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Ricoh FAX7000L Field Service Manual

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RICOH FAX7000L
FIELD SERVICE MANUAL
WARNING
THIS MACHINE CONTAINS A LASER BEAM GENERATOR. LASER
BEAMS CAN CAUSE PERMANENT EYE DAMAGE. DO NOT OPEN THE
LASER UNIT OR LOOK ALONG THE LASER BEAM PATH WHILE THE
MAIN POWER IS ON.

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Summary of Contents for Ricoh FAX7000L

  • Page 1 RICOH FAX7000L FIELD SERVICE MANUAL WARNING THIS MACHINE CONTAINS A LASER BEAM GENERATOR. LASER BEAMS CAN CAUSE PERMANENT EYE DAMAGE. DO NOT OPEN THE LASER UNIT OR LOOK ALONG THE LASER BEAM PATH WHILE THE MAIN POWER IS ON.

  • Page 3: Table Of Contents

    CONTENTS SECTION 1. INSTALLATION 1-7-7. TTI #1 and TTl #2 - Function 85 ..1-31 1-7-8. CSI - Function 86 (W. Germany: Service Function 11) . . .1-31 1-1. Specifications ... 1-1 1-7-9.
  • Page 4 4. NCU Parameter Programming ..2-23 2-3-14. G4 CCU Parameters - Function 16 . . 2-42 2-3-5. RAM - Function 03 ..2-24 2-3-15. System Data List - Function 17 ..2-42 1.
  • Page 5 3-2. ADF and Scanner ..3-6 3-6. Printing - Development ..3-31 3-2-1. Document Feed and Pick-up Rollers . . 3-6 3-6-1. Development Unit ..3-31 3-2-2.
  • Page 6 SECTION 4. SERVICE TABLES 3-1. System Start - Function 1 ..5-65 3-2. Error Code Display - Function 2 ..5-66 3-3. File Correction - Function 3 ..5-67 4-1.
  • Page 7 1 0 . P S U ....7-26 11. G3 CCU ... . .7-28 12. G3 NCU ... . . 7-30 13.
  • Page 8 SECTION 1...

  • Page 9: Section 1. Installation

    SECTION 1. INSTALLATION 1-1. Specifications ... 1-1 1-7. Initial Programming ..1-27 1-2. Features ....1-4 1-7-1.

  • Page 10: Specifications

    1-1. Specifications Type Console-type transceiver PSTN, PABX Circuit Connection Direct couple Auto Doc. Feed Manual Doc. Feed Document size 105 - 1,200 mm Length: 105 - 600 mm [4.13 - 47.2 ins] [4.13 - 23.6 ins] Unlimited length is available. User must support documents longer than 420 mm [16.5 ins] 105 - 304 mm...
  • Page 11 Main scan: Standard, Detail - 200 dpi (7.87 dots/mm) Scan resolution Super Fine - 400 dpi (15.75 dots/mm) Options: 8, 16 dots/mm Standard - 100 dpi (3.94 lines/mm) Sub scan: Detail - 200 dpi (7.877 lines/mm) Super Fine - 400 dpi (15.75 lines/mm) Options: 3.85, 7.7, 15.4 lines/mm 300 x 300 dpi (11.8 x 11.8 dots per mm) is also available after programming a user function key...
  • Page 12 Paper size Letter [8.5 x 11”] Legal [8.5 x 14“] Maximum printout width 250 mm [9.8 ins] Maximum printer resolution Main scan - 400 dots/inch [15.75 dots/mm] Sub scan - 400 lines/inch [15.75 dots/mm] Power supply 220 Vac + 22/-33 V; 50/60 Hz +/- 1 Hz 240 Vac + 24/-36 V;...

  • Page 13: Features

    1-2. Features Equipment Default Availability Built-in handset Connection for external tel. Base cabinet Manual feed for thick originals o = Used Monitor speaker x = Not used Microphone Speakerphone Remaining memory indicator (Function mode) o Video Processing Default Availability Features Contrast (Lighten, Normal, Darken) See Note 1.
  • Page 14 Default Communication Features - Availability Automatic Scanning and storing during tx or rx Four redials Redialling G2, G3 compatibility Automatic fallback Confidential: Not used in W. Germany Confidential/substitute reception Page retransmission from memory Default Availability Communication Features - User Selectable Auto/Manual reception On hook dial 2,000...
  • Page 15 Communication Features - Availability Default User Selectable (continued) Auto-reduction override option Immediate redial Auto-answer delay time Hold Voice Request Automatic Voice Message Not used in W. Germany Communication Features - Availability Default Service Selectable Closed network MV1200 compatibility Short preamble Well log (tx) Protection against bad connections E F C...
  • Page 16 Availability Default Special Communication Features Transmission from memory - immediate - send later - max no. of addresses/file - max no. of files - max no. of addresses over all files 1,020 See Note 3 (p. 1-13). Send Later Confidential Transmission Not used in W.
  • Page 17 Availability Default Special Communication Features (Continued) Polling Reception - free/secured option - stored ID override - poll later: max no. of files : max addresses/file 1,020 See Note 3 (p. 1-13). : max addresses overall Batch transmission Forwarding Transmission deadline Notify Default Other Features...
  • Page 18 Reports - Automatic Availability Default Journal (optional) W. Germany/Italy: o, Others: x Charge Control Report Tx Result Report (optional) Error Report (optional) Transfer Result Report Not used in W. Germany Mode Change Report W. Germany: o, Others: x Polling File List Memory Report (optional) Power Failure Report Polling Result Report (optional)
  • Page 19 Reports - Service Availability Default Group 3 Protocol Dump Lists Auto Service Call System Parameter List RAM Address Dump Hard Disk Dump Handshake Logging Dump (For G3CCU and SPU) Error Code Logging Dump Transmission Status Report System Data List Service Monitor Report User Programming Availability Default...
  • Page 20 User Programming Availability Default (Continued) Automatic Voice Message recording Automatic Voice Message playback Automatic Voice Message on/off Quick Dial/Group programming Polling ID code RTI/TTI/CSl See Note 4. RTI #2, TTl #2 Direct entry of labels and identifiers Changing the contents of a file Polling file clearance Memory file clearance Own telephone number...
  • Page 21 Service Mode and Availability Default System Tests Dedicated Tx Parameters Printout of all memory files Bit switches RAM rewriting - to local fax only Error code display Printer status display Counter check and rewrite Chequered mark on 1st page on/off Number of copies per printout Rx fax printout in reverse page order Serial number programming...
  • Page 22 Notes Contrast can also be selected in halftone mode. The keystroke programs are stored in Quick Dial Keys, so the no. of programmed Quick Dial Keys plus the no. of programs plus the number of user function keys programmed as Quick Dial Keys can- not exceed 50 (user function keys can also be stored as Quick Dial Keys if more than 5 keys are needed).

  • Page 23: Installation Requirements

    1-3. Installation Requirements 1-3-1. Environment Temperature range: 17 to 28 degrees C [63 to 82 degrees F] Humidity range: 40 to 70 %Rh - no condensation Ventilation: Room air should turn over at least three times per Ambient dust: Less than 0.15 mg/m [4 x 10¯³...

  • Page 24: Minimum Space Requirements

    1-3-2. Minimum Space Requirements 1-15...

  • Page 25: Power Requirements

    1-3-3. Power Requirements Voltage • 220 Vac + 22/-33 V, or 240 Vac + 24/-36 V, 50/60 Hz, capable of supplying more than 10 A Power Outlet • Must be properly grounded • If possible, do not connect other equipment to the same outlet. •...
  • Page 26 Remove the packing clips from the carton. Remove the two cushion blocks. Take the accessories box and the machine out of the carton. Open the vinyl envelope and take out the machine. Peel off the packing tapes from the outside of the machine.

  • Page 27: Accessory Check List

    1-5. Accessory Check List Open the accessories box and check that the following items are present. 1. Vinyl Gloves 1 set 2. Plastic Bag 3. Toner Cartridges 4. Cleaning Pad 5. Cassettes (upper and lower) 6. Paper Size Actuators 7. Paper Size Decals 2 sets 8.
  • Page 28 1-18a...

  • Page 29: Installation Procedure

    1-6. Installation Procedure 1-6-1. Master Unit Remove the three plastic wedges from the master unit. Caution: Do not remove the green plastic cover. Open the upper unit and insert the master unit into the machine with the green plastic cover facing out. Take off the green plastic cover.

  • Page 30: Toner

    1-6-2. Toner 1. Open the right cover. 2. Shake a toner cartridge well. 3. Remove the cartridge crank from the cartridge. 4. Set the pins on the toner cartridge into the slots on the development unit. 5. Rotate the cartridge up until it snaps into position. 1-20...
  • Page 31 Fit the cartridge crank (or winding lever) onto the pin on the bottom left of the cartridge. Turn the crank (or winding lever) clockwise to strip off the cartridge seal, until you see the yellow band. Then remove the cartridge crank (or winding lever). CAUTION: If the yellow band is not showing, the plas- tic strip could become caught in the toner mixing mechanism, leading to machine...

  • Page 32: Cassettes

    1-6-3. Cassettes Remove the tape from the trays in the upper and lower cassettes. Put some copy paper in the cassettes, attach the cas- sette top covers, and install the cassettes. Note: The cassettes are set up for Letter-size paper. If the user wishes to use a different paper size than this, modify the cassette(s) as follows.

  • Page 33: Telephone

    1-6-4. Telephone 1. If you connect a telephone to the rear of the machine, make sure that the type of dialling signal generated by the telephone matches the type of signal that the local exchange accepts (pulse or tone dialing). 1-6-5.

  • Page 34: Other Components

    1-6-6. Other Components Attach the function label. 2. Attach the copy tray. 3. Attach the document tray. 1-6-7. Power Connection Connect the power cord to a supply of the type specified on page 1-16. Voltage must not fluctuate more than the limits specified on page 1-16.

  • Page 35: Hard Disk Initialization

    1-6-8. Hard Disk Initialization 1. Switch the main power on. If an error message is displayed at this time, there is a problem with the hard disk. See page 5-70 (Power-up Error Codes). 2. Within 3 seconds of switching the power on, press Function, then *, then #.
  • Page 36 5. When ENTER PASSWORD is displayed, enter 1988, then press Yes. 6. When “Initialize System? Y/N” is displayed, press Yes. 7. Enter the bad spot information listed on the decal inside the lower front cover. The format of data on the label is shown in the following example: CYL HD BYTE 1 8132 In the above example, press 31918132.

  • Page 37: Initial Programming

    1-7. Initial Programming After installation, the following items should be programmed. They can all be programmed by the user. They can all be programmed in sequence by using Function 81. In this manual, each individual procedure will be ex- plained. 1-7-1.

  • Page 38: Fax Terminal's Telephone Number - Function 81

    1-7-2. Fax Terminal’s Telephone Number - Function 81 If this number is not programmed, Transfer Request is impossible. Make sure that the machine is in standby mode. Press Function, then enter 80, then enter 2222. Enter 81, then press Yes. Enter the fax terminal’s telephone number.

  • Page 39: Polling Id Code - Function 82

    1-7-4. Polling ID Code - Function 82 This four-digit code is necessary for secured polling, closed network communication, and transfer re- quest. All terminals in these types of communications must decide on the same ID code or the communication will fail. 1.

  • Page 40: Rti #1 And Rti #2 - Function 84

    1-7-6. RTI #1 and RTI #2 - Function 84 The RTI (Remote Terminal Identification) identifies your terminal at the other end. It is displayed on the operation panel at the other end during communication. RTI #1 will normally be used. However, when you program a number as a Speed Dial or Quick Dial, you can select either RTI #1 or RTI #2 for use when sending to that terminal.

  • Page 41: Tti #1 And Ttl #2 - Function 85

    1-7-7. TTI #1 and TTl #2 - Function 85 The TTl (Transmit Terminal Identification) is another label which identifies you at the other end. It is printed at the other end on the top line of each page that you send. Each TTl can have up to 32 charac- ters.

  • Page 42: Date And Time - Function 87

    1-7-9. Date and Time - Function 87 1. Make sure that the machine is in standby mode. 2. Press Function, then enter 80, then enter 2222. 3. Enter 87. 4. Use the left and right arrows of the scroll key to highlight the parts of the display that need changing, and type in the new values at the ten key pad.

  • Page 43: Reception Mode - Function 88

    1-7-11. Reception Mode - Function 88 Select either Automatic Reception (the machine receives fax messages automatically without intervention by the user) or Manual Reception (the user must be present by the machine when a fax message comes in). Make sure that the machine is in standby mode. Press Function, then enter 80, then enter 2222.

  • Page 44: Charge Control Parameter Programming

    1-8. Charge Control Parameter Programming Using charge control, the user can check the cost of each call made with the machine. Charge control is only available on numbers that have been stored using Quick Dial, Speed Dial, Speed Dial # 1, or Speed Dial # 2, and is controlled using option 7 of the option menu for Quick/Speed Dial programming.
  • Page 45 Only two rows (16 codes) are visible at once. More rows in the charge control table can be seen by press- ing the down arrow on the cursor key. Press the left and right arrows on the cursor key to highlight the number to be changed. Type in any changes as required.
  • Page 46 B: This shows the number of charge zones. For example, if there are seven zones, enter 07. C to L: These 10 ASCII codes show the basic charge unit. A table of ASCII codes follows at the end of this section.
  • Page 47 Example periods: 2 Number of charge Number of charge zones: 7 Basic charge unit: 0.23 DM (Deutschmarks) Charge periods: (1) 08:00 to 18:00, (2) 18:00 to 08:00 Times allowed (seconds) in charge period 1 for each zone: 3.8, 10.7, 12, 12, 20, 45, 480 Times allowed (seconds) in charge period 2 for each zone: 3.8, 10.7, 16, 38.6, 38.6, 67.5, 720 The user wishes to see the times allowed for charge period 1 when programming Quick/Speed Dial.
  • Page 48 ASCII Codes Do not use other codes than listed here, or Japanese characters will appear. S y m b o l Code Symbol Symbol Code Symbol Code Code Space & < Comma > Full stop Inverted v —...

  • Page 49: Transporting The Machine

    1-9. Transporting the Machine When moving the machine to a new location, it is important to move the hard disk read/write head back to its shipping position. Do the following procedure. Press Function, then enter 80 at the ten-key pad. Enter 1988 then press Yes.
  • Page 50 SECTION 2 P R O G R A M M I N G , T E S T I N G ,...

  • Page 51: Section 2. Programming, Testing, And Printing Reports

    SECTION 2. PROGRAMMING, TESTING, AND PRINTING REPORTS 2-1. Operation Panel ..2-1 2-3-8. Service Monitor Report Printing - 2-2. User Level Programming ..2-5 Function 06 ... . 2-31 2-2-1.
  • Page 52 2-4. Bit Switches ... . 2-47 1. SCU - Factory Settings ..2-47 2. SCU - Bit Switch Tables ..2-49 3.

  • Page 53: Operation Panel

    2-1. Operation Panel...
  • Page 54 1. Indicators Transmitting Indicator Clear Original Indicator Blinks when a document has jammed in the scanner. Lights when the machine is sending a fax message. Clear Copy Indicator Receiving Indicator Blinks when paper has jammed in the printer. Lights when the machine is receiving a fax message. Add Paper 1 Indicator Storing Indicator Lights when the machine is storing a fax message to the...
  • Page 55 2. Character Display 8. Selector Keys Displays prompts, status, warnings, and selected modes. Digital and Analog Indicators and Key When dialling, press this key to light the indicator that cor- 3. Power Indicator responds with the type of network that will be used for Lights when the power switch is on and when power is dialling.
  • Page 56 9. Quick Dial Keys Clear Key You can program each of these to dial a number, a This is used during programming to clear the last char- group of numbers, or enter a sequence of numbers acter entered, or to clear the character at the cursor, and settings, with just one touch.

  • Page 57: User Level Programming

    2-2. User Level Programming 2-2-1. Function List To select a function, press the Function key, then enter the number at the ten key pad. The functions are ex- plained very briefly below. For full details, see the Operator’s Manual. Function Details Function List This displays a menu of functions 11 to 14.
  • Page 58 Function Details Function List Displays a list of functions 41 to 45 Changing the contents Using this function, you can add or remove an address from a of a stored memory file memory or polling file, or change the time when the communica- tion is scheduled to start, or you can delete the file altogether.
  • Page 59 Function Details Function List Displays a list of functions 51 to 57. Programming Speed Enter the two-digit code that you wish to program, then press Yes. Dial Press the line selector key to select either Analog or Digital. Enter the number, then press Yes. Press Yes twice more then press No to start to enter another Speed Dial Code.
  • Page 60 Function Details Programming the User Keys F1 to F5 can be programmed as user function keys. F6 is not Function Keys programmable; it is used for storing keystroke programs. Quick Dial Keys can also be programmed as user function keys. Press the key that you wish to program, then press Yes.
  • Page 61 Function Details Printing the Speed Dial This is a list of all telephone numbers stored as Speed Dial Codes. List Printing the Quick Dial This is a list of all telephone numbers stored as Quick Dial Keys. List Printing the Program This is a list of all the stored keystroke programs.
  • Page 62 Function Details Entering initial setting See page 1-27 for details. mode See pages 1-27 and 1-28 for details. You can also use this function Storing the country code, fax terminal’s as a starting point for running through all the initial settings. own telephone num- ber, and transfer sta- tion number...
  • Page 63 Function Details Programming the See page 1-33 for details. reception mode and telephone line type This timer controls the on/off timing of the fusing lamp. The user Programming the heater on/off timer can keep the fusing lamp off when absent; received faxes will be kept on the hard disk.
  • Page 64 Function Details The tx, rx, scan, and print counters are displayed. Press Function Checking the counters after viewing the counters. To store a voice message, press 1, pick up the handset, press Storing the voice mes- sage, playing back the Start, and speak.

  • Page 65: Others

    2-2-2. Others 1. Multicopy Mode You can use the machine to make up to 99 copies of an original. Place the document in the feeder, press Copy, type in the number of copies that you need, use the scroll key to select the required copy paper size, then press Start.

  • Page 66: Service Level Functions

    Technical Services for assistance. See page 2-22. 2: G3 dump 2 - Use this to print a table of recent software com- mands. Send this list to Ricoh Technical Services if there is a communication problem. See page 2-22. 3: NCU data - Use this to adjust NCU parameters for ringing detec- tion and auto-dialling.
  • Page 67 3: G3 CCU Handshake List - Use this to print a table of software commands that recently passed between the SCU and the G3 CCU. Send this list to Ricoh Technical Services if there is an unsolv- able hardware or communication problem. See page 2-27.
  • Page 68 Function Details Parameter List This report lists information such as bit switch settings and current counter values. See page 2-31. Serial Number Use this to program the machine’s serial number. This number is used by the Auto Service Call administration system. See page 2- Tests 0: Printer test patterns.
  • Page 69 G4 CCU Parameters See the service manual for the Group 4 interface kit. System Data List This report contains software data. Pass this report to Ricoh Tech- nical Services if the machine malfunctions. See page 2-42. Set Hard Disk to Ship-...

  • Page 70: Entering And Exiting Service Mode

    2-3-2. Entering and Exiting Service Mode ENTERING SERVICE MODE Do the following procedure. 1. Make sure that JP19 is installed on the G3 NCU board. 2. Press Function then enter 80 at the keypad. 3. Enter 1988. 4. Press Yes. Page 1 of the service mode menu is now displayed.

  • Page 71: Bit Switches - Function 01

    2-3-3. Bit Switches - Function 01 Enter the service mode. See page 2-18. When the service mode menu is displayed, enter 01 at the ten-key pad. Either: • Program SCU bit switches - press 0. • Program G3 CCU bit switches - press 1. •...

  • Page 72: Ccu - Function 02

    2-3-4. CCU - Function 02 1. G3 CCU Test Mode Enter the service mode. See page 2-18. When the service mode menu is displayed, enter 02 at the ten-key pad. When the CCU, test menu is displayed, press 0. On the LCD, the highlighted number on the left indicates the tone currently selected. The name of the tone is given in the bottom right corner.
  • Page 73 00 Tone 2100 Hz 15 DTMF 770 Hz 42 ITA 390-470 30 DTMF 7 16 DTMF 852 Hz 43 AUS 380-510 01 G2 carrier 31 DTMF 8 02 G3 9600 bps 17 DTMF 941 Hz 32 DTMF 9 44 BEL 405-470 45 DEN 340-510 03 V.21 1650 Hz 18 DTMF 1209 Hz...

  • Page 74: G3 Dump List 1

    2. When the service mode menu is displayed, enter 02 at the ten-key pad. 3. When the CCU test menu is displayed, press 2. 4. Press Start to print the list. A table of software commands is printed. Pass this list on to Ricoh Technical Services.

  • Page 75: Ncu Parameter Programming

    4. NCU Parameter Programming 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, press 02. 3. When the CCU test menu is displayed, press 3. 4. The data stored in NCU parameter 1 is displayed. Press the up arrow on the scroll key to increment the parameter number, or press the down arrow to decrement it.

  • Page 76: Ram Read/Write

    2-3-5. RAM - Function 03 1. RAM Read/Write Enter the service mode. See page 2-18. When the service mode menu is displayed, enter 03 at the ten-key pad. When the RAM menu is displayed, press 0. Type the address that you wish to change. If you make a mistake, retype the address. Press the right arrow on the scroll key to move the cursor to the data.

  • Page 77: Memory Dump List

    2. Memory Dump List 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 03 at the ten-key pad. 3. When the RAM menu is displayed, press 1. 4. Type the first four digits of the start address (the last two digits is always fixed at 00). The cursor automat- ically moves to the end address.

  • Page 78: Hard Disk Dump

    • What other good files remain on the disk (make a File List) Then in a few days, Ricoh Technical Services should inform which cylinder and block number to enter. Print the report and send it to Ricoh Technical Services for analysis.

  • Page 79: G3 Ccu Handshake Logging Dump List

    1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 03 at the ten-key pad. 3. When the RAM menu is displayed, press 3 then press Start. The list is printed. Pass the list on to Ricoh technical services.

  • Page 80: Error Code Logging Dump List

    2. When the service mode menu is displayed, enter 03 at the ten-key pad. 3. When the RAM menu is displayed, press 5. 4. Press Start. The list is printed. Pass the list on to Ricoh technical services. 7. Multicopy Before using this function set bit 1 of SCU bit switch 18 to 1, and keep it at 1 after the end of programming.

  • Page 81: Counter Check

    8. Counter Check 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 03 at the ten-key pad. 3. When the RAM menu is displayed, press 7. 4. The Toner End, Toner Full, and Master counters are displayed. They can be changed by typing in the new value at the keypad.

  • Page 82: Service Station Number - Function

    2-3-6. Service Station Number - Function 04 Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 04 at the ten-key pad. 3. Type in the service station telephone number. If you make an error, press Clear (erases the last digit) or No (erases the complete number).

  • Page 83: Service Monitor Report Printing - Function 06

    2-3-8. Service Monitor Report Printing - Function 06 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 06 at the ten-key pad. 3. To print the report, press Start. 4. Press Function if all service mode operations have been finished. 2-3-9.

  • Page 84: Serial Number Programming - Function 08

    2-3-10. Serial Number Programming - Function 08 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 08 at the ten-key pad. 3. The serial number is displayed. If it is correct, go to step 5. 4.

  • Page 85: Fluorescent Lamp Lighting

    4. A list of options is displayed. Test pattern - Press 0 then Start Thin diagonal lines - Press 1 then Start Thick diagonal lines - Press 2 then Start All black - Press 3 then Start Horizontal and vertical line patterns - Press 4 then Start 5.

  • Page 86: Spu Reset

    3. SPU Reset Use this function to reset the machine after clearing an Auto Service Call condition. 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 09 at the ten-key pad. 3. The test menu is displayed. Press 1. 4.

  • Page 87: Ram Test

    5. RAM Test If the machine software crashes (for example, communication or printing fails even though the mechanisms are in good working order), a RAM may be defective. There are 5 RAM tests, as follows. After testing, the tested RAM is cleared and reset; if the RAM normally contains system parameters, these are loaded back in from the hard disk.

  • Page 88: Dcr Test

    6. DCR Test Do this test if received images are abnormal (for example, bottom half of the page is missing, skewed printout, missing data, blank page). The type of compression/reconstruction to be tested is selected by bits 6 and 7 of SCU bit switch 15.

  • Page 89: Spu Test Menu

    5. Press Function if all service mode operations have been finished. 8. SPU Test Menu Enter the service mode. See page 2-18. When the service mode menu is displayed, enter 09 at the ten-key pad. The test menu is displayed. Press 6. A list of options is displayed.

  • Page 90: Printer Status - Function 14

    Functions 11 and 12 are explained in section 1-7. 2-3-12. Printer Status - Function 14 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 14 at the ten-key pad. 3. The current errors are displayed. Press the up and down arrows on the scroll key to scroll through the messages.
  • Page 91 Message Explanation LD_POWER_FAIL The same as Auto Service Call condition “LD Power Lock Fail” HEATER_DOWN The same as Auto Service Call condition “Heater Control Fail” CHARGER_DOWN The same as Auto Service Call condition “Charger Current Leak” HMC_LDS_FAIL The same as Auto Service Call condition “LDS Handshake Fail” UIB_HDS_ERR The same as Auto Service Call condition “UIB Handshake Fail”...

  • Page 92: Transmission Status Report - Function 15

    2-3-13. Transmission Status Report - Function 15 1. Enter the service mode. See page 2-18. 2. When the service mode menu is displayed, enter 15 at the ten-key pad. 3. Press Start to print the report. A report of the status of all files on the hard disk is printed. The machine then returns to the service mode menu.
  • Page 93 Job Sub- Definition Job Sub- Definition code code Not used G4CCU system parameter list Department code list Transmission status report (service mode) Polling clear report Service monitor report File list Polling reserve report Hard disk dump list Journal Charge control report (Europe/Asia only) Test pattern Memory report Auto service call transmission...

  • Page 94: G4 Ccu Parameters - Function 16

    Enter the service mode. See page 2-18. When the service mode menu is displayed, enter 17 at the ten-key pad. Press Start to print the report. Pass the report on to Ricoh Technical Services. Press Function if all service mode operations have been finished.

  • Page 95: Dedicated Transmission Parameters

    2-3-17. Dedicated Transmission Parameters Each destination programmed as a Quick Dial Key or Speed Dial Code can be given dedicated parameters (such as tx level) that will override the machine’s settings when sending to that address. Consult a senior tech- nician before changing any of these settings.
  • Page 96 8. The settings of switch number 2 are now displayed. Change the settings of this and any of the other tx parameter switches as shown in steps 5, 6, and 7. 9. After all parameters for this address have been programmed, press Yes to return to the option display. 10.
  • Page 97 0: Enabled 1: Disabled Bit 1 - Not used Bit 2 - Short preamble 0: Enabled 1: Disabled Bit 3 - Ricoh Group 3 protocol 0: Enabled 1: Disabled Bit 4 - DIS detection 0: First 1: Second (first DIS is ignored)

  • Page 98: Back To Back Test

    2. Set bit 7 of G3CCU bit switch 40 to 1. 3. Place the other fax machine in back to back mode. For example, if it is another FAX7000L, set bit 7 of G3CCU bit switch 40 to 1. See the machine’s field service manual for details.

  • Page 99: Bit Switches

    2-4. 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. Such bits are for use only in other markets, such as Japan.
  • Page 100 U. K. Germany Italy France Universal Bit Sw. Blt switches 33 to 40: Factory settings are all 0. 2-48...

  • Page 101: Scu - Bit Switch Tables

    2. SCU - Bit Switch Tables SCU Bit Switch 01 FUNCTION DATA COMMENTS Not used Do not change the factory setting. Smoothing of 0: Enabled If this bit is 0, faxes received in standard or detail mode will be received images 1: Disabled smoothed to super-fine mode.
  • Page 102 SCU Bit Switch 02 FUNCTION DATA COMMENTS Contrast threshold level (Darken) The threshold value can be between 0 and 15. The most sig- 0 (0) to 1 (15) nificant bit is bit 3. For example, if bit 3 is 1 and the other bits are 0, the contrast threshold would be 8.
  • Page 103 SCU Bit Switch 03 FUNCTION DATA COMMENTS Contrast threshold level (Normal) The threshold value can be between 0 and 15. The most sig- 0 (0) to 1 (15) nificant bit is bit 3. For example, if bit 3 is 1 and the other bits are 0, the contrast threshold would be 8.
  • Page 104 SCU Bit Switch 05 FUNCTION DATA COMMENTS Default setting of 0: On 1: Off If auto reduce is on, the machine will reduce the data so that it the auto reduce op- will fit the paper in the remote terminal. If auto reduce is off, tion the data will not be reduced;...
  • Page 105 SCU Bit Switch 05 - Continued FUNCTION DATA COMMENTS Page separation 0: Printed 0: If a received page has to be printed on two sheets (see bit mark 1: Not printed 1), an “x” inside a small box is printed in the bottom right corner of the first sheet.
  • Page 106 SCU Bit Switch 06 FUNCTION DATA COMMENTS Resolution default setting These bits state the default resolution setting. The machine’s Bit 1 Bit 0 Setting Standard resolution returns to this setting when power is switched on Detail and when the machine returns to standby after transmission. Super Fine If (1, 1) is selected, a) the resolution will always reset to Stand- No default...
  • Page 107 SCU Bit Switch 06 - Continued FUNCTION DATA COMMENTS Line type selection default setting Bit 7 Bit 6 Setting These bits state the default line type setting. The line type Analog returns to this setting when power is switched on and when Not used the machine returns to standby after transmission.
  • Page 108 SCU Bit Switch 07 FUNCTION DATA COMMENTS Default transmis- 0: Memory This bit determines which setting the machine returns to when sion mode 1: Non-memory (imme- power is switched off/on, and when returning to standby at diate) the end of transmission. In memory mode, the message is al- ways stored to the hard disk before transmission.
  • Page 109 SCU Bit Switch 07 - Continued FUNCTION DATA COMMENTS Default setting for 0: 24 hours The message for polling transmission is stored to the hard the time a message 1: Erased after one disk. If this bit is 0, it can be polled many times within 24 remains in memory transmission hours, then the message is erased.
  • Page 110 1: Enabled 1: The machine will not transmit if the other end has a different Polling ID code. Note that if the other end is not a Ricoh machine, closed network may not be reliable. Closed network for 0: Disabled This is similar to bit 2 above, except that it is for reception.
  • Page 111 SCU Bit Switch 08 - Continued FUNCTION DATA COMMENTS With batch transmission, if the machine sends a message Batch transmission 0: Enabled 1: Disabled from the hard disk to a certain location, any other files waiting to be resent to the same address will be sent out on the same call.
  • Page 112 SCU Bit Switch 09 FUNCTION DATA COMMENTS Transmission result 0: Enabled This report is printed after each transmission. report 1: Disabled Error report 0: Enabled This report is printed if there was an error during the com- 1: Disabled munication. It contains an error code if bit 1 of bit switch 10 is Memory report 0: Enabled This report is printed after a message has been stored to the...
  • Page 113 SCU Bit Switch 10 FUNCTION DATA COMMENTS Automatic charge 0: Enabled If this bit is at 0, the charge control report is automatically control report out- 1: Disabled printed out once a month, on a fixed date that is decided by a RAM address setting.
  • Page 114 SCU Bit Switch 11 COMMENTS FUNCTION DATA If this bit is 1, a ’1’ is automatically inserted before the area Addition of ’1’ 0: No (Japan/Europe) before the area 1: Yes (USA) code of transfer broadcaster and end receiver numbers in a transfer request operation.
  • Page 115 SCU Bit Switch 12 FUNCTION DATA COMMENTS Date and time in 0: Included If this bit is 0, the date and time of transmission will be printed the TTl 1: Not included on pages received at the other end. If this bit is 0, the TTI will be printed on pages received at the TTl name in the TTl 0: Included 1: Not included other end.
  • Page 116 SCU Bit Switch 12 - Continued FUNCTION DATA COMMENTS TTI printing position 0: Superimposed on 0: The TTI is printed on top the data at the start of the page, the page data so some of the image will not be visible. For normal business 1: Printed before the letters, this is not usually a problem.
  • Page 117 SCU Bit Switch 13 FUNCTION DATA COMMENTS TTl letter size 0: Normal This determines the size of letters in the TTI printed at the 1: Half size other end. Address label in- 0: Enabled If this bit is 0, the address label the user programmed as an clusion in the TTl 1: Disabled option in Quick and Speed Dial programming will be included...
  • Page 118 SCU Bit Switch 14 FUNCTION DATA COMMENTS Transfer request 0: Enabled 1: Disabled Confidential trans- 0: Enabled mission 1: Disabled Action as a transfer 0: Enabled broadcaster 1: Disabled Transfer request 0: Enabled If this bit is set to 0, the machine can use the Quick Dials, using Speed Dial, 1: Disabled Speed Dials, and Groups stored in the transfer broadcasting...
  • Page 119 SCU Bit Switch 15 COMMENTS FUNCTION DATA Compression method In tx mode, these bits determine what compression methods Bit 1 Bit 0 Setting MMR, MR, MH, EFC are available. The methods are listed in order of priority; if the MR, MH, EFC other end cannot receive using the highest priority mode (for MR, MH example, MMR), the machine will step down (for example, to...
  • Page 120 SCU Bit Switch 15 - Continued FUNCTION DATA COMMENTS Sub scan OR 0: Enabled 0: If the data was stored using Super Fine resolution, and the processing of 1: Disabled other end can only print in Detail mode, the data is OR scanned data in processed.
  • Page 121 SCU Bit Switch 16 FUNCTION DATA COMMENTS Page retransmis- 0: Enabled 0: In memory or in non-memory transmission, if the other end sion 1: Disabled returns a negative receipt signal, the machine will try to resend the page from memory. Page retransmission is not done if ECM is enabled, as ECM is a more efficient retransmis- sion method.
  • Page 122 SCU Bit Switch 17 COMMENTS FUNCTION DATA Error count method 0: SCU bit switch 15, bit 4 1: SCU bit switch 17, bits 3 to 7 Not used Do not change the factory setting. Not used Do not change the factory setting. Error threshold Threshold If there are more error lines in the received page than the...
  • Page 123 PAGE: 1/1 FILE NO. 0165 Column 1 (Protocol Mode): G4 (Group 4), G3S (CClTT Group 3), G3N (Ricoh Group 3), or G2 (Group 2) Column 2 (Modem Rate): 96 (9600 bps), 72 (7200 bps), 48 (4800 bps), 24 (2400 bps) Column 3 (Resolution): 400 (400 x 400 dpi), 300 (300 x 300 dpi), 200 (200 x 200 dpi), 100 (200 x 100 dpi), SDL (16 x 15.4 I/mm), DTL (8 x 7.7 I/mm), or STD (8 x 3.85 I/mm)
  • Page 124 SCU Bit Switch 18 - Continued FUNCTION DATA COMMENTS Chequered mark If this bit is 0, the machine will print a chequered mark on the 0: Enabled top left corner of the first page of every received fax message. 1: Disabled This helps the user to separate the messages in the copy tray.
  • Page 125 LCD during communication. If the bit is 0, RTI is given priority over CSI when communicat- ing with a Ricoh machine. RTI is received in the NSF(C) frame. If the bit is 1, CSI will be given priority.
  • Page 126 SCU Bit Switch 21 - Continued FUNCTION DATA COMMENTS Dedicated tx 0: Disabled When this is 1, an extra option (for programming dedicated tx parameter program- 1: Enabled parameters - see page 2-43) appears in the display for ming programming Quick and Speed Dial (Functions 51, 52, 56, and 57).
  • Page 127 SCU Bit Switch 22 FUNCTION DATA COMMENTS Inch-mm conver- 0: Disabled The data is scanned in dot per inch format to meet Group 4 1: Enabled sion in tx mode standards. This bit determines whether to convert the data into dot per mm format for transmission to a Group 3 terminal. If this bit is 0, the data is not converted and the printed copy at the other end is slightly distorted (if the other end is a Group 3 based machine).
  • Page 128 SCU Bit Switch 23 FUNCTION DATA COMMENTS Transmission over 0: Enabled 0: The “Analog” selection is available by pressing the line analog networks 1: Disabled selection key to light the Analog indicator. 1: The “Analog” selection is not available even if the line selec- tion key is pressed.
  • Page 129 SCU Bit Switch 25 FUNCTION DATA COMMENTS Conditions for substitute reception to take place Bit 1 Bit 0 Condition Substitute reception never takes place if a Call Service condi- No conditions tion exists, regardless of the settings of these bits. RTI or CSI must be received Polling IDs must match (1, 1) - Substitute reception is disabled only if the printer was...
  • Page 130 SCU Bit Switch 26 FUNCTION DATA COMMENTS Excess length (x) when bit 1 of SCU bit switch 05 is 1 (reduction disabled) Refer to bits 1 and 4 of SCU bit switch 05 for a full explanation. Bit 3 Bit 2 Bit 1 Bit 0 x (mm) Excess length (x) when bit 1 of SCU bit switch 05 is 0 (reduction enabled) When reduction is enabled, the machine converts the length...
  • Page 131 SCU Bit Switch 27 FUNCTION DATA COMMENTS Standard resolution 0: Enabled If this bit is 1, Standard resolution cannot be selected. 1: Disabled Detail resolution If this bit is 1, Detail resolution cannot be selected. 0: Enabled 1: Disabled 0: Enabled If this bit is 1, Super Fine resolution cannot be selected.
  • Page 132 SCU Bit Switch 29 FUNCTION DATA COMMENTS Not used Do not change the factory setting. If this bit is 1, charge control functions, such as the charge Charge control 0: Enabled 1: Disabled control report will not operate. The charge control parameter table has been designed for use only in Italy and W.
  • Page 133 SCU Bit Switch 31 FUNCTION DATA COMMENTS Maintenance interval (Unit = ’000 copies) Bit 2 Bit 1 Bit 0 Interval When the maintenance interval has expired, the machine will send an Auto Service Call report to the service station. The report will contain a message informing the service center that maintenance is due.
  • Page 134 SCU Bit Switch 31 - Continued FUNCTION DATA COMMENTS Master Belt counter limit (Unit = ’000 copies) Bit 7 Bit 6 Limit These bits determine the lifetime of the master unit. The master unit will have to be replaced when the master belt rota- tion counter reaches the value determined by these bits.
  • Page 135 SCU Bit Switch 32 FUNCTION DATA COMMENTS Not used Do not change the factory setting. W. German version 0: Disabled Set this bit to 1 in machines installed in W. Germany. After 4 1: Enabled consecutive automatic dialling operations, the machine will have to wait for 5 minutes before auto dialling can take place again.
  • Page 136 SCU Bit Switch 32 - Continued FUNCTION DATA COMMENTS Norwegian version 0: Disabled Set this bit to 1 in machines installed in Norway. When dialling 1: Enabled an address, if busy tone, CED, Gl, or DIS are not detected and T1 times out, the address cannot be redialled. Swiss version 0: Disabled Set this bit to 1 in machines installed in Switzerland.

  • Page 137: G3 Ccu - Factory Settings

    3. G3 CCU - Factory Settings U. K. Germany Italy France Universal Bit Sw. Continued on the next page 2-85...
  • Page 138 Universal U. K. Germany Italy France Bit Sw. 2-86...

  • Page 139: G3 Ccu - Bit Switch Tables

    CClTT Group 3 to be disabled. Reset the bit to 0 after testing. Ricoh Group 3 0: Enabled Set this bit to 1 during communication tests that require Ricoh 1: Disabled Group 3 to be disabled. Reset the bit to 0 after testing.
  • Page 140 COMMENTS Not used Do not change the factory setting. Short preamble 0: Enabled This allows communication time between Ricoh machines to 1: Disabled be reduced. The pre-frame flag sequence is reduced from 1 s to 0.2 s. Not used Do not change the factory setting.
  • Page 141 G3 CCU Bit Switch 03 FUNCTION DATA COMMENTS Initial modem rate for transmission (bps) Bit 1 Bit 0 Rate These bits set the initial starting modem rate for transmission. 9600 The rate may fall back to a slower rate depending on the line 7200 condition and the other terminal.
  • Page 142 G3 CCU Bit Switch 04 FUNCTION DATA COMMENTS Monitor speaker off timing These bits determine how much of the communication can be Bit 1 Bit 0 Timing After GI/NSF/DIS (tx mode) heard at the monitor speaker. (1, 0) or (1, 1) may be useful or GC/NSS/DCS detected during tests.
  • Page 143 G3 CCU Bit Switch 04 - Continued FUNCTION DATA COMMENTS Monitor speaker volume (dB) Bit 7 Bit 6 Bit 5 Volume These bits are changed by user function 95. These bits do not affect the voice message playback volume. 2-91...
  • Page 144 G3 CCU Bit Switch 05 FUNCTION DATA COMMENTS Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting.
  • Page 145 G3 CCU Bit Switch 06 FUNCTION DATA COMMENTS Maximum number of attempts to resend a page after sending CTC Bit 1 Bit 0 Setting After sending a page, the machine waits for the response. If the other end informs (using the PPR signal) that there were errors, the defective part of the data will be resent.
  • Page 146 FUNCTION DATA COMMENTS Modem rate 0: Ricoh non-standard 0: Ricoh non-standard can be used to transmit to another fallback method 1: CClTT standard maker’s machine. The modem rate will fall back after CTC used with CTC sooner than the CClTT standard if the line is very bad, unless the modem rate is already 2400 or 4800 bps.
  • Page 147 5 below will be used. Training error tolerance Bit 5 Bit 4 Ricoh Kalle If the machine detects more errors during training than the number set by these bits, training fails and the machine will send FTT. The data will be resent at a lower rate.
  • Page 148 G3 CCU Bit Switch 09 FUNCTION DATA COMMENTS Fallback on receiv- 0: No 1: Yes If this bit is 1, the machine’s tx modem rate will fall back in ac- ing a negative sig- cordance with the settings of bits 6 and 7 below before send- nal (RTN/PIN) ing the next page if a negative code is received.
  • Page 149 G3 CCU Bit Switch 10 FUNCTION DATA COMMENTS Not used Do not change the factory setting. Manual dial mode, pulse dial - minimum inter- val between the start of each dialled digit Bit 2 Bit 1 Interval If a digit takes less than this value to dial (for example, if diall- ing 1), the machine will not dial the next digit until the interval 0.5s has elapsed, even if the user already pressed the next digit.
  • Page 150 G3 CCU Bit Switch 11 FUNCTION DATA COMMENTS Automatic voice 0: Enabled If this bit is 0 and a voice message is programmed, the message 1: Disabled machine will send the voice message if a telephone user calls the machine by mistake. The message can then warn the other end to hang up before it sends the modem tones.
  • Page 151 G3 CCU Bit Switch 12 FUNCTION DATA COMMENTS Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting.
  • Page 152 G3 CCU Bit Switch 15 COMMENTS DATA FUNCTION Country code Set these bits in accordance with the country of installation. Bit 4 3 2 1 0 Country 0 0 0 0 1 W. Germany These bits are automatically copied to G4 CCU bit switch 15 0 0 0 1 0 U.
  • Page 153 G3 CCU Bit Switch 16 is not used G3 CCU Bit Switch 17 COMMENTS FUNCTION DATA CNG signal transmission These bits determine the type of CNG signal that the machine Bit 1 Bit 0 Signal transmits. 1100 Hz 1300 Hz CNG transmission disabled 1300 Hz for 4 s CED signal transmission...
  • Page 154 G3 CCU Bit Switch 18 FUNCTION DATA COMMENTS Telephone line type Bit 1 Bit 0 Type These bits determine the type of dialling used by the machine. Pulse dial, 10 pps The bits are changed when the user changes the telephone Not used line type setting with function 81.
  • Page 155 G3 CCU Bit Switch 19 COMMENTS FUNCTION DATA Attenuation for transmitted data (dB) These bits determine how much the modem attenuates the Bit 3 Bit 2 Bit 1 Bit 0 Attenuation data signal. Do not change the factory settings. Not used 2-103...
  • Page 156 G3 CCU Bit Switch 20 FUNCTION DATA COMMENTS Cable equalizer for G3 transmission (dB) Adjust these bits if there is a lot of signal loss because of the Bit 1 Bit 0 dB length of wire between the modem and the telephone ex- change.
  • Page 157 G3 CCU Bit Switch 21 FUNCTION DATA COMMENTS Cable equalizer for G2 transmission (dB) Bit 1 Bit 0 dB Adjust these bits if there is a lot of signal loss because of the length of wire between the modem and the telephone ex- change.
  • Page 158 G3 CCU Bit Switch 21 - Continued FUNCTION DATA COMMENTS G2 delay equalizer links Bit 7 Bit 6 Links If there is a copy quality problem in G2 tx or rx mode, try ad- justing these bits. If the other terminal is in the same area, try setting the link number to 0 for that communication.
  • Page 159 G3 CCU Bit Switch 22 FUNCTION DATA COMMENTS Printout contrast threshold for received G2 fax messages (Hex) Bit 1 Bit 0 Hex value Use these bits to adjust the printout black/white threshold 20 (Medium dark) level for received G2 fax messages. 14 (Lightest) 18 (Medium light) 28 (Darkest)
  • Page 160 G3 CCU Bit Switch 37 FUNCTION COMMENTS DATA PSTN access number Access no. Hex value of bit switch 37 Program this bit switch if the machine is behind a PABX. The access number is the number that the user must dial to get an outside line.
  • Page 161 G3 CCU Bit Switch 38 COMMENTS FUNCTION DATA Dialling method in pulse dial mode Bit 1 Bit 0 Method P = Number of pulses sent out. N = Number dialled. Do not Normal (P = N) change the factory settings. Oslo (P = 10 - N) Sweden (N + 1) Not used...
  • Page 162 G3 CCU Bit Switch 39 FUNCTION DATA COMMENTS Line current detec- 0: Enabled Some countries require line current detection. To enable line tion 1: Disabled current detection, set this bit to 0 then program the RAM ad- dresses containing line current detection parameters. PSTN dial tone 0: Enabled Some countries require PSTN dial tone detection.
  • Page 163 G3 CCU Bit Switch 40 FUNCTION DATA COMMENTS Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting. Not used Do not change the factory setting.

  • Page 164: Ncu Parameters

    2-5. NCU Parameters Description Formula Remarks Acceptable ringing signal frequency: See Note 1. Range 1, upper limit, low byte Acceptable ringing signal frequency: See Note 1. Range 1, upper limit, high byte Acceptable ringing signal frequency: See Note 1. Range 1, lower limit, low byte Acceptable ringing signal frequency: See Note 1.
  • Page 165 Description Formula Remarks Minimum required ring length, See Note 3. See Note 2. second limit 12 Ringing detection, reset time, lower See Note 4. byte 13 Ringing detection, reset time, upper See Note 4. byte 14 Time between closing the Ds relay N = Time/2 [ms] See Note 5.
  • Page 166 Notes Each frequency limit value requires two parameters. The settings of the two parameters (N) are calculated from the required frequency limit value (F) as follows. N = FFFF[H] - 500,000/F Example: Parameters 1 and 2. The required value (F) is 24 Hz. So: N = FFFF[H] - 500,000/24 = FFFF[H] - 20,833 20,833 in hexadecimal code is 5161[H], so N = FFFF[H] - 5161[H], = AE9E.

  • Page 167: Useful Ram Addresses

    2-6. Useful RAM Addresses Redialling Program the following addresses in hexadecimal code. Non-memory transmission Number of redials - RAM address 304050; maximum number of redials = 255 Redial interval - RAM address 304051 (unit = 1 minute); maximum interval = 255 minutes Memory transmission Number of redials - RAM address 304052;...

  • Page 168: Charge Control Report Printout Date

    Charge Control Report Printout Date If automatic charge control printout is enabled by bit switch (SCU bit switch 10 bit 0 at 0), the report is printed once a month on a certain day. The date of the next scheduled printout is stored in RAM as follows. Subsequent reports are printed monthly, on the same day of the month as specified in the RAM.

  • Page 170: Section 3. Removal And Replacement

    SECTION 3. REMOVAL AND REPLACEMENT 3-1. Covers ....3-2 3-5. Printer - Paper Feed ..3-27 3-1-1. Lower Front Right, Lower Left, and 3-5-1.
  • Page 171 3-9. Printer - Quenching ..3-42 3-9-1. Quenching Lamp ..3-42 3-10. PUBs ....3-43 3-10-1.
  • Page 172 IMPORTANT NOTICES Switch off the machine and disconnect the power cord before doing any of the removal procedures, especially if those procedures involve components in or near the laser diode unit and laser beam path. Laser beams can cause permanent eye damage. If the MBU is replaced, or the battery switch is accidentally switched off, reprogram the hard disk bad sectors.

  • Page 173: Covers

    3-1. Covers 3-1-1. Lower Front Right, Lower Left, and Upper Front Covers Remove the upper and lower cassettes. Open the lower front left cover [C]. Remove the lower front right cover [A] (3 screws, 2 rubber plugs). Unhook the cover carefully, taking care not to break hook [B].

  • Page 174: Operation Panel

    3-1-2. Operation Panel 1. Remove the upper front cover (see sec- tion 3-1-1). 2. Remove plate [A] (6 screws). 3. Remove the PCB cover [B] (16 screws, unplug the speaker and SPU fan). 4. Remove the operation panel [C] (4 screws, 2 connectors).

  • Page 175: Upper Rear, Lower Rear, And

    3-1-3. Upper Rear, Lower Rear, and BSRU Covers Access the machine from the rear. Remove the telephone. Remove the lower rear cover [A] (4 screws). Open the right cover and the upper unit. Remove the BSRU cover [B] (3 screws) Remove the upper rear cover [C] (4 screws, 2 connectors, 2 rubber plugs).

  • Page 176: Rear Inner Cover, Right Inner Cover

    3-1-5. Rear Inner Cover, Right Inner Cover, and Document Table 1. Open the upper unit. 2. Remove the rear inner cover [A] (5 screws). 3. Remove the right inner cover [B] (2 screws). 4. Remove the document table [C] (unhook 4 hooks, remove 2 screws).

  • Page 177: Adf And Scanner

    3-2. ADF and Scanner 3-2-1. Document Feed and Pick-up Rollers Remove the document table (see p. 3-5). Open the scanner cover. Remove the timing belt cover [A] (1 screw). Slide the cover towards the cas- sette end of the machine and lift it off. Open the upper unit.

  • Page 178: Document Separation Roller

    Remove the document guide plate [E] (8 screws). Remove E-ring [F], slide the bushing across, remove spring [G], then remove the feed roller unit [H]. Remove clips [I] and remove the pick-up [J] and feed [K] rollers. 3-2-2. Document Separation Roller Press the manual feed button to open the manual feed cover [A].

  • Page 179: Separation Roller Adjustment

    Separation Roller Adjustment The separation torque and pressure can be adjusted to correct double feed or non-feed problems, or to cus- tomize the machine to meet user requirements if non-standard paper types are frequently used as documents. Adjustment is done by adding or removing spacers [A] for torque, or [B] for pressure.

  • Page 180: Fluorescent Lamp

    3-2-3. Fluorescent Lamp Remove the document table (see section 3-1-5). Open the scanner cover. Open the upper unit. Remove cover [A] (2 screws). Slide out the lamps [B] (1 screw, 1 con- nector). 3-24. Fluorescent Lamp Driver Remove the SMDR (see page 3-25). Remove the fluorescent lamp driver [A] (3 screws, 2 connectors).

  • Page 181: Sbu

    3-2-5. SBU 1. Remove the top cover (see section 3-1-4). 2. Remove the adjustment knobs [A] (1 screw each). 3. Remove the SBU [B] (2 screws, 1 connec- tor). After installing a new SBU, do the scanner ad- justments on the following pages, and make a test copy of a chart before leaving the machine.
  • Page 182 - Tools Required - • Scan line test chart - P/N H0089503 • 200 dpi test pattern - P/N A0129110 • Allen wrench - Preparation - 1. Remove the top cover (see section 3-1-4). 2. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal).
  • Page 183 - Procedures - Step Item Procedure Alignment 1. Access the SBU as explained in “Preparation” above. 2. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal). 3. Connect the oscilloscope probe to the XVIDEO test point and the ground to the GND test point.
  • Page 184 Procedure Step Item In the oscilloscope waveform, White Level A should be about 1.5 V. If it is not, do the following. 1. Access the SBU as explained in “Preparation” above. 2. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal).
  • Page 185 Item Procedure Step Check If the waveform has irregular patches, the lens, mirror, exposure glass, white pres- sure plate, or CCD may be dirty. If the waveform level is lower at the ends than in the middle, the fluorescent lamps may be wearing out.
  • Page 186 Step Item Procedure Reduction 1. Access the SBU as explained in Rate “Preparation” above. 2. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal). 3. Connect the oscilloscope probe to XVIDEO and the ground to GND. 4. Light the fluorescent lamps (see page 2-33).
  • Page 187 Step Item Procedure Scan Line 1. Access the SBU as explained in “Preparation” above. 2. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal). 3. Light the fluorescent lamps (see page 2-33). 4. Connect the oscilloscope probe to XVIDEO and the ground to GND.
  • Page 188 Item Step Procedure Scan Start 1. Access the SBU as explained in Position “Preparation” above. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal). tight the fluorescent lamps. Place the scan line test chart [A] on the exposure glass as shown. Connect the oscilloscope to the test lead as follows: Channel 1 to XVIDEO, channel 2 to SH, ground to...
  • Page 189 Step Item Procedure White Level 1. Access the SBU as explained in “Preparation” above. Set the oscilloscope scale to 0.2 V/unit (vertical) and 0.5 ms/unit (horizontal). Light the fluorescent lamps (see page 2-33). Remove all charts from the scanner and close the scanner cover. Keep the lamps on for more than 2 minutes.

  • Page 190: Tx Motor Timing Belt Adjustment

    3-2-6. Tx Motor Timing Belt Adjustment Remove cover [A] (1 screw). Remove cover [B]. Loosen both screws [C] on the belt ten- sioner [D]. Push the tensioner until the tension of both belts is acceptable. Tighten both screws [C]. Reassemble the machine. 3-19...

  • Page 191: Printer - Charge

    3-3. Printer - Charge 3-3-1. Charge Corona Wire 1. Remove the operation panel (see section 3-1-2). 2. Slide out the master unit. Caution: • Do not expose the master unit to light. • Keep it in a shaded place and cover it with paper.
  • Page 192 7. Remove the charge corona unit [C] (3 screws). 8. When you put back the gas spring tightener ring, the clearance [A] must be 0.2 +/- 0.1 mm (see section 3-11). 9. Prize off the front endblock cover [D]. 10. Carefully slide off the rear endblock cover [E] .

  • Page 193: Printer - Exposure

    3-4. Printer - Exposure WARNING Switch off the main power before attempting any of the procedures in this section. Laser beams can seriously damage the eyes. 3-4-1. Second Cylindrical Lens Open the upper unit. Remove plate [B] (1 screw). Slide out the lens [A]. Cautions: •...

  • Page 194: Pentagonal Mirror And Motor

    3-4-2. Pentagonal Mirror and Motor 1. Open the upper unit. 2. Slide out the master unit. Caution: • Do not expose the master unit to light. • Keep it in a shaded place and cover it with paper. • Do not touch the master belt sur- face.
  • Page 195 Remove plate [D] (4 screws). Disconnect the motor from the drive board [E]. Remove the mirror and motor [F] (2 screws). Note: • Do not touch the faces of the mirror. • If you need to clean the mirror, use an air brush or a soft dry cloth.

  • Page 196: Pentagonal Mirror Motor Driver (Smdr)

    3-4-3. Pentagonal Mirror Motor Driver (SMDR) 1. Do steps 1 to 5 of section 3-4-2. 2. Remove the SMDR board [F] (3 screws). 3-4-4. LSD 1. Remove the front inner cover (see section 3-1-6) 2. Remove the LSD [A] (1 connector, 2 screws).

  • Page 197: Laser Diode Unit

    3-4-5. Laser Diode Unit WARNING: SWITCH OFF THE MAIN POWER. 1. Remove the document tray. 2. Remove the upper rear cover (see section 3-1-3). 3. Slide out the master unit. Cautions: • Do not expose the master unit to light. •...

  • Page 198: Printer - Paper Feed

    3-5. Printer - Paper Feed 3-5-1. Upper Paper Feed and Pick-up Rollers 1. Take out the development unit (see sec- tion 3-6-1). 2. Remove the rollers (1 clip each). Do not touch the surface of the new rollers or paper feed errors will develop sooner than normal.

  • Page 199: Upper Paper Separation Roller And Spring Clutch

    3-5-2. Upper Paper Separation Roller and Spring Clutch 1. Take out the cassette then the develop- ment unit (see section 3-6-1). 2. Remove the feed and pick-up rollers (1 clip each). 3. Remove the separation roller ass’y [A] (2 screws). 4.

  • Page 200: Lower Paper Feed And Pick-Up Rollers

    3-5-3. Lower Paper Feed and Pick-up Rollers 1. Take out the cassettes. 2. Remove the paper feed and pick-up rollers (1 clip each). 3-5-4. Lower Paper Separation Roller 1. Take out the cassettes. 2. Remove the separation roller cover plate [A] (2 screws).

  • Page 201: Master Belt Drive Motor Timing Belt

    3-5-5. Master Belt Drive Motor Timing Belt Adjustment Open the upper unit. Remove the rear inner cover (see section 3-1-5). Move the belt tensioner [A] until its edge is flush with the edge of the master belt motor bracket, then tighten the screw. 3-5-6.

  • Page 202: Printing - Development

    3-6. Printing - Development 3-6-1. Development Unit Remove the upper cassette and open the right cover. Remove plate [A] (2 screws). Take out the development unit [B] and lay it on a flat surface covered with newspaper. 3-6-2. Toner Metering Blade 1.

  • Page 203: Development Roller

    3-6-3. Development Roller Take out the development unit and toner metering blade (see the previous page). Remove the rear development unit cover [A] (1 screw). Remove the bias brush cover [B] (3 pins). Take out the bias brush [C]. Remove the idle gear [D] (1 E-ring) then the development roller gear [E] (1 E-ring).

  • Page 204: Printer - Transfer

    3-7. Printer - Transfer 3-7-1. Transfer Corona Wire 1. Open the upper unit and take out the master unit. Caution: • Do not expose the master unit to light. • Keep it in a shaded place and cover it with paper.
  • Page 205 7. Remove the transfer corona unit [E]. 8. Remove the nylon wire [F] (1 screw at each end). 9. Prize off the front endblock cover [G] then carefully slide off the rear endblock cover [H]. 10. Unhook the corona wire [I] from the ten- sion spring in the rear endblock and from the screw in the front endblock (do not remove the screw).

  • Page 206: Transfer Entrance Guide Plate

    3-7-2. Transfer Entrance Guide Plate Adjustment Remove the front and rear covers. Make sure that there is a master unit in the machine. Close the upper unit. Tighten the screw [A] at each end of the transfer entrance guide plate (access the screws through the front and rear sides of the machine).

  • Page 207: Printer - Fusing

    3-8. Printer - Fusing 3-8-1. Fusing Unit 1. Remove the upper front cover (see sec- tion 3-1-1) 2. Remove cover [A] (1 screw). 3. Remove cover [B] (1 screw). 4. Open the copy feed-out cover [C]. Remove bracket [D] (3 screws). Unhook spring [E] from the upper unit in- terlock switch [F].
  • Page 208 9. Remove two screws (see section 3-4-2; remove screws [C]) and lift off the spring plates underneath, one at the front and one at the rear of the fan assembly. Note: Do not remove or disassemble the fan. 10. Remove the transport guide plate (see section 3-10-5).

  • Page 209: Thermostat

    3-8-2. Thermostat 1. Remove the fusing unit (see section 3-8- 2. Unhook 4 clamps [A]. 3. Remove screw [B]. 4. Remove the thrmostat [C] (2 screws). 3-8-3. Fusing Lamp/Thermistor Assembly 1. Remove the thermostat (see section 3-8- 2. Unhook the other clamps. 3.

  • Page 210: Hot Roller

    3-8-4. Hot Roller Remove the fusing lamp/thermistor ass’y (see section 3-8-3). Remove drive gear [A] and the bushing at the rear (1 C-ring). Remove bushing [B] at the front (1 C- ring). Slide out the hot roller [C] as shown. Reinstalling: •...

  • Page 211: Pressure Roller

    3-8-5. Pressure Roller 1. Remove the hot roller carefully (see sec- tion 3-8-4). Put the roller in a safe place. 2. Lift out the pressure roller [A], and take off the E-ring, bushing and washer at each end. Reinstalling: • Do not take the paper off the new roller until the roller has been installed.
  • Page 212 Close the feed-out ass’y and remove the antistatic brush and holder [D] (2 screws). Open the feed-out ass’y. Move guide plate [E] out of the way. Unhook the springs from the hot roller strippers. Take out the hot roller strippers [F]; push down on the retaining bar [G] while taking them out.

  • Page 213: Printer - Quenching

    3-9. Printer - Quenching 3-9-1. Quenching Lamp 1. Remove the operation panel (see section 3-1-2). 2. Remove the front inner cover (see page 3- 3. Remove the quenching lamp (1 screw, 1 connector). 3-42...

  • Page 214: Spu, Vpu, G3Ccu, And Modem

    3-10. PCBs 3-10-1. SPU, VPU, G3CCU, and Modem Remove the upper front cover (see sec- tion 3-1-1). Remove plate [A] (6 screws). Remove plate [B] (15 screws, 2 connec- tors). Remove the G4 harness terminating block and bracket [C] (2 screws). Remove the modem [D] (2 clips) and G3CCU [E] (4 stand-off screws, 2 connec- tors).

  • Page 215: Scu And Mbu

    3-10-2. SCU and MBU Notes for MBU replacement • Print the service monitor report (service function 06). • Make sure that the battery switch of the new MBU is on. 1. Remove the modem and G3CCU (see p. 3-43). 2. Remove the SCU [H] and MBU [I] as- sembly (3 screws).

  • Page 216: Uib

    3-10-3. UIB Remove the document table (see section 3-1-5). Remove two connectors [A]. Remove the UIB cover [B] (4 screws). Remove the UIB [C] (4 screws, 8 connec- tors). 3-10-4. DSB Remove the document table (see section 3-1-5). Remove the document guide plate ([E] in section 3-2-1, “Document Feed and Pick- up Rollers”).

  • Page 217: Dru

    3-10-5. DRU 1. Open the upper unit. 2. Remove the transport guide plate [A] (5 screws, 1 earth wire). 3. Remove the DRU [B] (4 screws, 7 connec- tors). 3-10-6. Power Pack See the next page for a diagram. 1. Remove the upper front cover (see sec- tion 3-1-1).
  • Page 218 5. Take the charge corona power terminal [A] out of the terminal block (1 screw). 6. Remove the terminal block [B] (2 screws). 7. Carefully disconnect the transfer corona power terminal [C]; use long-nosed pliers. 8. Remove the bias terminal [D] (1 screw). 9.

  • Page 219: Psu

    3-10-7. PSU Remove the transport guide plate (see section 3-10-5). Remove the 5 connectors and the earth wire (see the top figure on the right). Remove the lower left cover (see section 3-1-1). Remove the PSU [A] (5 screws, three of which are under cables on top of the PSU).
  • Page 220 Remove the ozone filter (note that the end with the green mark goes at the rear of the machine). Remove the DRU and its bracket [A] (3 screws). Remove 2 screws [B] under the cables on top of the hard disk. Remove the lower left cover (see section 3-1-1).

  • Page 221: G3Ncu

    3-10-9. G3NCU Remove the rear cover (see section 3-1-3). Remove the top cover (see section 3-1-4). Remove the NCU/shield cover ass’y (3 connectors, 5 screws, one of which is grounded). Remove the G3NCU [A] (4 screws). 3-10-10. LIB 1. Open the lower front cover. 2.

  • Page 222: Bsru

    3-10-11. BSRU Access the machine from the rear. Open the upper unit. Remove the bar code reader [A] if in- stalled. Remove the BSRU cover [B] (3 screws). Remove the BSRU [C] (4 screws, 1 con- nector). 3-11. Others 3-11-1. Gas Spring Adjustment If the gas spring is removed at any time, do the following adjustment when replacing the spring.
  • Page 223 S E C T I O N...
  • Page 224 SECTION 4. SERVICE TABLES 4-1. PM Table ... . . 4-1 4-2. General Service Tables ..4-3 4-2-1. Test Points ... 4-3 4-2-2.

  • Page 225: Pm Table

    4-1. PM Table 1. Scanner Part Clean Lubricate Replace Remarks Separation Roller Pick-up Roller Feed Roller R1 Roller R2 Roller Exposure Glass Pressure Plate 2. Printer and Upper Paper Feed Mechanism Part Lubricate Replace Remarks Clean Separation Roller Pick-up Roller Feed Roller Separation Torque Limiter G40H...
  • Page 226 2. Printer and Upper Paper Feed Mechanism (Continued) Part Lubricate Replace Remarks Clean Master Unit Toner Collection Tank Development Unit Ozone Filter Thermistor Thermostat Hot Roller Strippers Cleaning Pad Hot Roller Pressure Roller (Fusing Unit) Printer Fan Belt 3. Lower Paper Feed Mechanism Part Lubricate Replace...

  • Page 227: General Service Tables

    4-2. General Service Tables 4-2-1. Test Points 4. UIB 1. SCU TP1 - Laser main scan start sync signal, TP1 - Drive clock (8 MHz): system, main cpu from LSD TP2 - Drive clock (3.072 MHz): buzzer timer, bar TP2 - COM1 (Ground) code reader TP3 - Laser power feedback signal (XLPDET, TP3 - + 5V...
  • Page 228 13. G3NCU 10. LDDR TP1 - HYBTXL COM (Ground) TP1 - + 12V supply TP2 - Data for transmission (HYBTXL, from TP 2, 3, 4 - Factory use only G3CCU) TP5 - XLPDET (laser power feedback signal) TP3 - HYBRXL COM (Ground) 11.

  • Page 229: Variable Resistors And Capacitors

    4-2-4. LED Indicators 4-2-2. Variable Resistors and Capacitors 1. SPU LED 1 - Factory use only 1. SCU LED 2 - On = VPU FIFO reset VR1 - Buzzer volume control LED 3 - Copy feed-out sensor; Off = Paper 2.
  • Page 230 3. G3CCU LED 1 - Not used LED 2 - On: Line current polarity, output 1 activated LED 3 - On: Line current polarity, output 2 activated LED 4 - On: Interrupt processing in progress (modem or SCU handshake) LEDs 5 to 8 - Most recent response sent to main cpu (on the SCU) LED 8 7 6 5 Response 0 0 0 0 Status inquiry 0 0 0 1 Ringing signal detected, request start rx mode...

  • Page 231: Jumpers

    4-2-5. Jumpers Do not touch any of the jumpers inside this machine, except the following jumpers on the G3NCU. Configure these jumpers in accordance with the location of installation. Jumper W. Germany U.K. Italy Austria Belgium Denmark Finland Ireland Norway Continued on the next page...
  • Page 232 Jumper Sweden Switzerland Portugal Netherlands Hong Kong S. Africa Key: O = Shorted, X = Open For an explanation of No. 1, No. 2, and No. 3 in the columns for jumpers 7 and 8, see below. No. 1 = No.

  • Page 233: Special Tools And Lubricants

    4-2-6. Special Tools and Lubricants H0089503 Scan line test chart: A0129110 200 dpi test chart H0069600 NF-46 grease: H0081223 (torque) Separation roller spacers: H0081224 (pressure)
  • Page 234 S E C T I O N...

  • Page 235: Section 5. Troubleshooting

    SECTION 5. TROUBLESHOOTING 5-1. Quality Checks ... 5-1 5-6. Hard Disk Troubleshooting Routines . . 5-64 1. Copy Quality ... . 5-1 1.

  • Page 236: Quality Checks

    5-1. Quality Checks During troubleshooting, the quality checks in this section may help find the problem. These checks should also be done when installing a new machine, in order to discover any defects that may be present. 1. Copy Quality The test chart shown on this page is used for the copy quality checks explained on the following pages.

  • Page 237: Copy Density

    1. Copy Density Density must be equal in the left, right, and center. If it is not, adjust the alignment (see page 3-12). 2. Skew Copy a test chart using standard resolution. The difference between A and B (see the diagram on page 5-1) must be as follows. A4 [8.5”...

  • Page 238: Operation Panel Display

    2. Operation Panel Display See page 2-34. 3. Mechanism Test Check the operation of the document feed and printing mechanism. See section 5-3 (Machine Operation) if there are any problems. 4. Communication Tests 1. Call a remote unit and send 2 test charts, one in standard, and one in detail resolution. If the remote unit can accept 8 x 15.4 (Fine) resolution, also send one in Fine resolution.

  • Page 239: Copy Quality Troubleshooting

    5-2. Copy Quality Troubleshooting If there is a copy quality problem, try the DCR test (service function 09, mode 5; see page 2-36). If the prob- lem cannot be solved easily, try using the following troubleshooting flow chart, while referring to the point-to- point diagram and signal tables.
  • Page 240 Symptom Action Blank or faint copies (continued) Change the varistor. The laser beam may not be responding to the data signal, and may be continuously exposing the master. Check that the following connections are not loose: SPU CN4 - UIB CN6, UIB CN8 - LDDR. Does the data signal at the LDDR (CN1-6) switch on/off normally? Replace the LDDR, UIB, SCU, or SPU.
  • Page 241 Symptom Action Blank or faint copies 2. If there is nothing wrong with the printer, check the scanner. Check that the connections from the SBU - VPU and from VPU - SPU are not loose. (continued) Is there a video signal from the SBU, and is the white level normal? Adjust the white level.
  • Page 242 Symptom Action Black copy 1. Make a printer test (service function 09, mode 0). Is the printout normal? Is the master unit properly grounded? Check the grounding terminal near the rear of the machine by the quenching lamp, and check the grounding plate on the master unit.
  • Page 243 Symptom Action Black copy (con- 2. There may be a scanner problem. Clean the scanner optics, pressure plate, and tinued) exposure glass. Does the fluorescent lamp light properly? Check that the following connections are not loose: SPU CN4 - UIB CN6, UIB CN3 - FI. lamp driver, FI. lamp driver - FI. lamp. Does the lamp driver receive the + 24V power and trigger signals from the UIB? Replace the UIB, SPU, or SCU.
  • Page 244 Symptom Action Low image density 1. Make a printer test (service function 09, mode 0; see page 2-32). Is the test pat- tern normal? Try the following • Replace the master unit. • Check the corona wires. Clean with cotton swabs or replace. •...
  • Page 245 Action Symptom Low image density Check that the following connectors are not loose: SPU CN5 - DRU CN3, (continued) DRU CN1. Does the development clutch operate? Replace either the development clutch, the DRU, the SPU, or the SCU. Does the power pack send trigger signals to the transfer and charge corona wires? (Charge corona wire operation can be checked with service function 09, mode 6.) Change the SCU or SPU.
  • Page 246 Action Symptom Faint copy at leading If the paper is curled, correct the curl before installing the cassette. If the paper is damp, change the paper in the cassette. or trailing edge Instruct the operator how to store paper when it is not to be used for a long time. Thick or thin paper sometimes makes faint copies.
  • Page 247 Symptom Action Dirty background on Check that SPU CN17 is not loose. Does the bias terminal entire copy image receive -225 +/- 10 V? (continued) Does the power pack receive the trigger signal (SPU CN17-9 to low) and the power signal (SPU CN17-5)? Replace the SPU or SCU.
  • Page 248 Action Symptom Dirty background on Does the power pack send trigger signals to the transfer entire copy image and charge corona wires? (Charge corona wire operation can be (continued) checked with service function 09, mode 6.) Change the SCU or SPU. Is there any power at the corona units? Change the power pack.
  • Page 249 Symptom Action Dirty background The quenching lamp may be defective. after the trailing edge Check that the following connections are not loose: SPU CN4 - UIB CN6, of solid black areas UIB CN1 and 7 - DSB CN4 and 5, DSB CN2 - Quenching lamp. Does the quenching lamp operate correctly? Does the DSB output the drive and power signals on CN2? Does the UIB send the drive and power signal to the DSB?
  • Page 250 Symptom Action Uneven Density Make a printer test (service function 09, mode 0; see page 2-32). Is the Type 1 - Density printout normal? changes gradually across the copy • Check that the charge corona wire is clean and that it is installed correctly in the V-slots of the endblocks.
  • Page 251 Symptom Action Uneven Density Is there a clear contrast between the bands? Type 3 - Horizontal bands Clean the development roller bearings. • Change the fluorescent lamps if they is flickering. • Clean the transfer corona unit. Vertical White Lines Make a printer test (service function 09, mode 0;...
  • Page 252 Action Symptom Vertical White Lines Is the master belt scratched? or Bands Type 1 - • Clean the grid plate. Straight sharp lines • Clean the toner metering blade - toner may be (continued) piling up there. • Add toner if the supply is low. •...
  • Page 253 Symptom Action Vertical Black Lines • Replace the master if the cleaning blade is damaged. or Bands Type 1 - • Pentagonal mirror motor problem - replace the motor. If the problem Wavy lines still occurs, replace the SCU, SPU, or UIB. Vertical Black Lines If the master belt is scratched, replace the master unit and the part that is doing or Bands Type 2 -...
  • Page 254 Symptom Action Vertical Black Lines Make a printer test (service function 09, mode 0; see page 2-32). Is the or Bands Type 4 - printout normal? Straight lines or bands at constant Start a copy cycle and stop it just before the copy reaches the positions on the copy fusing unit.
  • Page 255 Symptom Action Vertical Black Lines Clean the master belt with a soft dry cloth carefully, and clean the interior of the or Bands Type 5 machine. Clean the charge corona wire. Dirty Clean the quenching lamp. margins Change the master unit. Change the fluorescent lamps.
  • Page 256 Action Symptom • Clean inside the machine, especially the fusing entrance and transfer Black spots at the leading edge entrance guide plates. • Check that the transfer corona wire is installed properly. • Clean the transfer corona wire. • Replace the power pack. Horizontal white Does the copy have a crease mark where the white band appears? lines or bands...
  • Page 257 Symptom Action • If “Call Service” is lit, replace the LDDR. Horizontal black • Check that the toner metering blade is screwed into place properly stripes • Check that the master unit is installed correctly and that the master unit is grounded properly. •...
  • Page 258 Symptom Action Blank areas If paper is wrinkled, refer to “Wrinkled Copy” (page 5-28). Otherwise, change the power pack. Check that the corona wires are clean and properly installed. If that does not solve the problem, change the power pack. Leading edge miss- •...
  • Page 259 Symptom Action Fuzzy copy Make a printer test (service function 09, mode 0; see page 2-32). Is the printout normal? Are the charge corona fan (at the rear of the machine) and the front and rear transfer fans operating? Do the fans receive + 24V from the DRU? Replace the DRU, SPU, PSU, or SCU.
  • Page 260 Symptom Action Hat image Does the quenching lamp turn on? Does the lamp receive power and the trigger signal from the DSB? Does the DSB receive + 24VD and the quenching lamp trigger signal from the UIB? Replace the UIB, SPU, or SCU. Replace the DSB.
  • Page 261 Symptom Action Image enlarged in If the problem only occurs in copy mode, it is a scanner problem. If the the sub scan direc- problem only occurs while receiving, it is a printer problem. tion The scanner or printer drive mechanisms (motors, gears, belts, and so on) may be obstructed or defective.
  • Page 262 Effects of line problems on copy quality 1. Missing lines; shrinkage in the sub scan direction - Bad copy sample - - Original - 2. Cut off - Bad copy sample - Some lines may be missing just before the cut off. 5-27...

  • Page 263: Mechanical Problems

    5-3. Mechanical Problems Symptom Action Wrinkled copy • Check whether the problem can be solved by using another stack of paper. • Check paper transport through the printer and replace the defective component. • Replace the fusing unit pressure springs. •...
  • Page 264 Action Symptom Skew (continued) If the problem is in the printer, then: Clean the paper feed, pick-up, and separation rollers (soft cloth and water). • Replace if necessary. • Check that the registration clutch operates correctly. Document Jam • Clean the R1 and R2 rollers (soft cloth and alcohol). •...
  • Page 265 Symptom Action Document non-feed • Does the tx motor turn on? (Motor operation can be checked with service function (continued) 09, mode 6.) Does the UIB output the tx motor drive signals? Does the SPU receive + 24VD from the PSU when Copy is pressed? Does 1POWON go high? Replace the SPU or SCU.
  • Page 266 Symptom Action Does the SPU receive + 24VD from the PSU when Copy is pressed? Document non-feed (continued) Does 1POWON go high? Replace the SPU or SCU. Replace the PSU, or the upper unit interlock switch, or the right cover interlock switch. Trace the + 24VD signal from the SPU to the ADF clutch.
  • Page 267 Symptom Action Copy Jam • Is the correct type of paper being used? • Is the paper correctly loaded? 1) Paper Feed • Clean the paper feed, pick-up, and separation rollers. Remove any debris from the Entrance - Error feed-in area. Code 907 •...
  • Page 268 Symptom Action Copy Jam (con- • Clean the registration rollers (metal roller - soft cloth and alcohol, rubber roller tinued) - soft cloth and water) • Check the registration sensor and circuit (see Copy Jam Type 1). 2) Registration Area Error Code 908 •...
  • Page 269 Symptom Action Copy Jam at the • Clean the lower paper feed, pick-up; and separation rollers. lower cassette feed- • Remove any debris from the feed-in area in area Copy non-feed - • Check that non-feed is not due to another problem (such as “CaIl Service” being lit, upper cassette power cord not plugged in).
  • Page 270 Symptom Action Copy non-feed - Does the SPU output the drive (CN5-7) and power signals to the DRU? upper cassette (con- tinued) Replace the SPU or SCU. Does the DRU output the drive and power signals to the motor driver? Replace the DRU.
  • Page 271 Symptom Action Copy non-feed - Does the SPU receive signals from the paper height sensor at CN14-2? upper cassette (con- tinued) Does the SPU output 5V at CN14-5? Replace the SPU or SCU. Replace the sensor. Does the SPU receive signals from the paper size sensor on CN6? Replace the sensor.
  • Page 272 Symptom Action Copy non-feed - • Check that non-feed is not due to another problem (such as “Call Service” being lit, lower cassette power cord not plugged in). • Clean or replace the lower paper feed and pick-up rollers. • Check the feed mechanism.
  • Page 273 Symptom Action Copy non-feed - Does 1POWON go high after Copy has been pressed? lower cassette (con- tinued) Replace the SPU or SCU. Does the SPU receive + 24VD from the PSU after Copy has been pressed? Replace the PSU, upper unit interlock switch, or right cover interlock switch.
  • Page 274 Action Symptom • Check that paper is at the paper feed position. If not, check the lift mechanism. then Copy non-feed - lower cassette (con- check the circuit as follows. tinued) Does the lift motor work? (This motor cannot be checked with service function 09, mode 6.) Does the LIB send the power (CN3-10) and drive (CN3-11) signal to the motor?
  • Page 275 Symptom Action Copy double feed Clean and lubricate, or replace the separation roller (upper or lower). Abnormal noise from Dirty paper feed, pick-up, or separation clutch. the printer Dog-eared copies Defective hot roller stripper. Excessive copy paper curl. Ozone odour Are the fans working? Replace either: •...

  • Page 276: Service Call Conditions

    5-4. Service Call Conditions If the Call Service indicator is lit, one of the following conditions has occurred. In the following list, the mes- sages printed on the Auto Service Call printout are given followed by an explanation in brackets if necessary. Master Unit Replacement Required Preventive Maintenance Required Polygon Motor Fail (pentagonal mirror motor lock failure, or laser main scan synchronization failure)
  • Page 277 To find out which problem has occurred, either: • See the Auto Service Call report that was sent to the service station for the problem with the machine. • Check the error code history using service function 06 (see page 2-31). •...
  • Page 278 Polygon Motor Fail Does the SPU receive + 24VD from the PSU? Does 1POWON go high after Copy is pressed? Replace the SPU or SCU. Replace the PSU, upper unit interlock switch, or right cover interlock switch. Does the SPU output + 24V at CN4-1, 2, and 3? Replace the SPU.
  • Page 279 LD Power Lock Fail Does the SPU receive all power supply signals from the PSU? Replace the PSU or the interlock switches. Does the master unit interlock switch component on the upper unit pass + 12V and -12V? Replace the interlock switch. Replace the master unit, LDDR, UIB, SPU, or SCU.
  • Page 280 Does the DSB output the motor drive phases? Replace the DSB, UIB, SPU, or SCU. Replace the motor. Does the UIB receive a signal from the master belt home position sensor? Does the sensor receive + 5V? Trace the + 5V supply line through the machine from the PSU to the sensor and replace the defective PCB.
  • Page 281 Lower Paper Feed Motor (Motor operation can be checked with service function 09, mode 6). Does the SPU receive + 24VD from the PSU? Does 1POWON go high after Copy is pressed? Replace the SPU or SCU. Replace the PSU, upper unit interlock switch, or right cover interlock switch.
  • Page 282 Disk Drive Error Replace the hard disk, SPU, or SCU. Disk Controller Error Replace the SPU, hard disk, or SCU. Disk Memory Logical Replace the hard disk, SPU, or SCU. Error 5-47...

  • Page 283: Error Codes

    5-5. Error Codes If an error code occurs, retry the communication. If the same problem occurs, try to fix the problem as sug- gested below. Three digit error codes can appear with a dash after the first digit; if a report shows code 9-13, see code 913 in this manual.
  • Page 284 Code Meaning Suggested Cause/Action The other end sent RTN or PIN 1. Check the line connection. after receiving a page, because 2. Check the connectors from the SCU through the machine there were too many errors (G3 to the G3NCU and modem. mode) 3.
  • Page 285 Meaning Code Suggested Cause/Action Too many errors during reception 1. Check the line connection. 2. Check the connectors from the SCU through the machine (G3 mode); RTN was sent back to the other end to the G3NCU and modem. 3. Replace the SCU, SPU, G3CCU, G3NCU, modem.
  • Page 286 Code Meaning Suggested Cause/Action CCU requested data transfer halt 1. Retry the communication. 2. Replace the G3CCU, SCU, or SPU. Timer for DMA transfer to the CCU Same as for 880. ran out Either: a) An Auto Service Call con- 1.
  • Page 287 Code Meaning Suggested Cause/Action Toner cartridge empty 1. Add toner. 2. Check the toner end mechanism. 3. Check the connections through the machine from the SCU to the toner end sensor. Replace any defective part of the cir- cuit. 1. Check all covers. Cover open 2.
  • Page 288 Code Meaning Suggested Cause/Action Master belt home position detection See section 5-4 (Home Position Fail). failure Fusing lamp failure See section 5-4 (Heater Control Fail). Pentagonal mirror motor lock See section 5-4 (Polygon Motor Fail). failure, or laser main scan synchronization failure Main motor or lower paper feed See section 5-4 (Main Motor Lock Fail).
  • Page 289 Code Meaning Suggested Cause/Action 1000 SCU - G3CCU handshake error 1. Check the connection through the machine from the SCU to the G3CCU. Replace any defective part of the circuit. 1019 2. Replace the MBU. 1030 No reply from the other end (auto- 1.
  • Page 290 Code Meaning Suggested Cause/Action 1036 Polarity reversal not detected at the 1. Retry the communication. expected time (automatic dialling) 2. Monitor the line; if polarity reversal occurs as expected but the error still occurs, replace the G3CCU, G3NCU, SPU, or SCU.
  • Page 291 Code Meaning Suggested Cause/Action 1104 PIN received from the other end (tx 1. Noisy line; retry the communication. mode) 2. Defective remote terminal. 3. Replace the modem, G3CCU, G3NCU, SPU, or SCU. 1105 Third try failed (normal response to Same as for code 1104. a signal cannot be detected after three tries) 1106...
  • Page 292 Code Meaning Suggested Cause/Action 1123 CFR signal not detected within 5 s Same as for code 1104. after phase synchronization finished, or CFR lasted longer than 6 s (G2 tx mode) 1124 MCF signal not detected within 5 s Same as for code 1104. of transmission of EOM, or MCF lasted longer than 6 s (G2 tx mode) 1160...
  • Page 293 Code Meaning Suggested Cause/Action 1166 PPR received with all bits in the FIF 1. Retry the communication. at 0 (ECM tx mode) 2. Defective remote terminal. 1201 Modem carrier cut and machine Same as for code 1104. hanged up (rx mode) 1204 Modem training failed (rx mode) Same as for code 1104.
  • Page 294 Code Meaning Suggested Cause/Action 1215 RTC could not be detected (rx Same as for code 1104. mode) 1216 EOL cannot be detected within 5 s Same as for code 1104. 1222 PIS received from the other end (G2 1. Defective remote terminal. rx mode) 2.
  • Page 295 Meaning Suggested Cause/Action Code 1263 Unexpected frame received after Same as for code 1104. sending out RNR in response to PPS-Q or RR (ECM rx mode) 1264 T2 timer ran out after receiving EOR Same as for code 1104. (ECM rx mode) 1265 Unexpected frame received after Same as for code 1104.
  • Page 296 Code Meaning Suggested Cause/Action 9401 Paper fed-out indication not Change the SPU, copy feed-out sensor, DRU, or SCU. received within 30 s of the printing start command No printer paper 9403 1. Add paper. 2. If this error occurs when paper is present, check the con- nections through the machine from the SCU to the defective cassette’s sensors and drive components.
  • Page 297 Code Meaning Suggested Cause/Action 9556 EOR was sent out and the line was See code 1165. cut (ECM tx mode) EOR was sent out and the transmis- Retry the communication if the page was illegible at the other 9557 sion resumed from the next page 9592 No response from the CCU Check the connections through the machine from the SCU to...
  • Page 298 Suggested Cause/Action Meaning Code Insufficient RAM area for hard disk See code 9608. 9626 to 9628 administration Hard disk data file destroyed See code 9608. 9629, 9630 9631 Hard disk control sequence error See code 9608. 9632 Abnormality in the hard disk ad- See code 9608.

  • Page 299: Hard Disk Troubleshooting Routines

    5-6. Hard Disk Troubleshooting Routines 1. Outline These functions display hard disk error codes and provide a few routines to help you restore the hard disk to normal operation. The various hard disk error codes will help to decide which action to take. Some hard disk error conditions lead to Auto Service Calls.

  • Page 300: Entering And Exiting Hard Disk Troubleshooting Mode

    2. Entering and Exiting Hard Disk Troubleshooting Mode ENTERING HARD DISK TROUBLESHOOTING MODE 1. From standby mode, hold down the Stop key for about 10 seconds until the machine does a warm start. 2. Immediately, press Function, then *, then #. An error message is displayed. Disregard this message unless an error code is also displayed.

  • Page 301: Error Code Display - Function 2

    3-2. Error Code Display - Function 2 See the Hard Disk Error Code table on page 5-71 for an explanation of the error codes. 1. Enter the hard disk troubleshooting mode. See page 5-65. 2. When the hard disk troubleshooting menu is displayed, enter 2 at the ten-key pad. 3.

  • Page 302: File Correction - Function 3

    3-3. File Correction - Function 3 This function allows the hard disk to attempt to recover defective files. If this routine is successful, all defective files will be recovered intact; no data will be lost. If this routine fails, it will be necessary to try routines 6 (Clear Address) and/or 7 (Clear Job) depending on the recovery method for the observed error code.

  • Page 303: Clear Address - Function 6

    3-6. Clear Address - Function 6 This function clears the address labels associated with the Quick Dials and Speed Dials used in the files on the hard disk. These “address labels” are programmed with the option setting mode of Quick/Speed Dial programming, and they have a similar function to a cover letter;...

  • Page 304: Disk Format - Function 8

    3-8. Disk Format - Function 8 This function has already been explained in section 1-6 (Installation). If there are severe hard disk problems in the field, try reformatting the disk. Note that all files will be lost. If the hard disk is still defective, replace it. 1.

  • Page 305: Error Codes

    4. Error Codes 4-1. Power-up Error Codes Meaning Code Suggested Action During system reset (power up, or 1. Check the SCU/SPU and SPU/hard disk connections. pressing Stop for 10 s), no 2. Replace the SPU. response came from the hard disk 3.

  • Page 306: Hard Disk Error Codes

    4-2. Hard Disk Error Codes Code Suggested Action Try “File Correction” (hard disk function 3). If that fails, try Clear Address (function 6). If that fails, try Clear Job (function 7). If that fails, reformat the disk (function 8). If that fails, replace the hard disk. See code 01.
  • Page 307 S E C T I O N...

  • Page 308: Section 6. Optional Bar Code Reader

    SECTION 6. OPTIONAL BAR CODE READER 6-1. Accessory Check List ..6-1 6-2. Installation Procedure ..6-2...

  • Page 309: Accessory Check List

    6-1. Accessory Check List Bar Code Reader Installation Instructions Bar Code Reader Holder Bar Code Reader Department Card Set (1 set = 10 cards) Operation Manual...

  • Page 310: Installation Procedure

    6-2. Installation Procedure 1. Turn off the main switch. 2. Open the upper unit by pushing button [A]. 3. Remove cover [B] (3 screws). 4. Install the bar code reader holder [C] (3 screws). 5. Install the bar code reader [D]. 6.
  • Page 311 S E C T I O N...

  • Page 312: Section 7. Electrical Data

    SECTION 7. ELECTRICAL DATA 7-1. Point-to-point Diagram ..7-1 7-3. Block Diagrams ... 7-32 7-2. Signal Tables ... . 7-4 1.

  • Page 313: Point-To-Point Diagram

    7-1. Point-to-point Diagram...

  • Page 316: Signal Tables

    7-2. Signal Tables 1AB11 Address bus 1. SCU 1AB12 Address bus COM1 Ground CN1 - SPU 1AB13 Address bus 1AB14 Address bus Name Function 1AB15 Address bus COM1 Ground + 5V Supply from SPU 1AB16 Address bus + 5V Supply from SPU 1AB17 Address bus + 5V Supply from SPU 1AB18 Address bus...
  • Page 317 March 26th, 199 CN1 (Continued) - SPU Name Function 5CSMAEN Not used 1D05 Data bus COM1 Ground 1D06 Data bus 5CSIO I/O chip select 1D07 Data bus COM1 Ground COM1 Ground 5RESET Reset signal 1D08 Data bus COM1 Ground 1D09 Data bus COM1 Ground 1D10 Data bus COM1 Ground...
  • Page 318 CN2 - OPU Name Function COM1 Ground + 5V supply to OPU 1D06 Data bus COM1 Ground COM1 Ground + 5V supply to OPU 1D07 Data bus COM1 Ground COM1 Ground COM2 LCD ground 5IOCS20 Chip select - 12V Supply to LCD COM1 Ground COM2 LCD ground...
  • Page 319 CN3 - SPU Name Function + 5V Supply from SPU 5HDCAEN Hard disk controller address + 5V Supply from SPU enable + 5V Supply from SPU COM1 Ground + 5V Supply from SPU 5IOCS32 Hard disk controller chip select + 5V Supply from SPU COM1 Ground...
  • Page 320 CN3 (Continued) - SPU 1AD2 Address bus for ADCR on the Name Function COM1 Ground 1INT26 Interrupt request (ADCR1) 1AD3 Address bus for ADCR on the COM1 Ground Not connected COM1 Ground 1INT14 Interrupt request from hard disk 1AD4 Address bus for ADCR on the controller 1INT32 Interrupt request from G3CCU COM1 Ground...
  • Page 321 CN4 - MBU Name Function + 5V Supply from SPU 1AB16 Address bus + 5V Supply from SPU 1AB17 Address bus + 5V Supply from SPU 1DB0 Data bus + 5V Supply from SPU COM1 Ground + 5V Supply from SPU 1DB1 Data bus + 5V Supply from SPU 1DB2 Data bus...
  • Page 322 CN4 (Continued) - MBU Function Name A28 5CSMEM2 EPROM chip select G r o u n d COM1 EPROM chip select A29 5CSMEM3 B29 5CSMEMC SRAM (battery backed-up) chip select Not used 5CSMEMF Ground COM1 Data memory read (low byte) 5LDRD Data memory write (low byte) 5LDWR...

  • Page 323: Scu

    CN4 - UIB 2. SPU Name Function CN1 - SCU + 24VD Power supply + 24VD Power supply See SCU CN1. + 24VD Power supply COM3 Ground The following pins are not connected on the COM3 Ground SPU: A35, A36, A37, A38. Ground COM3 + 12V...

  • Page 324: Vpu

    CN4 (Continued) - UIB Name Function 5REGRL Registration clutch drive (L = On) COM1 Ground COM1 Ground 5RDENA Tx motor speed feedback signal 5UFEED Upper paper feed clutch drive (L COM1 Ground = On) 5STPMV Tx motor enabled (L: Enabled) COM1 Ground COM1 Ground...
  • Page 325 CN6 - Upper Paper Size Sensor 1AB2 Address bus COM1 Ground Name Function 1AB3 Address bus COM1 Ground COM1 Ground COM1 Ground 1AB4 Address bus 5UCAS2 Signal from sensor COM1 Ground 5UCAS1 Signal from sensor 1AB5 Address bus 5UCAS0 Signal from sensor COM1 Ground COM1 Ground 1AB6 Address bus...
  • Page 326 CN7 (Continued) - CCU Boards Name Function 1INT33 Interrupt request from G3CCU 1D04 Data bus handshake port (read mode) COM1 Ground 1INT35 Interrupt request from G4CCU 1D05 Data bus handshake port (read mode) COM1 Ground 5G3RST G3 reset (L = reset) 1D06 Data bus 5G4RST...
  • Page 327 CN8 - VPU 1AD1 Address bus (ADCR) Name Function COM1 Ground COM1 Ground 1FRST FIFO reset + 5V Power supply Main scan line start sync, from COM1 Not connected COM1 Ground Not connected on VPU 5INT26 Interrupt from ADCR 1SCK8M ADCR drive clock (8 MHz) 1VPUINT Interrupt from DIPP...
  • Page 328 + 12V Power supply CN8 (Continued) - VPU + 12V Power supply Function COM2 Ground Name COM2 Ground 1SDB07 SBU drive signal COM2 Ground 1SDB06 SBU drive signal COM2 Ground 1D01 Data bus COM2 Ground 1D00 Data bus COM2 Ground 1D03 Data bus - 12V Power supply COM1 Ground...
  • Page 329 CN10 - PSU COM1 Ground 5WGATE Read/write enable (H = Read) Name Function COM1 Ground 5SECMP Seek completed + 5V Power supply COM1 Ground + 5V Power supply 5TRAK0 L: Head at track 0 + 5V Power supply COM1 Ground + 5V Power supply 5WFALT L: Head write error, will retry...
  • Page 330 CN14 - Upper Cassette Sensors CN13 - Hard Disk Function Name Function Name 5UPEXT Upper paper end sensor (H = 5DSELD L. Hard disk drive selected No paper) COM1 Ground 5UPHGH Upper paper height sensor (H = COM1 Ground Paper level low) COM1 Ground 5UPNED Upper paper near-end sensor (L COM1 Ground...
  • Page 331 CN16 - Hard Disk Fan Name Function + 24VD Power supply 5HDFAN Fan drive (L = On) CN17 - Power Pack, Toner End Sensor, Right Cover Switch Name Function + 5V Power supply COM1 Ground 5TONER Toner end sensor (Constant L = Toner present) 5DEVCL Rt.

  • Page 332: Sbu

    4. SBU 3. VPU CN1 - VPU CN1 - SPU See VPU CN2. See SPU CN8. The following pins are not connected on the 5. DRU VPU: A16, A19, B19, B22, B23, A24, B25. CN1 - Development Unit, Registration Clutch, CN2 - SBU and Upper Cassette Drive Name...
  • Page 333 CN2 - Charge Corona Fan and Main Motor CN4 - Front Transfer Corona Fan Drive, and Copy Feed-out Sensor Name Function Name Function + 24VD Power supply 5FRNFN Fan drive (L = On) + 24VD Charge corona fan power supply 6OBMFN Charge corona fan drive (L = On) + 24VD...

  • Page 334: Uib

    6. UIB CN3 - Fluorescent Lamps CN1 - DSB Name Function + 24VD Power supply Name Function 5PHTON Preheat (L = Preheat) 5DOCFD ADF clutch drive (L = On) 5DLAMP Lamp drive (L = On) 5STAMP Stamp solenoid (L = On) COM3 Ground 5DOCEX Document feed-out clutch drive (L...
  • Page 335 CN5 - Master Unit Interlock Switch CN8 - LDDR Name Function Name Function + 12V Power to switch COM2 Ground + 12VR Power from switch Laser power feedback signal XLPDET COM2 Ground Laser power control signal XLPCTL CN6 - SPU COM1 Ground 5LDDAT...

  • Page 336: Dsb

    CN5 - UIB 7. DSB See SPU CN7. CN1 - Manual Feed Switch CN6 - Stamp, ADF Clutch, Document Feed-out Name Function Clutch, Master Belt Motor 5MDFSW Manual feed switch (L = Manual Feed, H = ADF) Name Function COM1 Ground + 24VD Power supply Stamp solenoid drive (L = On)

  • Page 337: Lib

    8. LIB CN3 - Lower Paper Lift Motor, Lower Paper End, Near-end, and Height Sensors CN1 - SPU Name Function See SPU CN3. + 5V Power supply COM1 Ground CN2 - Lower Front Cover Switch, Lower Paper 5LPEND Lower paper end sensor (L = No Feed Motor, and Lower Paper Feed Solenoid paper) + 5V...

  • Page 338: Opu

    CN2 - Internal connector to keyboard CN4 - Jam Removal Switch, Lower Paper Size CN3 - Internal connector to LCD Sensor, Lower Cassette Switch CN4 - LCD Brightness Control Function Name COM1 Ground, from lower cassette sw. Name Function 2 5ENSCOM Ground, to lower cassette sw.
  • Page 339 CN4 - Upper Unit and Right Cover Interlock CN9 - From Main Switch Switches Pin assignment: same as CN6 Name Function CN10 - From Arrestor Ground (G3NCU) + 24V Power, from switches + 24V Power, to switches CN11 - PSU Fan COM1 Ground 1CVOPN H = Cover open Name...
  • Page 340 11. G3 CCU COM1 Ground 1DT1 Data bus CN1 - SPU Not used Not used See SPU CN7. + 12V Power supply 1A1 Address bus CN2 - Modem 1DT2 Data bus 1DT0 Data bus Name + 5V Power supply Function 1DT4 Data bus COM1 Ground 5IRQ1 Interrupt request...
  • Page 341 CN3 - G3 NCU 6NCULD Command/status data S/P con- Name Function vert signal COM1 Ground Rx signal, from line to modem 6NCULTC Command/status data transfer COM2 Ground latch HYBTXL Tx signal, to line from modem COM1 Ground COM2 Ground 6NCURST Command/status data reset HIRXL Not used COM1 Ground...

  • Page 342: G3 Ncu

    CN7 - Not used CN6 - Reserved for future applications Name Function Name Function - 12V Power supply COM2 Ground + 12V Power supply COM1 Ground + 5VA Power supply COM2 Not connected COM1 Ground 1HD4 COM1 Ground Data bus 1HD0 Data bus 5ADCK...

  • Page 343: Bsru

    CN6 - Not used CN2 - Network/External Telephone Name Function Name Function XFAXL1 Telephone line XTELCN1 XFAXL2 Telephone line XTELCN2 XTEL1 Handset XTEL2 Handset XGS Ground start terminal 13. BSRU CN1 - SPU. See SPU CN15. CN3 - Not used CN2 - Bar Code Reader Name Function...

  • Page 344: Overall Machine Control

    7-3. Block Diagrams 1. Overall Machine Control - Overall - 7-32...
  • Page 345 - Main CPU - 7-33...
  • Page 346 - Main/Slave CPU Interface - 7-34...
  • Page 347 - Slave CPU -...
  • Page 348 - Communication Control - 7-36...

  • Page 349: Video Data Path

    2. Video Data Path - Transmission - 7-37...
  • Page 350 - Reception - 7-38...

  • Page 352: Power Distribution

    3. Power Distribution - From PSU to SPU - 7-40...
  • Page 353 - Distribution by SPU - 7-41...
  • Page 354 - UIB and LIB - 7-42...

  • Page 355: Scanner

    4. Scanner - Fluorescent Lamps, + 24VD Power Supply - 7-43...
  • Page 356 - Document Feed Mechanism - 7-44...
  • Page 357 - CCD Drive - 7-45...

  • Page 358: Communication Control

    5. Communication Control 7-46...

  • Page 359: Printer

    6. Printer - Laser Diode Drive - 7-47...
  • Page 360 - Main Scan Synchronization - 7-48...
  • Page 361 - Fusing Lamp Power Switching - 7-49...
  • Page 362 - Fusing Lamp Temperature Monitoring -...

  • Page 363: Electrical Component Layout

    7-4. Electrical Component Layout 7-51...
  • Page 364 7-52...
  • Page 365 1. DSB (Document Sensor Board) 31. Speaker 2. UIB (Upper Interface Board) 32. Quenching Lamp 33. Upper Unit Interlock Switch 3. G3NCU (G3 Network Control Unit) 4. LSD (Laser Synchronization Detector) 34. Fluorescent Lamp Driver 35. Fluorescent Lamps 5. SMDR (Scanner Motor Driver) 36.
  • Page 366 61. Master Belt Home Position Sensor 62. Thermostat 63. Thermistor 64. PSU Fan 65. Lower Paper Feed Motor 66. Lower Paper End Sensor 67. Lower Paper Feed Solenoid 68. Lower Paper Height Sensor 69. Lower Cassette Switch 70. Lower Paper Size Sensor 71.

  • Page 367: Timing Charts

    7-5. Timing Charts 1. Scanner 7-55...
  • Page 368 2. Printer 7-56...
  • Page 369 7-57...

  • Page 371: Appendix

    APPENDIX Appendix A. Glossary ..A-1...
  • Page 372 This is used for identification instead of the TTl when com- municating with a non-Ricoh machine. Called Station Identification: A protocol signal which informs the calling station that a fax ter- minal has been reached.
  • Page 373 G3NCU Estimated Fill bit Control: A Ricoh-developed Group 3 Network Control Unit: This PCB con- compression method used with MH, MR, or MMR. It reduces the number of fill bits on a tains the hardware for connecting the line, making transmission time faster.
  • Page 374 Laser Synchronization Detector: This PCB detects the start of each scan of the laser Line Buffer: An area of memory where lines beam across the master belt. of video data are temporarily held before being passed on to the next process. This helps to ensure a smooth flow of data.
  • Page 375 Procedural Interrupt Positive: A protocol sig- nal that confirms reception of the previous that informs the calling station of the called station’s capabilities. It is also called Ricoh page, and indicates that the receiver operator wants to make a voice request.
  • Page 376 Quadrature Amplitude Modulation: The Scanner Board Unit: This PCB contains the modulation technique which enables fax CCD. machines to transmit at 9600 and 7200 bps over the PSTN. System Control Unit: This PCB contains the main cpu, which controls the machine. Remote Terminal Identification: The RTI is dis- played on the other terminal’s display panel SMDR...
  • Page 377 Transmit Terminal Identification: The TTl of the sender is printed at the top of each page as it is received at the other end. It identifies the sender. Upper Interface Board: This PCB links the SPU to components in the upper unit of the machine.

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