Oki MC770 Service Manual
  1. Manuals
  2. Brands
  3. Oki Manuals
  4. Fax Machine
  5. MC770 series
  6. Service manual

Oki MC770 Service Manual

Hide thumbs Also See for MC770:
Table of Contents

Advertisement

Quick Links

Download this manual
MC770 / MC780
MPS3537mc / MPS4242mc
GD-1340 FAX Unit
Service Manual
060313A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MC770 and is the answer not in the manual?

Questions and answers

Related Manuals for Oki MC770

Summary of Contents for Oki MC770

  • Page 1 MC770 / MC780 MPS3537mc / MPS4242mc GD-1340 FAX Unit Service Manual 060313A...
  • Page 2 Nothing contained herein shall be construed as conferring by estoppel, implication or otherwise any license or right under any patent or trademark of Oki Data, Oki Electric Industry Co., Ltd. ("Oki Electric"), or any third party. Except as provided above nothing contained herein shall be construed as conferring any license or right under any Oki Data copyright.
  • Page 3 • Other company names and product names in this manual are the trademarks of their respective companies. © 2013 OKI DATA CORPORATION All rights reserved Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of OKI DATA CORPORATION.
  • Page 4 Oki Data CONFIDENTIAL GeNeRaL PReCaUTIONs ReGaRDING THe seRVICe FOR GD-1340 The installation and service shall be done by a qualified service technician. 1) Transportation/Installation - When transporting/installing the equipment, employ two or more persons and be sure to hold the positions as shown in the figure. The equipment is quite heavy and weighs approximately 60 kg (132.27 lb.) (including the finisher), therefore pay full attention when handling it.

  • Page 5: Cautionary Labels

    If these parts are short-circuited and their functions become ineffective, they may result in fatal accidents such as burnout. Do not allow a short-circuit and do not use the parts not recommended by OKI DATA Corporation. 4) Cautionary Labels - During servicing, be sure to check the rating plate and cautionary labels such as “Unplug the power cable during service”, “CAUTION.

  • Page 6: Table Of Contents

    Oki Data CONFIDENTIAL CONTeNTs 1. eRROR CODes ....................1-1 1.1 Transmission/Reception Journal and Error Code List ........1-1 1.2 Error Messages ....................1-4 2. seLF-DIaGNOsIs mODe ..................2-1 2.1 Test Mode (03) .....................2-2 2.2 Adjustment Mode (05) ..................2-4 2.3 Setting Mode (08) ..................2-6 2.4 Function Mode (13) ..................

  • Page 7: Error Codes

    Oki Data CONFIDENTIAL 1. eRROR CODes 1.1 Transmission/Reception Journal and Error Code List The transmission journal is shown below. The error code list and status code list are available in the following pages. The reception journal is output in the same form.
  • Page 8 Oki Data CONFIDENTIAL 1) Error code list If an error has occurred during communication, an error code is indicated below “STATUS” on the transmission/reception journal. Take the appropriate action referring to the following list. Error code Content Situation and corrective action...
  • Page 9 Oki Data CONFIDENTIAL Error code Content Situation and corrective action 00D0 Post message not detected A post message cannot be detected. Retry the communication. MCF, RTP, RTN, PIN and PIP cannot be detected on the sending side. MPS, EOM and EOP cannot be detected on the receiving side.

  • Page 10: Error Messages

    Oki Data CONFIDENTIAL 1.2 Error Messages Error messages are not displayed for the background jobs (memory transmission and memory reception). See the reception/transmission report for the details of the errors. If an original jam during the direct transmission or recording paper jam during printing occurred, error messages are displayed like when original jam occurred in the equipment.

  • Page 11: Self-Diagnosis Mode

    Oki Data CONFIDENTIAL 2. seLF-DIaGNOsIs mODe There are two types of the self-diagnosis mode for the FAX operation. • Test mode (03), adjustment mode (05) and setting mode (08): Some items are added to the test mode (03), adjustment mode (05) and setting mode (08) of the self-diagnosis function when the optional FAX unit is installed.

  • Page 12: Test Mode (03)

    Oki Data CONFIDENTIAL 2.1 Test Mode (03) The modem test output, dialing test output and CML test output are performed in the Test Mode (03). 1) Modem test / CML test [Operation procedure] [ CLEAR ] [ 0 ] [ 3 ]...
  • Page 13 Oki Data CONFIDENTIAL Test code list Code Element Test 03-301 Modem test 2100 Hz 03-302 Modem test 14.4 kbps (V.17) 03-303 Modem test 9.6 kbps (V.29) 03-304 Modem test 4.8 kbps (V.27) 03-305 Modem test 300 BPS 03-306 Modem test 1850 Hz...

  • Page 14: Adjustment Mode (05)

    Oki Data CONFIDENTIAL 2.2 Adjustment Mode (05) Parameter setting for the FAX image processing is performed in the Adjustment Mode (05). 1) Setting parameters for the FAX image processing [Operation procedure] [ OK ] [ 0 ] [ 5 ]...
  • Page 15 Oki Data CONFIDENTIAL 2) Volume adjustment of ring-back tone [Operation procedure] [ INTERRUPT ] [ 0 ] [ 5 ] [ Digital key ] [ START ] [ Digital key ] [ Digital key ] [ POWER ] OFF (Ring)

  • Page 16: Setting Mode (08)

    Oki Data CONFIDENTIAL 2.3 Setting Mode (08) The destination is set in the Setting Mode (08). Note: For the self-diagnosis code in the setting mode (08) not described in this manual, refer to "11. SELF-DIAGNOSIS CODE (03/04/05/08 CODE)" of the Service Manual Software Guide.

  • Page 17: Function Mode (13)

    Oki Data CONFIDENTIAL 2.4 Function Mode (13) Various functions are set in the Function Mode (13). 1) Procedure to set the functions Key in a code and change the set value. [Operation procedure] [ CANCEL ] [ OK ] [ 1 ] [ 3 ]...
  • Page 18 Oki Data CONFIDENTIAL Function code list (100-999) 100-299 Adjustment within the dialing standards Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Sets the dial tone 0: 300-600 Hz frequency frequency to be 1: 300-650 Hz (PSTN)
  • Page 19 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-9 / 45585002TH Rev.1...
  • Page 20 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Sets the 0: OFF allowed interruption time 1: 50 ms gaps for the PABX to 2: 100 ms (PABX) be ignored during 3: 200 ms LCC.
  • Page 21 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-11 / 45585002TH Rev.1...
  • Page 22 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR CML hold Pause after dialing 0: 0 ms time after 1: 10 ms dialing ¦ 255:2550 ms Dial Sets the definition 0: Normal informa- of the DP dial.
  • Page 23 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE 2-13 / 45585002TH Rev.1...
  • Page 24 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR DP make/ Sets the make/ 0: 60/40 break break ratio for DP (10 PPS) ratio dialing. 1: 67/33 (10 PPS) 2: 63/37 (10 PPS) 3: 50/50...
  • Page 25 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-15 / 45585002TH Rev.1...
  • Page 26 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Internat- Selects the 00: No detection ional frequency range for 01: 300-600 Hz DTC fre- the dial tone of the 02: 300-650 Hz quency first pause to be 03: 390-550 Hz detected.
  • Page 27 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 2-17 /...
  • Page 28 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR MF dial Sets the difference 0: 0 dB level between the high 1: -1 dB balance output and low ¦ output of the MF 4: -4 dB sig nal.
  • Page 29 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 2-19 /...
  • Page 30 Oki Data CONFIDENTIAL 300-699 Adjustment for switching function specfications Default Adjust- Function Setting ment ASM AUS HKG USA DEU GBR CI history Sets the time for 0: 5 sec hold time the CI history to 1: 8 sec remain. 2: 14 sec...
  • Page 31 Oki Data CONFIDENTIAL Default Code SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-21 / 45585002TH Rev.1...
  • Page 32 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Echo Sets if a delay (500 0: OFF protection ms) is inserted 1: ON (500 ms) delay before sending the (high V.21 signal and speed) timing is shifted to (V.21)
  • Page 33 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR FRA GRC POL HUN CZE TUR ZAF TWN RUS BRA 2-23 / 45585002TH Rev.1...
  • Page 34 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Off-hook Sets the volume of 0: No alarm alarm the alarm sounded 1: Level 1 (Min.) when the handset ¦ has been left off the...
  • Page 35 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-25 / 45585002TH Rev.1...
  • Page 36 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Result Sets whether 0: OFF report the relay multi- 1: Always printout address 2: On error for relay transmission report 3: Always (W) hub sta- is printed or not.
  • Page 37 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 2-27 / 45585002TH Rev.1...
  • Page 38 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR Speaker Sets the speaker 0: Level 0 (Min.) volume vol ume for on-hook ¦ (monitor status or protocol 7: Level 7 tone) monitor. (Max.) Discard...
  • Page 39 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 13 - 13 - 2-29 / 45585002TH Rev.1...
  • Page 40 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Commu- Sets how the 0: EOR trans - nication communication mitted control in is controlled when 1: CTC case the 4th PPR is...
  • Page 41 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 2-31 / 45585002TH Rev.1...
  • Page 42 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Trans- Sets the header 0: Not inserted mission insertion. 1: Inserted informa- tion at header 13 - Thresh old After receiving a 0: 5%...
  • Page 43 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 13 - 2-33 / 45585002TH Rev.1...
  • Page 44 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Fall-back Sets the number 0: Once condi- of the PPR 1: Twice tion for transmission for ¦ receiver fall-back condi tion 10: 11 times (No.
  • Page 45 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 2-35 / 45585002TH Rev.1...
  • Page 46 Oki Data CONFIDENTIAL Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR V.34 Sets the initial value 0: 2,400 symbol for the symbol rate 1: 2,800 rate for V.34 communi- 2: 3,000 cation. Maxi mum 3: 3,200...
  • Page 47 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 13 - 13 - 13 - 2-37 / 45585002TH Rev.1...
  • Page 48 Oki Data CONFIDENTIAL 700-749 Adjustment of telephone function Default Adjust- Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Pseudo Selects the ring- 0: Alternate ring-back back tone waveform transmis- tone out put in the TEL/ sion with 2 wave form FAX mode.
  • Page 49 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 2-39 / 45585002TH Rev.1...
  • Page 50 Oki Data CONFIDENTIAL 900-999 Adjustment of system setting Default Adjust - Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Format Sets either "the 0: Phone of Fax phone number number by destina- transmitted by CSI signal tion dis- CSI signal"...
  • Page 51 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 2-41 / 45585002TH Rev.1...
  • Page 52 Oki Data CONFIDENTIAL Default Adjust - Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Paper Selects either size, 0: A4 width A4 or B4, to declare 1: B4 declara- the paper size tion in when “0: Paper”...
  • Page 53 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 13 - 13 - 13 - 13 - 13 - 2-43 / 45585002TH Rev.1...
  • Page 54 Oki Data CONFIDENTIAL Default Adjust - Code Function Setting ment ASM AUS HKG USA DEU GBR 13 - Format of Sets whether the Priority of address format of address recording items for trans- for transmission/ in journal mission/ reception jour nal.
  • Page 55 Oki Data CONFIDENTIAL Default Code CHE SWE DNK NOR PRT FRA GRC POL HUN CZE ZAF TWN RUS BRA 13 - 2-45 / 45585002TH Rev.1...

  • Page 56: Fax Clearing Mode (1*)

    Oki Data CONFIDENTIAL 2.5 FAX Clearing Mode (1*) Various FAX memories are initialized in the FAX clearing mode (1*). 1) Memory Areas User registration area (SRAM) ID registration area Home position Image data area (HDD, SRAM) Transmission file Reception file...
  • Page 57 Oki Data CONFIDENTIAL [Operation procedure] Initialization “CL” [ OK ] [ POWER ] OFF [ 1 ] [ * ] [ Digital key ] [ START ] proceeded displayed [ POWER ] ( Code ) After approx. 10 sec. [ CANCEL ] Fig.

  • Page 58: Troubleshooting

    Oki Data CONFIDENTIAL 3. TROUBLesHOOTING 3.1 Diagnosis Over Telephone Most problems end users inquire are the results of the following. Therefore, ask the nature of the trouble (in detail) first to seek the cause. These questions can lead to a speedy resolution of the trouble without the need for a service technician.

  • Page 59: Recommend Flow Chart For Field Service

    Oki Data CONFIDENTIAL 3.2 Recommend Flow Chart for Field Service Call from customer Trouble solved Service technician does not Telephone screening need to be dispatched Not solved Dispatch a service technician ( Field service ) Not solved Assistance by phone for the field...

  • Page 60: Flow Chart For Recommended Telephone Screening

    Oki Data CONFIDENTIAL 3.3 Flow Chart for Recommended Telephone Screening START Turn ON the power with no recording paper or document Is the AC Is “ADD PAPER” dis- power cable properly Plug it in properly played on the LCD? plugged in?
  • Page 61 Oki Data CONFIDENTIAL Any problem with Using specified Use the specified the copied image? recording paper? recording paper Dispatch a service technician Any problem with the auto-dialing function? “COMMUNICATION Dispatch a service ERROR” displayed on technician the LCD? Select the correct dial...
  • Page 62 Oki Data CONFIDENTIAL Any problem with the transmission? Transmission is not possible if the receiving side the receiving side using a is using G3 machine? G2 or MF machine Check the error code and dispatch a service technician Any problem with...

  • Page 63: Error Analysis Flow

    Oki Data CONFIDENTIAL 3.4 Error Analysis Flow 3.4.1 Self-Diagnosis function Service technicians can figure out the contents of the error with the following information: 1) Display on the LCD panel 2) Error code on the transmission/reception journal 3.4.2 Precautions for diagnosis Service technicians should output the Address Book / Group Number Information and Function List for Maintenance.

  • Page 64: Fault Analysis

    Oki Data CONFIDENTIAL 3.5 Fault Analysis 3.5.1 Power-ON is not possible 1) Check if the power cable is plugged into an appropriate outlet (of the correct voltage). 2) Check if the rated voltages are being output from the switching power supply. When the measured voltage is not the rated value, replace the switching power supply.

  • Page 65: Communication Error

    Oki Data CONFIDENTIAL 3.5.5 Communication error Communication errors may occur when the condition of a particular phone circuit happens to be bad at the time of attempting the communication job. Therefore, do the communication over again. If communication errors occur too many times, prepare another (operational) FAX unit and check the communication condition among the three FAX units, thus analyzing the troubles.

  • Page 66: Lists Required At Problem In The Field

    Oki Data CONFIDENTIAL 3.6 Lists Required at Problem in the Field Output the following lists when problem occurs in the field. They are described in the order of the priority the most important one come first in this section. It is not necessary to output these lists immediately after the trouble has occurred, but they must be prepared for any kind of trouble regarding the FAX operation.
  • Page 67 Oki Data CONFIDENTIAL 3) Select the desired list and then press [PRINT]. Fig. 3-3 The FAX LIST PRINT MODE menu contains the following lists to select: Protocol trace list (Line 1) Error count list (transmis./recept.) (Line 1) ERROR COUNT LIST (Internet FAX)

  • Page 68: Other Information Required For Error Analysis

    Oki Data CONFIDENTIAL 3.7 Other Information Required for Error Analysis The following information is also needed to analyze the malfunction (especially a communication error). Check the circles below if they are applicable. 1) If the error is cleared or not.
  • Page 69 Oki Data CONFIDENTIAL Conditions of RADF (this information is needed for transmission error) Originals have been all exited Abnormal (original jam, etc.) Others (be as specific as possible): Condition/State of the communication Transmission error Reception error ECM mode G3 mode Image errors such as stream image or interrupted image occur in the G3 mode when the noise occurs on the line.
  • Page 70 Oki Data CONFIDENTIAL Configuration of the units (Illustrate the units connected to your machine such as the telephone lines, exchange system, telephones, modems, etc.) Settings of the Auto Power Save and Auto Shut Off Auto-clear timer (08-9110) = Auto Power Save (08-9111) =...

  • Page 71: Precautions For Installation Of Fax Unit

    Oki Data CONFIDENTIAL 4. PReCaUTIONs FOR INsTaLLaTION OF FaX UNIT 4.1 Installation of FAX Unit After unpacking and installing the FAX unit following the unpacking/setup instructions, be sure to perform “FAX Clearing Mode / FAX Set Up” described with the same instructions. The unit is not turned ON without this operation.

  • Page 72: Country/Region Code

    Oki Data CONFIDENTIAL 4.2 Country/Region Code Set the country/region code after the installation of the FAX unit is finished. Note: All data stored in the SRAM are erased when the country/region code is set/changed. Setting the country/region code 1) Turn ON the power while pressing [0] and [8] simultaneously.
  • Page 73 Oki Data CONFIDENTIAL • Country/region setting using the FG harness on the NCU board. These country/region require code setting on the NCU using the FG harness. All other countries/regions have only W1 connection on the board. DEU GBR CHE SWE DNK NOR...

  • Page 74: Firmware Updating

    Oki Data CONFIDENTIAL 5. FIRmWaRe UPDaTING THe FAX firmware FAX Function (T.30 protocol and line control) has been installed in the ROM on the FAX board. When updating the firmware to the latest version is required or the equipment does not operate properly due to the damage of the firmware for some reason, the firmware can be updated by using the download jig (K-PWA-DLM-320).
  • Page 75 Oki Data CONFIDENTIAL (3) Open the scanner and top cover. Remove the two screws [1] and two screws [2]. Fig. 5-2 (4) Release 2 latches. Fig. 5-3 5-2 / 45585002TH Rev.1...
  • Page 76 Oki Data CONFIDENTIAL (5) Release 2 latches. Fig. 5-4 (6) Release the latch. Fig. 5-5 5-3 / 45585002TH Rev.1...
  • Page 77 Oki Data CONFIDENTIAL (7) Close the scanner and top cover, then open the feeder unit. Remove the right side cover [1]. Fig. 5-6 (8) Connect the download jig [1] with the jig connector [2] on the FAX board. Fig. 5-7 (9) Turn ON the power while [0] button and [8] button are pressed simultaneously.
  • Page 78 Oki Data CONFIDENTIAL (11) Turn OFF the power, then remove the download jig, then install the right side cover. (12) In the FAX Clearing Mode, perform the “FAX Set Up”. • Confirm the destination setting is correct in the Setting Mode (08).

This manual is also suitable for:

Mc780Mps3537mcMps4242mcGd-1340

Table of Contents