Transmission Available with memory card Standard Economy Transmission Not available Standard Forwarding Available with memory card Standard Personal codes with Conf. ID Available with memory card Standard Transmission Deadline (TRD) Available with memory card Standard Two in one Not available Available Checkered mark Not available Available Confidential ID Available with memory card Standard Memory Lock (ID) Available with memory card Standard Multi-Sort Document Reception Available with memory card Standard

TECHNICAL BULLETIN

Reverse Order Printing Available with memory card Standard User Function Keys Not available Available (2 keys) Confidential File Report Available with memory card Standard



1.4. OVERALL MACHINE CONTROL

TECHNICAL BULLETIN

The FCE contains the FCIP2, DRAM, SRAM, System ROM, MN195003MFL modem, and video processing memory. It controls the entire system through the FDU.

The FCIP2 does not contain the modem block. The Panasonic MN195003MFL modem is used for all the communications (V.34, V.17, V.29, V.27ter., and V.21).

The 2 MB DRAM contains the SAF memory, ECM buffer memory, work area, and page memory. The SAF memory can be extended by 1, 2 or 4 Mbytes with an IC card option. A 1 MB (8 Mbit) flash ROM is used for the system ROM.

The FR6 uses two CPUs in the same way as the FX6. These are the main CPU in the FCIP2 and the power saver CPU which is used during the 2 W power saver mode.

The main differences in PCB components between the FR6 and the FX6 are listed below.

FX6 FR6

FCIP used FCIP2 used

(The FCIP2 is used in common with the LFO.)

FCE Rockwell R144EFXL modem used. Panasonic MN195003MFL modem

used. 512 kB (4 Mbit) flash ROM used. 1 MB (8 Mbit) flash ROM used. 1 MB DRAM used. 2 MB DRAM used.

FDU FPD motor driver used. SLA7024M motor driver used.



1.5. VIDEO DATA PATH

1.5.1 Transmission

TECHNICAL BULLETIN

Immediate Transmission: Scanned data from the CIS passes to the DIP block in the FCIP2. After analog/digital

video processing, the DCR block compresses the data for transmission. The compressed data then passes either to the FIFO memory or to the ECM memory before it is sent through the modem. The MN195003 modem is used for all the communications.

Memory Transmission: The scanned data is stored in the SAF memory after compression in the DCR block.

At the time for transmission , the DCR block decompresses the data from the SAF memory, then compresses it again after handshaking with the other terminal is done. The compressed data then passes either to the FIFO memory or to the ECM memory, before it is sent.

Parallel Memory Transmission: This feature allows the machine to scan a document into the SAF memory and send the

same document simultaneously. The machine stores the processed video data in the SAF memory and sends the data through the modem at the same time.



1.5.2. Reception

TECHNICAL BULLETIN

Data from the line passes to the modem through the NCU and hybrid IC. After the modem demodulates the data, the decompressed data passes to the DCR block, through either the FIFO or the ECM memory, where the data is decompressed to raster image data. At the same time, the compressed data passes to the SAF memory as a backup in case of mechanical problems during printing (substitute reception).

The raster image data is then passed to the page memory for printing. After a page of data has been stored in the page memory, the data is sent to the LDDR through the LIF block.



TECHNICAL BULLETIN

2. DETAILED SECTION DESCRIPTIONS

2.3. SYSTEM FEATURES

2.3.2. Automatic Service Calls

The following RAM addresses are different from the FX6.

2. Excessive Jam Alarms

Parameters Address (H) Initial

Settings

ADF Printer

DEC

(1 - 255; 0 = Disabled)

CALL

(3 - 15; 0 = Disabled)

CLR

Counters Address (H) Sys. Para.

JAM:

Jam counter used to place

a service call

NO-JAM1:

JAM counter decrement

NO-JAM2:

clearing the JAM counter 8001F0 (High) 8001F4 (High)

Counter used for

(Low) (High)

8001F5 8001F9 10 (H) X

8001F6 8001FA 06 (H) Y 8001F7 8001FB 30 (H) – 8001F8 8001FC 00 (H)

ADF Printer

8001EE 8001F2 Z

8001ED 8001F1 –

8001EF (Low) 8001F3 (Low) –

3. Periodic Service Call

Sys. Para.

List

Parameters Address (H)

Call interval: 01 through 15 month(s) (BCD)

00: Periodic Service Call Disabled

Date and time of the next call

Year: last two digits of the year (BCD) 800267 Month: 01 through 12 (BCD) 800268 Day: 01 through 31 (BCD) 800269 Hour: 00 through 23 (BCD) 80026A

4. PM Call

Address (H) Bits 7 - 4 Bits 3 - 0

80019A Tens Units 80019B Thousands Hundreds 80019C Hundred thousands Ten thousands

800266



5. Effective Term of Service Calls

Year: last two digits of the year (BCD) 800271 Month: 01 through 12 (BCD) 800272 Day: 01 through 31 (BCD) 800273

TECHNICAL BULLETIN

Address (H)



2.4. PCBs

2.4.1. FCE

TECHNICAL BULLETIN

1. FCIP2 (Facsimile Controller and Image Processor)

• CPU

• Data compression and reconstruction (DCR)

• Digital image processor (DIP)

• Laser interface (LIF)

• DMA controller

• Clock generation

• Stepper motor control

• Serial interface to the FDU

• DRAM backup control

• Fusing lamp control

2. Modem (Panasonic MN195003MFL)

• V.34, V.17, V.29, V.27ter, V.21 modem

3. ROM

• 1 MB (8 Mbit) flash ROM for system software storage.



4. DRAM

• 2 MB DRAM shared between the Line Buffer (32 kB), ECM Buffer (128 kB), Page Memory (768 kB), SAF memory (512 kB), and working area.

• Backed up by the battery on the FDU.

5. SRAM

• 128 kB SRAM for system and user parameter storage.

• Backed up by the battery on the FCE.

6. Video SRAM

• 8 kB SRAM for video processing.

7. Oscillators

• 29.952 MHz oscillator for system clock generation.

• 32.768 MHz oscillator for the real time clock. This is backed up by the battery on the

FCE.

• 24.192 MHz oscillator for the MN195003MFL modem.

TECHNICAL BULLETIN

8. Jumpers, Switches, and Test Points

Item Description

SW1 Switches the backup battery ON/OFF



2.4.2. FDU

TECHNICAL BULLETIN

1. Power Saver CPU

• 4-bit CPU for controlling the machine during p ower saver mode

2. DC/DC Converters

• +5V generation

• +12V generation

3. Motor Driver (SLA7024M)

• Stepper motor driver

4. EXIO (External I/O)

• Serial interface to the FCE and OPU

• Serial interface to an optional paper feed unit

• Parallel interface to the main motor, clutches, and sensors

5. HIC (Hybrid IC)

• 2-4 wire switching

• Filters and amplifiers

• Monitor speaker driver

H516D531.CDR



6. Interlock Switches

• The fusing unit interlock switch (+24V) disables the power supply to the drive components and the power pack.

• The fusing unit interlock switch (+5V) disables the laser diode power.

TECHNICAL BULLETIN



TECHNICAL BULLETIN

4. SERVICE TABLES AND PROCEDURES

4.1. SERVICE LEVEL FUNCTIONS

4.1.20. Software Download (Function 12)

This function copies software from an external medium to the Flash ROM on the machine’s FCE. The procedures to download the software are the same as for the FX6 series. However, if you are using the EPROM board, you must mount two 4-Mbit EPROMs because this machine uses an 8-Mbit EPROM on the FCE.

NOTE:

The Flash/SRAM data copy board which is used in common with the ADAM and LFO (P/N: A1939351) must be used for this procedure.

4M bit

(#1)

ROM BOARD II

4M bit

EPROM

(#2)

CN2

EPROM

(0H) U1 (1H) U2 (0L) U3 (1L) U4 U5 (L) U6 (H)

Data Copy Board P/N: A1939351

Mount the 4-Mbit EPROM #1 in the ROM socket U5 (L) and the 4-Mbit EPROM # 2 in the ROM socket U6 (H) as shown.

It is not necessary to change the jumper at TB1 on the FCU or change system bit switch 02 bit 5 for this machine.



4.2. BIT SWITCHES

RAM Reset Level 1: The address for RAM reset level 1 has been changed to 800005(H).

Change the data to FF(H), then turn the machine off and on to reset all the system settings.

Communication Parameters

Mode DCS: ITU-T standar d NSS: Non-standard G3 Modem rate 336: 33,600 bps 168: 16,800 bps

312: 31,200 bps 144: 14,400 bps 288: 28,800 bps 120: 12,000 bps 264: 26,400 bps 96: 9,600 bps 240: 24,000 bps 72: 7,200 bps 216: 21,600 bps 48: 4,800 bps 192: 19,200 bps 24: 2,400 bps

TECHNICAL BULLETIN

Communication mode ECM: Wit h ECM SSC: Using SSC

NML: With no ECM or SSC

Compression mode MMR: MMR compression

MR: MR compression MH: MH compression

Resolution SSF: Fine, transm it t ed at 8 x 15.4 dot s per mm

DTL: Detail, transmitt ed at 8 x 7.7 dot s per mm STD: Standard, transmit t ed at 8 x 3.85 dot s per mm

I/O rate 0M: 0 ms/line 10M: 10 ms/line

2/M: 2.5 ms/line 20M: 20 ms/line 5M: 5 ms/line 40M: 40 ms/line

Width and reduct ion =A4: A4 (8.3"), no reduction

=B4: B4 (10.1") no reduction A4: Reduced to A4 (8.3") befor e transmission

System Switch 02

No FUNCTION COMMENTS

Not used Do not change the settings.

System Switch 06

No FUNCTION COMMENTS

PC Fax Expander Function

0: Disabled 1: Enabled

1: Set this bit to 1 when the PC Fax Expander option has been installed.

+ 29 hidden pages