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Oki OKIOFFICE44 Service Manual

Oki OKIOFFICE44 Service Manual

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OKIOFFICE 44

Service Manual

59276801
All specifications are subject to change without notice.

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  • Page 1: Service Manual

    OKIOFFICE 44 Service Manual 59276801 All specifications are subject to change without notice.
  • Page 2 Disclaimer This document may not be reproduced without the written permission of OKIDATA Training and Publications. Evert effort has been made to ensure the accuracy of the information contained in this training course. OKIDATA is not responsible for errors beyond its control. Copyright / About Information Copyright 1997 by OKIDATA.

  • Page 3: Table Of Contents

    Contents Section 1: General Information ............... 1 - 1 General Performance ......................1 - 1 General User's Function ...................... 1 - 4 General Maintenance Functions ..................1 - 7 General Appearance ......................1 - 8 Basic Performance Specifications ..................1 - 9 Reports and Lists .......................
  • Page 4 2.9.4 User’s Functions ....................2 - 37 User's Functions..................... 2 - 38 Feature Specifications Table 2.9.3 (1/3) ..............2 - 38 Feature Specifications Table 2.9.3 (2/3) ..............2 - 39 Feature Specifications Table 2.9.3 (3/3) ..............2 - 40 One-Touch Key Program Settings (Flowchart) ............. 2 - 41 One-Touch Key Program Settings [Table 2.9.4} (1/4) ..........
  • Page 5 Section 3: Brief Technical Description ........... 3 - 1 Electrophotographic Process Flow ....................3 - 1 Fundamentals of the Electro-Photographic Process ............3 - 2 Actual Electrophotographic Process ..................3 - 5 Boards and Units ......................... 3 - 6 Block Diagram (Figure 3.3.1)....................3 - 7 Overall Dimension and Mechanical Structure..............
  • Page 6 Section 6: Cleaning and Maintenance ............ 6 - 1 Consumables Replacement ....................6 - 1 User Replaceable Items Life....................6 - 1 Service Parts Life......................... 6 - 1 Consumables Diagram (Figure 6.1.1).................. 6 - 1 Others ..........................6 - 3 Reliability Table (6.1.1.) ..................
  • Page 7 7.1.12 Tone Send Test ....................... 7 - 19 7.1.13 High-speed Modem Test ..................7 - 20 7.1.14 MF Send Test ......................7 - 22 7.1.15 Tone (TEL/FAX) Send Test ................... 7 - 23 7.1.16 No Acoustic Line Monitor ..................7 - 24 7.1.18 No Document Feeding ...................
  • Page 8 Appendix A: Board Descriptions ............A - 1 PREFACE ............................A - 1 Service Caution ........................A - 1 A1.1 Unit Configuration and Block Diagram ................A - 3 OKI OFFICE44 Block Diagram Figure (A1.2.1) ............... A - 4 Block Diagram Abbreviations .................... A - 5 A1.2 Function of Each Unit ......................
  • Page 9 Appendix B: Print Operation Description ..........B - 1 B1.1 Electrophotographic Processor ................... B - 1 Layout Drawing of Electrophotographic Processor (Figure B1.1)........B - 1 Paper Feeding Diagram (Figure B1.2) ................B - 3 B1.2 Electrophotographic Process ....................B - 4 Electrophotographic Process Diagram (Figure B1.3)............
  • Page 10 Appendix E: Board Layout ..............E - 1 TLHV PCB ......................... E - 1 Service Caution ........................E - 1 MEM PCB .......................... E - 2 TEL-U PCB ........................E - 3 Hook PCB ........................... E - 4 Appendix F: Second Paper Feeder ............F - 1 General Information ......................
  • Page 11 Appendix H: Product Service Bulletins ..........H - 1 General Information ......................H - 1 OKIDATA's Web Site ......................H - 1 Faxable Facts ........................H - 1 OKILINK II ........................H - 1 Service Caution ..........................H - 3 Appendix I: Recommended Spare Parts List (RSPL) ......
  • Page 12 This page was intentionally left blank. Table of Contents TOC - 10 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 13: Section 1: General Information

    • 128 mm to 356 mm (5.06 inches to 14 inches) (Length setting: Infinite is also available.) (7) Automatic document feeder (ADF) • 20 sheets for OKIOFFICE44 North American Letter/A4-size: 20-1b bond • 15 sheets (North American Letter/A4-size: 13 to 28-1b bond) (8) Recording paper or sheet •...
  • Page 14 (11) Copy stacker • Maximum 30 sheets (20 lb. bond *) *: Recommended paper (12) Scanning resolution a) Horizontal • 8 pels/mm b) Vertical Transmission mode: 3.85 line/mm FINE 7.7 line/mm EX. FINE 15.4 line/mm COPY mode: FINE 7.7 line/mm EX.
  • Page 15 (19) Coding scheme • Modified Huffman (MH) • Modified READ (MR) • Modified Modified READ (MMR) (20) Modem (Rev. 2) • ITU-T Rec. V.29: 9600/7200 bps • ITU-T Rec. V.27 ter: 4800/2400 bps • ITU-T Rec. V.21 channel 2: 300 bps •...

  • Page 16: General User's Function

    General User's Function (1) Transmit mode • Automatic transmit mode • Manual transmit mode (2) Receive mode • Automatic receive mode • Manual receive mode • TEL/FAX automatic switchover mode • TAD mode • PC Mode (3) Dual Access Not available for the OKIOFFICE 44 (4) Voice request (5) Automatic redial (6) Last number redial (Manual redial)
  • Page 17 (20) G3 sequential broadcast (Memory) • Broadcast mode 56 stations at maximum • Delayed broadcast mode (21) No paper/no toner reception (22) Memory-only reception Not available for the OKIOFFICE 44 (23) Distinguishing Text from picture (24) Page re-transmission (Only in case of memory TX mode) Retransmits in page units (25) Reduction printing (Reduction rate is from 100% to 75%.) (Legal to Letter) (26) Smoothing printing (In case of 3.85R/mm...
  • Page 18 (41) Date and clock adjustment (42) PC interface • Standard (43) Language selection • 2 languages (LCD and Reports) English / Spanish English / French (42) Fax forwarding Not available for the OKIOFFICE 44 (44) Reports • Activity report • Protocol report (Service man setting) •...

  • Page 19: General Maintenance Functions

    General Maintenance Functions (1) Self-diagnosis • CPU ROM/RAM check • FLASH (/MASK) memory check (Program, Language, Default) • RAM check • RAM check (MEMORY board: option) • PC-IF board (parallel) check • Print test (2) Sensor calibration (Adjustment of scanning level) (3) LED test (4) Tone send test (5) Multi-frequency (MF) send test...

  • Page 20: General Appearance

    Figure 1.4.1 shows the general appearance of the OKIOFFICE 44 Tray-Paper Tray-Document Cover-Top Case-OPE (T) Cover-Front Cover-Main Cover Manual Document Stacker-Document (Optional) (FX048 CP4.1 Fig. 01) Figure 1.4.1 General Appearance of OKIOFFICE44 General Information 1 - 8 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 21: Basic Performance Specifications

    Basic Performance Specifications Table 1.5.1 shows basic performance specifications. Note: Technical function setting Function program setting One-touch key pressed SELECT FUNCTION key pressed Table 1.5.1 (1/11) Basic Performance Specifications Item Specifications Applicable line 1) Public switched telephone network (PSTN) 2) Private branch exchange (PBX) (OT9+2) Line interface 1) Impedance 600 ohms balanced...
  • Page 22 Table 1.5.1 (2/11) Basic Performance Specifications Item Specifications Effective reading width Communication Effective reading Document Width Copy size Mode/Paper width width 208 mm ISO A4 G3/A4 8.19 inches 210 mm Local Copy: 200 mm 8.27 inches 7.87 inches 215 mm Letter G3/A4 Letter...
  • Page 23 Table 1.5.1 (3/11) Basic Performance Specifications Item Specifications NOTE: Recording paper or sheet For best results, use Okidata recommended papers Xerox 4200 (20 lb/base weight paper) Paper approved for xerographic (copier/laser) printing process Automatic Feed 1) Type: Plain paper cut (Bond paper) 2) Size: 210 x 297 millimeters 8.27 x 11.69 inches...
  • Page 24 Table 1.5.1 (4/11) Basic Performance Specifications         Q R S T U V W X Y Item Specifications Effective recording area PL = Page Length PW = Page Width EL = Effective Length EW = Effective Width T = Top Margin B = Bottom Margin...
  • Page 25 Table 1.5.1 (5/11) Basic Performance Specifications Item Specifications Copy stacking The fax can discharge printed copies and stack them faceup. Maximum sheets on the copy stacker: 30* Note*: Oki Data recommended paper Scanning resolution Horizontal: • 8 pel/mm Vertical: Transmission mode: •...
  • Page 26 PAPER OUT / JAM CONFIRM AND“STOP” Minimum scan line time for receiving 0 ms, when receiving from an Oki Data facsimile. 5 ms at 7.7 line/mm and 10 ms at 3.85 line/mm when receiving from a non-Oki Data facsimile. Coding scheme...
  • Page 27 Continuous PPRs for the same partial page within each fallback rank. Protocol 1) ITU-T Rec. T.30 2) Oki Data special protocol High-speed protocol The T.30 protocol signal from the transmitting station is sent at message transmission speed instead of 300 bps.
  • Page 28 ITU-T No.1 sample document is used to count the number of sheets. Back-up time on electrical interruption: Note: OKIOFFICE44 does not back up the message received in memory for the power failure. Telephone handset General telephone function is available while the power is on.
  • Page 29 Table 1.5.1 (9/11) Basic Performance Specifications Item Specifications Power supply unit and power consump- tion of the machine Power consumption of the machine (Typical power) OKIOFFICE44 Transmit Receive 115W Local copy 150W Standby ** Power save mode is automatic for the OKIOFFICE 44.
  • Page 30 Table 1.5.1 (10/11) Basic Performance Specifications Item Specifications Ambient condition See Figure 1.5.1 1) Operating condition See Figure 1.5.1 2) Storage condition Figure 1.5.1 Temperature and Humidity Conditions (Figure 1.5.1 Ambient Conditions) 28 C85% 18 C80% 27 C80% 10 C73% 0 C64% 32 C54% 10 C30%...
  • Page 31 Table 1.5.1 (11/11) Basic Performance Specifications Item Specifications Dimension 1) Width: Approx. 312 mm (12.28 inches) (Main body) 2) Depth: Approx. 383 mm (15.08 inches) 3) Height: Approx. 190 mm (7.48 inches) Weight Approx. 8 kg (17.6 lbs) (Main body) Excluding optional units, recording paper and packing materials.

  • Page 32: Reports And Lists

    Reports and Lists Table 1.6.1 shows Reports and Lists Specifications. Note: F +OT: Press FUNCTION and One-touch key Function program setting Technical function setting Table 1.6.1 (1/2) Reports and Lists Specifications Item Specifications Call-back message The transmitter sends a call-back message to the receiver only when the receiver does not respond to voice request of the transmit- ter.
  • Page 33 Table 1.6.1 (2/2) Reports and Lists Specifications Item Specifications Confidential reception report The fax can print out this report automatically on completion of a confidential reception. Telephone directory This directory is printed manually. (REPORT PRINTING +3) Configuration report This report is printed manually. (REPORT PRINTING +4) General Information 1 - 21...
  • Page 34 Call-back Message Format: (Example) 07/01/96 09:24 OKI SHIBAURA OKI HONJO NO.002 PLEASE CALL BACK SHIBAURA =103 5476 1234 (F050-C1-002) (1) Date and time (2) Sender ID (3) CSI/Personal ID (4) Letters "PLEASE CALL BACK" (5) Sender ID (6) Sender's call back telephone number Sender ID Format: (Example) 07/01/96 15:06...
  • Page 35 TSI Printing and Local Date and Time Printing Format: (Example) 07/01/96 15:48 3454 1999 TSI printing Local date and time printing (F050-C1-004) Note: TSI printing (TF+05) Local date and time printing (TF+04) General Information 1 - 23 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 36 This page was intentionally left blank. General Information 1 - 24 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 37: Power Outage Report

    Cancel Report Format: (Example) POWER OUTAGE REPORT 05/19/96 17:05 ID=OKI DATE TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 05/17 10:10 0485-88-3385 9080 05/17 10:30 ODS TAKASAKI 0000 05/17 12:05 01'20" OKI FAX BOX=01 0000 05/17 13:00 00'20" 03-5476-4300 CALLED 0000 05/17 15:40...

  • Page 38: Activity Report

    Message Confirmation Report Format: (Example) ACTIVITY REPORT 05/19/96 17:05 ID=OKI TOTAL TIME CALLING=08:22' CALLED=17:30' DATE TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT (10) (11) (12) 05/17 10:00 01'20" OKI FAX CALLING 0000 05/17 10:10 01'00" 0485 88 3385 CALLING STOP 9080 05/17...
  • Page 39 Title of the report Date and time when the report was printed Sender ID Total CALLING and CALLED time Date of transmission or reception Time when the communication started Time span of the fax communication. Identification of the remote station Personal ID/Location ID/TSI/CSI/Dial number or space Communication mode: (Rev.2)
  • Page 40 Message Confirmation Report Format (1/2): (Example) MESSAGE CONFIRMATION 07/01/96 08:05 ID=OKI (10) DATE S.R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 00'20" OKI FAX CALLING 0000 (F050-C1-008 1/2) General Information 1 - 28 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 41 Message Confirmation Report Format (2/2): (Example) MESSAGE CONFIRMATION 07/01/96 17:05 ID=OKI (10) DATE S.R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 00'20" OKI FAX B.C. COMP 60A0 07/01/96 17:00 OKIFAX No.022 150 km (11) (F050-C1-008 2/2) (1) Title of the report (2) Date and time when the report was printed (3) Sender ID (4) Date of transmission or reception...

  • Page 42: Broadcast Entry Report

    Broadcast Entry Report Format: (Example) BROADCAST ENTRY REPORT 07/01/96 17:05 ID=OKI LOCATION ID LOCATION ID LOCATION ID ONE TOUCH 1 = OT1 2 = OT2 3 = OT3 4 = OT4 5 = OT5 6 = OT6 7 = OT7 8 = OT8 9 = OT9 10 = OT10 *1...

  • Page 43: Broadcast Confirmation Report

    Broadcast Confirmation Report Format: (Example) BROADCAST CONFIRMATION REPORT 07/01/96 17:05 PAGES = 01 ID=OKI TOTAL TIME = 00:02'30" LOCATION ID PAGES RESULT LOCATION ID PAGES RESULT ONE TOUCH 1 = OT1 2 = OT2 3 = OT3 4 = OT4 5 = OT5 AUTO DIL 01 = AD1...
  • Page 44 Telephone Directory for OKIOFFICE 44 (1/2): (Example) TELEPHONE DIRECTORY P1 07/01/96 19:19 ID=OKI DATA CORP. LOCATION ID TEL NO. PRM. ECHO ONE TOUCH OKI SERVICE 123 123 123 (OFF) 111 222 333 OKI OFFICE 456 456 456 (OFF) 444 555 666...
  • Page 45 Telephone Directory for OKIOFFICE 44 (2/2): (Example) TELEPHONE DIRECTORY P2 07/01/96 19:20 ID=OKI DATA CORP. GROUP NUMBER = #1 #2 #3 #4 #5 #1 ONE TOUCH 9 10 AUTO DIAL 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25...
  • Page 46 Configuration Report (User) CONFIGURATION NOTE: The function settings shown ARE NOT the factory defaults. 07/01/96 17:05 Refer to Section 2 for the technical func- ID=OKI tion setting defaults. FUNCTION LIST 01:MCF (SINGLE-LOC.) 02:MCF (MULTI-LOC.) 03:ERR.REPORT (MCF) 04:MESSAGE IN MCF 05:SENDER ID. 06:MONITOR VOLUME 07:BUZZER VOLUME 08:CLOSED NETWORK...
  • Page 47 Service Default Report (Configuration Report: Service bit=ON) CONFIGURATION 07/01/96 17:05 ID=OKI FUNCTION LIST 01:SERVICE BIT 02:MONITOR CONT. 03: COUNTRY CODE 04:TIME/DATE PRINT 05:TSI PRINT 06: NO TONER MEM. RX 07:TAD MODE 08:REAL TIME DIAL 09: TEL/FAX SWITCH TYPE2 TYPE2 10:MDY/DMY. 11:LONG DOC.
  • Page 48 This page was intentionally left blank. General Information 1 - 36 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 49: Section 2: Installation

    Section 2: Installation General Setup Information The following flowchart outlines the installation procedure. (See 2.2) Site selection (See 2.3) Unpacking (See 2.4) Check of contents (See 2.5) Installation of attachments (See 2.6) AC cord connection (See 2.7) Telephone and line connections (See 2.8) Packing for shipment (See 2.9.1)
  • Page 50 System data programming (See 2.9.8) TSI/sender ID included. One-touch key programming Two-digit auto dial programming Group setting (See 2.9.9) Dial parameter settings Programming mail box password Memory operations (See 2.9.10) Off-line tests (See 2.9.11) On-line tests (See C) Installation of optional units •...

  • Page 51: Site Selection

    Site Selection INSTALLATION Precautions for Installation (1) Fluctuation in line voltage • 120V AC (102V to 127V) • 230V AC (198V to 264V) (2) Room temperature 50 to 90 degrees Fahrenheit (10 to 32 degrees Celsius) (3) Humidity 20 to 80% RH (4) Operating environment Pressure: Equivalent to altitude of 2500 m and below.

  • Page 52: Unpacking

    Unpacking 2.3.1 Unpacking for OKIOFFICE 44 Procedure (1) Remove tape on the top of the carton box and open its cover. External carton box Packing tape Packing tape Carton label FX048-C2-003 Figure 2.3.1.1 Unpacking Procedure (1) (2) Take out the accessory box from the carton box. (See Figure 2.3.1.1) (3) Take out the machine with plastic wrapper from the box.
  • Page 53 External carton box FX048-C2-004 Figure 2.3.1.1 Unpacking Procedure (2) Installation Procedure 2 - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 54: Check Of Contents

    Check of Contents After having taken out the machine and accompanied accessories from the carton box, check the contents according to the following list: Table 2.4.1 Contents List for OKIOFFICE 44 Item No. Name Q'ty Remarks OKIOFFICE 44 AC power cord I/D unit Already installed.

  • Page 55: Installation Of Attachments

    Installation of Attachments (1) Items • Image Drum (ID) Unit (already installed) • Toner cartridge • Recording paper • Tray-paper, Tray-document and Document-stacker (2) Procedure 1) Toner cartridge • Peel off the fixed tape attached to the cover-top. • Open the cover-top. •...
  • Page 56 • Ensure that the plastic tab on the right-hand side of the toner cartridge recess lines up with the groove on the toner cartridge. Seal Toner cartridge FX048-C2-008 Figure 2.5.1.3 Toner Cartridge Installation (3) • Press down on both ends to make sure the cartridge is fully seated. •...
  • Page 57 Toner cartrige Gray tab FX048-C2-010 Figure 2.5.1.5 Toner Cartridge Installation (5) • Clean the toner scattered in the vicinity of the toner cartridge using a cloth moistened with cold water. Do not use hot water. Heat makes the toner adhere to surfaces and will make the toner more difficult to remove.
  • Page 58 (3) Recording paper Note: About 100 sheets of the new paper can be set on the tray-paper. Loading the new paper. Sheets must not exceed 100 sheets of the new paper on the tray-paper. If excessive sheets are set, it will cause paper jams.
  • Page 59 (4) Tray-paper, Tray-document and Document-stacker (option) • Hang the tray-paper, the tray-document and the stacker-document (option) onto hanging position. Tray-paper Tray-document Cover-top Stacker-document FX048-C2-013 Figure 2.5.1.7 Document Stacker Installation Installation Procedure 2 - 11 OKIOFFICE 44 Service Manual, P/N 59276801 Rev.

  • Page 60: Ac Cord Connection

    AC Cord Connection The power supply is provided as follows. Nominal input voltage 120V AC (Voltage range 102 to 127V AC) Nominal input voltage 230V AC (Voltage range 198 to 250 V AC) Check whether the AC voltage of your input is within the above-mentioned voltage range Connect the female plug of the AC cord to the machine.

  • Page 61: Telephone And Line Connections

    Telephone and Line Connections (1) Procedure • Connect the lines. 1) For OKIOFFICE 44 PSTN or Exchange line Optional Handset Optional TAD or Handset FX048-C2-015 Packing for Shipment CAUTION: When packing the OKIOFFICE 44 for shipment, REMOVE THE IMAGE DRUM AND TONER FROM THE UNIT AND SHIP SEPARATELY! Failure to do this will result in damage to the machine.

  • Page 62: Initial Settings

    Initial Settings 2.9.1 General Procedure of Key Operation Figure 2.9.1 shows the general procedure of key operation. Installation Procedure 2 - 14 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 63: Key Operation Flowchart

    Key Operation Flowchart (STNDBY MODE) (Press the SELECT FUNCTION key.) COPY COPY SELECT FUNCTION (OT) Selection by One-touch key To technical program [Prg. Start date (0-9) and start time (0-9)] OT1: DELAYED TX OT2: BROADCAST/FEEDER TX [Enter 2-digit (0-64)] OT3: CONFIDENTIAL TX [Prg.
  • Page 64 01: MCF. (SIGNLE-LOC.) Powered on while holding the 02: MCF. (MULTI-LOC.) 03: ERR. REPORT (MCF.) SELECT FUNCTION key down. 04: IMAGE IN MCF. 05: SENDER ID Selection by YES/NO keys or digit (1 to 5) 06: MONITOR VOLUME 07: BUZZER VOLUME OT9: USER PROGRAM 08: CLOSED NETWORK 09: TX MODE DEFAULT...
  • Page 65 Powered on while holding the COPY key down. Selection by YES/NO keys or digit (1 to 4) TECHINICAL PROGRAMMING Selection by YES/NO keys or digit (1 to 8) 1: SELF DIAGNOSIS 1: LOCAL TEST 2: SENSOR CALIBRATION 3: LED TEST 4: TONE SEND TEST 5: MODEM SEND TEST 6: MODEM REC.

  • Page 66: Technical Functions

    2.9.2 Technical Functions This section explains setting items generally conducted by service personnel, not by users. Table 2.9.1 shows the initial setting items and their purposes. (The default setting is different by the individual countries.) Each item can be accessed by entering the corresponding service number on Technical Function. The detailed procedures of the initial setting items will be explained on the following pages.

  • Page 67: Service Personnel Initial Settings Table 2.9.1 (1/7)

    Service Personnel Initial Settings Table 2.9.1 (1/7) T.F. Item Specifications Default Service bit Switching serviceman/user operation. ON : Service personnel’s features are available. OFF : Service personnel’s features are not avail- able. To enable or disable the following functions: • Drum (Total) and toner counter clear •...

  • Page 68: Service Personnel Initial Settings Table 2.9.1 (2/7)

    Service Personnel Initial Settings Table 2.9.1 (2/7) T.F. Item Specifications Default No-toner memory reception Enables or disables the memory reception when the fax is in no toner condition. ON : The messages are printed when toner has been newly supplied or an operator per- forms the memory operation (OT10).

  • Page 69: Service Personnel Initial Settings Table 2.9.1 (3/7)

    Service Personnel Initial Settings Table 2.9.1 (3/7) T.F. Item Specifications Default MDY/DMY Switches LCD display and report print from month/ day/year to day/month/year or vice versa. MDY/DMY selectable. Long document SCAN Switches the function of transmitting long-size docu- ment (more than 380 mm). ON : Unlimited (1 hour) OFF :...

  • Page 70: Service Personnel Initial Settings Table 2.9.1 (4/7)

    Service Personnel Initial Settings Table 2.9.1 (4/7) T.F. Item Specifications Default 035 sec. T1 (RX), timeout value T1 (RX), timeout value (later) Registers the time duration (in seconds) for which the fax waits for the remote station’s answer. This timer starts after the DIS is transmitted, and checked this timer by the transmission timing signal.

  • Page 71: Service Personnel Initial Settings Table 2.9.1 (5/7)

    Service Personnel Initial Settings Table 2.9.1 (5/7) T.F. Item Specifications Default 10 dB Modem attenuator Adjusts the attenuation (dB) for the transmit signal power level. Adjusting value is 0 to 15 dB in one dB steps. Since the maximum send signal power level (dB) of the fax is at 0 dB, you can select 0 dB to -15 dB in one dB steps for the send signal power level.

  • Page 72: Service Personnel Initial Settings Table 2.9.1 (6/7)

    Service Personnel Initial Settings Table 2.9.1 (6/7) T.F. Item Specifications Default 10100 Setting of LED print head strobe signals (00000- Strobe for LED head 11111). Selection of strove width in LED head. "00000" is darkest and "11111" is lightest. Note 1: When the rank marking of the new replaced LED print head (new part) is same as that of the old used LED print head (old part), you do not always have to set the LED print...

  • Page 73: Service Personnel Initial Settings Table 2.9.1 (7/7)

    Service Personnel Initial Settings Table 2.9.1 (7/7) T.F. Item Specifications Default Head width Head width (later) TYPE 2 You should confirm the head width by the following table, and then select it by this setting. (Refer to 4.2.1) Head width is two types (TYPE1/TYPE2). Setting Head width Head label...

  • Page 74: Tel/Fax Automatic Switching

    TEL/FAX Automatic Switching NOTE: This function assumes that an optional handset is connected to the machine. This function is used for the purpose of TEL/FAX automatic switching as follows. If the machine detects a call with a CNG signal indicating an auto send facsimile call, it starts an automatic document receiving operation.

  • Page 75: Tel/Fax Mode Flow Chart

    TEL/FAX Mode Flow Chart Telephone call Calling Called (TEL/FAX mode) Indication of LCD or manual party party transmission Ringing 14:14 [T/F] CML ON 2.1 sec Detection TEL/FAX Period Automatic Ring Back Tone Switch Over Time (20/35 sec) LIFT HANDSET Load document NSF, CSI, DIS Press START AUTO REC.

  • Page 76: Tad Mode Flow Chart (Type 1)

    TAD Mode Flow Chart (Type 1) Even though the fax does not detect CNG signal, the fax will go to receiving mode. To enable the manual TX mode. Load document Press START button Manual transmission NOTE: If the Remote RX function is set to a value other than OFF, that code can be used to force FAX RX during TAD Mode Operation.

  • Page 77: Tad Mode Flow Chart (Type 2)

    TAD Mode Flow Chart (Type 2) If the fax does not detect CNG signal during working of TAD, the machine will go to standby mode. NOTE: If the Remote RX function is set to a value other than OFF, that code can be used to force FAX RX during TAD Mode Operation.

  • Page 78: Technical Functions Example

    Enter "01" [ X ] YES( ) NO( ) Setting (Toggle) X: OFF To 02: MONITOR CONT. *1: 01-30 for OKIOFFICE44 Reference: See Figure 2.9.1 on the next page for the general operation flow. Installation Procedure 2 - 30 OKIOFFICE 44...
  • Page 79 Technical functions Operations: The display shows: 14:14 [FAX] (Standby) Press SELECT FUNCTION key. FUNCTION SELECT FUCTION (OT) MEMORY AVAIL.=100% COPY Press COPY key twice. COPY TECH. PROGRAMMING YES( /1-4) NO( ) Press key. 1:LOCAL TEST YES( ) NO( /1-4) Press key.

  • Page 80: Technical Functions 01 To 11 (Table 2.9.2, 1/5)

    Technical Functions 01 to 11 (Table 2.9.2, 1/5) T.F. Name of Function The Display Shows Service bit 01:SERVICE BIT Setting (Toggle) [ X ] YES( ) NO( ) X: OFF Line monitor control 02:MONITOR CONT. Setting (Toggle) [ X ] YES( ) NO( ) X: OFF Country code 03:COUNTRY CODE...

  • Page 81: Technical Functions 12 To 16 (Table 2.9.2, 2/5)

    Technical Functions 12 to 16 (Table 2.9.2, 2/5) T.F. Name of Function The Display Shows Tone for echo 12:TONE FOR ECHO (echo protection) Setting (Toggle) [ X ] YES( ) NO( ) X: OFF MH only 13:MH ONLY Setting (Toggle) [ X ] YES( ) NO( ) X: OFF High-speed modem rate...

  • Page 82: Technical Functions 17 To 23 (Table 2.9.2, 3/5)

    Technical Functions 17 to 23 (Table 2.9.2, 3/5) T.F. Name of Function The Display Shows T2, timeout value 17:T2 T.O. VALUE [ X ] YES( ) NO( ) To 18: DIS BIT32 X: 000 - 255 T2 T.O. VALUE [000] ENTER 000-255 3-digit timer entered.

  • Page 83: Technical Functions 24 To 27 (Table 2.9.2, 4/5)

    Technical Functions 24 to 27 (Table 2.9.2, 4/5) T.F. Name of Function The Display Shows MF attenuator 24:MF ATT Setting [ X ] YES( ) NO( ) X:0 DB 1 DB 2 DB 15 DB •••• • • • • • Ring duration detection time 25:RING DURA.

  • Page 84: Technical Functions 28 To 31 (Table 2.9.2, 5/5)

    Technical Functions 28 to 31 (Table 2.9.2, 5/5) T.F. Name of Function The Display Shows Head Width 28:HEAD WIDTH ? Setting (Toggle) [ X ] YES( ) NO( ) X: TYPE1 TYPE2 Media type 29:MEDIA TYPE Setting [ X ] YES( ) NO( ) X: M Transfer roller latch current 30:TR LATCH CURRENT...

  • Page 85: User's Functions

    2.9.4 User’s Functions This section explains the items usually set up by general users. Table 2.9.3 shows the initial setting items and their purposes. Each F.P. can be accessed by entering the corresponding function number on Function Programming. The detailed procedure of the initial setting items will be explained on the following pages. Note: S-ON: Effective if the service bit has been set on.

  • Page 86: Feature Specifications Table 2.9.3 (1/3)

    User's Functions Feature Specifications Table 2.9.3 (1/3) Item Specifications Auto dial 1) One-touch dial 10 one-touch keys are provided. Maximum. 32 digits for each location number. In addition to an ordinary location number, another alternate location number can be registered in to each one-touch key. Purposes of this alternate location number: 1) Fax dial A fax number is registered as an alternate location number.

  • Page 87: Feature Specifications Table 2.9.3 (2/3)

    Feature Specifications Table 2.9.3 (2/3) Item Specifications Automatic redial PTT parameter setting disables or enables this feature, and speci- fies redial times and redial intervals. * See 2.9.12 for the service bit condition depending on PTT parameters. Last No. redial “REDIAL”...

  • Page 88: Feature Specifications Table 2.9.3 (3/3)

    Feature Specifications Table 2.9.3 (3/3) Item Specifications Broadcast A maximum of 56 remote locations can be specified by the (Memory transmission) following means: • One-touch keys (with of without a group list). • Two-digit auto dial codes. • 1 keypad dial number One delayed time of calling for this feature can be specified unless any other delayed calling feature has been specified.

  • Page 89: One-Touch Key Program Settings (Flowchart)

    CLEAR( ) NEXT( ) NEXT( ) LOCATION PROGRAMMING ENTER(SRCH,OT,A/D,#) Power on while holding FUNCTION key down 1:FUNC. PROGRAMMING 1-4 for OKIOFFICE44 YES( ) NO( 1-6) 1:PRINT MEMORY MSG. OT10 These operations can be used to bypass YES( ) NO( 1-3) error conditions, and directly enter either the user or service functions.

  • Page 90: One-Touch Key Program Settings

    One-Touch Key Program Settings [Table 2.9.4} (1/4) F+OT Item Specifications Delayed transmission (TX) This function enters a message transmission time(s) and location(s) for execution at a specified time. Broadcast/memory transmission To make a one-time selection of the memory transmission mode. Max.

  • Page 91: One-Touch Key Program Settings Table [2.9.4] (2/4)

    One-Touch Key Program Settings Table [2.9.4] (2/4) F+OT Item Specifications Counter display (clear) The operation for displaying and clearing the print counters in five ways are as follows: Drum counter User can clear, but cannot read counter number Toner counter TF + 01 (Sets to on Service bit) Drum (total) continue TF + 01 (Sets to on Service bit)

  • Page 92: One-Touch Key Program Settings [Table 2.9.4] (3/4)

    One-Touch Key Program Settings [Table 2.9.4] (3/4) F+OT Item Specifications User’s programs 1. Function program Function program 01: MCF (SINGLE-LOC.) 02: MCF (MULTI-LOC.) 03: ERR. REPORT (MCF.) 04: IMAGE IN MCF. 05: SENDER ID 06: MONITOR VOLUME 07: BUZZER VOLUME 08: CLOSED NETWORK 09: TX MODE DEFAULT 10: T/F TIMER PRG.

  • Page 93: One-Touch Key Program Settings [Table 2.9.4] (4/4)

    One-Touch Key Program Settings [Table 2.9.4] (4/4) F+OT Item Specifications (continued from previous page) 4. System data program (1) TSI/CSI Registration of TSI/CSI/CIG (numbers, + and space) in 20 digits. TSI:Transmitting Subscriber Identification CSI: Called Subscriber Identification CIG: Calling Subscriber Identification (2) SENDER ID Registration of sender ID (alphabetic, numeric and symbolic) in 32 digits.

  • Page 94: User Function Program Settings Table 2.9.4 (1/4)

    Function Program User Function Program Settings Table 2.9.4 (1/4) P.F. Item Specifications Default Message confirmation report Enables or disables the automatic message confirma- (Single location) tion report printing after a single location call. Printing the MCF report. OFF: Disables this function. Message confirmation report Enables or disables the automatic message confirma- (Multiple locations)

  • Page 95: User Function Program Settings Table 2.9.4 (2/4)

    User Function Program Settings Table 2.9.4 (2/4) P.F. Item Specifications Default Closed network The fax compares lower four digits of TSI/CSI re- ceived from remote station with fax numbers regis- tered locally for one-touch dial and two-digits autodial. If unmatched, the communication will be automati- cally disconnected.

  • Page 96: User Function Program Settings Table 2.9.4 (3/4)

    User Function Program Settings Table 2.9.4 (3/4) P.F. Item Specifications Default Not Used User language A choice of 2 languages for LCD and print message are available. ENG (English) and Spanish/French/Portuguese Incoming ring Instead of ringer circuit, software can control built-in speaker to ring sound.

  • Page 97: User Function Program Settings Table 2.9.4 (4/4)

    User Function Program Settings Table 2.9.4 (4/4) P.F. Item Specifications Default PC/FAX switch When the host side does not respond at the time of incoming call to PC, specifies whether to starts forc- ibly as fax reception or not. Enables OFF: Disables Note: When the Bi-Centro board is installed on the fax, PC/FAX switching mode appears in the LCD...

  • Page 98: User's Functions Example

    2.9.5 User's Functions Example Function Program Operations: The display shows: To begin, press SELECT FUNCTION key 1:FUNC. PROGRAMMING once and one-touch key No. 9 in the YES( ) NO( /1-4) standby mode. (when no message is in memory) Press key. FUNCTION NO.

  • Page 99: User's Functions Table 2.9.5 (1/2)

    User's Functions Table 2.9.5 (1/2) Tap No. Name of Function The Display Shows Message confirmation 01:MCF(SINGLE-LOC.) Setting (Toggle) report X: OFF ] YES( ) NO( ) (Single location) Message confirmation 02:MCF (MULTI-LOC.) Setting (Toggle) report (Multiple X: OFF ] YES( ) NO( ) locations) Error report 03:ERR.

  • Page 100: User's Functions Table 2.9.5 (2/2)

    User's Functions Table 2.9.5 (2/2) Tap No. Name of Function The Display Shows 1st cassette paper 13:1’ST PAPER SIZE Setting size ] YES( ) NO( ) X: A4 LGL 13 LGL 14 OTHER Not used User language 15:USER LANGUAGE Setting X: ENG.
  • Page 101 Note 1: RESOLUTION & ORIGINAL of TX mode default setting can be selected by using (while documents are loaded in the ADF). STD / NORMAL STD / DARK STD / LIGHT FINE / NORMAL EX. FINE / NORMAL FINE / LIGHT FINE / DARK EX.

  • Page 102: Ring Response Time

    Ring Response Time Before specifying the ring response time, set the service bit on following the operations shown in 2.9.3 (1). (Service Bit Setting). Operations: The display shows: To begin, press SELECT FUNCTION SELECT FUNCTION (OT) key once and one-touch key No. 9 in MEMORY AVAIL.=100% the standby mode (when no message is in memory).

  • Page 103: Dial Parameters (Service Bit "Off")

    Dial Parameters (Service Bit "OFF") To get the "DIAL PARAMETER" message on the display, perform the operation in Table 2.9.6., Dial parameters settings. 2:DIAL PARAMETER YES( ) NO( /1-4) REDIAL TRIES [2 TRY] YES( ) NO( ) REDIAL INTERVAL [1 MIN] YES( ) NO( ) DIAL TONE DETECT [ ON ] YES( ) NO( ) BUSY TONE DETECT...

  • Page 104: Clock Adjustment

    2.9.6 Clock Adjustment Operations: The display shows: To bring the LCD up to the desired message, SELECT FUNCTION (OT) press SELECT FUNCTION key once and MEMORY AVAIL.=100% one-touch key No. 9 in the standby mode. (In case of no message in memory) Press OT9 Enter 3 using the ten-key pad.

  • Page 105: Dual Access Operation

    2.9.7 Dual Access Operation This feature is not available with the OKIOFFICE 44. Installation Procedure 2 - 57 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 106: System Data Programming

    2.9.8 System Data Programming • TSI/CSI (Default: Blank) • Registration of sender ID (Default: Blank) • Registration of telephone number for the call-back message (Default: Blank) Operations: The display shows: To begin, press SELECT FUNCTION SELECT FUNCTION (OT) key once and one-touch key No. 9 in the MEMORY AVAIL.=100% standby mode.
  • Page 107 Operations: The display shows: Continued from the previous page. NO=03 3404 7123 ID=OKI (Example) START Press key. START NO=<CALL BACK NO.> 3 SEC LATER NO=_ 03..5 NO=03 3404 7765_ (Example) Press START key. START Installation Procedure 2 - 59 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 108: Dial Parameters Settings

    2.9.9 Dial Parameters Settings Procedure The following shows the case in which the service bit is on. Operations: The display shows: To begin, press SELECT FUNCTION key once and SELECT FUNCTION (OT) one-touch key No. 9 in the standby mode. MEMORY AVAIL.=100% (with no message in memory) Press OT9...

  • Page 109: Installation Procedure

    The display shows: Continued from the previous page. 2:DIAL PARAMETER YES( ) NO( /1-4) (1) Redial time REDIAL TRIES "0 TRY" to "10 TRY" [2 TRY] YES( ) NO( ) (2) Redial interval REDIAL INTERVAL "1 MIN" to "6 MIN" [1 MIN] YES( ) NO( ) (3) Dial tone detection DIAL TONE DETECT...

  • Page 110: Dial Parameters Settings (Table 2.9.6)

    Dial Parameters Settings (Table 2.9.6) Item Specifications Default Redial tries Switches on the redial times to meet the regulations of the installed country. 0 to 10 tries (in one-try steps) 1 to 5 tries for FRE. Redial interval Switches on the radial intervals to meet the regulations of installed country.

  • Page 111: Off-Line Tests

    2.9.10 Off-line Tests Purpose Activate self-diagnosis which includes: • Print test • CPU-ROM version printing • CPU-RAM check • PROG version printing • LANGUAGE version printing • DEFAULT version printing • RAM check • RAM check (memory board: optional) • PC-I/F version printing (optional) Procedure Operations: The display shows:...

  • Page 112: Self-Diagnosis Print Test (Example) Figure 2.9.4

    Self-Diagnosis Print Test (Example) Figure 2.9.4 CPU-ROM VERSION AA00 HASH DACD CPU-RAM PROG1 VERSION AA00 HASH 3142 PROG2 VERSION AA00 HASH 1234 LANGUAGE VERSION LL10 HASH 3F06 DEFAULT VERSION DD10 HASH A683 RAM1 OPT-RAM1 OPT-I/F PARALLEL DEFAULT TYPE 07/01/96 *1 marked item is shown for condition of all RAM except EXCEED RAM. *2 marked items are options.

  • Page 113: On-Line Tests

    2.9.11 On-line Tests Transmission Load documents Make sure that • The loaded documents are fed in automatically. • The STD and NORMAL lamps light. • The display shows SELECT LOCATION. Dial the telephone number of the remote machine by the ten-key pad. Make sure that the telephone number of the remote machine is shown on the display.

  • Page 114: Typical Transmission Flow (Fig. 2.9.5)

    Typical Transmission Flow (Fig. 2.9.5) 14:14[FAX] (STANDBY) (• LOAD DOCUMENT(S), SELECT RESOLUTION MODE) AUTO MANUAL SEND MODE DIALING ? OFF HOOK MANUAL DIALING WHICH MODE? ONE-TOUCH TWO-DIGIT AUTO DIAL CODE KEYPAD DIAL ONE-TOUCH KEY PRESS"AUTO DIAL" KEY ENTER DIGITS (e.g. No. 1) SEE THE CODE (e.g.

  • Page 115: Typical Reception Flow (Fig. 2.9.6)

    Typical Reception Flow (Fig. 2.9.6) 14:14[FAX] STANDBY) MANUAL RECEIVE MODE AUTO OFF-HOOK AND CONVERSATION RECEIVE MODE? PRESS START KEY RING DETECTED AUTO REC. START MANUAL RX START PERSONAL ID RECEIVED? OKI SHIBAURA RECEIVING/144 REMOTE TEL NO.(CSI) RECEIVING/96 03 3456 7890 RECEIVING/144 3 454 2111 DISTANT ID (polling RX)

  • Page 116: Installation Of Optional Units

    2.9.12 Installation of Optional Units Items • Memory board • PC interface board • Telephone handset Procedure Note: Unplug the AC power cord from the wall outlet first and then from the facsimile. • Detach the AC power cord to power OFF the unit. •...

  • Page 117: Memory Board Installation

    Memory Board Installation • In the OKIOFFICE 44, the MEM memory board is mounted on to the connector CN13 of R44 board. Installation Remove Cover-rear Remove the Cover-rear by removing the screw 1. Fixing hook Remove PC Interface (CTR PCB), Cover-Rear if installed.

  • Page 118: Ctr (Pc Interface) Board Installation

    CTR (PC interface) Board Installation Remove Cover-rear. Remove the Cover-rear by removing the screw 1. Fixing hook Cover-Rear Install CTR board. First, install CTR board on to the connector CN11, CN12 of R44 board, Screw 1 Fig. C.2.1 and then tighten the two screws to the separation plate.

  • Page 119: Optional Telephone Set Installation

    Optional Telephone Set Installation After having taken out the telephone set, telephone handset and curled cord from the carton box, connect them(Fig. C.3.2). Fig. C.3.2 After installing the connection cable to the telephone set, extend the connection cable (Fig. C.3.3). Fig.
  • Page 120 This page was intentionally left blank. Installation Procedure 2 - 72 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 121: Section 3: Brief Technical Description

    Section 3: Brief Technical Description Electrophotographic Process Flow Brief Technical Description 3 - 1 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 122: Fundamentals Of The Electro-Photographic Process

    Fundamentals of the Electro-Photographic Process The electro-photographic process involves six sub-processes: (1) Charging (2) Exposure (3) Development (4) Transfer (5) Fusing (6) Cleaning Each process is briefly explained below. Process Illustration Description The surface of the electrophotographic Image drum is uniformly charged with negative charges by applying a negative voltage to the charge roller.
  • Page 123 Process Illustration Description The recording paper is placed over the Image drum surface and a positive charge, EP drum opposite in polarity to the toner, is applied to the reverse side of the paper from the transfer roller. The toner is attracted by the positive charge and is transferred to the paper.
  • Page 124 This page was intentionally left blank. Brief Technical Description 3 - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 125: Actual Electrophotographic Process

    Actual Electrophotographic Process The electrophotographic process of the unit consists of six essential processes. The following Figure 3.2.1 provides a general description. 2 LED head Electro-photographic drum 1 Charge roller Toner 6 Cleaning roller 5 Heater roller 3 Developing roller Recording paper Back-up roller 4 Transfer roller...

  • Page 126: Boards And Units

    Boards and Units The following five boards, Main control board, Memory board (option), Telephone interface board (option), PC interface board (option) and three units constitute the OKIOFFICE44 facsimile transceiver machine. • Main control board MCNT: (R44) • Network control unit board...

  • Page 127: Block Diagram (Figure 3.3.1)

    Block Diagram (Figure 3.3.1) Brief Technical Description 3 - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 128: Overall Dimension And Mechanical Structure

    Overall Dimension and Mechanical Structure HVPS board NCU board MPSU board CTR board (option) CNT board Memory board (option) Separation rubber Scanner block Roller - ADF LED head EP drum OPE board Roller - Heater Paper exit ID unit Roller - Scan Document exit Image sensor Manual paper feeder inlet...

  • Page 129: Section 4: Disassembly

    Section 4: Disassembly This chapter explains the procedures for replacement of assemblies and units in the field. General 4.1.1 Precautions for Parts Replacement Before starting disassembly and reassembly, always pull out the AC plug. Note: Unplug the AC power cord from the wall outlet first and then from the facsimile. Do not try to disassemble as long as the facsimile is operating normally.

  • Page 130: Service Caution

    Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops voltages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord disconnected) before removing the Main Cover for service.

  • Page 131: Tools

    4.1.2 Tools Table 4.1.1 shows the tools required for the replacement of parts such as circuit boards and mechanical units. Table 4.1.1 Tools Q'ty Remarks Service tools Philips screw driver (L) Philips screw driver (M) Flat screw drivers (S) Philips screw driver (S) Radio pliers Nippers Multimeter...

  • Page 132: Disassembly Procedure Flow Figure 4.1 (1/2)

    Disassembly Procedure Flow Figure 4.1 (1/2) Start Item number for detailed description (4.1.3.1) (4.1.3.1) LED Print Head Open the Cover Assembly-Top (4.1.3.2) ID Unit (4.1.3.2) (4.1.3.2) (4.1.3.2) Cover-Rear Cover-NCU Cover-Main (4.1.3.2) (4.1.3.4) (4.1.3.4) Board-NCU Open the Frame Separation Rubber Assembly Scanner (U) (4.1.3.3) (4.1.3.3)

  • Page 133: Disassembly Procedure Flow Figure 4.1 (2/2)

    Disassembly Procedure Flow Figure 4.1 (2/2) (4.1.3.19) Printer Unit Start (4.1.3.9) Open the Cover ID Unit Assembly-Top (4.1.3.9) Transfer roller (4.1.3.2) (4.1.3.2) (4.1.3.2) Cover Rear Cover NCU Cover Main (4.1.3.10) (4.1.3.15) High-voltage Heat Power Supply Assembly (TLHV/OLHV) (4.1.3.10) Holder Assembly (4.1.3.18) (4.1.3.14) Paper Sensor E...

  • Page 134: Whole Unit Picture

    Whole Unit Picture (FX048 CP4.1 Fig.01) Disassembly 4 - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 135: Led Print Head

    4.1.3.1 LED Print Head Two LED print heads are available.. (208 mm (8.18 inch) width or 216 mm (8.5 inch) width) (1) Disassembly procedure Cover assembly-top a) Open the cover assembly-top by raising the cover in the direction of the arrow. b) Disconnect the PC connector from the LED print head.

  • Page 136: Image Drum And Covers (Rear, Ncu, Main) And Ncu Board

    4.1.3.2 Image Drum and Covers (Rear, NCU, Main) and NCU Board Service Caution: ID unit Cover assembly-top The High Voltage Power Supply PCB in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed.
  • Page 137 Cover-main e) Move the left and right paper guides to the center. Extend the unit two inches beyond the work bench, to allow for clearance. Lift (from the rear) the main cover. Board-NCU: Guide-paper (R) Remove the Board-NCU by removing the two screw Holder assembly 3 and disconnect the connector (CN3) from Board- Guide-paper (L)

  • Page 138: Unit-048 Ope-Panel

    Cable 2 4.1.3.3 Unit-048 OPE-Panel (1) Disassembly procedure OPE panel assembly a) First, carry out the disassembly procedure up to the point of the 4.1.3.2 (Item (e). Cover-main). b) Dismount the Printer-Unit. (See Section 4.1.3.19) c) Open the OPE-panel assembly. (CP4.1 Fig.

  • Page 139: Separation Rubber, Sensor Frame Roller Assembly (U)

    4.1.3.4 Separation Rubber, Sensor Frame Roller Assembly (U) (1) Disassembly procedure a) Separation rubber: Frame Assembly-Scanner (U) The separation rubber can be removed from the Frame Assembly-Scanner (U). (CP4.1 Fig. 15) b) Roller Assembly Sensor: Remove the Plate-Support by removing the two screws 1.

  • Page 140: Roller Assembly-Adf, Cis, Lever-Pc1 And Pc2

    4.1.3.5 Roller Assembly-ADF, CIS, Lever-PC1 and PC2 CIS = Contact Image Sensor (1) Disassembly procedure a) First, carry out the disassembly procedures up to the point of the 4.1.3.2 and 4.1.3.3. b) Dismount the Printer-Unit. (See Section 4.1.3.19) c) Remove the Frame assembly-Scanner (L) by removing the four screws 1 and the four connectors. Frame Assembly-Scanner (L) Screw 1 Screw 1...
  • Page 141 Plate Scanner (R) Plate Scanner B Plate Scanner (L) Plate Earth ADF Speaker (CP4.1 Fig. 18) Roller assembly-ADF d) Turn the Frame Assembly-Scanner inside out and perform the disassembly procedure. Roller Assy-ADF e) Remove the Plate Scanner (L) by removing the two screws.
  • Page 142 Motor-S: Remove the Motor-S by removing the connector of motor and the two screws 1. Connector Motor-S k) Photo-Sensor (PC1, PC2): Screw 1 After disconnecting the two connectors, remove (CP4.1 Fig. 19) the photo-coupler sensors PC1 and PC2 on the Plate Scanner B by pressing the latch using the flat screwdriver or like.
  • Page 143 Screw Unit (1) Disassembly procedure a) First, carry out the disassembly procedure up to the point of the 4.1.3.2 (Cover-Rear, Cover-Main etc.). Board-R44 b) Board-R44: Disconnect all connectors. c) Remove the five screws and remove the Board R44. (CP4.1 Fig. 22) d) OKIOFFICE 44 Power Supply Unit: Disconnect all connectors.

  • Page 144: Option (Board-Memory: Mem, Board-Ctr; Pc Interface)

    4.1.3.7 Option (Board-Memory: MEM, Board-CTR; PC Interface) (1) Disassembly procedure a) Remove the Cover-Rear by removing the screw 1 and the part of the fixing hooks. b) Remove the Plate-Earth (PC I/F) c) Board-Memory (MEM): Remove Board-Memory on the connector CN13 of the Board-R44, and removing the screw to the separation plate.

  • Page 145: Printer Unit Section

    4.1.3.8 Printer Unit Section [Base Frame Unit] LED head Flat cable assy Pressure roller (B) (Back up roller) Heat assy Paper guide (R) Transfer roller Papr guide (L) Resistration roller Hopper spring Idle gear heat Paper holder Holder Tension plate Slide plate M Stopper spring Hopping...

  • Page 146: Transfer Roller

    4.1.3.9 Transfer Roller (1) Disassembly procedure a) Open the cover assembly. Remove the ID unit. b) Remove the right claw. Registration bearing Then, dismount transfer roller, two registration bearing, and gear T. Transfer roller Gear T Registration bearing Label (CP4.1 Fig. 24) (2) Reassembly procedure Reverse the disassembly procedures.

  • Page 147: High-Voltage Power Supply Unit (Tlhv/Olhv)

    4.1.3.10 High-Voltage Power Supply Unit (TLHV/OLHV) Service Caution: (1) Disassembly procedure a) First, carry out procedure up to the point of the The High Voltage 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Power Supply PCB in Cover-MAIN). the OKIOFFICE 44 is mounted vertically on b) Remove the three screws 1 and draw out high- the left side of the unit,...

  • Page 148: Holder Assembly

    4.1.3.11 Holder Assembly (1) Disassembly procedure a) First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Cover-MAIN). b) Dismount the Bracket-Package. c) Dismount the Holder-Paper. d) Unlock and dismount the Guide-Paper (L) and Guide Paper (R).

  • Page 149: Plate-Side M And Gear-Idle

    4.1.3.12 Plate-Side M and Gear-Idle (1) Disassembly procedure Perform parts replacement while making the base frame assembly stand so that Plate-Side M will face upward. a) First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Cover-MAIN).

  • Page 150: Registration Roller

    4.1.3.13 Registration Roller Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover- NCU and Cover-MAIN). Move registration roller to the right and dismount it by lifting. (Two registration Registration roller bearings also come off at the same time. Take care not to lose them.) Registration bearing (CP4.1 Fig.

  • Page 151: Drive Shaft E (Eject) And Eject Roller

    4.1.3.14 Drive Shaft E (Eject) and Eject Roller Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover- NCU and Cover-MAIN). Remove two screws 1 from Cover Heat Assembly (section 4.3.7), lift the heat assay, and dismount idle gear E (A) and idle gear E (B).

  • Page 152: Heat Assembly

    4.1.3.15 Heat Assembly This section explains how to dismount the heat assembly and parts in the assembly. Screw 1 (1) Disassembly procedure Screw 1 Dismounting the heat assembly Heat assembly a) First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Cover-MAIN).

  • Page 153: Pressure Roller B (Back Up Roller)

    4.1.3.16 Pressure Roller B (Back Up Roller) Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover- NCU and Cover-MAIN). Dismount the high-voltage power supply Bearing BU board. (See Section 4.1.3.10) Dismount heat assembly. (See section 4.1.3.15) Pressure roller B Dismount the engagement with the left...

  • Page 154: Hopping Shaft Assembly

    4.1.3.17 Hopping Shaft Assembly Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Cover-MAIN). Dismount the high-voltage power supply board. (See Section 4.1.3.10) Dismount the paper holder assembly. (See Section 4.1.3.11) Dismount the sheet guide.

  • Page 155: Paper Sensor E, Paper Sensor Exit And Toner Sensor Assembly

    4.1.3.18 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assembly Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover- NCU and Cover-MAIN). Dismount the high-voltage power supply board. (See Section 4.1.3.10) Dismount the paper holder assembly.

  • Page 156: Printer Unit

    4.1.3.19 Printer Unit Disassembly procedure First, carry out procedure up to the point of the 4.1.3.2 (ID Unit, Cover-Rear, Cover-NCU and Cover-Main). Remove Bracket-Package with three screws, then disconnect Cable-Flat from connector on R44-Board (M-CNT). Dismount the high-voltage power supply board.

  • Page 157: Section 5: Adjustments

    Section 5: Adjustments Setting of LED Print Head Drive Time • Adjustment point: Technical Function No. 27. * To bring the LCD up to Technical Function, press SELECT FUNCTION key once, COPY key twice and "2" key (In case of no message in memory). Note: When the rank marking of the replaced LED print head (new part) is the same as that of the used LED print head (old part), you do not always have to set the LED print head drive time.

  • Page 158: Confirmation Items

    Confirmation Items The clock frequency and power voltage of the machine are not possible to adjust in the field. However, their measurement procedures are described here for confirmation of clock frequency and each voltage. Clock Frequency • Measurement point: R44 board; LC2-3 pin and ground terminal •...

  • Page 159: Service Caution

    Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops volt- ages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord disconnected) before removing the Main Cover for service.

  • Page 160: Measurement

    Measurement Remove the AC power cord. Carry out the disassembly procedure up to Cover assembly-top, Frame assembly-scanner, and Unit- printer. (Refer to the Mechanical Disassembly and Reassembly in Chapter 4-1.) Connect extension cables to the R44 board. Connect the frequency counter (for clock frequency), digital voltmeter (for power voltage) and Oscilloscope (for SIG signal).

  • Page 161: Service Caution

    Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops volt- ages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord disconnected) before removing the Main Cover for service.
  • Page 162 This page was intentionally left blank. Adjustments 5 - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 163: Section 6: Cleaning And Maintenance

    Section 6: Cleaning and Maintenance Consumables Replacement The user (or service personnel) is required to replace the following items as consumable parts. User Replaceable Items Life Expected Use Before Reference Item No. Part name Replacement in Fig.6.1.1 Toner Cartridge 1250 sheets/cartridge for OKIOFFICE 44 (ITU-T document sample No.1) (For the second or later cartridge to a new I/D Unit) * The first toner cartridge installed in a new I/D unit...
  • Page 164 This page was intentionally left blank. Cleaning and Maintenance 6 - 2 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 165: Others

    Others Reliability Table (6.1.1.) Item Specifications Document feeder Jam occurrence and misfeeds in the automatic document feeder will be less than one in 500 operations for all specified documents. Recording paper Jam occurrence in the automatic paper feeder will be less than one in feeder 1,500 operations and misfeeds will be less than one in 500 operations for all specified recording paper.

  • Page 166: Preventative Maintenance

    Preventative Maintenance The recommended preventative maintenance of the following items should be performed twice a year (once a year is the absolute minimum) after the machine is installed. Table 6.2.1 describes the preventative maintenance procedures.. Preventative Maintenance (Table 6.2.1) Maintenance Reference Item No.

  • Page 167: Preventative Maintenance Diagram (Figure 6.2.1)

    Preventative Maintenance Diagram (Figure 6.2.1) (4) Separation rubber (2) Roller - ADF (5) LED head Paper exit ID unit (1) Roller - Scan Document exit (3) Image sensor (6) Printer block Cleaning and Maintenance 6 - 5 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 168: Printer Counter Display/Clear (User)

    Printer Counter Display/Clear (User) Purpose A user can clear the image drum counter (only when "Change Drum Soon" message is displayed) and also check some of the other counters (such as the print counter, scan counter) by using the key or key.

  • Page 169: Printer Counter Display/Clear (Service)

    Printer Counter Display/Clear (Service) Purpose The service personnel can clear and check the following counters. • Image Drum • Toner • Image Drum (Total) • Print • Scan Note: DRUM (T) count is used to display the total in-use life of the machine. This counter cannot be cleared. Procedure The following example shows the menu flow when the service bit has been set ON.
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  • Page 171: Self-Diagnosis Test

    Self-Diagnosis Test Purpose To check ROMs, RAMs and printing function. Procedure Operations: The display shows: To begin, press SELECT FUNCTION key once TECH. PROGRAMMING and COPY key twice in the standby mode. (With no YES( /1-4) NO( ) message in the memory) 1:LOCAL TEST Press key.

  • Page 172: Self-Diagnosis Test Sample (Figure 6.5.1.)

    Self-Diagnosis Test Sample (Figure 6.5.1.) CPU-ROM VERSION AA00 HASH DACD CPU-RAM PROG1 VERSION AA00 PROG1 HASH 3142 PROG2 VERSION AA00 PROG2 HASH 1234 LANGUAGE VERSION LL10 HASH 3F06 DEFAULT VERSION DD10 HASH A683 RAM1 OPT-RAM1 OPT-I/F PARALLEL DEFAULT TYPE 07/01/96 *1 marked item is shown for condition of all RAM except EXCEED RAM.

  • Page 173: Explanation Of Self-Diagnosis Test Items

    Explanation of Self-Diagnosis Test Items Pattern 1 All white (32 lines) Pattern 2 Stair pattern (32 lines in each step) Pattern 3 All black (32 lines) Pattern 4 Alternate printing of black dots and white dots (32 lines x 2) Pattern 5 All white (32 lines) CPU-ROM VERSION...

  • Page 174: Sensor Calibration Test

    Sensor Calibration Test Purpose To adjust the linearity of the contact image sensor output levels. NOTE: After adjusting the levels, check the copy quality of the unit. Using the unit, make copies of test charts or known good documents. Operations: The display shows: To begin, press SELECT FUNCTION key TECH.
  • Page 175 Operations: The display shows: Continued from the previous page 1:SELF DIAGNOSIS Enter "2". YES( ) NO( /1-8) 2:SENSOR CALIBRATION YES( ) NO( /1-8) Press key. 2:SENSOR CALIBRATION PLEASE SET DOCUMENT Load document(s). Set white document. For adjustment of levels, use white plain bond paper(s) of NA Letter 2:SENSOR CALIBRAION size.

  • Page 176: Led Test

    LED Test Purpose To check the operation of the LEDs on the operator panel. Procedure Operations: The display shows: To begin, press SELECT FUNCTION once TECH. PROGRAMMING ? and COPY key twice in the standby mode. (with YES( /1-4) NO( ) no message in memory) 1:LOCAL TEST Press...

  • Page 177: Tone Send Test

    Tone Send Test Purpose To send the G3 tonal frequencies to the line. Procedure Operations: The display shows: To begin, press SELECT FUNCTION key once, 1:SELF DIAGNOSIS COPY key twice and key twice. (with no YES( ) NO( /1-8) message in memory) 4:TONE SEND TEST Enter "4".

  • Page 178: High-Speed Modem Send Test

    High-speed Modem Send Test NOTE: This procedure requires coordination with technical staff at the remote location. In addition, both locations must have a telephone handset connected to each machine. Purpose To check the telephone line quality in combination with a remote station programmed to the high- speed modem receive test mode.

  • Page 179: High-Speed Modem Send And Receive Test Diagram (Figure 6.9.1)

    High-speed Modem Send and Receive Test Diagram (Figure 6.9.1) TX Side RX Side 5:MODEM SEND TEST 6:MODEM REC TEST YES( ) NO( /1-8) YES( ) NO( /1-8) Press key. Press key. CML relay operates. CML relay operates. The display shows: 5:MODEM SEND TEST "...

  • Page 180: High-Speed Modem Receive Test

    6.10 High-speed Modem Receive Test NOTE: This procedure requires coordination with technical staff at the remote location. In addition, both locations must have a telephone handset connected to each machine. Purpose To check the telephone line quality in combination with a remote station programmed to the high-speed modem send test mode.

  • Page 181: Mf Send Test

    6.11 MF Send Test Purpose To send the multi-frequencies of tone dialling to the line. Procedure Operations: The display shows: To begin, press SELECT FUNCTION key once, 1:SELF DIAGNOSIS COPY key twice and key twice. (with no YES( ) NO( /1-8) message in memory) 7:MF(TONE) SEND TEST Enter 7.

  • Page 182: Tone (Tel/Fax)

    6.12 Tone (TEL/FAX) Purpose To check the pseudo-ring back tone of TEL/FAX automatic switching. Procedure Operations: The display shows: To begin, press SELECT FUNCTION key once, 1:SELF DIAGNOSIS COPY key twice and key twice. (with no YES( ) NO( /1-8) message in memory) Enter 8.

  • Page 183: Protocol Data Dump Printing

    6.13 Protocol Data Dump Printing NOTE: Technical Function 1 (Service Bit) must be set to ON to print the Protocol Data Dump. Purpose To analyze the transmitted/received G3 protocol signals. Procedure • Manual printout of the last communication. (a) Manual printout Operations: The display shows: 14:14 [FAX]...

  • Page 184: Sample Protocol Data Dump (Figure 6.13.1)

    Sample Protocol Data Dump (Figure 6.13.1) Sample is from the transmitter side. PROTOCOL DUMP 07/01/96 09:21 ID=OKI SHIBAURA DATE TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 09:16 00'46" OKI HONJO CALLING 0000 C2 C4 FD F4 04 02 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00...

  • Page 185: Data Analysis (Figure 6.13.2)

    Data Analysis (Figure 6.13.2) The printed out data permits to analyze G3 facsimile communication protocol signals between two facsimile machines. Figure 6.13.2 shows the result of an analysis on the printed data referring to Figure 6.13.1 (Protocol Data Dump). (Transmitter) (Receiver) Dialling Ringing signal...

  • Page 186: Facsimile Control Field Conversion Table

    Facsimile Control Field Conversion Table Table 6.14.1 shows all Facsimile Control Field (FCF) signals which are needed to analyze the printed out protocol dump data. Some signals have two different hexadecimal codes in accordance with the calling party or called party. Table 6.14.1 FCF Signals Conversion Table Abbreviation Hex.

  • Page 187: System Reset

    6.14 System Reset Purpose To clear or initialize the following data to factory default settings. (a) Location data One Touch Locations Auto Dial Locations Group Dial Programming (b) Configuration data (default) User Functions Technical Functions Procedure Operations: The display shows: To begin, press SELECT FUNCTION key, TECH.
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  • Page 189 6.15 Service Code The service code can be printed on Activity Report to recognize the result of each communication. The activity report indicates the code ”0000", should a communication terminates on normal status as a service code. The activity report indicates one of the codes of “90XX”, should a communication terminates on abnormal status, as an error code.

  • Page 190: Service Code List [Table 6.15.1]

    Service Code List [Table 6.15.1] (1/2) Code Description 0000 Successful end of communication. 1080 STOP key has been pressed while calling a remote fax. 10A2 Busy tone detected. 14C0 Dial tone not detected. 14C1 Line current not detected. 14C2 Calling-and-waiting for line connection time out. 14C3 Dialling limit time out.

  • Page 191: Service Code List [Table 6.15.1] (1/2)

    Service Code List [Table 6.15.1] (2/2) Code Description 39C1 DECODER hardware error. (cannot detect end of picture) 41A0 There was no response each time in response to the three post commands. 41A6 Received signal other than the desired signal in responce to the post command. 41A9 Fall back in Phase C is not possible.
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  • Page 193: Section 7: Troubleshooting

    Section 7: Troubleshooting Overview This chapter contains: Troubleshooting flow charts related to general operations Troubleshooting flow charts by test operations Troubleshooting flow charts placing an emphasis on mechanical portions Section Name of Flow Chart 7.1.1 Overall troubleshooting flow chart 7.1.2 No LCD operation 7.1.3 ALARM LED on...

  • Page 194: Service Caution

    Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops voltages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord disconnected) before removing the Main Cover for service.

  • Page 195: Overall Troubleshooting Flow Chart

    7.1.1 Overall Troubleshooting Flow Chart NOTE: R44 Board for OKIOFFICE 44 is designated as the MCNT Board in this flowchart. Start Go to 7.1.2 (No LCD operation). LCD works? ALARM LED lights? Go to 7.1.3 (ALARM LED on). Key operation activates the unit.

  • Page 196: No Lcd Operation

    7.1.2 No LCD Operation Start TIME on LCD? AC Power Cord plugged in? Properly connect the AC power cord. +5V SUB at Pin 1 of CN7 (R44)? Check SPSU, R44 boards and their connectors. +5V SUB at Pin 6 and 7 of CN1 (OPE UNIT)? Replace OPE (O4W).

  • Page 197: Alarm Led On

    7.1.3 ALARM LED On Start Checking Points: Communication error? "COVER OPEN" on LCD? Press STOP key. "PRINTER ALARM i" alarm? ALARM LED goes off? "PAPER JAM" alarm? "NO PAPER" alarm? Go to 7.1.22 (Printer unit). "TONER LOW" alarm? Return to section 7.1.1 1.

  • Page 198: Printing Test Failure

    7.1.4 Printing Test Failure Start Perform SELF DIAGNOSIS. Print test OK? Replace R44 Board Solved? Return to section 7.1.1 Go to 7.1.22 (printer unit) Troubleshooting 7 - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 199: No Local Copy

    7.1.5 No Local Copy Checking Points: Start Printing function of Go to 7.1.4 (Printing test failure). self-diagnosis is OK? Load a document. The document is fed by any length? 1. Check PC1. If defective, replace. 2. Replace R44 board. 3. Check the mechanical portion. Document feeds about 7cm (Scan motor, etc.) (2.75 inches) and stops with...
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  • Page 201: Auto Dial Failure

    7.1.6 Auto Dial Failure Start Manual dial OK? Can you hear dial tone when lifting up your handset? 1. Check the line cable. 2. Check the exchange. Check pulse dial/tone dial, dial rate, etc. Check closed network. Test other fax machines (Note 1) under the same conditions.

  • Page 202: Transmission Problem

    7.1.7 Transmission Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Document feeds, but no document is received at remote station. Start Step 1: Set MH ONLY (Technical function No.
  • Page 203 Test other fax machine under the same conditions, especially concerning Step 1-4. Do they transmit normally? Check the line and the network. The hardware of the troubled fax machine may be damaged. Go to 7.1.13 (High-speed Modem Test) to localize the cause. Note: Even if the high-speed modem test results in success, 300 bps signal route...
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  • Page 205: Auto Reception Failure

    7.1.8 Auto Reception Failure Start Manual reception OK? Your handset telephone Is unit placed in the auto rings when a call arrives? receive mode? If not, place 1. Check the handset of the fax machine in that mode telephone set. by pressing AUTO REC key.

  • Page 206: Reception Problem

    7.1.9 Reception Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station. Start Step 1: Set MH ONLY (Technical function No. 13) to ON. Solved? Step 2: Set HIGH-SPEED MODEM RATE (Technical function No.
  • Page 207 Test other fax machines under the same conditions, especially concerning step 1-4. Does the fax machine receive normally? Check the line and the network. The hardware of the troubled fax machine may be damaged. Go to 7.1.13 (High-speed Modem Test) to localize the cause.

  • Page 208: Sensor Calibration Test

    7.1.10 Sensor Calibration Test Start Checking Points: Perform SENSOR CALI- BRATION. (See 6.6) "SCANNING ERROR" appears on LCD while adjusting for level. Check that white plain bond paper of NA Letter size is loaded on the feeder. Abnormal feeding is observed during No document SCANNING CHECK?

  • Page 209: Led Test

    7.1.11 LED Test Start Checking Points: Perform LED TEST. (See 4.7) All LEDs light? No (No LED lights) Any LED does not light? Yes (One LED or some LEDs light.) 1. Check the OPE Unit connection cable. 2. Check the oscillator OSC (OPE). 3.
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  • Page 211: Tone Send Test

    7.1.12 Tone Send Test Start Note 1: The tonal frequency (2100 Hz) will be sequentially sent for 5 seconds on the line terminals L1 and L2. Perform TONE SEND TEST. (See 6.8.) Note 2: As an example, signal route uses the WN5 (NCU) board.

  • Page 212: High-Speed Modem Test

    7.1.13 High-speed Modem Test Start Connect oscilloscope probe across the line terminals L1 and L2 Perform H-MODEM SEND TEST for the transmitter and H-MODEM REC TEST for the receiver. (See Fig. 6.9.1) Which mode, TX or RX? Modem's signal appears across L1 and L2? TX End Modem's signal appears...
  • Page 213 RX (Receiver) The error counter of LCD stops counting up? RX End Receive signal appears across L1 and L2? Check the line. Receive signal appears across CN3-19, 20 (R) and CN3-7 (GND) of WN5 board? Replace R44 Board. Signal route: CN10-A6, B6 (R) IC12-3 IC8-60 (RXA1)

  • Page 214: Mf Send Test

    7.1.14 MF Send Test Start Connect oscilloscope probe across the line terminals L1 and L2. Perform MF SEND TEST. (See 6.11.) MF signal appears across L1 and L2? MF signal appears across CN10-A8, B8 (S) and CN10-A12, B12 (0V) of R44 Board? Replace R44 Board.

  • Page 215: Tone (Tel/Fax) Send Test

    7.1.15 Tone (TEL/FAX) Send Test Start Notes: Connect oscilloscope probe The pseudo-ring back tone is sent to the across the line terminals telephone line for TEL/FAX automatic L1 and L2. switching. Test Points for the MF signal are difficult to reach. Perform TONE (TEL/FAX) Use great care to prevent causing a short.

  • Page 216: No Acoustic Line Monitor

    7.1.16 No Acoustic Line Monitor There are two source routes of acoustic line monitor: General communication signal DP pulse signal Start MONITOR VOLUME (Function program No. 06) Set MONITOR VOLUME has been set to to LOW or HIGH. LOW or HIGH? Yes (OFF) MONITOR CONTROL (Technical function No.

  • Page 217: No Document Feeding

    7.1.18 No Document Feeding Note: This section places an emphasis on troubleshooting of mechanical portions. Therefore, it is recommended to replace the R44 Board first and then , if not solved, follow this flow chart. Checking Points: Start Load a document(s). Check PC1 and the scan motor.
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  • Page 219: Multiple Document Feeding

    7.1.19 Multiple Document Feeding Definition: Multiple document feeding. Multiple documents are not separated and they are fed at the same time during one feeding operation. Start The leading edges of Align them. the documents are aligned? The separation rubber Clean it. is dirty? After pushing the Check the ADF spring,...

  • Page 220: Document Skew

    7.1.20 Document Skew Start 1. Set the guides to meet the Are the document guides set to meet the document width. document width? 2. Load the documents Are the documents straightly loaded along straight along the guides. the guides? The documents have Load documents by meeting the same width? the same width.
  • Page 221 Is the separation rubber dirty? Clean it. Are pinch rollers pressed normally by the Set them properly. springs? (After pushing them with your fingers, do they return back to the original positions?) Clean them. Are the feed follers dirty? Is the scan roller Replace it.

  • Page 222: Document Jam

    7.1.21 Document Jam Start Load a document. 1. Check PC1. Is document fed by 2. Replace R44 Board. any length? 3. Check the mechanical portion. (Scan motor, etc.) See 6.17 for further details. Document feeds about 5.5 cm (2.16") and stops with 1.

  • Page 223: Printer Unit

    7.1.22 Printer Unit 7.1.22.1 Precautions Points to check before correcting image troubles (1) Is the printer being run in proper ambient conditions? (2) Have the supplies (toner) and the routine replacement part (EP unit) been replaced properly? (3) Is the recording paper normal? (4) Has the EP unit been loaded properly? Tips for correcting image troubles (1) Do not touch, or bring foreign matter into contact with the surface of the drum.

  • Page 224: Troubleshooting Flow Charts Of Printer Unit

    7.1.22.2 Troubleshooting Flow Charts of Printer Unit Overall Troubleshooting Flowchart Problems Problems indicated Troubleshoot Perform detailed by LCD message according to the LCD troubleshooting with message trouble list. one of troubleshooting See Table 6.22.1. from chart 1 to 7. Troubleshoot Perform trouble- Image Problems (Problems not indicated...

  • Page 225: 1: Top Cover Is Open

    1: Top Cover is Open Cover (Cover-Top) is open. ** COVER OPEN ** Close the cover. Solved? Is the cover open switch Correctly position the out of position? cover open switch. Return to section 7.1.1. See ACTION 2. Troubleshooting 7 - 33 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 226: 2: Replace Image Drum Message

    2: Replace Image Drum Message Warning message to replace ID unit because of its life. ** CHANGE DRUM ** Disconnect AC power cord. or open and close the Top cover Assembly. Reconnect AC power cord. Does the CHANGE See ACTION 3. DRUM message remain on display? Is the R44 Board...

  • Page 227: 3: Engine Controller Error

    3: Engine Controller Error Engine controller error (ROM/RAM error) ** PRINTER ALARM 2 ** Detach the AC power cord. Reattach the AC power cord. Does the PRINTER See ACTION 5. ALARM 2 message remain on display? Open and close the Top Cover Assembly. See ACTION 6.

  • Page 228: 4: Fuser Unit Thermal Error

    4: Fuser Unit Thermal Error Fuser unit thermal error ** PRINTER ALARM 4 ** Detach and reattach the AC power cord. Is the PRINTER ALARM 4 message See ACTION 7. displayed with a delay? About 60 seconds later See ACTION 6. Detach and reattach the AC power cord.

  • Page 229: 5: Paper Jams

    5: Paper Jams Recording paper feed jam, transport jam, ejection jam, recording size error PAPER OUT/JAM REPLACE PAPER Is the paper tray Load it properly. loaded properly? Is the paper of Replace with paper of the specified size? specified size. Does the same error Remove the jammed paper.

  • Page 230: 6: No Paper Tray Or No Paper

    6: No Paper Tray or No Paper No recording paper on the tray PAPER OUT/JAM REPLACE PAPER Has the paper Load it. tray been loaded? Is recording paper Load recording paper. out? See ACTION 14. Troubleshooting 7 - 38 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 231: Action Items (Printer Unit-Lcd Message) Table 7.1.22.2

    Action Items (Printer Unit-LCD Message) Table 7.1.22.2 ACTION ACTION Check R44 Board. Check connection between the PWU and the fuser assembly, heater, thermostat. Check PWU-HV Board cover open switch, Check PWU. cover open switch connection. Check R44 Board. Check Sensor-E, magnet-H, hopping roller, pulse motor, Return to Section 7.1.

  • Page 232: Sample Image Problems (Figure 7.1.22.1)

    7.1.22.3 Image Problems Table Reference Troubleshooting Abnormal Symptom Figure Flow Chart No. Images are light or blurred as a whole. Fig. The blank background is smeared. Fig. Blank paper is output. Fig. Black belts or black stripes in vertical direction. Fig.

  • Page 233: 7: Light Or Blurred Output

    Images are light or blurred as a whole. Is toner low? Supply toner. Use paper that meets Does the paper meet specifications. OKI DATA specifications? Are there fingerprints or smudges / dirt Replace the paper. on the paper? Is the lens surface of the Clean the lens.

  • Page 234: 8: Smeared Background On Output

    8: Smeared Background on Output The blank background is smeared. Has the Image Drum been Close and wait for about exposed to external light? 30 minutes. Is the heat roller of the Clean it. fuser unit dirty? Is the contact of the cleaning roller Adjust the contact of the of the EP unit in contact cleaning roller to contact...

  • Page 235: 9: Blank Output

    9: Blank Output Blank paper is output Is the LED head connected properly? Connect the LED print (Check connector CN14 on head properly. the R44 Board.) Set the image drum unit Is the image drum unit set properly. properly? Replace the LED head, Power Supply Unit or R44 Board.

  • Page 236: 10: Vertical Black Stripes On Output

    10: Vertical Black Stripes on Output Black belts or stripes in the vertical direction. Replace the EP Unit End. Solved? Replace the LED print head or Power Supply Unit. Troubleshooting 7 - 44 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 237: 11: Evenly Spaced Marks On Output

    11: Evenly Spaced Marks on Output Periodic abnormal printing Developing roller (inside drum unit) 1.44" (36.6 mm) failure. period? Replace or clean the image drum unit. EP drum (inside the image drum unit) 1.98" (50.3 mm) failure. period? Replace the image drum unit. Toner supply roller (inside drum unit) 2.63"...

  • Page 238: 12: Missing Print On Output

    12: Missing Print on Output Some parts not printed Is the print paper folded, Replace the paper. bent, or scratched? Is the transfer roller Clean it. dirty? Check I/D unit and Power Supply Unit. Troubleshooting 7 - 46 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 239: 13: Vertical White Stripes On Output

    13: Vertical White Stripes on Output White belts or streakes in the vertical direction Is the lens surface of the Clean the lens. LED print head dirty? Is the contact plate of the transfer Make proper contact of the roller in contact with the contact contact plate with the contact assembly properly? assembly.

  • Page 240: 14: Poor Fusing

    14: Poor Fusing Poor fusing Use paper of OKI DATA Is the paper OKI DATA specified grade. specified grade? Is the (Bias) Replace the pressure roller spring. spring normal? (Tension: 2.5 kg) Is there proper contact between Adjust for proper contact between...

  • Page 241: Section 8: Dipswitch Settings

    Section 8: Dipswitch Settings General Information The OKIOFFICE 44 does not have any dipswitches. Dipswitch Settings 8 - 1 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...
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  • Page 243: Appendix A: Board Descriptions

    Appendix A: Board Descriptions PREFACE This appendix provides basic information concerning the electric section for the component-level maintenance of the OKIOFFICE 44. It includes such information which will help maintenance personnel to understand the circuit operations. This appendix will also provide the reader information concerning the functions of units and the relation- ships among the units which will assist you in conducting unit-level maintenance.
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  • Page 245: A1.1 Unit Configuration And Block Diagram

    A1.1 Unit Configuration and Block Diagram The unit configuration of the OKIOFFICE 44 is as follows: Board-Memory Board-CTR (PC Interface) Screw 1 Figure A.1.1.1 Unit Configuration of OKIOFFICE 44 Main control board (R44) Network control unit (NCU) PC interface board (CTR): option Memory board (MEMO): option Power supply unit (048 POW, OLHV/TLHV) Operation panel board (04W)
  • Page 246 Board Descriptions A - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 247: Block Diagram Abbreviations

    Block Diagram Abbreviations : Analog-to-digital converter : Amplifier BATT : Battery : Connector number i : Central processing unit D-MOTOR : Drum motor : Motor drive DRAM : Dynamic random-access memory EXSEED : Image proccessing gate array : Fan motor FLASH : Flash memory IOGA 3...

  • Page 248: A1.2 Function Of Each Unit

    A1.2 Function of Each Unit The section describes the principal functions of the individual units of the OKIOFFICE44 electrical sections. Figure A1.2.1 shows the pertinent block diagram. Main Control (R44) Board • Basic processor Scanning control Picture processing control Printing control SIO (Serial input/output) control •...

  • Page 249: Ncu Board (Unc5)

    Output of send data and send signals to telephone line • Input of receive data and receive signals from telephone line Power Supply Unit 048-POW (120V/230V), TLHV/OLHV Board for OKIOFFICE44 • Conversion of main alternating current to the following direct currents: +5V DC power supply...

  • Page 250: A2.1 Signal Flow Explanation

    A2.1 Signal Flow Explanation Note : The OKIOFFICE 44 and OKIFAX 5000 series machines have very similar signal flows. The differences are: The one-line scanning processing speed of OKIFAX 5000 series is faster. The EXSEED (image processing LSI) and SRAM (dark/light level correction data) have been added to the OKIFAX 5000 circuits.
  • Page 251 Board Descriptions A - 9 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 252: G3 Send Mode

    G3 Send Mode Figure A2.1.2 shows the G3 send picture signal route In the G3 mode, the data transfer route from the scan unit up to the DRAM is the same as in the copy mode described in (1). The picture data for one-line is transferred from DRAM to CPU. The CPU performs the picture data processing (encode) for this picture data (FILLER, fill bits are inserted etc.) and again stores into the DRAM.
  • Page 253 Board Descriptions A - 11 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 254: G3 Receive Mode

    G3 Receive Mode Figure A2.1.3 shows the G3 receive picture signal route In the G3 mode, the high-speed picture signal arriving from the telephone line at L1 and L2 of NCU passes through the transformer T1 and the amplifier and is input to the MODEM as “R” signal. After demodulation by modem, the picture data is sent to CPU.
  • Page 255 Board Descriptions A - 13 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 256: Bps Send Mode

    300 bps Send Mode Figure A2.1.4 shows the 300bps send protocol signal route In G3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps. The protocol send data is read into DRAM in the sequence the contents of various data stored in the FLASH memory area in advance under the control of CPU.
  • Page 257 Board Descriptions A - 15 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 258: Bps Receive Mode

    300 bps Receive Mode Figure A2.1.5 shows 300bps receive protocol signal route. In G3 communication, this is the route of the procedural control signals (pre-message, post-message phases etc.) at 300bps. The 300bps modulated signals received via the telephone line L1 and L2 of the NCU are sent from pin R to Pin RXA1 of the modem.
  • Page 259 Board Descriptions A - 17 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 260: Report Printing

    Report Printing This signal route describes the printing route of character data used to print Activity Report, Message Confir- mation Report, etc. The report data is read into DRAM in the sequence the contents of data stored in the FLASH memory in advance under the control of CPU.
  • Page 261 Board Descriptions A - 19 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 262: Memory Transmission

    Memory Transmission This signal route describes the memory transmission used in broadcast mode, delayed broadcast mode, etc. The stored encoded data undergoes buffering, passes through CPU, MODEM and NCU and then sent out to the telephone line. Memory Reception This signal route describes the memory reception used in no-paper mode, no-toner reception, confidential mode, etc.
  • Page 263 A3.1 R44 Circuit Diagram A3.1.1 R44 Circuit Diagram) Block diagram The circuit diagram consists of the CPU, crystal oscillator circuit and reset signal generator. Figure A3.1.1 shows the block diagram of CPU and the peripheral circuits. Function Crystal oscillator circuit X1 is a 20 MHz crystal oscillator.
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  • Page 265 A3.1.2 R44 Circuit Diagram Block diagram The circuit diagram consists of an input/output gate array IC2 (IOGA3). Figure A3.1.2 shows the related signals of IOGA3. Functions IOGA3 is a newly developed LSI for scanning and printing control of the OKIOFFICE 44. IOGA3 contains the following functions: •...
  • Page 266 A3.1.3 R44 Circuit Diagram Block diagram The circuit diagram consists of Flash memory, Mask ROM, DRAM, Real time clock IC and Back up battery circuit. Figure A3.1.3 shows the block diagram of Flash memory, Mask ROM, DRAM and Real time clock.
  • Page 267 RAM2 A01 to A18 RAM1 DRAM AD00 to AD15 CASH-N/CASL-N/ 512 KB RASI-N Flash memory 512 KB RD-N/WRL-N MASK Mask ROM +24V RP/PP 512 KB F12VON circuit MDMRD-N/ MDWR-N Real time clock IC 32.768 KHz Back up battery RTCCS circuit Figure A3.1.3 Block Diagram of DRAM/Flash Memory/Mask ROM and Real-time Clock IC Board Descriptions A - 25...
  • Page 268 A3.1.4 R44 Circuit Diagram Block diagram The audio monitor circuit consists of IC11 (analog switch IC) and IC5 (amplifier) generates the following audio monitor. • Line monitoring • Buzzer signals Figure A3.1.4 shows the block diagram of audio monitor circuit. Function Line monitoring Send and receive signals are input from the transformer on the NCU board to this circuit as...
  • Page 269 A3.1.5 R44 Circuit Diagram Block diagram The circuit diagram consists of the following functions: • IC6 (A/D converter) • 30 V/24 V conversion circuit • Connector CN5 that provides an interface between R44 board and CIS (contact image sensor). Figure A3.1.5 shows the related signals and block diagram of CIS. Function One-line picture data is read in the sequence from the scanning unit (CIS) as SIG signal (analog data) to A/D converter (analog/digital converter) of IC6.
  • Page 270 A3.1.6 R44 Circuit Diagram Block diagram The circuit diagram consists of Modem (14.4 kbps). Modem consists the following functions: • Modulation/demodulation Modulation type: ITU-T Rec. V17 (14400/12000/9600/7200 bps) for G3 picture data. ITU-T Rec. V29 (9600/7200 bps) for G3 picture data. ITU-T Rec.
  • Page 271 A3.1.7 R44 Circuit Diagram Block diagram The circuit diagram consists of connector CN14 that provides an interface between R44 board and LED print head. Figure A3.1.7 shows the related signals and block diagram of LED print head. Function Data of 1664 LEDs on the LED print head is loaded into the shift registers by the HCLCK (1.0 MHz) signal.
  • Page 272 A3.1.8 R44 Circuit Diagram Block diagram The circuit diagram consists of the following connectors: • Connector CN10 that provides an interface between R44 board and NCU board. • Connector CN3 that provides an interface between R44 board and external electro-mechanical components (PC1 and PC2).
  • Page 273 CN10 A8, B8 Receiving A4, B4 Modem sensitivity control A6, B6 IOGA Relay driver circuit MUTE PBXE B1, B2 to OPE Hook-up signal detection circuit to OPE Ringing signal detection circuit Figure A3.1.8 Interface between R44 Board and NCU Board OPE (04W) KSCAN0 X'tal...
  • Page 274 to OPE PC1-N PC2-N PC1V (+5 V) to OPE PC1G (0 V) Note: PC1 (presence of document on hopper) PC2 (presence of document at scanning position) PC2V (+5 V) PC2G (0 V) Figure A3.1.10 Related Signals of PC1/PC2 Board Descriptions A - 32 OKIOFFICE 44 Serv.
  • Page 275 A3.1.9 R44 Circuit Diagram Block diagram The circuit diagram consists of the following functions and connectors: • IC9 (Drum motor driver) • TR4/TR2 (Clutch driver) • Connector CN15 that provides an interface between R44 board and the resist motor. • Connector CN2 that provides an interface between R44 board and the clutch.
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  • Page 277 A3.1.10 R44 Circuit Diagram Block diagram The circuit diagram consists of the following function and connectors: • TA1 (Send motor driver) • Connector CN1 that provides an interface between R44 board and the send motor. Figure A3.1.12 shows the related signals of the send motor and fan motor. Function Send motor rotation and chopper control Send motor drive signals are generated by the IOGA3 and output to send motor via TA1...
  • Page 278 A3.1.11 R44 Circuit Diagram Block diagram The circuit diagram consists of the following connectors: • Connector CN13 that provides an interface between R44 board and optional memory board. • Connector CN11 and CN12 that provides an interface between R44 board and optional CTR board.
  • Page 279 Transceiver CN12 20pin IOGA3 PD0-PD7 PD0-PD7 Busy nAck PError Busy Select Driver nFault nAck to PC PError nStrobe Select nInit nFault nSelectIn nAutoFd Receiver nStrobe BREQ nInit BACK nSelectIn nAutoFd nStrobe nSelectIn nAutoFd BREQ-I BREQ BREQ-O BACK BACK-I BACK-O RD/WRT/CASL/RMCS RD/WRT/CASL/RMCS AD0-AD7 AD0-AD7...
  • Page 280 A3.1.12 R44 Circuit Diagram Block diagram The circuit diagram consists of the following connector: • Connector CN6 that provides an interface between R44 board and power supply unit. Function Sensor and switch control Five types of sensors are used in the printer as listed below. All of their output enter IOGA ports for referring to and processing by the CPU.
  • Page 281 OLHV COVER open switch CVOPN-N CVOPN-N IOGA Write sensor WRSNS Outlet sensor PSOUT Inlet sensor PSIN Toner end sensor TNR5N5 Figure A3.1.15 Sensor and Switch Control Board Descriptions A - 39 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 282 Fuser unit temperature control The heater in the fuser unit is controlled by the thermistor, IOGA and CPU to keep the heater roller surface within a prescribed temperature range. The CPU supervises the status of PC0 (A/D converter input section) periodically, turning HEATON- N signal on and off according to CPU of PC0 status to exercise temperature control.
  • Page 283 High-voltage and medium-voltage control High voltages are activated by IOGA and generated by the high-voltage circuit inside the power supply unit. The CH (charge) voltage of about -1.35kV is used for the charge roller. The TR1/TR2 (transfer) voltage of about +3.5kV/-0.75kV is used for the transfer roller. Medium voltages are activated by IOGA and generated by the medium-voltage circuit inside the power supply unit.

  • Page 284: A3.3 Ope (04W) Circuit Diagram

    A3.3 OPE (04W) Circuit Diagram Block diagram Figure A3.3.1 shows a block diagram of OPE (04W). The 04W (operation unit) circuit consists of the following blocks: IC1 (one chip MOS-CPU) • Output ports Setting LEDs on and off: 8 ports Specifies the row during key switch matrix scanning: 8 ports •...
  • Page 285 OPE (04W) for OKIOFFICE 44 KSCAN0 X'tal KSCAN7 TXDOPE Key switch matrix RXDOPE OPECHK PC1-N MOS CPU KSENS0 from PC1 KSENS7 Internal ROM OPERST PSMODE LCD unit IOGA HUP-N RIINT Control signals from NCU MP/OFF to Main power supply (AC ON) Eight LEDs LEDs Figure A3.3.1 Block Diagram of OPE (operation unit)

  • Page 286: A3.5 Power Supply Unit For Okioffice 44

    A3.5.1 048 POW (120V/230V) Circuit Diagram IMPORTANT: Oki Data Corporation recommends that maintenance of the Power supply unit (048 POW board) be performed by replacing the entire power supply unit, not by replacement of components. Therefore, circuit descriptions in this section are for reference.
  • Page 287 Output ratings Rated Rated Current Voltage Output Output Pin No. Voltage Current Range Range Ripple Noise CN3-1 to 3 1.2A 0.2 to 3.9A 100 mVP-P 250 mVP-P CN3-8 +24V 1.0A 0 to 1.0A 24 to 38V 500 mVP-P — CN3-9 0.1A 0 to 0.1A -6.5 to -12V...
  • Page 288 Main power supply Regulator -8 V Rectifying ON/OFF circuit Noise filter AC IN circuit smoothing Switching circuit Regulator 24 V circuit, circuit RCC type Heater control Heater OUT circuit Standby power Control circuit supply circuit MPON Main power supply ON/OFF ACON Heater ON/OFF Regulator...

  • Page 289: Service Caution

    A3.5.2 OLHV/TLHV Circuit Diagram (2/2) This circuit consists of photo-sensors and high voltage generation unit. Note: If the high-voltage unit inside the OLHV/TLHV circuit board is replaced, the output voltage and current output from the terminals must be checked and adjusted. This section does not describe the checking and adjustment methods, however.
  • Page 290 High-voltage section 5-6-1 Functional overview The high-voltage outputs consist of TR1 (3.5 kV), TR2 (-0.75 kV), DB1 (+300 V), DB2 (-300 V), SB2 (- 450V), CB (+400 V) and CH (-1.35 kV) and are obtained as follows. The control signal obtained from IOGA of R44 board is applied to High-voltage power supply circuit.
  • Page 291 Photosensors The photosensors mounted on this circuit board/sensor board supervise the paper running state during printing. These four photosensors are used in this printer as listed below. All of their outputs enter IOGA for referring to and processing by the CPU. PS1 (photosensor 1): TNRSNS Detects the lack of the toner.
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  • Page 293: A3.7 Unc5 (Ncu) Circuit Diagram

    A3.7 UNC5 (NCU) Circuit Diagram Note: The relationship between NCU and optional boards (NTIF, TEL, HOOK, etc.) are shown in A3.11. Block diagram • Figure A3.7.1 shows a block diagram of UNC5 circuit. General functions of this circuit are as follows: Generates and detects signals to be exchanged with a telephone exchange or network in Phases A and E defined by ITU T.30.
  • Page 294 Description of the NCU Block Diagram UNC circuit diagram Lightning arresters (AR1, 2) The nominal operating voltage is 350 V. When connecting the ground of the arrestor to the chassis, tighten ARG on the PCB with a screw. At this time, the PCB is grounded through the power cable. The TB1 arrestor ground terminal can also be used to connect to the earth directly.
  • Page 295 CN2 (1/2) TEL1 TEL2 OFF HOOK Detector CN2 (2/2) Ring Detector C31 R5 Impedance LINE matching , AR arresters to Modem Receiving Sensitivity...

  • Page 296: A3.8 Telu Circuit Diagram (Option)

    A3.8 TELU Circuit Diagram (Option) The TEL U Board is used for control of the telephone set when the optional telephone assembly is installed on the facsimile transceiver, Block diagram • Figure A3.8.1 shows a block diagram of TELU circuit. General functions of this circuit are as follows: •...

  • Page 297: Block Diagram Of Tel-U (Option) Fig. A3.8.1

    Block Diagram of TEL-U (Option) Fig. A3.8.1 Board Descriptions A - 55 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 298: A3.10 Memo (Memory) Circuit Diagram (Option)

    A3.10 MEMO (Memory) Circuit Diagram (Option) By mounting this optional memory board (MEM/MEM-2), it can be used for the expansion memory. Block diagram Figure A3.10.1 shows a related signal of memory board. MEMO/MEMO-2 circuit consists of the following block. 512 kbyte pseudo static RAM x 4 (RAM1 to RAM4). Used as follows: •...

  • Page 299: Related Signals Of Memory Board (Option) (Figure A3.10.1)

    Image memory capacity Memory OKIOFFICE 44 Condition (pages) Standard (without option) With Option Board 1.0 Mbyte Note: No. of sheets are counted provided that ITU-T No.1 sample document is used. No. of sheets are typical value. Related Signals of Memory Board (Option) (Figure A3.10.1) MEM-2 (option) AD0 to AD7 AD0 to AD7...
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  • Page 301 A3.12 CTR (PC Interface Unit) Circuit Diagram CTR board is used as an interface board of PC and FAX when PC is connected to facsimile machine. Block diagram CTR board circuit is formed by Receiver, Driver, and 1284-I/F. Figure A3.12.1 shows related signals of CTR board. R44/17 CTR (option) BACKI...
  • Page 302 Function Summary By installing the optional board (Bi-Centro), the following MFP (Multi-Function Peripheral) function can be realized. Example: OKIOFFICE 44 • PC printer function (300/Q600 dpi) 4 PPM 8PPM (Target) • PC Scanner function 8 dot/mm 8 dot/mm (INT'L), 300 dpi (ODA) •...
  • Page 303 Following devices are as sub-system: Printer (HIPER-W: Host based Image PrintER for Windows) Encodes a rater image data in Host PC and transfers a data with HIPER-W emulation. Scanner (Oki-SCL 1: Oki-Scanner Control Language 1) Transfers and image data of document scanned in Fax machine to the Host PC with Oki-SCL 1 command.
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  • Page 305: Service Manual, P/N

    Appendix B: Print Operation Description B1.1 Electrophotographic Processor The electrophotographic processor prints out the image data to be sent from the main control board on sheets of paper. Figure B1-1 shows the layout drawing of the electrophotographic processor. (1) Image drum unit The image drum unit makes a toner adhere to the formed electrostatic latent image with static electricity.
  • Page 306 (3) Pulse motor (Main) This pulse motor of 48 steps/rotation is two-phase excited by the signal from the main control board; it performs feeding control by switching normal rotation to reverse rotation or vice versa and turning on/off the electromagnetic clutch. The relationship between the main motor, electromagnetic clutch, registration gear, drum gear, hopping roller is shown in the table below and on the subsequent pages.

  • Page 307: Paper Feeding Diagram (Figure B1.2)

    Paper Feeding Diagram (Figure B1.2) Print Operation Description B - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 308: B1.2 Electrophotographic Process

    B1.2 Electrophotographic Process (1) Electrophotographic process The electrophotographic process is outlined below. Charging The surface of the image drum is charged negatively and uniformly by applying the DC voltage to the charge roller. Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum. The surface potential of the irradiated surface attenuates to form the electrostatic latent image correspond- ing to the image signal.
  • Page 309 Control signal LED head Power supply Paper delivery Charge roller Exposure Power Power Charging supply supply Paper eject Paper feeding Cleaning Developing Toner Cleaning Development roller roller roller cartridge Outlet sensor Paper Paper Fusing Transfer supply holder Paper sensor Manual feed section Back-up Power...

  • Page 310: B1.2.1 Operations Process Explanations

    B1.2.1 Operations Process Explanations Hopping As shown in the figure below, the clutch for hopping is turned on/off according to current ON/OFF to a coil. Spring for resetting Hopping gear Clutch plate Coil Magnetic substance plate Hopping shaft Hopping roller Engagement section When the clutch is OFF When the clutch is ON...

  • Page 311: Printing And Warm-Up

    Printing and Warm-up At warm-up Triple gear Transfer gear Resist gear Idle gear Planetary gear a" Hopping gear Gear A Pulse motor (main) Rotate the pulse motor (main) in the a direction. The planetary gear rotates in the a’ direction, dislocating its position in the a”...

  • Page 312: Exposure

    Charging Charging is performed by applying DC voltage to the charge roller that is in contact with the surface of the image drum. High- voltage Charge roller power supply image drum Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum. The surface potential of the irradiated surface attenuates to form the electrostatic latent image corresponding to the image signal.

  • Page 313: Development

    Development The electrostatic latent image on the surface of the image drum is changed to a visible toner image by applying a toner to it. Development is performed in the contact part between the image drum and developing roller. Developing blade Charge roller Sponge roller Developing roller...

  • Page 314: Transfer

    Transfer The transfer roller is composed of conductive sponge material. This roller is set so that the surface of the image drum and sheets of paper will adhere closely. A sheet of paper is placed on the surface of the image drum and the positive charge opposite to the negative charge of a toner is applied from the reverse side by the transfer roller.

  • Page 315: Fusing

    Fusing The transferred unfused toner image is fused to a sheet of paper because heat and pressure are applied when it passes between the heat roller and backup roller. The Teflon-coated heat roller contains a 400 W heater (Halogen lamp) that heats the heat roller. The thermistor on the surface of the heat roller keeps the temperature of the heat roller constant.

  • Page 316: Paper Feed Check List

    B1.3 Paper Jam Detection The unit monitors the paper status when the power supply is on and during printing. In the following cases, the unit interrupts the printing process as a paper jam. Printing can be recovered by opening the cover, removing the jammed paper, and closing the cover.

  • Page 317: Timing Chart For Paper Feed (Tray Feed)

    Timing Chart for Paper Feed (Tray Feed) Normal rotation Pulse motor (main) Reverse rotation Electromagnetic clutch Manual feed sensor Paper sensor Outlet sensor Warm-up Paper feed Printing Operation mode Print Operation Description B - 13 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 318: B1.4 Toner Low Detection

    B1.4 Toner Low Detection • Hardware configuration of toner sensor The figure below shows the hardware configuration of the toner sensor. Image drum unit Agitation bar (iron) Magnet Toner sensor lever Photointerrupter Hardware Configuration of Toner Sensor • Toner detection method (1) Toner sensor monitoring conditions are shown in the figure below.
  • Page 319 (2) The basic rotation cycle of the toner sensor is as follows: T time Basic rotation cycle of toner sensor 4.9 sec. Toner low time t1 > 1.2 sec. Toner full time 1.2 sec. > t1 > Print Operation Description B - 15 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 320: B1.5 Cover Open

    B1.5 Cover Open Opening the stacker cover turns off the microswitch on the high-voltage power supply board to suspend +5 V supply to the high voltage power supply. This results in the stop of all high-voltage outputs. At the same time, the CVOPN signal is issued to notify the main control board of the switch status and cover open processing is executed.

  • Page 321: Appendix C: Circuit Diagrams

    Appendix C: Circuit Diagrams General Information The OKIOFFICE 44 Circuit Diagrams contain component level repair information and are OKIDATA proprietary. Circuit Diagrams C - 1 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 323 APPENDIX D: ILLUSTRATED PARTS LIST SECTION 1 SECTION 9 SECTION 3, 4 SECTION 8 SECTION 2, 11 SECTION 5, 6, 7 SECTION 10 OPTION TELEPHONE Illustrated Parts List D - 1 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 324 Section 1: Cabinet Assembly 1/2 Illustrated Parts List D - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 325: Appendix D: Illustrated Parts List

    Section 1 Table: Cabinet Assembly 1/2 Rev. Oki parts Number Description Q’ty OKIDATA P/N Unit-Printer (100V) Refer to Section 11 HOLDER-ASSY Refer to Section 11 4YA4116-1228G001 LED HEAD 56112101 RSPL 4YX4083-1134G001 CABLE FLAT ASSY. 56633401 RSPL Image Drum Unit 56116101 Consumable 4YB4049-1874P001 PWR Unit-ACDC Switch (120V) 4YB4049-1875P001...

  • Page 326: Section 1: Cabinet Assembly 2/2

    Section 1: Cabinet Assembly 2/2 Illustrated Parts List D - 4 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 327 Section 1 Table: Cabinet Assembly 2/2 Rev. Oki parts Number Description Q’ty OKIDATA P/N 40024001 Guide-Paper (U) 40024001 RSPL 4PP4083-6168P001 Spring: Head 50928701 RSPL 40024101 Guide-Paper (L) 40024101 RSPL 4PB4120-1136P001 Screw: Knob 50317601 RSPL B Tapping Screw B Tapping Screw FA B Screw B Screw Screw...

  • Page 328: Section 2: Printer Unit

    Section 2: Printer Unit Illustrated Parts List D - 6 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 329 Section 2 Table: Printer Unit Rev. Oki parts Number Description Q’ty OKIDATA P/N Printer Unit Assembly See Section 11 4YA4130-1004G1 PCB: High VOlt P/S 55080401 RSPL Screw F Illustrated Parts List D - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 330: Section 3: Operator Panel

    Section 3: Operator Panel Illustrated Parts List D - 8 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 331 Section 3 Table: Operator Panel Rev. Oki parts Number Description Q’ty OKIDATA P/N 40022701 OP Panel Assy. 40022701 RSPL 40023410 Sheet-F-048 40023410 RSPL 40023501 Sheet-O-048 40023501 RSPL 40023601 Sheet: Cover 40023601 Illustrated Parts List D - 9 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 332: Section 4: Operator Panel Assembly

    Section 4: Operator Panel Assembly Illustrated Parts List D - 10 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 333 Section 4 Table: Operator Panel Assembly Rev. Oki parts Number Description Q’ty OKIDATA P/N Case-OPE(T) 40086701 Board-04W 40086701 RSPL Holder-LCD Button-Function Ten Key (Round) 40023201 Button-Start 40023201 RSPL 40023301 Button-Stop 40023301 RSPL 4YB4134-1009P001 B SCREW A 4PB4120-1113P001 Rubber Connector Illustrated Parts List D - 11 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 334: Section 5: Frame Assembly Scanner (L)

    Section 5: Frame Assembly Scanner (L) Illustrated Parts List D - 12 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 335 Section 5 Table: Frame Assembly Scanner (L) Rev. Oki parts Number Description Q’ty OKIDATA P/N 40019301 Frame-Scanner (L) 40019401 Lever-PC1 40019401 RSPL 40019501 Lever-PC2 40019501 RSPL 40019601 Roller Assy.-ADF 40019601 RSPL 40020201 Plate-Earth ADF 40020201 RSPL 40020601 Piece-Exit 40020601 RSPL 40020701 Spring-Exit 40020701 RSPL...

  • Page 336: Section 6: Plate Assembly-Scanner (B)

    Section 6: Plate Assembly-Scanner (B) Illustrated Parts List D - 14 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 337 Section 6 Table: Plate Assembly-Scanner (B) Rev. Oki parts Number Description Q’ty OKIDATA P/N Plate-Scanner (B) 4YB4120-1137P001 Sensor: Photo 50410001 RSPL Illustrated Parts List D - 15 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 338: Section 7: Plate Assembly-Scanner (R)

    Section 7: Plate Assembly-Scanner (R) Illustrated Parts List D - 16 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 339 Section 7 Table: Plate Assembly-Scanner (R) Rev. Oki parts Number Description Q’ty OKDIATA P/N Plate-Scanner (R) 40084301 Motor-S (FX-048) 40084301 RSPL B SCREW FA Illustrated Parts List D - 17 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 340: Section 8: Frame Assembly-Scanner (U)

    Section 8: Frame Assembly-Scanner (U) Illustrated Parts List D - 18 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 341: Illustrated Parts List

    Section 8 Table: Frame Assembly-Scanner (U) Rev. Oki parts Number Description Q’ty OKIDATA P/N Frame-Scanner (U) 4PP3527-5153P001 BACK-UP PLATE ADF 53339801 RSPL 40267001 SEPARATION RUBBER ASSEMBLY 53344901 RSPL 40021301 Plate: Support 40021401 Spring-Pinch (L) 40021401 RSPL 40021501 Spring-Pinch (R) 40021501 RSPL 40021701 Guide-Sensor (B) 40021701 RSPL...

  • Page 342: Section 9: Cover Assembly-Top

    Section 9: Cover Assembly-Top Illustrated Parts List D - 20 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 343 Section 9 Table: Cover Assembly-Top Rev. Oki parts Number Description Q’ty OKIDATA P/N 40022101 Cover Assy: Top 40022101 Includes all items shown Cover-Top 40022301 Holder-LED 40022301 RSPL Guide-Document (L) Guide-Document (R) 4PP4128-1268P001 PLATE EXIT 4PP4083-2024P001 EJECT ROLLER A 4PP4083-2328P003 PINION GEAR B B SCREW FA 40093201 Spring-Support...

  • Page 344: Section 10: Plate Assembly-Base

    Section 10: Plate Assembly-Base Illustrated Parts List D - 22 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 345 Section 10 Table: Plate Assembly-Base Rev. Oki parts Number Description Q’ty OKIDATA P/N 40023701 Plate Assy: Base 40023701 RSPL Plate-Base RUBBER A 40026001 Sheet-Insulation 40026001 RSPL 40128001 Cord: Flat 40128001 RSPL Sheet-FG Illustrated Parts List D - 23 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 346: Section 11: Printer Base Frame Unit (1 Of 2)

    Section 11: Printer Base Frame Unit (1 of 2) 24 Note: 24 is a small part on item Illustrated Parts List D - 24 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 347 Section 11 Table: Printer Base Frame Unit (1 of 2) Rev. Oki parts Number Description Q’ty OKIDATA P/N 2PA4083-1132G1 Frame: Base Assy. 50221701 RSPL 3PP4083-1191P1 Sensor: Paper E 50410601 RSPL 4PB4083-1245P1 Pad: Friction 51711701 RSPL 3PP4083-1244P1 Guide: Separator 51021701 RSPL 4PP4083-1246P1 Spring: Compression S 50931001 RSPL...

  • Page 348: Section 11: Printer Base Frame Unit (2 Of 2)

    Section 11: Printer Base Frame Unit (2 of 2) 24 Note: 24 is a small part on item Illustrated Parts List D - 26 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 349 Section 11 Table: Printer Base Frame Unit (2 of 2) Rev. Oki parts Number Description Q’ty OKIDATA P/N 3PB4083-1140P1 Roller: Registration 53348301 RSPL 3PP4083-1151P1 Gear: T 51237601 RSPL 3YB4083-1150P2 Roller: Transfer 53348401 RSPL 4PP4083-1136P1 Spring: Bias (L) (Back UP Roller) 50931701 RSPL 3PP4083-1161P1 Bearing: BU (Back Up Roller)

  • Page 350: Section 12: Cables

    Section 12: Cables Illustrated Parts List D - 28 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 351 Section 12 Table: Cables Rev. Oki parts Number Description Q’ty OKIDATA P/N 40048101 Connection Cord-Wire (AC) 40048101 RSPL 40040001 Connection Cord-Wire (OPE) 40040001 RSPL 40040201 Connection Cord-Wire (CIS) 40040201 RSPL 40040301 Connection Cord-Wire (PC1/2) 40040301 RSPL 105A1070C0003 TFC-20-10-10 Core 105A1070C0004 TFC-23-11-14 Core 105A1073C4002 SSC-40-12-M Core...

  • Page 352: Section 13: Miscellaneous Items

    Section 13: Miscellaneous Items Whole Unit OKIOFFICE 44 120 V (English) P/N 62209101 OKIOFFICE 44 120 V (English / Spanish) P/N 62209103 OKIOFFICE 44 120 V (English / Portuguese) P/N 62209106 OKIOFFICE 44 120 V (English / French) P/N 62209104 OKIOFFICE 44 220 V (English / Spanish) P/N 62209102 OKIOFFICE 44 220 V (Enlgish / Portuguese) P/N 62209105...

  • Page 353: User's Manuals

    User’s Manuals Quick Start Guide (English Only) P/N 59275501 Handbook: Hardware P/N 59275301 Guide: Software P/N 59275401 Manual: OCR P/N 59278201 Service (Technical) Manuals Kit: OKIOFFICE 44 Service Training P/N 58220401 Includes the items listed below: Sheet: ID P/N 58323201 Sheet: Read Me First P/N 58323301 Manual: Certification...
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  • Page 355: Appendix E: Board Layout

    Appendix E: Board Layout TLHV PCB Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops voltages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord discon- nected) before removing the Main Cover for service.

  • Page 356: Mem Pcb

    MEM PCB MEM.eps Board Layout E - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 357: Tel-U Pcb

    TEL-U PCB TEL-U.eps Board Layout E - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 358: Hook Pcb

    Hook PCB Hook.eps Board Layout E - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 359: Appendix F: Second Paper Feeder

    Appendix F: Second Paper Feeder General Information The OKIOFFICE 44 does not have a second paper feeder. Second Paper Feeder F - 1 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 361: Appendix G: Rmcs System

    Appendix G: RMCS System Introduction RMCS stands for the Remote Management Center System. RMCS refers to setting registration data and conducting the following types of maintenance operations from a remote location. (Refer to Figure 1) The purpose of this system is to speed up customer service and reduce maintenance costs. RMCS model for FX050 series is only Model 20.

  • Page 362: Notes To Users

    Notes to Users Identifying the Packaged Contents Before using this system, the packaged contents with the package list. Contact your dealer if any component from the package. Required Devices The following devices and software are required to operate this system. Personal computer IBM PC/AT or compatible model Internal memory...

  • Page 363: Setup

    Setup Mounting This system (RMCS Model 20) is used FX050 series Facsimile with PC-I/F. Conceptual connection diagram of RMCS Model 20 with other devices Conceptual connection diagram of RMCS with other devices Remote Fax FX050 series facsimile with PC-I/F PSTN LINE RS232C PC-I/F board...

  • Page 364: Installation

    Installation When the PC/AT is activated by using the hard disk, insert an RMCS system disk into drive A. When C>_ is displayed, enter commands as shown below to activate the installation program. C> A:[Enter] A> INST[Enter] Remote Management Center System <<...

  • Page 365: Registering The Rmcs Basic System

    2.2.1 Registering the RMCS Basic System The flow of new registration is different from that of updating. First, the flow of new registration is described below. Remote Management Center System << RMCS SETTING >> HARD DISK DRIVE = [C] Press the Esc key to cancel. 1) Enter the drive No.
  • Page 366 2) Enter the directory name with up to eight alphanumeric characters. Remote Management Center System << RMCS SETTING >> HARD DISK DRIVE = [C] DIRECTORY = [C:\RMCS PASSWORD = [_ Press the Esc key to cancel. 3) Register a password of up to 15 alphanumeric characters excluding [\],[“]. If the system operator is not defined, password registration not required.
  • Page 367 Remote Management Center System << RMCS SETTING >> HARD DISK DRIVE = [C] DIRECTORY = [C:\RMCS_ PASSWORD DIPSW (ON:0 OFF:1) = [11000000] Are you sure (Y or N)? Press the Esc key to cancel. 5) When the setting is correct, enter [Y]. The system is now registered. If not correct, enter [N]. Then repeat from step 1) again.

  • Page 368: Registering The Facsimile Model No

    2.2.2 Registering the Facsimile Model No. 1) Search the directory in which the system is registered. When the system is found, register the model number. Remote Management Center System << FAX SETTING >> FAX Disk set Push any key Press the Esc key to cancel. 2) Insert a disk corresponding to the model into drive A, then press any key.

  • Page 369: Deleting The Facsimile Model No

    2.2.3 Deleting the Facsimile Model No. 1) Search the directory in which the system is registered. When the system is found, a list of registered models is displayed. Remote Management Center System << FAX DELETE >> [0]: OOOOOOOOOO [1]: [2]: [3]: [4]: [Page Up]: Previous page...

  • Page 370: Updating The Password

    2.2.4 Updating the Password 1) Search the directory in which the system is registered. When the system is found, the old password is displayed on the screen requesting entry of a new password is displayed. Remote Management Center System << PASSWORD UPDATE >> OLD PASSWORD = [1234567890 NEW PASSWORD...

  • Page 371: Updating The Dip Switches

    2.2.5 Updating the Dip Switches This setting is available for only RMCS Model 10. 1) Search the directory in which the system is registered. When the system is found, the dip switch setting is displayed. Remote Management Center System << DIP SW UPDATE >> DIP SW (ON:0 OFF:1) = [11010000] (For RMCS Model 10 only.) Press the Esc key to cancel.

  • Page 372: Deleting The Rmcs Basic System

    2.2.6 Deleting the RMCS Basic System 1) When to delete, enter [Y], then whole RMCS system is deleted. When not to delete, enter [N]. Then the installation menu appears. Remote Management Center System << RMCS DELETE >> DIRECTORY : [C:\RMCS] Are you sure (Y or N)? N Press the Esc key to cancel.

  • Page 373: Rmcs Basic Operation

    Enter the following command in the PC-DOS command input state. C>RMCS Remote Management Center System Copyright (C)1995 Oki Data Co., Ltd. Copyright (C)1995 Micro Technology Co. After completing the necessary preparations, the ID and password entry screen is displayed. 3.1.2 Entering the ID and Password...

  • Page 374: Tel Directory

    TEL Directory You can select such services (items) registration and deletion of information related to users. We describe the detail of each service later. There are two ways to specify an item: select by using the [ ] and [ ] keys, then press [Enter] or enter the number before the item.

  • Page 375: Main Menu

    Main Menu The main menu screen varies according to FAX models. For further operation, refer to each FAX model manual. User ID F1 : TEL directory FAX model [ F2 : Set the TEL number TEL number [ << MAIN MENU >> 1: Initialization of FAX 2: File [LOAD] (Center to FAX) 3: File [SAVE] (Center from FAX)

  • Page 376: Message Modifying Tool

    Message Modifying Tool Activating the Program After activating the PC/AT with a hard disk, insert the RMCS system disk into drive A. When C>_ is displayed, enter the following commands to activate the program. C>A:[Enter] A> SCRNED [Enter] Then the screen for menu selection is displayed. <...

  • Page 377: Saving Message

    4.2.1 File Selection < REMOTE MANAGEMENT CENTER SYSTEM > << MESSAGE MODIFYING TOOL>> <<MESSAGE MODIFY>> SCRN1000.TX SCRN2000.TX SCRN3000.TX SCRN4000.TX SCRN5000.TX SCRN1010.TX SCRN2010.TX SCRN3010.TX SCRN4010.TX SCRN5010.TX SCRN1020.TX SCRN2020.TX SCRN3020.TX SCRN4020.TX SCRN5020.TX SCRN1030.TX SCRN2030.TX SCRN3030.TX SCRN4030.TX SCRN5030.TX SCRN1040.TX SCRN2040.TX SCRN3040.TX SCRN4040.TX SCRN5040.TX SCRN1050.TX SCRN2050.TX SCRN3050.TX...

  • Page 378: Confirmation

    4.3.1 Confirmation < REMOTE MANAGEMENT CENTER SYSTEM > << MESSAGE MODIFYING TOOL>> << MESSAGE SAVE >> SOURCE : RMCS SYSTEM DESTINATION : A(FD) PLEASE INSERT A FORMATED DISK, THEN PRESS THE ENTER KEY TO SAVE. (PRESS THE ESC KEY TO CANCEL) Select a drive with the [Space] key.

  • Page 379: Confirmation

    4.4.1 Confirmation < REMOTE MANAGEMENT CENTER SYSTEM > << MESSAGE MODIFYING TOOL>> << MESSAGE LOAD >> SOURCE : A(FD) DESTINATION : RMCS SYSTEM PLEASE INSERT A SAVED DISK, THEN PRESS THE ENTER KEY TO LOAD. (PRESS THE ESC KEY TO CANCEL) Select a drive with the [Space] key.
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  • Page 381: Appendix H: Product Service Bulletins

    Appendix H: Product Service Bulletins General Information OKIDATA's Product Service Bulletins contain technical information obtained after product release. Firmware updates, part number changes, and procedural changes are some of the subjects covered by these bulletins. The Product Service Bulletins are distributed via OKIDATA's Web Site, Faxable Facts, and OKILINK II. Use this section to store any hardcopy Product Service Bulletin information you may obtain from these sources.
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  • Page 383: Service Caution

    Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit, with the land side fully exposed. This board develops voltages of up to 1300 VDC as part of the normal printing process. OKIDATA recommends that the unit be powered OFF (AC supply cord disconnected) before removing the Main Cover for service.
  • Page 384 This page was intentionally left blank. Product Service Bulletins H - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 385: Appendix I: Recommended Spare Parts List (Rspl)

    Appendix I: Recommended Spare Parts List (RSPL) General Information Recommended Spare Parts Lists (RSPLs) contain the current part numbers, descriptions, pricing, and stocking information for OKIDATA product spare parts. The Recommended Spare Parts Lists are distributed via OKIDATA's Web site, Faxable Facts, and OKILINK II.
  • Page 386 This page was intentionally left blank. Recommended Spare Parts List I - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 387 OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...

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