Ricoh Fx880 Service Manual
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Ricoh Fx880 Service Manual

Ricoh Fx880 Service Manual

Fax880 mp mv 74 fax and printer
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IFO
RICOH FAX880 MP
MV 74
SERVICE MANUAL
November 28th, 1995
Subject to change
Printed in Japan

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Summary of Contents for Ricoh Fx880

  • Page 1 RICOH FAX880 MP MV 74 SERVICE MANUAL November 28th, 1995 Subject to change Printed in Japan...
  • Page 2 Lithium Batteries (Memory Back-up) CAUTION The danger of explosion exists if a battery of this type is incorrectly replaced. Replace only with the same or an equivalent type recommended by the manufacturer. Discard used batteries in accordance with the manufacturer’s instructions. Important: Before servicing this machine, please read the following notes.

  • Page 3: Table Of Contents

    Table of Contents 1. OVERALL MACHINE INFORMATION 1.1. SPECIFICATIONS ....1.2. FEATURES ..... 1.3.
  • Page 4 2.2.8. Data Reduction and Page Separation ..2-15 2.3. PCBs ..... . . 2-16 2.3.1.
  • Page 5 4.1.3. Error Code Display (Function 03) ... 4.1.4. Service Monitor Report (Function 04) ..4.1.5. Protocol Dump (Function 05) ... . 4.1.6.
  • Page 6 5.3.1. PSU [A] ..... 5.3.2. IJC [A] ..... 5.3.3.

  • Page 7: Overall Machine Information

    November 28th, 1995 OVERALL MACHINE INFORMATION SPECIFICATIONS 1. OVERALL MACHINE INFORMATION 1.1. SPECIFICATIONS Transmission Time Type 9 s at 9600 bps; Measured with G3 ECM us- Desktop type transceiver ing memory for a ITU-T #1 test document Circuit (Slerexe letter) at standard resolution PSTN, PABX Printing System Connection...

  • Page 8: Features

    OVERALL MACHINE INFORMATION November 28th, 1995 FEATURES 1.2. FEATURES Communication Features - User Selectable KEY: O = Used, X = Not Used, Auto image density selection A = With optional memory only Auto paper size selection B = With optional handset only Automatic Voice Message C = With color cartridge only Batch Transmission...
  • Page 9 November 28th, 1995 OVERALL MACHINE INFORMATION FEATURES Communication Features - Other User Features User Selectable Confidential ID Secured Polling with Stored ID Copy editing (Erase Center/Mar- Override gin) Secure Transmission Copy mode Send Later Copy Mode Restriction Silent ringing detection Counters Specified Image Area Daylight Saving Time...
  • Page 10 OVERALL MACHINE INFORMATION November 28th, 1995 FEATURES Reports - Automatic Service Mode Features Charge Control Report File Transfer Communication Failure Report LCD contrast adjustment Confidential File Report Line error mark Error Report Memory file printout (substitute reception only) Memory Storage Report Modem test Mode Change Report NCU parameters...

  • Page 11: Component Layout

    November 28th, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1.3. COMPONENT LAYOUT 1.3.1. Mechanical Components H505V501.wmf Name Description Thermal ink jet printer unit. Document Feed Roller This roller feeds the document into the scanner. Paper Feed Unit This unit can hold up to 150 sheets. Paper Feed Roller This roller picks up the top sheet of paper, and feeds it into the printer.

  • Page 12: Electrical Components

    OVERALL MACHINE INFORMATION November 28th, 1995 COMPONENT LAYOUT 1.3.2. Electrical Components H505V502.wmf 1. PCBs Name Description FDU (Facsimile Driver This board contains drivers for the motors, a dc-dc Unit) converter, and the DRAM backup circuit. OPU (Operation Panel This board controls the operation panel. Unit) IJC (Ink Jet Controller) This board controls the ink jet printer.

  • Page 13: Motors

    November 28th, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 2. Motors Name Description Tx Motor This stepper motor drives the scanner rollers. Carriage Motor This motor drives the printer’s carriage mechanism. Paper Feed Motor This motor drives the paper feed roller and the registration roller.

  • Page 14: Overall Machine Control

    OVERALL MACHINE INFORMATION November 28th, 1995 OVERALL MACHINE CONTROL 1.4. OVERALL MACHINE CONTROL Optional RS232C I/F Optional DRAM IC Card ECM/ Working System System Video Memory SRAM (SRAM) DATA/ADDRESS BUS DMAC PRIF FCIP SRAM Thermistor RIDC Speaker Controller Contact Image Centronics Sensor Print...
  • Page 15 November 28th, 1995 OVERALL MACHINE INFORMATION OVERALL MACHINE CONTROL The 512 KB DRAM contains the SAF memory, ECM buffer memory, and work area. The SAF memory can be extended by 2 or 4 Mbytes with an IC card. A 512 KB (4 Mbit) ROM is used for the system ROM. For the USA and some Europe models, the software in this ROM can be re- written from the IC card slot or by RDS (because a Flash ROM is used).

  • Page 16: Video Data Path

    OVERALL MACHINE INFORMATION November 28th, 1995 VIDEO DATA PATH 1.5. VIDEO DATA PATH 1.5.1. Transmission Original Contact Image Sensor Assembly Image Sensor LED Array Video FCIP Processing Memory Amplifier DATA/ADDRESS BUS DRAM Line SAF IC Buffer/ ECM/SAF Card FIFO Memory Memory To the network H505V505.wmf...

  • Page 17: Reception

    November 28th, 1995 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5.2. Reception RIDC SRAM Print Controller Print Head Controller DRAM Carriage Printer Head Copy Paper H505V506.wmf Data from the line passes to the modem through the NCU and hybrid IC. Af- ter the modem demodulates the data, the data (which is compressed) passes to the SAF memory.

  • Page 18: Copying

    OVERALL MACHINE INFORMATION November 28th, 1995 VIDEO DATA PATH 1.5.3. Copying Original Contact Image Sensor Assembly Image Sensor LED Array RIDC SRAM Print Controller Carriage Print Head Printer Head Controller Copy Paper DRAM H505V507.wmf Single copy The scanned data is processed in the DIP block. After the data has been stored in the DRAM for printing through the RIDC, the data is sent to the printer head through the Print Controller.

  • Page 19: Printing From The Centronics Interface

    November 28th, 1995 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5.4. Printing from the Centronics Interface Centronics RIDC Controller Print Controller Printer Head Controller DRAM Bit Map Font Printer Control Program Data Carriage Printer Head Copy Paper H505V508.wmf The print data passes from the Centronics interface to the print controller through the I/F controller and the RIDC.

  • Page 20: Power Distribution

    OVERALL MACHINE INFORMATION November 28th, 1995 POWER DISTRIBUTION 1.6. POWER DISTRIBUTION 1.6.1. Distribution Diagram DRAM Backup +5VBAT Circuit +24VM +5VBAT +12VP DC-DC Comverter +24VM +24VM DC-DC Converter Ink End +24VH Sensor +24VM +24VH Operation Panel +24VM Carriage +24VM +24VM HVDD Drivers (for Stepping Motors) Driver...

  • Page 21: Memory Back-Up Circuit

    November 28th, 1995 OVERALL MACHINE INFORMATION POWER DISTRIBUTION 1.6.2. Memory Back-up Circuit H505V510.wmf The +5VBAT supply from the lithium battery [A] backs up the system RAM which contains system parameters and programmed telephone numbers, and the real time clock in the main cpu. The 5RTCCS signal tells the main cpu whether the back-up power (+5VBAT) is coming from the battery or from the +5V power supply.

  • Page 22: Detailed Section Descriptions

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. DETAILED SECTION DESCRIPTIONS 2.1. SCANNER 2.1.1. Mechanisms 1. Document Detection, Pick-up and Separation and Drive Mechanism H505D501.wmf A: Document Sensor B: Scan Line Sensor C: Separation Rubber Plate E: Tx Motor The document sensor [A] detects when a document is placed in the ADF. The tx motor [E] then starts to prefeed the document until the scan line sensor [B] detects it.

  • Page 23: Image Scanning

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 SCANNER 2.1.2. Image Scanning H505D522.wmf The scanner consists of a shading plate [A] and a contact image sensor (CIS) assembly [B]. Inside the CIS are an exposure glass [C], a rod lens ar- ray [D], an image sensor [E], and an LED array [F]. The image sensor consists of a row of 1728 photosensitive elements.
  • Page 24 November 28th, 1995 DETAILED SECTION DESCRIPTIONS SCANNER Auto Contrast Thresholding This machine determines the contrast thresholds automatically when text mode is used. The machine compares the video data element with the sur- rounding elements and automatically calculates the threshold level. When this mode is enabled, the contrast threshold setting of scanner bit switch 02 is ignored.

  • Page 25: Printer

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER 2.2. PRINTER 2.2.1. Printer Configuration H505D512.wmf Ink Cartridge [A]: The ink cartridge is made up of the printer head and the cartridge body. The machine can use both black and color ink cartridges. The black ink cartridge is a single unit, but the color ink cartridge has sepa- rate ink refills (black and color) which can be replaced.

  • Page 26: Ink Cartridge (Black And Color)

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2.2.2. Ink Cartridge (Black and Color) Black Ink Cartridge H505D506.wmf Color Ink Cartridge H505D507.wmf The black ink cartridge contains only the black ink sponge [A] while the color cartridge contains ink sponges for black [B], yellow [C], magenta [D], and cyan [E].

  • Page 27: Printer Head

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER 2.2.3. Printer Head 1. Mechanism H505D508.wmf Ink from the sponge is filtered at [A] to remove dust, and then passes to the noz- zles through pipe [B]. When the head drive current flows through a nozzle’s heater plate [C], the ink at the plate boils.

  • Page 28: Drive Circuitry

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2. Drive Circuitry Temperature Control Heater x 2 RANK Rank Resistor Sub-heater x 2 WH-T <0> H ENB <1> Odd ENB Even ENB Heater 1 <0> B ENB <1> <2> Decoder Delay 128/ 128/136 128/136 Bit Shift...

  • Page 29: Print Signals

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER 3. Print Signals 160s (6.25kHz) Smoothing 128s (7.81kHz) 112s (8.93kHz) HLATCH 128 OR 136 HDATA Data transmission to shift register HCLOCK Odd ENB Even ENB B ENB 0 Head Driving in HQ Mode B ENB1 (Divided into 16) B ENB 2...

  • Page 30: Purge Unit

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2.2.4. Purge Unit 1. Components H505D511.wmf Purge Unit Drive Gear [A]: The paper feed motor drives this gear during cleaning. The gear functions as a cam to control the ink pump inside the purge unit.

  • Page 31: Purge Unit Functions

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER 2. Purge Unit Functions Capping The capping function prevents drying of the nozzle and ink leakage. The cap is automatically over the nozzles when the carriage is at home position. Cleaning The cleaning function consists of two operations. 1.

  • Page 32: Paper Feed

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2.2.5. Paper Feed 1. Overview H505D513.wmf The paper feed roller [A] picks up the top sheet of paper from the paper feed unit [B] and feeds it into the printer. The paper feed roller sensor [C] checks whether the feed roller is at the starting position before printing.

  • Page 33: Drive Mechanism

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER 2. Drive Mechanism H505D502.wmf When the carriage is at the home position (this is also the capping position), the drive transfer mechanism in the purge unit is unlocked (see section 2-2- 4), and drive from the paper feed motor is transferred either to the paper feed or to the purge unit, depending on the direction that the paper feed motor is rotating.

  • Page 34: Ink End Detection

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2.2.6. Ink End Detection To determine whether ink is present in the cartridge, the machine prints a black dot (known as the ink end mark) after printing the last line on a page. The ink end sensor reads the white level around the mark, and then it looks for the ink end mark itself.

  • Page 35: Maximum Print Lengths

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PRINTER Ink End Sensor The ink end sensor is a photosensor that uses red light. The machine adjusts the amount of current to the photosensor automatically to correct for the manufacturer’s sensor type. The current is determined by the output level the sensor reads during the white level scan on the paper when detecting the ink end mark.

  • Page 36: Data Reduction And Page Separation . . . . . . . . . 2.3. Pcbs

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PRINTER 2.2.8. Data Reduction and Page Separation If the vertical reduction ratio is set to AUTO with user function 62, incoming data can be reduced to fit on one output page. Data will only be reduced if the length of the incoming page does not exceed a certain maximum length.

  • Page 37: Fce

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PCBs 2.3. PCBs 2.3.1. FCE Syetem ROM DRAM Video SRAM SRAM (512kB) (512kB) (8kB) (32kB) DATA/ADDRESS BUS Battery 29.952MHz FCIP 32.768kHz Memory Card (Optional) RS232C Interface (Optional) H505D519.wmf 1. FCIP (Facsimile Controller and Image Processor) Modem (V.29, V.27, V.21) Data compression and reconstruction (DCR) Digital image processor (DIP)

  • Page 38: Dram

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 3. DRAM 512 kB DRAM shared between the Line Buffer (32 kB), ECM Buffer (128 kB), and SAF memory (352 kB) Backed up by the battery on the FDU 4. SRAM 32 kB SRAM for system and user parameter storage Backed up by the battery on the FCE 5.

  • Page 39: Fdu

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PCBs 2.3.2. FDU Driver Tx Motor Paper Feed Motor Drivers Carriage Motor Paper Feed Roller Sensor Paper End Sensor Carriage Carriage Drive Circuit Paper Head Heater Driver Printer Controller DC/DC Converter +24V FCIP DRAM Back-up Circuit DRAM H505D516.wmf...

  • Page 40: Dc/Dc Converter

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 4. DC/DC Converter +5V generation -5V generation 5. Battery Back-up for the DRAM on the FCE 6. Jumpers, Switches, and Test Points Item Description Not used 2-19...

  • Page 41: Ijc

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PCBs 2.3.3. IJC Centronics Interface RIDC SRAM Ink End Sensor EEPROM Top Cover Sensor Printer Controller Front Cover Sensor Paper Release Lever Sensor DRAM LED Driver Contact Image Sensor Speaker H505D517.wmf 1. CPU (MPU) Printer head control Carriage motor control Paper feed motor control...

  • Page 42: Oscillators

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 5. Oscillators 16 MHz oscillator for MPU control clock generation (OSC1) 22.11 MHz oscillator for printer control clock generation (OSC2) 6. Raster Image Data Controller (RIDC2) Raster image data converter Interface between FCE and TIJ controller 7.

  • Page 43: Psu

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PCBs 2.3.4. PSU +24V Surge AC Input Protection Surge Protection COM3 Switching Circuit H505D518 +24Vdc generation 2-22...

  • Page 44: Ncu (Usa)

    November 28th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.3.5. NCU (USA) OHDISW TRXD RING Current Sensor OHDISW Hook0 Hook1 ExRing Ring Detect RI TONE Ext. Tel DP/Off-Hook ExDI Relay Detection OML SW H505D520.wmf 1. Jumpers Item Description These jumpers should be shorted when the machine is connected to a dry line.

  • Page 45: Ncu (Europe/Asia)

    DETAILED SECTION DESCRIPTIONS November 28th, 1995 PCBs 2.3.6. NCU (Europe/Asia) RI TONE SHUNT CML Relay Filter (16Hz) DO Sw. RING TRXD Current Sensor Loop Closure Circuit OHDI Sw. JP24 DOSW OHDISW GS Sw. CMLSW Hook0 Hook1 SHUNT GSSW CSEL0 Ring CSEL1 RING Detection...

  • Page 46: Installation

    November 28th, 1995 INSTALLATION INSTALLING THE MACHINE 3. INSTALLATION 3.1. INSTALLING THE MACHINE Refer to the Operator’s Manual for the installation environment and how to in- stall and set up the machine. Refer to section 2.3.6. for how to set up the NCU hardware in each country. 3.2.

  • Page 47: Service Tables And Procedures

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4. SERVICE TABLES AND PROCEDURES 4.1. SERVICE LEVEL FUNCTIONS In this section frequently used keys are referred to with the following symbols. - Start key - Stop key - Function key - Yes key - No key - Up arrow key...

  • Page 48: System Parameter List (Function 02)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 5. To adjust more bit switches - go to step 3. To finish: 4.1.2. System Parameter List (Function 02) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 3. Finish: 4.1.3. Error Code Display (Function 03) FUNCTION KPAD/NEXT SERVICE FUNCTIONS...

  • Page 49: Protocol Dump (Function 05)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.5. Protocol Dump (Function 05) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately START PROTOCOL DUMP 4. Finish: 4.1.6. RAM Display/Rewrite (Function 06) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-MEM.R/W 1-MEM.DUMP ADDRESS = 000000 DATA = 00 4.

  • Page 50: Ram Dump (Function 06)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 4.1.7. RAM Dump (Function 06) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-MEM.R/W 1-MEM.DUMP MEMORY DUMP START/N ADD.000000 - 0000FF 4. Enter the first four digits of the start and MEMORY DUMP START/N end addresses .

  • Page 51: Ncu Parameters (Function 08)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4. To change the contents of a counter, input the new value, then press 5. To finish: 4.1.9. NCU Parameters (Function 08) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-NCU 1-MODEM 2-DTMF 3-DETECT 4.

  • Page 52: Dtmf Tone Test (Function 08)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 4. Scroll through the available tests using 6. To stop the test: 7. To finish: 4.1.11. DTMF Tone Test (Function 08) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-NCU 1-MODEM 2-DTMF 3-DETECT DTMF TEST START/<>...

  • Page 53: Modem Detection Test (Function 08)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.12. Modem Detection Test (Function 08) Note: This function can be used only when G3 bit switch 0B bit5 (French PTT requirements) is 1 in European models. It cannot be used in USA models.

  • Page 54: Led Array Test (Function 10)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 4.1.14. LED Array Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP 1-ADF START LAMP 5. To stop the test, press 6. To finish: 4.1.15. ADF Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS...

  • Page 55: Printer Test Patterns (Function 11)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.16. Printer Test Patterns (Function 11) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-PATTERN 1-CARRIAGE 2-SENSOR PATTERN PRINT KPAD 0-9,# 5. Press a key from , or Test Pattern Type Remarks Vertical black stripes 2 x 2 dot pattern Mixed pattern 1...

  • Page 56: Printing The Eeprom Information Sheet And Initializing The Eeprom (Function 11)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 4.1.17. Printing the EEPROM Information Sheet and Initializing the EEPROM (Function 11) Note: This procedure can be done only when a black ink cartridge is installed. The machine calculates the amount of ink ejected to the ink absorbers and stores it in the EEPROM on the IJC board.

  • Page 57: Printer Mechanism Test - Free Run (Function 11)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 0-PATTERN 1-CARRIAGE 2-SENSOR PATTERN PRINT KPAD 0-9,# 4. Press The machine first resets the counters in the EEPROM, then it prints the EEPROM information sheet. The format of the sheet is the same as shown on the previous page. 4.1.18.

  • Page 58: Ink End Sensor Initialization (Function 11)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS 4.1.19. Ink End Sensor Initialization (Function 11) FUNCTION KPAD/NEXT 9 SERVICE FUNCTIONS then immediately 0-PATTERN 1-CARRIAGE 2-SENSOR START SET SENSOR The machine prints a test pattern and initializes the sensor parameters. 6.

  • Page 59: Software Download (Function 12)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.21. Software Download (Function 12) Note: This function is only avalable with machines that have FLASH ROM. Instead of replacing an EPROM to update the machine’s software (as in older models), you may use this procedure to update the software in the machine’s Flash ROM.

  • Page 60: Software Upload (Function 12)

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE LEVEL FUNCTIONS If the software is successfully downloaded, the display shows "OK". OK!! COPY MACH <- FLROM If the software download fails, the display shows "NG". NG!! COPY MACH <- FLROM 8. To finish, press 9.

  • Page 61: Sram Data Download (Function 12)

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.23. SRAM Data Download (Function 12) This function copies all the data stored in the SRAM on an external FCE to the machine’s FCE. Use this after replacing a damaged FCE to save any pre- vious settings that were programmed in the damaged FCE.

  • Page 62: Serial Number (Function 14)

    SERIAL # KPAD 3. Enter the machine’s serial number at the SERIAL # KPAD/Y/N keypad. RICOH 1234567 To correct a mistake: 4. If the display is correct: 5. Finish: 4.1.25. Service Station Fax Number (Function 13) FUNCTION KPAD/NEXT...

  • Page 63: Bit Switches

    November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2. BIT SWITCHES WARNING Do not adjust a bit switch that is described as "Not used", as this may cause the machine to malfunction or to operate in a manner that is not accepted by local regulations.
  • Page 64 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES System Switch 00 FUNCTION COMMENTS Technical data printout on 1: Instead of the personal code, the following data are TCR (Journal) listed on the TCR for each analog G3 communication. 0: Disabled e.g.
  • Page 65 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Parameters Mode DCS: ITU-T standard NSS: Non-standard G3 Modem rate 96: 9600 bps 72: 7200 bps 48: 4800 bps 24: 2400 bps Communication ECM: With ECM SSC: Using SSC mode EFC: Using EFC NML: With no ECM, SSC, or EFC Compression MMR: MMR compression...
  • Page 66 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES System Switch 01 - Not used. (Do not change the settings.) System Switch 02 FUNCTION COMMENTS Memory file transfer 1: All messages in the memory (including confidential 0: Disabled rx messages) are sent to the fax number which is 1: Enabled programmed as the service station.
  • Page 67 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 04 FUNCTION COMMENTS Not used Do not change the settings. Dedicated transmission This bit must be set to 1 before changing any parameter programming dedicated transmission parameters. 0: Disabled 1: Enabled Inclusion of the Start key in 0: The user does not need to press the Start key when Keystroke Programs...
  • Page 68 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES System Switch 09 FUNCTION COMMENTS Addition of part of the image If this feature is enabled, the top half of the first page data from confidential of confidential messages will be printed on transmissions on the transmission result reports.
  • Page 69 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 0B FUNCTION COMMENTS Automatic reset timer (1, 1): Automatic reset is disabled. Bit 1 Bit 0 Timer setting (Other): The machine returns to the standby mode 1 minute when the timer expires after the last operation. 3 minutes 5 minutes No limit...
  • Page 70 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES System Switch 12 FUNCTION COMMENTS TTI printing position in the 08 to 92 (BCD) mm. Input even numbers only. main scan direction This setting determines the TTI print start position from the left edge of the paper.

  • Page 71: Scanner Switches

    November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.2. Scanner Switches Scanner Switch 00 FUNCTION COMMENTS Not used Do not change the settings. Maximum transmittable If the user wants to send very long documents such as document length well logs, select a higher setting. Bit 3 Setting 600 mm...
  • Page 72 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES Scanner Switch 06 - Not used (do not change the settings) Scanner Switch 07 - Not used (do not change the settings) Scanner Switch 08 - Not used (do not change the settings) Scanner Switch 09 - Not used (do not change the settings) Scanner Switch 0A - Not used (do not change the settings) Scanner Switch 0B - Not used (do not change the settings)

  • Page 73: Printer Switches

    November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.3. Printer Switches Printer Switch 00 - Not used (do not change the settings) Printer Switch 01 - Not used (do not change the settings) Printer Switch 02 - Not used (do not change the settings) Printer Switch 03 - Not used (do not change the settings) ‘...

  • Page 74: Communication Switches

    SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES 4.2.4. Communication Switches Communication Switch 00 FUNCTION COMMENTS Compression modes These bits determine the compression capabilities to available in receive mode be declared in phase B (handshaking) of the T.30 Bit 1 Modes protocol.
  • Page 75 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 01 FUNCTION COMMENTS If this bit is 0, ECM is switched off for all 0: Off 1: On communications. EFC during transmission If this bit is 0, EFC is switched off during transmission. 0: Off 1: On Wrong connection (0,1) - The machine will not transmit if the last 8 digits...
  • Page 76 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES Communication Switch 02 FUNCTION COMMENTS Burst error threshold If there are more consecutive error lines in the 0: Low 1: High received page than the threshold, the machine will send a negative response. The Low and High threshold values depend on the sub-scan resolution, and are as follows.
  • Page 77 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 06 FUNCTION COMMENTS Dialing requirements: These switches are automatically set to the settings Germany required by each country after a country code (System 0: Disabled 1: Enabled Switch 0F) is programmed. Dialing requirements: Austria 0: Disabled 1: Enabled Dialing requirements:...
  • Page 78 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES Communication Switch 0D FUNCTION COMMENTS The amount of remaining 00 to FF (Hex), unit = 2 kbytes memory below which (e.g., 0C(H) = 24 kbytes) ringing detection (and One page is about 24 kbytes. therefore reception into If this setting is kept at 0, the machine will detect memory) is disabled...
  • Page 79 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 13 FUNCTION COMMENTS Immediate transmission: 00 - FF (Hex) minutes Interval between dialing attempts to the same destination Communication Switch 14 - Not used (do not change the settings) Communication Switch 15 - Not used (do not change the settings) Communication Switch 16 - Not used (do not change the settings) Communication Switch 17 - Not used (do not change the settings)

  • Page 80: G3 Switches

    SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES 4.2.5. G3 Switches G3 Switch 00 FUNCTION COMMENTS Monitor speaker during (0, 0): The monitor speaker is disabled all through the communication (tx and rx) communication. Bit 1 Bit 0 Setting (0, 1): The monitor speaker is on up to phase B in the Disabled T.30 protocol.
  • Page 81 CTC transmission conditions When using ECM, the machine will choose a slower 0: Ricoh mode (PPR x 1) modem rate after receiving PPR once (Ricoh mode) or 1: ITU-T mode (PPR x 4) four times (ITU-T mode). ITU-T: New acronym for the CCITT.
  • Page 82 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES G3 Switch 04 FUNCTION COMMENTS Training error detection 0 - F (Hex); 0 - 15 bits threshold If the number of error bits in the received TCF is below this threshold, the machine informs the sender that the training has succeeded.
  • Page 83 November 28th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES G3 Switch 07 FUNCTION COMMENTS PSTN cable equalizer Use a higher setting if there is signal loss at higher (tx mode) frequencies because of the length of wire between the Bit 1 Bit 0 Setting modem and the telephone exchange.
  • Page 84 SERVICE TABLES AND PROCEDURES November 28th, 1995 BIT SWITCHES G3 Switch 0B FUNCTION COMMENTS Protocol requirements: Program these bit switches manually to match local Europe requirements. 0: Disabled 1: Enabled Protocol requirements: Spain 0: Disabled 1: Enabled Protocol requirements: Germany 0: Disabled 1: Enabled Protocol requirements: France...

  • Page 85: Ncu Parameters

    November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS 4.3. NCU PARAMETERS The following tables give the RAM addresses and units of calculation of the parameters that the machine uses for ringing signal detection and automatic dialing. The factory settings for each country are also given. Most of these must be changed by RAM read/write (Function 06), but some can be changed using NCU Parameter programming (Function 08);...
  • Page 86 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Address Function Unit Remarks 807F06 Not used Do not change the factory setting. 807F07 807F08 PSTN dial tone detection time 20 ms If 807F08 contains FF, the machine pauses for the 807F09 PSTN dial tone reset time (LOW) pause time (address...
  • Page 87 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks PABX detection time for silent 20 ms 807F24 period after ringback tone detected (LOW) PABX detection time for silent 20 ms 807F25 period after ringback tone detected (HIGH) PABX busy tone frequency range Hz (BCD) If this is FF, detection is...
  • Page 88 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Address Function Unit Remarks International dial tone detection 20 ms If 807F38 contains FF, the 807F38 time machine pauses for the pause time (807F3D / International dial tone reset time 807F39 807F3E).
  • Page 89 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks Tone attenuation value in DTMF -dBm x Function 08 (parameter 19). 807F52 signals See Note 6. Tone attenuation value difference -Nx0.5 Function 08 (parameter 20). between high frequency tone and (dB) See Note 6.
  • Page 90 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Address Function Unit Remarks Acceptable ringing signal 1000/ N Function 08 (parameter 02). 807F72 frequency: range 1, upper limit (Hz). Acceptable ringing signal Function 08 (parameter 03). 807F73 frequency: range 1, lower limit Acceptable ringing signal Function 08 (parameter 04).
  • Page 91 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807FA6 Not used Do not change the factory setting. 807FA7 807FA8 807FA9 CNG detection time 20 ms Factory setting: 200 ms 807FAA 20 ms 807FAB CNG on time 20 ms Factory setting: 500 ms 807FAC...
  • Page 92 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Notes 1. If a setting is not required, store FF in the address. 2. Tone frequencies are stored as look-up tables in hex code. For each pa- rameter, there is a look-up table for each country that uses it. The tables are given following this page.
  • Page 93 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Tone Detection Frequency Ranges - PSTN Dial Tone (807F04 - 807F05) - France Germany Italy RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 030 (Default) 410 - 440 410 - 470...
  • Page 94 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Switzerland Portugal Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 385 - 560 315 - 440 290 - 580 380 - 565 305 - 450 280 - 585 370 - 570 0B0 (Default) 295 - 455...
  • Page 95 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Sweden Switzerland Australia RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) FFFF Tone not 380 - 465 385 - 560 (Default) detected 375 - 470 380 - 565 405 - 445 365 - 475 370 - 570...
  • Page 96 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS - PSTN Busy Tone (807F13 - 807F14) France Germany U. K. RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 330 - 470 410 - 470 390 - 485 320 - 460...
  • Page 97 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Sweden Switzerland Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 385 - 560 335 - 540 400 - 450 380 - 565 325 - 545 395 - 455 370 - 570...
  • Page 98 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS - PABX Busy Tone (807F26 - 807F27) Italy Denmark Switzerland, Israel RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 405 - 445 385 - 560 400 - 450 415 - 455...

  • Page 99: Default Settings

    November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Default Settings The factory settings are quoted either in hexadecimal code (the actual con- tents of the RAM address) if there is an H after the value in the table, or in decimal (converted from the actual hex contents of the RAM address) if there is no H after the value.
  • Page 100 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807F08 807F09 807F0A 807F0B 807F0C France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F0D 807F0E...
  • Page 101 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F12 807F13 807F14 807F17 807F18 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F1B 807F1C...
  • Page 102 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807F20 807F21 807F22 807F23 807F24 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F25 807F26...
  • Page 103 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F2C 807F2D 807F2E 807F2F 807F30 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F31 807F32...
  • Page 104 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807F38 807F39 807F3A 807F3B 807F3C France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F3D 807F3E...
  • Page 105 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F42 807F43 807F44 807F45 807F46 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F47 807F48...
  • Page 106 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807F4C 807F4D 807F4E 807F4F 807F50 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F51 807F52...
  • Page 107 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F5A 807F5B 807F5C 807F5D 807F5E France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F5F 807F65...
  • Page 108 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807F74 807F75 807F76 807F77 807F78 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F79 807F7A...
  • Page 109 November 28th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807FA2 807FA5 807FAA 807FAB 807FAC France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FAD 807FB3...
  • Page 110 SERVICE TABLES AND PROCEDURES November 28th, 1995 NCU PARAMETERS Country 807FB7 807FB8 807FB9 807FBD 807FDA France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia 4-64...

  • Page 111: Dedicated Transmission Parameters

    November 28th, 1995 SERVICE TABLES AND PROCEDURES DEDICATED TRANSMISSION PARAMETERS 4.4. DEDICATED TRANSMISSION PARAMETERS Each Quick Dial Key and Speed Dial Code has four bytes of programmable parameters allocated to it. If transmissions to a particular machine often expe- rience problems, store that terminal’s fax number as a Quick Dial or Speed Dial, and adjust the parameters allocated to that number.

  • Page 112: Parameters

    SERVICE TABLES AND PROCEDURES November 28th, 1995 DEDICATED TRANSMISSION PARAMETERS 4.4.2. Parameters The initial settings of the following parameters are all FF(H) - all the parame- ters are disabled. Byte 0 FUNCTION AND COMMENTS CCITT T1 time If the connection time to a particular terminal is longer than the NCU parameter setting , adjust this byte.
  • Page 113 November 28th, 1995 SERVICE TABLES AND PROCEDURES DEDICATED TRANSMISSION PARAMETERS Byte 2 FUNCTION COMMENTS Initial Tx modem rate If training with a particular remote Bit 3 Setting (bps) terminal always takes too long, the Not used initial modem rate may be too high. 2,400 Reduce the initial Tx modem rate 4,800...

  • Page 114: Service Ram Addresses

    SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES 4.5. SERVICE RAM ADDRESSES CAUTION Do not change the settings which are marked as “Not used” or “Read only.” 800000(H) - RAM Reset Level 1 Change the data at this address to 00 (H). Then switch the machine off and on to reset all the system settings before using this RAM.
  • Page 115 November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8000A2(H) - User parameter switch 02 Bit 0: Forwarding mark printing on forwarded messages 0: Disabled, 1: Enabled Bit 1: Not used Bit 2: Not used Bit 3: TSI included in transmitted messages 0: Disabled, 1: Enabled Bits 4 to 7: Not used 8000A3(H) - User parameter switch 03 (Automatic report printout)
  • Page 116 SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES 8000A8(H) - User parameter switch 08 Bit 0 and 1: Multi-copy reception (optional memory card required) Setting Disabled Faxes from senders whose RTIs/CSIs are specified for this feature are multicopied. Faxes from senders whose RTIs/CSIs are not specified for this feature are multicopied.
  • Page 117 November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8000AD(H) - User parameter switch 13 Bits 0 and 1: PSTN access method from behind a PABX Setting PSTN Loop start Ground start Flash start Bit 2 to 7: Not used 8000AE - 8000AF(H) - User parameter 14 to 15 Not used 8000B9(H) - User function 62 settings...
  • Page 118 SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES 8000C0(H) - TIJ switch 00 Bit 0: Main scan magnification setting (User function 62) 0: 100%, 1: 94% Bit 1: Sub scan magnification setting (User function 62) 0: Same as the main scan setting. 1: Auto setting.
  • Page 119 November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES TIJ switches 02 and 03 correspond to the printer emulation switch settings of user function 64. (Please refer to Emulation Switch Settings in the operation manual.) The settings are different for BJ mode and LQ mode which is set by bit 2 of address 8000C3(H) (printer emulation switch digit 11).
  • Page 120 SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES Epson LQ mode: (when 8000C3 bit 2 is set to 1) 8000C2(H) Bit 0: Do not adjust. Bit 1: Text scale mode. 0: Off, 1: On Bit 2: Do not adjust. Bit 3: Character set.
  • Page 121 November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 800140 to 800146(H) - Last power off time (Read only) 800140(H) - Year (BCD) 800141(H) - Month (BCD) 800142(H) - Day (BCD) 800143(H) - 00: Monday, 01: Tuesday, 02: Wednesday, .., 06: Sunday 800144(H) - Hour 800145(H) - Minute 800146(H) - Second...
  • Page 122 SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES 8002A5 to 8002A6(H) - Scanning top margin adjustment 8002A7 to 8002A8 (H) - Scanning bottom margin adjustment Refer to section 5.12 for details. 8002ED to 8002E4 (H) - Scanner Video Processing Parameters Bit no.
  • Page 123 November 28th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 802A0F to 802C20(H) - Latest 10 error communication records One error communication record consists of 53 bytes. The format is as follows: 1st byte - Header Bit 0: Communication result 0: OK, 1: NG Bit 1: Document jam 1: Occurred...
  • Page 124 SERVICE TABLES AND PROCEDURES November 28th, 1995 SERVICE RAM ADDRESSES 15th byte - Final modem rate Bits 0 to 2: Final modem speed Note: 12.0k and 14.4k are not available with this model. Bit 0 Bit 1 : 2.4 k : 4.8 k : 7.2 k : 9.6 k...

  • Page 125: Special Tools And Lubricants

    November 28th, 1995 SERVICE TABLES AND PROCEDURES SPECIAL TOOLS AND LUBRICANTS 39th to 41st byte - 1st error code and page number where the error occurred 39th byte - Page number where the error occurred (Hex) 40th byte - Error code (low - BCD) 41st byte - Error code (high - BCD) 42th to 44th byte - 2nd error code and page number where the error occurred 45th to 47th byte - 3rd error code and page number where the error occurred...

  • Page 126: Removal And Adjustment

    November 28th, 1995 REMOVAL AND ADJUSTMENT COVERS 5. REMOVAL AND ADJUSTMENT CAUTION Unplug the machine from the power outlet before removing any covers. The danger of explosion exists if the lithium battery on the FDU is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer’s instructions.

  • Page 127: Upper Cover [A] And Ic Card Cover [B]

    REMOVAL AND ADJUSTMENT November 28th, 1995 Paper Feed Unit and Roller Assembly 5.1.2. Upper Cover [A] and IC Card Cover [B] H505R502.wmf A: Upper Cover (4 screws) B: IC Card Cover (1 screw) First, remove the operation panel assembly (see section 5-1-1). 5.2.

  • Page 128: Paper Feed Roller Assembly [A]

    November 28th, 1995 REMOVAL AND ADJUSTMENT PCBs 5.2.2. Paper Feed Roller Assembly [A] H505R504.wmf 5.3. PCBs Before removing all PCBs: First, remove the operation panel assembly and upper cover (see section 5-1) and the paper feed unit (see section 5-2-1). 5.3.1.

  • Page 129: Ijc [A]

    REMOVAL AND ADJUSTMENT November 28th, 1995 PCBs 5.3.2. IJC [A] H505R506.WMF A: IJC (3 screws, 12 connectors) IJC Connectors Ink End Sensor Top Cover Sensor Front Cover Sensor Release Lever Sensor H505R514.wmf Note: Before replacing the IJC, print the EEPROM information sheet with service function 11 and check the amount of ink received to the ink absobers.

  • Page 130: Fdu [A]

    November 28th, 1995 REMOVAL AND ADJUSTMENT PCBs 5.3.3. FDU [A] H505R508.WMF A: FDU (2 screws, 7 connectors) 5.3.4. NCU [A] H505R507.WMF A: NCU (2 screws, 2 connectors) Note: RAM backup lasts for a maximum of 1 hour (when the battery is fully charged).

  • Page 131: Contact Image Sensor [A]

    REMOVAL AND ADJUSTMENT November 28th, 1995 SCANNER 5.4. SCANNER 5.4.1. Contact Image Sensor [A] First, remove the operation panel assembly (see section 5-1-1), upper cover (see section 5-1-2), and paper feed unit (see section 5-2-1). H505R509.WMF A: Contact Image Sensor Assembly (1 screw, 1 connector) 5.4.2.

  • Page 132: Printer

    November 28th, 1995 REMOVAL AND ADJUSTMENT PRINTER 5.5. PRINTER 5.5.1. Chassis [C] First, remove the operation panel assembly (see section 5-1-1), upper cover (see section 5-1-2), paper feed unit (see section 5-2-1), and all PCBs. H505R511.WMF A: Right Bracket (1 screw, 1 connector) Note: The speaker connector should already be disconnected.

  • Page 133: Thermal Ink Jet (Tij) Unit [A] And Paper Output Guide [B]

    REMOVAL AND ADJUSTMENT November 28th, 1995 PRINTER 5.5.2. Thermal Ink Jet (TIJ) Unit [A] and Paper Output Guide [B] H505R513.WMF A: TIJ Unit (1 screw, 2 hooks) B: Paper Output Guide 5.5.3. Purge Unit H505R516.wmf A: Purge Unit (1 screw) B: Slide Pin When removing the purge unit, slide the slide pin as shown in the diagram.

  • Page 134: Ink Absorbers

    November 28th, 1995 REMOVAL AND ADJUSTMENT PRINTER 5.5.4. Ink Absorbers H505R515.WMF A: Ink Absorber Sheet B: Upper Ink Absorber C: Lower Ink Absorber D: Bend Sections Note: When reinstalling the ink absorbers, ensure that the bend sections are stood upright. When you have replaced the ink absobers, make sure that you also initialize the EEPROM on the IJC (service function 11).

  • Page 135: Copy Quality Troubleshooting

    November 28th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6. TROUBLESHOOTING 6.1. COPY QUALITY TROUBLESHOOTING If there is a copy quality problem that cannot be solved easily, try using the following troubleshooting procedures, while referring to the point-to-point dia- gram. The procedures may not be exhaustive, but they may help you to find the problem.

  • Page 136: Blank Copies

    TROUBLESHOOTING November 28th, 1995 COPY QUALITY TROUBLESHOOTING When there is a copy quality problem, do the following. Print the nozzle pattern with user function 35. In this test pattern, the machine uses all the nozzles installed in the printer head. If the test printout shows any defects such as thin, unclear printing or no printing, do the printer head cleaning procedure more than 5 times (refer to the Operation Manual).

  • Page 137: Black Copies

    November 28th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.2. Black Copies Possible Cause (Scanner) The contact image sensor is defective. Action: 1. Check the connection between the IJC (CN10) and the contact image sensor. 2. Replace the contact image sensor. 6.1.3. Dirty Background Possible Cause (Scanner) Scanner shading correction error or wrong threshold.

  • Page 138: Vertical Black Lines

    TROUBLESHOOTING November 28th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.5. Vertical Black Lines H505T503.wmf H505T512.wmf Possible Cause (Scanner) Defective contact image sensor element(s) Dirt or dust on the exposure glass Action: 1. Clean the exposure glass and the shading plate. 2. Replace the contact image sensor.

  • Page 139: Vertical White Lines

    November 28th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.6. Vertical White Lines H505T506.wmf H505T512.wmf Possible Cause (Scanner) Defective image sensor element(s) Action: Replace the image sensor.

  • Page 140: Horizontal White Lines

    TROUBLESHOOTING November 28th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.7. Horizontal White Lines H505T509.wmf H505T511.wmf Possible Cause (Printer) Malfunction in the ink jet printing mechanism Defective printer head Action: 1. Print the nozzle test pattern (see page 6-2) and do the printer head clean- ing procedure more than 5 times (see the Operation Manual).

  • Page 141: Faint Copies

    November 28th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.8. Faint Copies H505T504.wmf H505T512.wmf Possible Causes (Scanner) Dirty shading plate and/or exposure glass Contact image sensor (LED, sensor element) defect Action: Clean the white plate on the ADF. Replace the image sensor. Possible Causes (Printer) The ink cartridge is empty.

  • Page 142: Misaligned Output (Data Shifted To The Right Or Left)

    TROUBLESHOOTING November 28th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.9. Misaligned Output (Data shifted to the right or left) Possible Cause (Scanner) Incorrect setting of the document guide Action: Align each side of the document to the document guides. Also, check that an acceptable type of document is being used. Possible Cause (Printer) The printer paper is not set correctly.

  • Page 143: Mechanical Problems

    November 28th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 6.2. MECHANICAL PROBLEMS 6.2.1. ADF/Scanner 1. Non-feed Possible Cause: An incorrect type or size of document is used. The operation panel is not properly closed. The ADF feed roller is dirty or worn out. Incorrect positionng of the separation pad.
  • Page 144 TROUBLESHOOTING November 28th, 1995 MECHANICAL PROBLEMS 2. Jam Possible Cause: An incorrect type or size of document is used. The document is too long. The scanner rollers (feed, R1, and R2 rollers) are dirty. Obstruction in the document paper path. The scan line sensor is defective.

  • Page 145: Skew

    November 28th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Skew Possible Cause: An incorrect type or size of document is used. The document guide is not set properly. The operation panel is not properly closed. The scanner rollers (feed, R1, and R2 rollers) are dirty. Obstruction in the document paper path.

  • Page 146: Non-Feed

    TROUBLESHOOTING November 28th, 1995 MECHANICAL PROBLEMS 6.2.2. Printer 1. Non-feed Possible Cause: A non-recommended type of paper is being used. The paper feed roller(s) is not installed properly. The paper feed motor is defective. Action: 1. Check that a correct type of paper is being used. 2.

  • Page 147: Multi-Feed

    November 28th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Skew Possible Cause: A non-recommended type of paper is being used. The corner separators in the paper feed unit are out of position. The paper feed rollers are worn out or damaged. Obstructions in the paper path. Malfunction in the registration mechanism.

  • Page 148: Service Call Conditions

    TROUBLESHOOTING November 28th, 1995 SERVICE CALL CONDITIONS 6.3. SERVICE CALL CONDITIONS If "Call Service" is shown on the display, one of the following conditions has occurred. Symptom SC Code Carriage control error: This is a carriage position error. 5-51 Cleaning error: Cleaning operation error. 5-52 Temperature error: The temperature inside the machine is too high.

  • Page 149: Error Codes

    November 28th, 1995 TROUBLESHOOTING ERROR CODES 6.4. ERROR CODES If an error code occurs, retry the communication. If the same problem occurs, try to fix the problem as suggested below. Note that error codes 4-00, 01, 02, and 10 only appear in the error code display and on the service report. Code Meaning Suggested Cause/Action...
  • Page 150 TROUBLESHOOTING November 28th, 1995 ERROR CODES Code Meaning Suggested Cause/Action 0-07 No post-message Check the line connection. response from the other Check the FDU - NCU connectors. end after a page was sent Replace the NCU or FCE. The other end may have jammed or run out of paper. The other end user may have disconnected the call.
  • Page 151 November 28th, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 0-20 Facsimile data not Check the line connection. received within Check the FDU - NCU connectors. 6 s of retraining Replace the NCU or FCE. Check for line problems. Try calling another fax machine. Try adjusting the reconstruction time for the first line and/or rx cable equalizer setting.
  • Page 152 TROUBLESHOOTING November 28th, 1995 ERROR CODES Code Meaning Suggested Cause/Action 0-30 The other terminal did Check the line connection. not reply to NSS(A) in AI Check the FDU - NCU connectors. short protocol mode Try adjusting the tx level and/or cable equalizer settings.
  • Page 153 November 28th, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 4-10 Communication failed Get the ID Codes the same and/or the CSIs because of ID Code programmed correctly, then resend. mismatch (Closed The machine at the other end may be defective. Network) or Tel.
  • Page 154 TROUBLESHOOTING November 28th, 1995 ERROR CODES Code Meaning Suggested Cause/Action 6-09 G3 ECM - ERR received Check for a noisy line. Adjust the tx levels of the communicating machines. See code 6-05. 6-10 G3 ECM - error frames Check for line noise. still received at the other Adjust the tx level (use NCU parameter 01 or the end after all...

  • Page 155: Electrical Component Defects

    November 28th, 1995 TROUBLESHOOTING ELECTRICAL COMPONENT DEFECTS 6.5. ELECTRICAL COMPONENT DEFECTS 6.5.1. Defective Sensor Table Sensor Symptoms if Defective Document sensor "CLEAR ORIGINAL" or "DIAL FAX NO" is displayed at power-on. "SET DOCUMENT" is still displayed after a document is placed in the ADF. Scan line sensor "CLEAR ORIGINAL"...
  • Page 156 Head Rank Control Head Power Control Heater Drive (HT0) Feed Roller Sensor [ 5] (H:HP) +24VM Heater Drive (HT1) Scanner LED Drive Head Voltage (HVH) Clock CR Motor Control (PWMB) Head Voltage (HVH) COM1 CR Motor Control (PWMA) Sub Heat Drive Line Synchronization Signal PF Motor Control (LIB1) COM1...

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