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OKIDATA OKIOFFICE 44 Service Manual

Okioffice 44
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Summary of Contents for OKIDATA OKIOFFICE 44

  • Page 1 Thank You for purchasing this Factory Service Manual on EBAY from PCTECHINFO! Click Here for more Factory Service Manuals for other Computer and Printer / Copier Manufacturers from PCTECHINFO!

  • Page 2: Service Manual

    OKIOFFICE 44 Service Manual 59276801 All specifications are subject to change without notice.
  • Page 3 OKILINK Login Name Technical Training Copyright Listing OKIDATA is a registered trademark of Oki Electric Industry Company, Ltd.; marques deposee de Oki Electric Industry Company, Ltd.; marca registrada, Oki Electric Industry Company, Ltd. Faxable Facts is a trademark, All Rights Reserved, 1993 IBM, PC, PC-DOS, and Proprinter XL are registered trademarks of International Business Machines Corporation.

  • Page 4: Table Of Contents

    General Setup Information ....................2 - 1 Site Selection ........................2 - 3 Unpacking ..........................2 - 4 2.3.1 Unpacking for OKIOFFICE 44 ................2 - 4 Check of Contents ....................... 2 - 6 Installation of Attachments ....................2 - 7 AC Cord Connection ......................
  • Page 5 Procedure ....................... 2 - 68 Memory Board Installation ..................2 - 69 CTR (PC interface) Board Installation ..............2 - 70 Optional Telephone Set Installation............... 2 - 71 Table of Contents TOC - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 6 4.1.3.4 Separation Rubber, Sensor Frame Roller Assembly (U) ......4 - 11 4.1.3.5 Roller Assembly-ADF, CIS, Lever-PC1 and PC2 ........4 - 12 4.1.3.6 Board-R44, OKIOFFICE 44 Power Supply Unit ........4 - 14 4.1.3.7 Option (Board-Memory: MEM, Board-CTR; PC Interface) ....4 - 16 4.1.3.8 Printer Unit Section ................
  • Page 7 7.1.8 Auto Reception Failure ..................7 - 13 7.1.9 Reception Problem ....................7 - 14 7.1.10 Sensor Calibration Test ..................7 - 16 7.1.11 LED Test ........................ 7 - 17 Table of Contents TOC - 4 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 8 13: Vertical White Stripes on Output ............. 7 - 47 14: Poor Fusing ..................7 - 48 Section 8: Dipswitch Settings ..............8 - 1 General Information ......................8 - 1 Table of Contents TOC - 5 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 9 Memory Reception ......................A - 20 A3.3 OPE (04W) Circuit Diagram .................... A - 42 A3.5 Power Supply Unit for OKIOFFICE 44 ................A - 44 A3.5.1 048 POW (120V/230V) Circuit Diagram ............. A - 44 Block Diagram of 048 POW (Figure A3.5.1) ..............A - 46 Service Caution ....................
  • Page 10 Consumables ........................D - 30 Options ..........................D - 30 Packaging ......................... D - 30 User’s Manuals ......................... D - 31 Service (Technical) Manuals .................... D - 31 Table of Contents TOC - 7 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 11 Saving Message ....................G - 17 4.3.1 Confirmation ..................G - 18 Loading Message ....................G - 18 4.4.1 Confirmation ..................G - 19 Other Message File ....................G - 19 Table of Contents TOC - 8 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 12 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 13 This page was intentionally left blank. Table of Contents TOC - 10 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 14: Section 1: General Information

    • 15 sheets (North American Letter/A4-size: 13 to 28-1b bond) (8) Recording paper or sheet • First tray: North American Letter/Legal/A4-size plain paper cut OKIOFFICE 44 100 sheets capacity (20-1b bond*) • Manual loading feeder: Transparency for overhead projector, applicable.
  • Page 15 10 ms at 3.85 line/mm 5 ms at 7.7 line/mm (17) Print speed • Max. 4 sheets per minute (18) Pre-heating time • Approx. 30 sec. (Standby to print) General Information 1 - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 16 • Nominal input voltage 120 VAC (28) MFP (Multi- Function Peripheral) function • The optional board (CTR board) provides the MFP functions PC Printer Function PC Scanner Function PC FaxModem Function Location Programing Function General Information 1 - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 17: General User's Function

    • 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) (7) Local copy including multiple copies •...
  • Page 18 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)
  • Page 19 • 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) • Message confirmation report (Single address or multiple addresses) •...

  • Page 20: General Maintenance Functions

    (6) High-speed modem send test (7) High-speed modem receive test (8) Tone (TEL/FAX) test (9) Remote diagnosis (10) System reset (11) Service default report (Machine setting for service engineer) General Information 1 - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 21: General Appearance

    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...

  • Page 22: Basic Performance Specifications

    Single Page Feeding 0.06 to 0.15 mm (.002 to .006 inches) 4) Shape Rectangular 5) Opacity Documents allowing less than 40% of the scanner source light to pass through them. General Information 1 - 9 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 23 Note: When a jam is detected during message transmission from the feeder, the machine will stop scanning and disconnect the line, but its receiving capability will remain valid. Document jam removal Manual release General Information 1 - 10 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 24 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)
  • Page 25 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 0.25 6.35 General Information 1 - 12 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 26 Printed copies will exhibit a uniform density of the printed and background area: 1) From edge to edge: 25% unit 2) From copy to the next copy: 30% unit General Information 1 - 13 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 27 ITU-T Rec. V.27 ter (4800/2400 bps) c) ITU-T Rec. V.17 (14400/12000/9600/7200 bps) d) ITU-T Rec. V.33 (14400/12000 bps) 2) Low-speed MODEM ITU-T Rec. V.21 channel 2 (300 bps) General Information 1 - 14 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 28 2) Frequency range 20 to 68 Hz 3) Ring response time One-ringing signal or 5 to 30 seconds. (Selectable in 5 sec. steps. F + OT9 + ← + 11) General Information 1 - 15 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 29 The following four modes are supported: 1) PC local printer function 2) PC scanner function Note: This function is standard 3) PC FaxModem function for OKIOFFICE44. 4) Location Programing function General Information 1 - 16 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 30 (Typical power) OKIOFFICE44 Transmit Receive 115W Local copy 150W Standby ** Power save mode is automatic for the OKIOFFICE 44. It cannot be enabled or disabled by the user. General Information 1 - 17 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 31 : Range where printing is guaranteed. Area enclosed by lines with : Range for storage without power supply. (Note) The curve connecting 28°C, 85% and 0°C, 64% is the condensation curve. General Information 1 - 18 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 32 8) One touch sheet x 1 (Already installed) 9) User’s guide x 1 10) JetSuite Software User Guide x 1 11) Quick Start Guide x 1 12) WordScan OCR Manual x 1 General Information 1 - 19 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 33: Reports And Lists

    The fax can print out a broadcast confirmation report manually or automatically. * COPY key (Manual printout): Pressed after a broadcast. * REPORT PRINTOUT + 2 (Manual printout) * FP +02 (To enable or disable automatic printing) General Information 1 - 20 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 34 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 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 35 (6) Sender's call back telephone number Sender ID Format: (Example) OKI ABC 1234 → 3454 2000 07/01/96 15:06 NO.021 Date and Time Sender ID Receiver's CSI/Personal ID Session number Page number (F050-C1-003) General Information 1 - 22 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 36 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 37 This page was intentionally left blank. General Information 1 - 24 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 38: Power Outage Report

    CALLED 0000 05/17 15:40 034567092222 FWD-T 05/18 10:50 01'20" 0495-22-5400 CALLED 0000 05/18 15:00 B.C. Note: Memory reception only is printed on the mode in the report as called. General Information 1 - 25 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 39: Activity Report

    0000 *1 : Confidential reception *2 : Manual TX *3 : Memory reception *4 : Broadcast TX *5 : Manual reception *6 : Reception for forwarding *7 : Forwarding General Information 1 - 26 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 40 Note 2: The following cases are included: • The STOP key is pressed. • The memory cancellation operation removes the message from the active memory files. (12) Service code General Information 1 - 27 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 41 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 42 (7) Communication mode Reference to ACTIVITY REPORT (8) Number of transmitted pages or received pages (9) Result of the communication Reference to ACTIVITY REPORT (10) Service code (11) Message General Information 1 - 29 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 43: Broadcast Entry Report

    98 = 98 99 = 99 MAX. KEYPAD OT AD KEYPAD 1234 *1 FX-480 : 10 45 2345 *2 FX-050VP : 15 64 3456 *3 FX-175VP : 30 99 4567 General Information 1 - 30 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 44: Broadcast Confirmation Report

    1234 3456 5678 (F030-C1-010) Confidential Reception Report Format: (Example) CONFIDENTIAL RX REPORT 07/01/96 17:05 ID=OKI DATE TIME S,R-TIME DISTANT STATION ID MODE PAGES RESULT 07/01 00:20 00'00" BOX=01 0000 General Information 1 - 31 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 45 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 46 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 47: General Information

    IT2 DETECT ON *3 *1 Function 14 is printed when 2'nd Tray is installed. *2 Function No.22 is printed when CTR board is installed. *3 In case of country code=FRE General Information 1 - 34 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 48 27: LED HEAD STROBE 10100 28:LED HEAD WIDTH 29:MEDIA TYPE 30: TR LATCH CURRENT TYPE1 MEDIUM 31:SYMBOL RATE 3200 Note: No. 30 is only for FX-048. No. 31 is only for FX-175VP. General Information 1 - 35 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 49 This page was intentionally left blank. General Information 1 - 36 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 50: Section 2: Installation

    Technical functions example (See 2.9.4) User's functions (See 2.9.5) User's functions example • Function Program • Ring response time • Dial parameter (service bit off) Clock adjustment (See 2.9.6) Installation Procedure 2 - 1 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 51 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 • Memory PC Board * : See user's guide Installation Procedure 2 - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 52: Site Selection

    • A place near a heat source or exposed to vibration • A dusty place • A place in the atmosphere of acid gas, or steam etc., • A place exposed to quick temperature changes Installation Procedure 2 - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 53: 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.
  • Page 54 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 55: 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 56: Installation Of Attachments

    • Take out the toner cartridge from the damp proof bag, shake it five or six times as shown in the illustration to eliminate the toner deflection, and peel off the seal gently. Mold cover Figure 2.5.1.2 Toner Cartridge Installation (2) FX048-C2-007 Installation Procedure 2 - 7 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...
  • Page 57 • Press down on both ends to make sure the cartridge is fully seated. • Push the gray tab forward until it stops. Toner cartrige FX048-C2-009 Figure 2.5.1.4 Toner Cartridge Installation (4) Installation Procedure 2 - 8 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 58 Do not use hot water. Heat makes the toner adhere to surfaces and will make the toner more difficult to remove. • Close the cover assembly-top until the buttons have been locked completely. Installation Procedure 2 - 9 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...
  • Page 59 Sheets must not exceed 100 sheets of the new paper on the tray-paper. If excessive sheets are set, it will cause paper jams. Tray-paper New paper (face down): 100 sheets FX048-C2-012 Figure 2.5.7 Recording Paper Cassette Installation (2) Installation Procedure 2 - 10 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...
  • Page 60 (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. 2...

  • Page 61: Ac Cord Connection

    Check that the display shows “(Time)” message indicating the standby mode. 1) For OKIOFFICE 44 AC Inlet FX048-C2-014 Note: The OKIOFFICE 44 is NOT equipped with a AC power switch. Installation Procedure 2 - 12 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 62: Telephone And Line Connections

    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. Installation Procedure...

  • Page 63: 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 64: Key Operation Flowchart

    → key Selection by OT, A/D, # or SEARCH OT8: LOCATION PROGRAM OT: ONE TOUCH KEY PRG. A/D: AUTO DIAL KEY PRG. To OT9 or OT10 #: GROUP SETTING Installation Procedure 2 - 15 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 65 FLASH/EARTH /NORMAL [Flash/Earth/Normal} AUTO START [OFF/ON] DIAL PREFIX [OFF/Digit(s)] 3: CLOCK ADJUSTMENT 4: SYSTEM DATA PRG. TSI/CSI SENDER ID CALL BACK NO. SUBST. MSG-PRINT OT10: PRINT OPERATION PRINTER CLEANING Installation Procedure 2 - 16 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 66 3: SYSTEM RESET 1: ALL DATA CLEAR 2: LOCATION DATA CLEAR 3: CONFIG. DATA CLEAR 4: DEFAULT TYPE SET * * Should be set to "1" for proper operation Installation Procedure 2 - 17 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 67: Technical Functions

    Note 1: S-ON: Effective if the service bit has been set to ON. Function program setting Technical function setting Note 2: The fonts displayed on the LCD operation panel may differ from fonts written this manual. Installation Procedure 2 - 18 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 68: Service Personnel Initial Settings Table 2.9.1 (1/7)

    (Set at re- ceiver.) When TF04 is set to “ALL”, TSI is printed for the all received pages. ON : Enable OFF : Disable (Reference) TSI; Transmitting Subscriber Identification Installation Procedure 2 - 19 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 69: Service Personnel Initial Settings Table 2.9.1 (2/7)

    OFF-HOOK or HOOK key is pressed. TEL/FAX switching Enables or disables the TEl/FAX automatic switch- ing. ON : Enable OFF : Disable (Related item: FP10, TF23) Installation Procedure 2 - 20 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 70: Service Personnel Initial Settings Table 2.9.1 (3/7)

    This timer starts when the last dialled digit has been sent in the automatic transmission mode. * Selects the 3 digit timer 010 to 255 sec selectable (in one second steps). Installation Procedure 2 - 21 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 71: Service Personnel Initial Settings Table 2.9.1 (4/7)

    NL equalizer Selects equalization for the following cable lengths: 0 Km 0 km/1.8 km/3.6 km/ 7.2 km selectable. Note: Relative to 1700 Hz for length of 0.4 mm diameter cable. Installation Procedure 2 - 22 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 72: Service Personnel Initial Settings Table 2.9.1 (5/7)

    CML timing justing time is 100 MS to 1900 MS in 100 MS steps. 0 to 19 selectable. For example: (300 ms) 03 x 100 ms = 300 ms Installation Procedure 2 - 23 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 73: Service Personnel Initial Settings Table 2.9.1 (6/7)

    PCB or LED Head. Setting of Technical Function No. 27 Setting Rank Marking 291–313 269–290 248–268 229–247 212–228 196–211 181–195 168–180 155–167 143–154 132–142 122–131 113–121 105–112 100–104 Installation Procedure 2 - 24 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 74: Service Personnel Initial Settings Table 2.9.1 (7/7)

    Selects the latch current for the transfer roller This setting can cause minor changes in the transfer roller current to com- ( -1, 0, +1, +2) pensate for different paper weights. Not Used Installation Procedure 2 - 25 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 75: Tel/Fax Automatic Switching

    Note 2: The predetermined time is selectable between 20 or 35 sec. Note 3 : Choice of message sending level. The level is selectable from 0 to 15 dB in one dB step. (Technical function No. 23) Installation Procedure 2 - 26 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 76: Tel/Fax Mode Flow Chart

    FAX communication if the CNG is detected during the period. *4: If the fax does not detect CNG signal during working of TEL/FAX mode, LCD display indicates “LIFT HANDSET”. Installation Procedure 2 - 27 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 77: Tad Mode Flow Chart (Type 1)

    2.1S Message from answer machine Detection To record your message in Period TELEPHONE BUSY answering machine Answering Machine Switches to NSF, CSI, DIS AUTO REC. START CML "OFF" FX050VP-C2-019 Installation Procedure 2 - 28 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 78: Tad Mode Flow Chart (Type 2)

    Ringing CML ON 2.1S Message from answer machine Detection To record your message in Period TELEPHONE BUSY answering machine Answering Machine Switches to CML "OFF" 14:14 [TAD] FX050VP-C2-020 Installation Procedure 2 - 29 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 79: Technical Functions Example

    [ 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 Service Manual, P/N 59276801...
  • Page 80 If you want to set up all or several items See Table 2.9.2 starting with 01, then enter 01. Installation Procedure 2 - 31 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 81: Technical Functions 01 To 11 (Table 2.9.2, 1/5)

    Setting (Toggle) [ X ] YES(←) NO(→) → ← X: MDY Long document transmission → 11:LONG DOC. SCAN Setting (Toggle) [ X ] YES(←) NO(→) → ← X: OFF Installation Procedure 2 - 32 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 82: Technical Functions 12 To 16 (Table 2.9.2, 2/5)

    [ X ] YES(←) NO(→) To 17: T2 T.O. VALUE → X: 010 - 255 sec T1(RX)T.O. VALUE [035] ENTER 010-255 3-digit timer entered. → 16:T1(RX)T.O. VALUE [059] YES(←) NO(→) (Example) Installation Procedure 2 - 33 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 83: Technical Functions 17 To 23 (Table 2.9.2, 3/5)

    (for TEL/FAX switch) [ X ] YES(←) NO(→) → → X:0 DB 1 DB 0 DB → • • • • • → → → 2 DB 15 DB •••• Installation Procedure 2 - 34 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 84: Technical Functions 24 To 27 (Table 2.9.2, 4/5)

    Head strobe 27:HEAD STROBE X ] YES(←) NO(→) To 28: HEAD WIDTH → X:5digits (0/1) 27: HEAD STROBE [01100] ENTER 0/1 0/1 entered. → 26:CML TIMING *100MS [01101]YES(←) NO(→) (Example) Installation Procedure 2 - 35 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 85: Technical Functions 28 To 31 (Table 2.9.2, 5/5)

    [ X ] YES(←) NO(→) → → X: M Transfer roller latch current → 30:TR LATCH CURRENT Setting [ X ] YES(←) NO(→) → → X:–1 → Not used Installation Procedure 2 - 36 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 86: User's Functions

    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. Function program setting Technical function setting Installation Procedure 2 - 37 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 87: Feature Specifications Table 2.9.3 (1/3)

    If he or she does not lift the handset within predetermined time (20 sec. or 35 sec.), the fax automatically starts a document receive operation. * FP + 10 (To determine the timer.) Note: Refer to TEL/FAX Mode Flow Chart Installation Procedure 2 - 38 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 88: Feature Specifications Table 2.9.3 (2/3)

    In addition to fax numbers, an alpha/ numeric name can be (Alpha search) assigned to each of one-touch keys and two-digit dial codes, 01 to 45 for OKIOFFICE 44. This name is called a location ID. Any location ID can be searched and displayed on LCD.

  • Page 89: Feature Specifications Table 2.9.3 (3/3)

    One delayed broadcast and one immediate calling of broadcast is possible with the OKIOFFICE 44. When multiple locations are specified for one broadcast (1) The OKIOFFICE 44 prints a broadcast entry report, if speci- fied in operating sequence. (2) The OKIOFFICE 44 can print a broadcast confirmation report.

  • Page 90: One-Touch Key Program Settings (Flowchart)

    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. Installation Procedure 2 - 41 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 91: One-Touch Key Program Settings

    (Serviceman report if service bit sets to ON.) Protocol dump report TF + 01 (Sets to on Service bit) Log. report TF + 01 (Sets to on Service bit) Installation Procedure 2 - 42 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 92: One-Touch Key Program Settings Table [2.9.4] (2/4)

    Grouping some one-touch keys and some two-digit auto dial codes to which telephone numbers have been assigned. This group setting makes broadcast operation simple. Five dialling groups are available for the OKIOFFICE 44 Installation Procedure 2 - 43 OKIOFFICE 44...

  • Page 93: One-Touch Key Program Settings [Table 2.9.4] (3/4)

    12. AUTO START 13. DIAL PREFIX 14. Not Used Refer to Table 2.9.6 for specification of dial parameter settings. 3. Clock adjustment Date and time adjustment. (continued on next page) Installation Procedure 2 - 44 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 94: One-Touch Key Program Settings [Table 2.9.4] (4/4)

    When memory reception data exists in the memory and the MEMORY RX MODE is indicated by AUTO REC key operation for OKIOFFICE 44 machine will print out the memory reception data. Not Used Printer cleaning When print quality becomes questionable, this drum cleaning function removes the residual toner on the image drum.

  • Page 95: User Function Program Settings Table 2.9.4 (1/4)

    Settings: High. Note: Fixed a low level for key touch tone. Installation Procedure 2 - 46 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 96: User Function Program Settings Table 2.9.4 (2/4)

    Selects A4, LETTER or LEGAL 13˜, LEGAL 14˜/ LETTER OTHER (when installing Bi-Centro board) by this function. The operator must select the preferable paper size as the machine cannot detect the paper size automati- cally. Installation Procedure 2 - 47 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 97: User Function Program Settings Table 2.9.4 (3/4)

    Enables or disables ECM (error correction mode) com- munication. Enables OFF: Disables Remote diagnosis Enables or disables the remote diagnosis function when the machine can allow remote diagnosis from remote center. Enables OFF: Disables Installation Procedure 2 - 48 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 98: User Function Program Settings Table 2.9.4 (4/4)

    Note: When the Bi-Centro board is installed on the fax, PC/FAX switching mode appears in the LCD display. One-touch key parameters To assign the following features to each one-touch key. 1) Echo protection (ON/OFF) Installation Procedure 2 - 49 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 99: User's Functions Example

    If you want to set up all or several items starting with 01, then enter 01. To an individual setting item. (See Table 2.9.5) Installation Procedure 2 - 50 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 100: User's Functions Table 2.9.5 (1/2)

    Setting ← → ] YES( ) NO( X: 1RING 05SEC 10SEC 15SEC 20SEC → NOTE 2: Distinct ring 12:DISTINCTIVE RING Setting (Toggle) ← → ] YES( ) NO( X:OFF Installation Procedure 2 - 51 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 101: User's Functions Table 2.9.5 (2/2)

    One-touch key 23:ONE TOUCH PARAM. To: FUNCTION NO. parameters → YES(OT) One-touch key pressed. → ECHO PROTECTION Setting (Toggle) → ← ← → X: OFF ] YES( ) NO( ← Installation Procedure 2 - 52 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 102 When the CTR board is not mounted, the PC/FAX switch is bypassed as follows: (bypass) 22:PC/FAX SWITCH ← → ] YES( ) NO( 23:ONE TOUCH PARM. ← → ] YES( ) NO( Installation Procedure 2 - 53 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 103: Ring Response Time

    20SEC ← 15SEC ← you want is displayed, then press ← key. (Each ring response time of 5,10,15 or 20 → sec. is given by pressing key.) Installation Procedure 2 - 54 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 104: Dial Parameters (Service Bit "Off")

    → [ OFF ] YES( ) NO( ]ENTER 4DIGITS ← IN CASE of 4 "SPACE" 0-9 or SPACE DIAL PREFIX ← → [0... ] YES( ) NO( ← → Installation Procedure 2 - 55 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 105: Clock Adjustment

    → YES( /1-4) ← Press key. ← Enter date and time by using the ten-key [04/25/96 12:33] pad (0 to 9 keys). ← → YES( /0-9) → OR 0-9 Installation Procedure 2 - 56 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 106: 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 107: System Data Programming

    3 SEC LATER 03..3 NO=03 3404 7123_ (Example) START NO=03 3404 7123 ID=_ → NUMERAL KEY + To the next page Note: Use the UNIQUE key to input special symbols. Installation Procedure 2 - 58 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 108 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 109: Dial Parameters Settings

    (with no message in memory) Press OT9 Enter 2 using the ten-key pad. 1:FUNC. PROGRAMMING ← → YES( /1-4) ← Press key. 2:DIAL PARAMETER ← → YES( /1-4) ← To DIAL PARAMETERS Installation Procedure 2 - 60 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 110 ← → [ OFF ] YES( ) NO( ]ENTER 4DIGITS ← IN CASE of 4"SPACE" 0-9 or SPACE DIAL PREFIX ← → [0... ] YES( ) NO( ← → Installation Procedure 2 - 61 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 111: Dial Parameters Settings (Table 2.9.6)

    ON:Enable OFF: Disable Access digit Prefix dialing digits with which PBX connects the fax to the public line. OFF/max. 4 digit(s) selectable. Digit: Enable OFF: Disable Not Used Installation Procedure 2 - 62 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 112: Off-Line Tests

    Version indication (An example of printed data is shown in PROG1 PROG2 Figure 2.9.4) XXXX XXXX XXXX 3 SEC LATER 1: SELF DIAGNOSIS EXCUTING 1: SELF DIAGNOSIS PRINTING Installation Procedure 2 - 63 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 113: Self-Diagnosis Print Test (Example) Figure 2.9.4

    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. Installation Procedure 2 - 64 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 114: On-Line Tests

    Use another machine for dialling. Make sure that • The display shows AUTO REC. START. • The message is automatically received. Typical message reception flow is described in Figure 2.9.6. Installation Procedure 2 - 65 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 115: Typical Transmission Flow (Fig. 2.9.5)

    4 DIAL NO. RECEIVED DCN? COMMUN. ERROR LOCAL PROBLEM EXAMPLES OCCURRED? COVER OPEN , or DOC. JAMMED , etc. RESULT = OK ( ABOUT 1 SEC.) 14:14[FAX] ( ← STANDBY) FX050-C2-021 Installation Procedure 2 - 66 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 116: Typical Reception Flow (Fig. 2.9.6)

    STATUS RECEIVING/144 MESSAGE RECEPTION COMPLETED? RECEIVED DCN? COMMUN. ERROR RECEPTION INTERRUPTED BY EXAMPLE LOCAL MACHINE? COVER OPEN RESULT = OK ( ABOUT 1 SEC.) 14:14[FAX] ( ← STANDBY) FX050VP-C2-022 Installation Procedure 2 - 67 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 117: Installation Of Optional Units

    • Detach the AC power cord to power OFF the unit. • Do not remove unnecessary parts. • Since screws and small parts are likely to be lost, they should temporarily be attached to their original positions. Installation Procedure 2 - 68 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 118: 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 119: Ctr (Pc Interface) Board Installation

    (PC Interface) Note: Insert the tip of a cutter or nipper between the mold of Cover-Rear and cut it out. Plate-Earth (PC I/F) Cut out Fig. C.2.2 Screw 1 Installation Procedure 2 - 70 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 120: Optional Telephone Set Installation

    (Fig. C.3.3). Fig. C.3.3 Connect the terminal on the other side of the connection cable to the back of the unit, to the telephone set. Installation Procedure 2 - 71 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 121 This page was intentionally left blank. Installation Procedure 2 - 72 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 122: 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 123: Fundamentals Of The Electro-Photographic Process

    At the same time, the residual toner on the Image drum is attracted to the developing roller by static electricity. Developing roller EP drum Brief Technical Description 3 - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 124 Residual toner on the Image drum is EP drum attracted to the cleaning roller temporarily by static electricity on the Image drum surface. Cleaning roller Power Transfer roller supply Brief Technical Description 3 - 3 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 125 This page was intentionally left blank. Brief Technical Description 3 - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 126: Actual Electrophotographic Process

    4 Transfer roller * Process: 1 : Charging 2 : Exposure 3 : Developing 4 : Transfer 5 : Fusing 6 : Cleaning Figure 3.2.1 Actual EP Process Brief Technical Description 3 - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 127: Boards And Units

    Operation panel assembly unit OPE: (O4W) • Power supply unit POW UNIT: (TLHV or OLHV, 048 POW;120V/230V) • Printer unit Figure 3.3.1 shows the related drawing of OKIOFFICE44 facsimile transceiver. Brief Technical Description 3 - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 128: 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 129: Overall Dimension And Mechanical Structure

    Roller - Heater Paper exit ID unit Roller - Scan Document exit Image sensor Manual paper feeder inlet Printer block Roller - Hopping Figure 3.4.1 Overall Dimension and Mechanical Structure Brief Technical Description 3 - 8 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 130: Section 4: Disassembly

    LED print head (old part), you do not always have to set the LED print head strobe time by the technical function No. 27. (Refer to chapter Disassembly 4 - 1 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 131: 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.

  • Page 132: Tools

    This section explains how to disassemble and reassemble the fax. • Figure 4.2 shows the disassembly procedure flow as generalization. • The detailed disassembly procedure is explained from sub-section 4.1.3.1 to 4.1.3.18. Disassembly 4 - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 133: Disassembly Procedure Flow Figure 4.1 (1/2)

    (4.1.3.5) Frame Assembly Plate Speaker Scanner-L Scanner (L) (4.1.3.5) (4.1.3.5) Plate Assembly Motor-S Scanner (R) (4.1.3.5) (4.1.3.5) (4.1.3.5) Plate Earth Plate Assembly PC1, PC2 Scanner (B) (4.1.3.5) (contact image sensor) Disassembly 4 - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 134: Disassembly Procedure Flow Figure 4.1 (2/2)

    Toner Sensor Assy. (4.1.3.16) Plessure Roller B (Backup Roller) (4.1.3.3) (4.1.3.3) Open the OPE Separation Printer Unit Panel Assembly Plate Assembly (4.1.3.12) (4.1.3.17) Plate-Side M Hopping Gear-Idle Shaft Assy. (4.1.3.13) Registration Roller Disassembly 4 - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 135: Whole Unit Picture

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

  • Page 136: Led Print Head

    LED head personnel initial setting. (Refer to table 3.9.1 TF No. 27 and 28) PC Connector (CP4.1 Fig. 04) Disassembly 4 - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 137: 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. This board devel- ops voltages of up to 1300 VDC as part of the normal printing process.
  • Page 138 3 and disconnect the connector (CN3) from Board- Guide-paper (L) NCU. (CP4.1 Fig. 08) Note:Board-NCU can be removed without removing the Cover-Main. (2) Reassembly procedure Reverse the disassembly procedures. Board-NCU Screw 3 (CP4.1 Fig. 09) Disassembly 4 - 9 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 139: Unit-048 Ope-Panel

    (4), and detaching the fixing hooks. Fixing hook Cable (1) (CP4.1 Fig. 12) Screw 4 e) Remove the two screws and remove the LCD. 2) Reassembly procedure Reverse the disassembly procedures. (CP4.1 Fig. 13) Disassembly 4 - 10 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 140: Separation Rubber, Sensor Frame Roller Assembly (U)

    Remove the frame assembly. (2) Reassembly procedure Reverse the disassembly procedure. Plate-Support Earth Cable (CP4.1 Fig. 16) Disassembly 4 - 11 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 141: Roller Assembly-Adf, Cis, Lever-Pc1 And Pc2

    (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 (CP4.1 Fig. 17) Disassembly 4 - 12 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...
  • Page 142 (CP4.1 Fig. 19) screws. Lever PC1 h) Remove the Plate Scanner (B) by removing the two screws and the part of the fixing hooks. Remove the CIS (contact image sensor). Disassembly 4 - 13 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 143 Plate Scanner B by pressing the latch using the flat screwdriver or like. (2) Reassembly procedure Reverse the disassembly procedures. Plate Scanner B 4.1.3.6 Board-R44, OKIOFFICE 44 Power Supply (CP4.1 Fig. 20) Disassembly 4 - 14 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 144 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. Power Supply Unit e) Remove the screws and remove the OKIOFFICE 44 Power Supply Unit.

  • Page 145: Option (Board-Memory: Mem, Board-Ctr; Pc Interface)

    Note: Install on the inner side connector for the Board-Memory (MEM) and outside connec- tor for the Board-PC interface (CTR). Board-Memory Board-CTR (PC Interface) Plate-Earth (PC I/F) Rear Cover (CP4.1 Fig. 07) Screw 1 Disassembly 4 - 16 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 146: Printer Unit Section

    Magnet H (hopping shaft) Roller holder Hopping roller Toner cartrige unit High-voltage Pulse motor (main) power supply board EP unit Power sensor E Sheet guide (CP4.1 Fig. 23) Disassembly 4 - 17 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 147: Transfer Roller

    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. Disassembly 4 - 18 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 148: High-Voltage Power Supply Unit (Tlhv/Olhv)

    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, voltage power supply board (TLHV/OLHV).

  • Page 149: Holder Assembly

    Remove the claw and dismount Spring-Holder. Remove the claw and dismount Spring-Stopper. Spring-Holder Guide-Paper (R) Spring-Stopper Guide-Paper (L) Holder-Paper Bracket-Package (CP4.1 Fig. 26) (2) Reassembly procedure Reverse the disassembly procedures. Disassembly 4 - 20 OKIOFFICE 44 Service Manual, P/N 59276801 Rev. 2...

  • Page 150: Plate-Side M And Gear-Idle

    Idle gear heat Idle gear P Idle gear 3R Idle gear P Idle gear M Idle gear R Plate Side-M Gear R Idle gear 2R Earth plate Screw 1 (CP4.1 Fig. 27) Disassembly 4 - 21 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 151: Registration Roller

    (Two registration Registration roller bearings also come off at the same time. Take care not to lose them.) Registration bearing (CP4.1 Fig. 28) Reassembly procedure Reverse the disassembly procedures. Disassembly 4 - 22 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 152: Drive Shaft E (Eject) And Eject Roller

    Unlock and dismount drive shaft E (Eject). Drive shaft E (Eject) Dismount two eject rollers. Idle gear E (B) Eject roller Idle gear E (A) Screw 1 (CP4.1 Fig. 29) Reassembly procedure Reverse the disassembly procedures. Disassembly 4 - 23 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 153: Heat Assembly

    Pull out the Holder-Assy. (See Section 4.1.3.11) (CP4.1 Fig. 30) Disconnect connector 2, remove two screws 1, and dismount the heat assembly. (2) Reassembly procedure Reverse the disassembly procedures (CP4.1 Fig. 31) Disassembly 4 - 24 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 154: Pressure Roller B (Back Up Roller)

    B. (Two bear- ing BUs and two bias springs also come off at the same time.) Bearing BU Bias spring Bias spring (CP4.1 Fig. 32) Reassembly procedure Reverse the disassembly procedures Disassembly 4 - 25 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 155: Hopping Shaft Assembly

    (Knock pin also comes off at the same time. Take care not to lose it.) Draw out hopping shaft assembly to the right and dismount magnet H. Reassembly procedure Reverse the disassembly procedures Disassembly 4 - 26 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 156: Paper Sensor E, Paper Sensor Exit And Toner Sensor Assembly

    (See Section 4.1.3.14) assembly Dismount the paper sensor E. Paper sensor E Dismount the paper sensor exit. (CP4.1 Fig. 34) Dismount the toner sensor assembly. Reassembly procedure Reverse the disassembly procedures Disassembly 4 - 27 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 157: Printer Unit

    Detach the four clamps from underneath, push inward on the top two tabs while lifting up to remove the Holder-Assy. Printer Unit Cable-Flat Holder Assy Bracket-Package Cable 1, 2 Disassembly 4 - 28 OKIOFFICE 44 Cable 3 Service Manual, P/N 59276801...

  • Page 158: Section 5: Adjustments

    This adjustment should be made whenever the main control board (R44 PCB) or the LED Head are replaced. In addition, this setting should be verified on initial unit install, or whenever firmware is updated. Adjustments 5 - 1 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 159: Confirmation Items

    Contact Image Sensor Output (SIG signal) • Measurement point: R44 board; CN5-1 pin and ground terminal • Specification: A waveform sample is shown below. • Test chart: White sheet (A4 size) 2.0Vp-p Adjustments 5 - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 160: 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.

  • Page 161: Measurement

    Connector CN5-1 pin (SIG) Ground Terminal Ground Terminal LC2-3 Pin Crystal Oscillator Connector CN7 CN7-1, 2, 3 (+5VDC) CN7-8 (+30VDC) CN7-9 (–8VDC) CN7-12 (+5VSUB) Figure 5.2.1 Measurement Points on R44 Board Adjustments 5 - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 162: 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.
  • Page 163 This page was intentionally left blank. Adjustments 5 - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 164: Section 6: Cleaning And Maintenance

    30,000 documents fed. Consumables Diagram (Figure 6.1.1) (2) I/D (image drum) unit (1) Toner cartridge (4) Separation rubber (3) Fuser unit Paper exit ID unit Cleaning and Maintenance 6 - 1 OKIOFFICE 44 Serv Man, P/N 59276801...
  • Page 165 This page was intentionally left blank. Cleaning and Maintenance 6 - 2 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 166: Others

    1,500 operations and misfeeds will be less than one in 500 operations for all specified recording paper. Battery The OKIOFFICE 44 does not have a battery. The MTBF for the overall machine will exceed 3,000 hours of actual operation. MTBF The MTBF will be measured at a confidence level of 95% under controlled laboratory conditions.

  • Page 167: Preventative Maintenance

    Printer unit moisturized with cold water. Apply silicone oil to the following parts: Lubrication a. Gears (once a year) Remove materials that have fallen from outside, if Cleaning any. Cleaning and Maintenance 6 - 4 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 168: 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 169: Printer Counter Display/Clear (User)

    Clear Operation After the drum counter is cleared, the warning message will disappear. For further information regarding the "CHANGE DRUM SOON" message, refer to the Hardware Handbook (user's documentation). Cleaning and Maintenance 6 - 6 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 170: Printer Counter Display/Clear (Service)

    SCAN COUNT XXXXXX This counter cannot be cleared. CLEAR (←) NEXT(→) ← Key → Key CLEAR After more than 3 sec. Cleaning and Maintenance 6 - 7 OKIOFFICE 44 Serv Man, P/N 59276801...
  • Page 171 This page was intentionally left blank. Cleaning and Maintenance 6 - 8 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 172: Self-Diagnosis Test

    XXXX XXXX XXXX (Display for 3 seconds) 1:SELF DIAGNOSIS (Figure 6.5.1 shows the printed data.) EXCUTING 1:SELF DIAGNOSIS PRINTING (Self diagnosis data is printing.) Cleaning and Maintenance 6 - 9 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 173: Self-Diagnosis Test Sample (Figure 6.5.1.)

    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. Cleaning and Maintenance 6 - 10 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 174: Explanation Of Self-Diagnosis Test Items

    In case OPT-RAM1 is not good. OPT-I/F In case OPT-I/F is good. PARALLEL In case OPT-I/F is not good. (ALL BLANK) • Figure 6.5.1 shows a printed sample. NG = No Good Cleaning and Maintenance 6 - 11 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 175: Sensor Calibration Test

    ← 1:LOCAL TEST Press key. ← → YES( /1-4) ← ← Press key. 1:SELF DAIGNOSIS ← → YES( /1-8) → To SENSOR CALIBRATION continued on the next page Cleaning and Maintenance 6 - 12 OKIOFFICE 44 Serv Man, P/N 59276801...
  • Page 176 End of document feed. NOTE: After performing the adjustment, make copies of test charts or known good documents. Compare the copies to the originals to evaluate the copy print quality. Cleaning and Maintenance 6 - 13 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 177: Led Test

    → ALARM → DARK → NORMAL → LIGHT → STD → FINE 1 second interval. all LED off ← all LED on ← PHOTO ← EX.FINE ← To end the test, press STOP key. Cleaning and Maintenance 6 - 14 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 178: Tone Send Test

    CML relay off *1: When the display indicates "2100Hz or 1100Hz SENDING", you may extend the tone send test for 30 more seconds by pressing the START key. Cleaning and Maintenance 6 - 15 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 179: High-Speed Modem Send Test

    → 33.6K (OKIFAX 5500/5600) → 28.8K (OKIFAX 5500/5600) → 14.4K → 12.0K → 9.6KT (V.17) → ← 0.3K ← 2.4K ← 4.8K ← 7.2K (V.29) ← 9.6K (V.29) ← 7.2KT (V.17) 33.6K and 28.8K are skipped for the MODEM without 33.6/28.8K bps function. Cleaning and Maintenance 6 - 16 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 180: High-Speed Modem Send And Receive Test Diagram (Figure 6.9.1)

    (minute, second) MODEM rate Test time ": (minute, second) All "0" XXXX: Error count Data Press STOP key. CML relay goes off. Press STOP key. CML relay goes off. Cleaning and Maintenance 6 - 17 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 181: High-Speed Modem Receive Test

    After the test, press STOP key. (For detail, see Fig. 6.9.1) → 14.4K → 12.0K → 9.6KT (V.17) → 7.2KT (V.17) → 9.6K (V.29) → 7.2K (V.29) → 4.8K → 2.4K → Cleaning and Maintenance 6 - 18 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 182: Mf Send Test

    697 Hz/1477 Hz 770 Hz/1209 Hz 770 Hz/1366 Hz 770 Hz/1477 Hz 852 Hz/1209 Hz 852 Hz/1366 Hz 852 Hz/1477 Hz 941 Hz/1366 Hz 941 Hz/1209 Hz 941 Hz/1477 Hz Cleaning and Maintenance 6 - 19 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 183: Tone (Tel/Fax)

    → YES( /1-8) message in memory) Enter 8. 8:TONE(TEL/FAX) TEST ← → YES( /1-8) ← ← Press key. 8:TONE(TEL/FAX) TEST TONE SENDING After the test, press STOP key. Cleaning and Maintenance 6 - 20 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 184: Protocol Data Dump Printing

    MEMORY AVAIL.=100% Press one-touch key No.6 1:ACTIVITY REPORT ← → YES( /1-5) Enter 5. 5:PROTOCOL DUMP ← → YES( /1-5) ← ← Press key. PROTOCOL DUMP PRINTING (Printing) Cleaning and Maintenance 6 - 21 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 185: Sample Protocol Data Dump (Figure 6.13.1)

    FF C0 02 0C 0C 2C AC 04 4C 4C 04 AC 9C 2C 0C 04 04 04 04 04 04 04 04 TRANSMITTED CSI/CIG/TSI FF C0 C2 2C CC 4C 8C 04 6C EC 2C AC 04 CC 0C 04 04 04 04 04 04 04 04 Cleaning and Maintenance 6 - 22 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 186: Data Analysis (Figure 6.13.2)

    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 (04) (02) (01) (C2) (C4) Training (21) Training FAX MSG. (FD,F4) PPS•EOP (31) (DF) : Preamble Cleaning and Maintenance 6 - 23 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 187: Facsimile Control Field Conversion Table

    End of Retransmission Response to End of Retransmission Facsimile Coded Data Partial Page Signal Partial Page Request Return to Control for Partial Page Receiver not Ready Receiver Ready Cleaning and Maintenance 6 - 24 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 188: System Reset

    /1-3) ← → 3:CONFIG. DATA CLR ← → YES( /1-3) ← → ARE YOU SURE ? ← → YES( ← → Data CLR CLEAR End of data clear Cleaning and Maintenance 6 - 25 OKIOFFICE 44 Serv Man, P/N 59276801...
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  • Page 190 -39XX: For error codes in Group 3 reception phase C -41XX: For error codes in Group 3 transmission phase D -49XX: For error codes in Group 3 reception phase D Cleaning and Maintenance 6 - 27 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 191: Service Code List [Table 6.15.1]

    The number of random-error lines have exceeded the specified limit. 39B0 Memory Overflow has occurred while receiving in memory. 39B1 Memory Overflow occurred during Confidential Reception. 39C0 DECODER hardware error. (cannot reproduce picture) Cleaning and Maintenance 6 - 28 OKIOFFICE 44 Serv Man, P/N 59276801...

  • Page 192: Service Code List [Table 6.15.1] (1/2)

    90D5 ENCODER error. (Picture storage fault) 90F0 Option (2'nd tray) error. 90F1 Fan motor error. 90F2 Fuser error. 90F3 Recording paper size error. 90F4 Cover open. Cleaning and Maintenance 6 - 29 OKIOFFICE 44 Serv Man, P/N 59276801 Rev. 2...
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  • Page 194: Section 7: Troubleshooting

    7.1.15 Tone (TEL/FAX) send test 7.1.16 No acoustic line monitor 7.1.17 Power supply unit 7.1.18 No document feeding 7.1.19 Multiple document feeding 7.1.20 Document skew 7.1.21 Document jam 7.1.22 Printer unit Troubleshooting 7 - 1 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 195: 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.

  • Page 196: 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 197: No Lcd Operation

    R44 and OPE (O4W) boards. NOTE: Perform this action before replacing the OPE Panel unit Return to section 7.1.1 Return to section 7.1.1 or the R44 Board Troubleshooting 7 - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 198: Alarm Led On

    2. Check PC2. 3. Replace R44 board. See 7.1.20 for further details. Note* : "PRINTER ALARM i" will be shown as follows: PRINTER ALARM 1 to PRINTER ALARM 4. Troubleshooting 7 - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 199: 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 200: No Local Copy

    3. Replace the contact image sensor assembly. Copy quality OK? Perform SENSOR CALIBRA- TION including adjustment of level (See 6.6) Solved? Replace R44 board. Return to section 7.1.1 Solved? Replace the contact image sensor assembly. Troubleshooting 7 - 7 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 202: Auto Dial Failure

    Replace R44 Board. code Note 1: If you do not have any other fax machine (OKIOFFICE 44) for testing, follow this route. Then, if the problem is unsolved, return to the main route. Return to section 7.1.1 Note 2: NCU Board is shown as UNC for US version.

  • Page 203: Transmission Problem

    (Technical function No. 14) to 4800 bps. Solved? Step 3: Adjust send signal power level. (Technical function No. 22) Solved? Step 4: Set ECHO PROTECTION (Technical function No. 12) to ON. Solved? Return to section 7.1.1 Troubleshooting 7 - 10 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 204 Description: Protective tone is 1700 Hz/200 ms. This signal is added to training signal to protect the training signal against echo as follows. message signal Protective tone 1700 Hz/200 ms Troubleshooting 7 - 11 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 206: Auto Reception Failure

    Replace the R44 Board. Solved? Replace the NCU Board. Solved? Check that the ringing signal meets the specification of the fax machine. (See Item of Table) Return to section 7.1.1 Troubleshooting 7 - 13 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 207: Reception Problem

    (Technical function No. 14) to 4800 bps. Solved? Step 3: Adjust equalizing level. (Technical function No. 21) Solved? Step 4: Set ECHO PROTECTION (Technical function No. 12) to "ON". Solved? Return to section 7.1.1 Troubleshooting 7 - 14 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 208 Note: Even if the high-speed modem test results in success, 300 bps signal route remains unchecked. In that case, the most suspected unit is R44 board. Troubleshooting 7 - 15 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 209: Sensor Calibration Test

    NA Letter size is loaded on the feeder. Abnormal feeding is observed during No document SCANNING CHECK? feeding Go to 7.1.17. Multiple document feeding Go to 7.1.18. Document skew Go to 7.1.19. Document jam Go to 7.1.20. Troubleshooting 7 - 16 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 210: Led Test

    ALARM LED lights? DARK LED lights? NORMAL LED lights? LIGHT LED lights? STD LED lights? FINE LED lights? EX. FINE LED lights? PHOTO LED lights? Check the corresponding LED(s) on OPE board. Troubleshooting 7 - 17 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 212: Tone Send Test

    IC8-1, 2 → IC12-7 (S) → CN10-A8, B8 (S) Signal route: CN3-15, 16 → T1-3, 1 → Replace WN5 Board. CN1-3, 4 Solved? Possible cause: Replace R44 Board. CML signal Return to section 7.1.1 Troubleshooting 7 - 19 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 213: High-Speed Modem Test

    Possible cause: Replace R44 Board. CML signal Signal route: IC8-26 to 33 (AD0 to AD7)→ Replace R44 Board. IC8-1, 2 →IC12-7 (S)→CN10-A8, B8 (S)→ CN1-3, 4 (S) Return to section 7.1.1 Troubleshooting 7 - 20 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 214 IC8-26 to 33 (AD0 to AD7) Signal route: Replace NCU Board. CN1-3, 4→RL1-8, 5→ T1-1, 3→T1-2, 6→ CN3-19, 20 (R) Solved? Possible cause: Replace R44 Board. CML signal Return to section 7.1.1 Troubleshooting 7 - 21 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 215: Mf Send Test

    IC8-26 to 33 (AD0 to AD7)→ IC8-1, 2→IC12-7 (S)→ CN10-A8, B8 (S) Signal route: Replace WN5 Board. CN3-15, 16→T1-3, 1→ CN1-3, 4 Solved? Possible cause: Replace R44 Board. CML signal Return to section 7.1.1 Troubleshooting 7 - 22 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 216: Tone (Tel/Fax) Send Test

    IC8-26 to 33 (ADO to AD7) →IC8- IC12-7 (S) →ΧΝ10−Α8, Β8 (Σ) Signal route: Replace WN5 Board. CN3-15, 16→T1-3, 1→ CN1-3, 4 Solved? Possible cause: Replace R44 Board. CML signal Return to section 7.1.1 Troubleshooting 7 - 23 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 217: No Acoustic Line Monitor

    CN8-02 (AG). The signal appears? Replace the speaker. A message can be received normally? Go to 7.1.9. (Reception problem) Replace R44 Board. Signal route (R): CN10-A6, B6→IC12-1 (RM)→ TR1-2→IC11-1→IC11-3 IC5-5 Troubleshooting 7 - 24 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 218: No Document Feeding

    Are there bits of paper or Remove them, then clean the adhesive tape on the surface of the scanning route. document transport route? Replace the roller-ADF assembly, sub-roller and/or the separation rubber. Troubleshooting 7 - 25 OKIOFFICE 44 Service Manual, P/N 59276801...
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  • Page 220: Multiple Document Feeding

    Replace the separation rubber. Solved? Return to section 7.1.1. Check the roller-ADF assembly. Troubleshooting 7 - 27 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 221: Document Skew

    Is the control panel unit firmly closed? Are there obstacles such as pieces of Remove the obstacles. paper in the document-passing slot? Is the document-passing slot rugged Replace the rugged parts. due to flaws, etc.? Troubleshooting 7 - 28 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 222 Are the feed follers dirty? Is the scan roller Replace it. worn or slippery? Is the ADF Roller ? Clean it. Replace the ADF roller, the scan roller, and/or the pinch rollers. Troubleshooting 7 - 29 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 223: Document Jam

    Are parts guiding a document rugged due to Replace the parts. flaws, etc.? Is the Scan roller dirty? Clean it. Replace the scan roller. Troubleshooting 7 - 30 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 224: Printer Unit

    (2) Do not expose the drum to direct sunlight. (3) Keep hands off the fuser unit as it is heated during operation. (4) Do not expose the drum to light for longer than 5 minutes at room temperature. Troubleshooting 7 - 31 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 225: Troubleshooting Flow Charts Of Printer Unit

    TONER LOW [FAX] Note: No toner memory RX is ON. REPLACE TONER CART. Daily status Toner is running short. 14:14 [FAX] Note: No toner memory RX is OFF. REPLACE TONER CART. Troubleshooting 7 - 32 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 226: 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 227: 2: Replace Image Drum Message

    Top cover Assembly. Reconnect AC power cord. Does the CHANGE See ACTION 3. DRUM message remain on display? Is the R44 Board Mount it properly. mounted properly? See ACTION 4. Troubleshooting 7 - 34 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 228: 3: Engine Controller Error

    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. Troubleshooting 7 - 35 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 229: 4: Fuser Unit Thermal Error

    Open and close the Top Cover Assembly Is the fuser unit heater See ACTION 7. off? Is the heater Replace the heater unit. wire broken? See ACTION 9. See ACTION 8. Troubleshooting 7 - 36 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 230: 5: Paper Jams

    Does the error occur while See ACTION 11. paper is under the EP drum? Does the error occur while the paper is at the See ACTION 12. eject station? See ACTION 13. Troubleshooting 7 - 37 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 231: 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 232: Action Items (Printer Unit-Lcd Message) Table 7.1.22.2

    Check R44 Board. Check R44 Board. Check thermister (resistance of about 200 kilo ohms at room temperature and about 140 kilo ohms at high Check PWU, R44 board. temperature), POWER SUPPLY UNIT. Troubleshooting 7 - 39 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 233: Sample Image Problems (Figure 7.1.22.1)

    Poor fusing (Images are blurred or peeled off when touched by hands) Sample Image Problems (Figure 7.1.22.1) Fig. A Fig. B Fig. C Fig. D Fig. E Fig. F Troubleshooting 7 - 40 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 234: 7: Light Or Blurred Output

    Does the contact plate of the transfer Make good contact. roller make proper contact with the Power Supply Board? Replace the transfer roller, EP unit or Power Supply Unit. Troubleshooting 7 - 41 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 235: 8: Smeared Background On Output

    Adjust the contact of the of the EP unit in contact cleaning roller to contact with the contact assembly properly? the contact assembly properly. Replace the EP unit or PWU-HV Board R44 Board Troubleshooting 7 - 42 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 236: 9: Blank Output

    (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. Troubleshooting 7 - 43 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 237: 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 238: 11: Evenly Spaced Marks On Output

    Replace the transfer roller. period? Heater roller (inside the fuser unit) 2.46" (62.5 mm) failure. period? Replace the fuser unit. 1.98" (50.3 mm) Replace the Back-up roller. period? Check the fax control side. Troubleshooting 7 - 45 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 239: 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 240: 13: Vertical White Stripes On Output

    End. Is the LED print head installed Install the LED print head prolerly. properly? Replace the LED print head. Solved? END. Replace the EP unit. Solved? Replace the PWU-HV Board Troubleshooting 7 - 47 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 241: 14: Poor Fusing

    Adjust for proper contact between the fuser unit and the contact the fuser unit and the assembly? contact assembly. Check the thermister, the heater (inside the fuser unit), R44 board and Power Supply Unit. Troubleshooting 7 - 48 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 242: 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 244: 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 246: 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...
  • Page 247 Board Descriptions A - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 248: Block Diagram Abbreviations

    POW.UNIT : Power supply unit PSRAM : Pseudo-SRAM R-MOTOR : Resist motor : Real time clock S-MOTOR : Send motor SRAM : Static random-access memory X’tal : Crystal oscillator Board Descriptions A - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 249: A1.2 Function Of Each Unit

    Supervision of switches on operation panel • Control of LEDs on operation panel • Control of LCD on operation panel LED : Light-emitting diode LCD : Liquid crystal display Board Descriptions A - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 250: Ncu Board (Unc5)

    CTR Board (PC Interface) • Driver circuits HOOK Board (Option) • Hook switch circuit TELU Board (Option) This is contained within the optional handset. • Speech network circuit Basic speech functions included. Board Descriptions A - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 251: 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 252 Board Descriptions A - 9 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 253: G3 Send Mode

    After modulation, the picture signal “S” is sent to the NCU board as the transmission data. The transmis- sion data “S” goes through the amplifier and is sent to the telephone line L1 and L2 via the transformer T1 as high speed signal. Board Descriptions A - 10 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 254 Board Descriptions A - 11 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 255: G3 Receive Mode

    DRAM/P-SRAM, the data is read out from the DRAM and sent to IOGA. The picture data is converted into a signal data by the printer control of IOGA and transferred to the LED print head for printing as HDATA 0/1. Board Descriptions A - 12 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 256 Board Descriptions A - 13 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 257: Bps Send Mode

    DCLK (data clock). After modula- tion, the protocol signal is output from “S” of the modem and sent to the telephone line L1 and L2 via the transformer T1 of NCU. Board Descriptions A - 14 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 258 Board Descriptions A - 15 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 259: Bps Receive Mode

    The written data is interpreted according to bit assignment of the binary procedural signals in the ITU recom- mendations. The successive modes of communication (for example, line density, encoding scheme, etc.) are determined. Board Descriptions A - 16 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 260 Board Descriptions A - 17 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 261: Report Printing

    DRAM and sent to IOGA. The data is converted into a serial data by the picture control of IOGA and trans- ferred to the LED print head for printing as HDATA 0/1. Board Descriptions A - 18 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 262 Board Descriptions A - 19 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 263: Memory Transmission

    (DRAM), the data is read out from the memory and sent to IOGA. The printed data is converted into a serial data by the printer control of IOGA and transferred to the LED print head for printing as HDATA 0/1. Board Descriptions A - 20 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 264 Data/Address bus Port C (PC1/PC2) Port A Initial Reset Circuit +5 V Port B PWRDY-N D-motor Clutch XTAL 20 MHz 20 MHz EXTAL Related Signals of CPU (Figure A3.1.1) Board Descriptions A - 21 OKIOFFICE 44 Serv. Man., P/N 59276801...
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  • Page 266 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 267 AD03), 4-bit address bus (A01 - A04) and the control signals, RTCCS, MDMRD-N and MDWR-N which perform a CPU-controlled read operation (M/D/Y H:M, Data read) and write operation (M/D/Y H:M, Data setting). Board Descriptions A - 24 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 268 512 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 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 269 CPU. +5 V IC11 Speaker Amplifier MONC0 Analog switch MONC1 0 VA MONC2 IOGA3 0 VA Figure A3.1.4 Block Diagram of Audio Monitor Circuit Board Descriptions A - 26 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 270 -8 V -8 V 2, 5, 7 0 VA 0 VA 30 V/24 V conversion 24 V circuit Figure A3.1.5 Related Signals and Block Diagram of CIS (contact image sensor) Board Descriptions A - 27 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 271 AD0 to AD7 A1 to A7 MDINT1-N MDRST-N MDCSI-N IOGA 29.4912 MHz MDMRD-N MDMWR-N X'tal CN10 IC12 A8, B8 A6, B6 IC12 Modem 14.4 kbps Figure A3.1.6 Related Signals of Modem Board Descriptions A - 28 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 272 10, 11, 12, 13 Strobe 1664 bits (208 mm) 1, 2 0 VP 3, 4 +5 V +5 V 5, 14 Figure A3.1.7 Related Signals and Block Diagram of LED Head Board Descriptions A - 29 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 273 CPU in serial data from OPE. • OPECHK : Use to monitor the operation of the OPE unit. • OPERST : Reset signal for OPE unit • WAKEUP-N : Wakeup signal Board Descriptions A - 30 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 274 OPRST-N IRST OPECHK OPECHK LCD unit IOGA +5 V +5 V Control signals Eight LEDs PCI-N RIINT LEDs HUP-N Figure A3.1.9 Interface between R44 Board and OPE (operation unit) Board Descriptions A - 31 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 275 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. Man., P/N 59276801...
  • Page 276 Drum motor DMPH1 DM-T2 DMPH2 Drum motor DM-T3 drive DMON1-N DM-T4 Clutch (2 phase excitation) TR4/TR2 PJON Clutch Clutch drive Figure A3.1.11 Related Signals of Drum Motor and Clutch Board Descriptions A - 33 OKIOFFICE 44 Serv. Man., P/N 59276801...
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  • Page 278 IOGA SPH1 PHS1 Send motor SPH2 PHS2 Send motor SPH3 PHS3 drive SPH4 PHS4 (1-2 phase excitation) Figure A3.1.12 Related Signals of Send Motor Board Descriptions A - 35 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 279 PCS1-N to PCS4-N B19, B20 P-SRAM PCS1-N to PCS4-N PSREAD-N PSREAD-N IOGA RAM1 RAM2 A13, B13 A5, B5, A18, Figure A3.1.13 Interface between R44 Board and Memory Board (option) Board Descriptions A - 36 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 280 BREQ BREQ-O BACK BACK-I BACK-O RD/WRT/CASL/RMCS RD/WRT/CASL/RMCS AD0-AD7 AD0-AD7 AD8-AD15 SH7034 AD8-AD15 EPM7064LC68-15 CN11 50pin CTR (option) Figure A3.1.14 Interface between R44 Board and CTR Board (PC interface unit) Board Descriptions A - 37 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 281 "The length of time of low-toner state within fixed time interval" detects a low-toner state. CVOPN-N Cover open Detects whether the cover of the printer section is open or not. sensor 0: Cover is open, 1: Cover is close Board Descriptions A - 38 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 282 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 283 TRC1ON for AC voltage supply to the heater. 048-POW HEATON HEAT-N Heater on/off circuit IOGA ACIN ACON THON PA11 TRC1 THCHK AOUT Thermostat OLHV/TLHV Heater Board THCHK Thermistor Fuser unit Figure A3.1.16 Fuser Unit Temperature Control Board Descriptions A - 40 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 284 EP drum Toner supply roller High-voltage Cleaning roller TR1/TR2 DBON1 generation DBON2 circuit DBPWM TR1PWM CHPWM TR2PWM Medium- voltage generation Transfer roller circuit DB1/DB2 SB1/SB2 Figure A3.2.17 High/Medium Voltages Control Board Descriptions A - 41 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 285: A3.3 Ope (04W) Circuit Diagram

    Eight LEDs (ALARM, PHOTO, LIGHT, etc.) on the control panel are driven by output of IC1 via resistors R1, R4-9 and R11 respectively. An LED lights on when a port output is 1. Board Descriptions A - 42 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 286 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) Board Descriptions A - 43 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 287: A3.5 Power Supply Unit For Okioffice 44

    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.
  • Page 288 100 mVP-P 250 mVP-P Block diagram Figure A3.5.1 shows a block diagram of 048 POW. * The information contained herein can change without notice owing to product and/or technical improvements. Board Descriptions A - 45 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 289 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 290: Service Caution

    Contact ass'y 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.
  • Page 291 Q15 at a constant voltage by D66 and D65. 5-6-4 CH The CH output voltage is stabilized by keeping the primary flyback voltage obtained by switching operation of Q16 at a constant voltage by D76 and D82. Board Descriptions A - 48 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 292 CVOPN-N signal is sent to the control board to notify it the off state of the microswitch, and the control board performs the cover open processing. Board Descriptions A - 49 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 293 This page was intentionally left blank. Board Descriptions A - 50 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 294: A3.7 Unc5 (Ncu) Circuit Diagram

    Note 1: This procedure may be omitted depending on the dial parameters. Note 2: MF (Multi-frequency) tone is generated by the modem and transferred to the telephone line via the NCU board. Board Descriptions A - 51 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 295 The transformer on the UNC board for OKIFAX 5600 is covered with the shield case for the low-level receiving countermeasure. Off-hook detector (IC2) This circuit detects the off-hook state of the telephone connected to the TEL1, TEL2 through LINE terminals. Board Descriptions A - 52 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 296 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 297: A3.8 Telu Circuit Diagram (Option)

    Receive signal from the telephone line enters Speech IC via UNC, Hook switch and DB2 and is output to pin 2 & 3 of the speaker of the handset. Board Descriptions A - 54 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 298: 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 299: A3.10 Memo (Memory) Circuit Diagram (Option)

    Board Name OKIOFFICE 44 1 Mbyte Mounted Mounted Not mounted Not mounted MEMO-2 Note: The OKIOFFICE 44 does not back-up the message received in memory during a power failure. Board Descriptions A - 56 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 300: Related Signals Of Memory Board (Option) (Figure A3.10.1)

    A0 to A18 A0 to A18 RD-N RD-N WRL-N WRL-N A20, A21 P-SRAM PCS1-N to PCS4-N PCS1-N to PCS4-N B19, B20 PSREAD-N PSREAD-N IOGA RAM1 RAM2 A13, B13 A5, B5, A18, Board Descriptions A - 57 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 301 This page was intentionally left blank. Board Descriptions A - 58 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 302 PSBN VEROP FLT-N SELP Host PC ACK-N IOGA BSYP IPRN AFXN 1284-I/F SLIN BACKO PD0 to PD7 AD8 to AD15 Figure A3.12.1 Related Signals of P050 (PC interface unit) Board Descriptions A - 59 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 303 Oki-MFPI protocol in both Fax machine and Host PC. Note: A simultaneous operation is not supported in OKIOFFICE 44, but the structure is same as other machine (OKIFAX 5000 series).
  • Page 304 By using MFPL command, it is possible to display on screen of Host PC for condition of Fax machine and performs the initial registration of the telephone number used in Fax machine. Board Descriptions A - 61 OKIOFFICE 44 Serv. Man., P/N 59276801...
  • Page 305 This page was intentionally left blank. Board Descriptions A - 62 OKIOFFICE 44 Serv. Man., P/N 59276801...

  • Page 306: Service Manual, P/N

    (φ16.000) 17.23 20.32 Developing roller (φ14.000) 12.72 Single tray 23.18 Transfer roller Paper sensor (φ15.000) Feed roller Manual printing Hopping roller Manual feed sensor ON OFF Tray printing Print Operation Description B - 1 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 307 AC voltage supply. If the heat roller temperature rises abnormally, the thermostat of the heater voltage supply circuit functions to forcibly suspend the AC voltage supply. Print Operation Description B - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 308: 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 309: B1.2 Electrophotographic Process

    The transferred unfused toner image is fused to a sheet of paper by applying heat and pressure to the image. Figure B1.3 is a flow for the electrophotographic process. Print Operation Description B - 4 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 310 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 311: B1.2.1 Operations Process Explanations

    When the clutch is on, the hopping gear engages with the clutch plate to rotate the hopping roller. When the clutch is off, the hopping gear is separated from the clutch plate by the spring for resetting, disabling the rotation of the hopping roller. Print Operation Description B - 6 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 312: Printing And Warm-Up

    At printing Transfer gear Resist gear Idle gear Planetary gear b" Hopping gear Gear A Pulse motor (main) The paper is further advanced in synchronization to the print data. Print Operation Description B - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 313: Exposure

    LED head LED head Charge roller High- voltage power supply image drum Image drum Paper Print Operation Description B - 8 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 314: Development

    A toner adheres to the exposure part of the image drum in the contact part between the image drum and developing roller. This causes the electrostatic latent image to be changed to a visible image. Print Operation Description B - 9 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 315: Transfer

    This enables transfer to the sheet of paper. Image drum Paper High-voltage Transfer roller power supply Print Operation Description B - 10 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 316: Fusing

    After transfer has terminated, the cleaning roller temporarily draws in the untransferred residual toner adhering to the image drum with static electricity and then returns it to the image drum. Image drum Cleaning roller High-voltage power supply Transfer roller Print Operation Description B - 11 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 317: Paper Feed Check List

    2.52" (64 mm) L 45.0 45.0 Paper outlet jam Outlet sensor OFF 15.77" (400.56 mm) Paper end sensor OFF/ 121.9 Paper feed jam 2 20.0 20.0 Outlet sensor OFF Unit: mm Print Operation Description B - 12 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 318: 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 319: B1.4 Toner Low Detection

    (d) After the image drum unit has been replaced (after the drum counter has been reset), Toner Low is not detected when the drum counter indicates 1 to 100 counts. Print Operation Description B - 14 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 320 (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 321: B1.5 Cover Open

    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. Print Operation Description B - 16 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 322: 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...
  • Page 323 This page was intentionally left blank. Circuit Diagrams C - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 324 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 325 Section 1: Cabinet Assembly 1/2 Illustrated Parts List D - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 326: Appendix D: Illustrated Parts List

    OPE Panel Assembly 40022701 RSPL 40025401 Cover-Main 40025401 RSPL 40025301 Cover-Front 40025301 RSPL 40025501 Cover-Rear 40025501 RSPL 40025601 Cover-NCU 40025601 RSPL 40022101 Cover Assy.-Top 40022101 RSPL 40026101 Spring-TC 40026101 RSPL Illustrated Parts List D - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 327: 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 328 40025701 RSPL 40025801 Tray-Paper 40025801 RSPL 40375801 Stacker Assy.-Document 40375801 RSPL Screw-Tapping (S-M2) 223A7010P0003 TM-6-DC1 Connector-Plug 40123402 Dust Cover Plate Assy.-PC I/F 4PP4120-1187P001 Plate-Earth (PCFX) 40332701 Label-Manual Slot Illustrated Parts List D - 5 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 329: Section 2: Printer Unit

    Section 2: Printer Unit Illustrated Parts List D - 6 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 330 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 331: Section 3: Operator Panel

    Section 3: Operator Panel Illustrated Parts List D - 8 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 332 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 333: Section 4: Operator Panel Assembly

    Section 4: Operator Panel Assembly Illustrated Parts List D - 10 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 334 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 335: 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 336 40020501 Spring-Latch 40020501 RSPL Plate Assy.-Scanner (B) B Screw FA 40153801 Spring-Reinforcement 40153801 RSPL 40025201 Gear-Z38 40025202 RSPL 40024501 Spring-CIS 40024501 RSPL 40019201 Frame Assemby (Scanner) 40019201 RSPL Illustrated Parts List D - 13 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 337: 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 338 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 339: 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 340 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 341: 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 342: Illustrated Parts List

    B SCREW FA 40021201 Roller Assy.-Sensor 40021201 RSPL 40022001 Bearing-S 40022001 RSPL 40020801 Gear-Z31 40020801 RSPL 40026301 Bar-Discharge 40026301 RSPL Cord: Earth 40021001 Frame Assy - Scanner U 40021001 Illustrated Parts List D - 19 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 343: Section 9: Cover Assembly-Top

    Section 9: Cover Assembly-Top Illustrated Parts List D - 20 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 344 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 40093201 RSPL 40175801 Film-Exit (A) Illustrated Parts List D - 21 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 345: Section 10: Plate Assembly-Base

    Section 10: Plate Assembly-Base Illustrated Parts List D - 22 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 346 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 347: 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 348 Gear: Idle E (A) 51238201 RSPL 3PP4083-1187P1 Gear: Idle E (B) 51238301 RSPL 3PP4083-1170P1 Shaft: Drive E (Eject) 51113801 RSPL 4PB4083-1171P1 Roller: Eject 53348601 RSPL 3PP4083-1141P1 Bearing: Resistration 51609101 RSPL Illustrated Parts List D - 25 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 349: 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 350 50930901 RSPL 1PP4083-1241P1 Guide: Sheet 51021601 RSPL 1YX4083-1200G1 Fuser Assy. (120 V) 56802601 RSPL 1YX4083-1200G2 Fuser Assy. (230 V) 56802602 RSPL 40034001 Stopper Spring 4PB4091-6047P1 Caution Label (TR) 230V Illustrated Parts List D - 27 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 351: Section 12: Cables

    Section 12: Cables Illustrated Parts List D - 28 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 352 1051070C0001 TFC-16813 Core 105A1067C1001 FPC-25-12 Core 236A3161P0002 TEL/LINE Cable 56621001 4YS3512-1485P001 AC CORD 56631801 4YS4111-5581P001 CORD (TEL1-TEL 2) 105A1062C0002 0443-167251 Core 105A1068C1004 SFC-8 Core For TEL/LINE Cord use Illustrated Parts List D - 29 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 353: Section 13: Miscellaneous Items

    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)

  • Page 354: User's Manuals

    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...

  • Page 355: Service Manual, P/N

    This page was intentionally left blank. Illustrated Parts List D - 32 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 356: 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.

  • Page 357: Mem Pcb

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

  • Page 358: Tel-U Pcb

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

  • Page 359: Hook Pcb

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

  • Page 360: 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...
  • Page 361 This page was intentionally left blank. Second Paper Feeder F - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 362: Appendix G: Rmcs System

    ROM/RAM Check Test On Line RMCS Remote A/R Machine Inf. Counter Data COM. Port Setting Enviroment RMCS Frame Size Setting Ope. Report Terminate Figure 1 Remote Manegement Center System (RMCS) RMCS System G - 1 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 363: Notes To Users

    Connectable Peripheral Equipment Printer Mouse Microsoft mouse or equivalent Telephone To use a mouse, a mouse driver program is required. This program is automatically incorporated by the installation program. RMCS System G - 2 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 364: Setup

    3) Connect RS232C cable between COM. Port of the IBM PC/AT and PC-I/F board of the Facsimile. 4) Connect the power plug of the IBM PC/AT and the Facsimile and turn their power switch on. RMCS System G - 3 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 365: Installation

    [4] Update the password. [5] Update the dip switches. [6] Delete the RMCS basic system. [7] End of the Menu. Each processing from [1] to [6] is described later. RMCS System G - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 366: Registering The Rmcs Basic System

    1) Enter the drive No. used to register the system. Remote Management Center System << RMCS SETTING >> HARD DISK DRIVE = [C] DIRECTORY = [C:\RMCS_ Press the Esc key to cancel. RMCS System G - 5 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 367 When you use RMCS Model 20, you need only press [Enter]. OFF corresponds to 1 and ON to 0. Therefore set the dip switches to 11000000 in the following case. RMCS System G - 6 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 368 << RMCS SETTING >> "RMCS" system already registered! Over write OK ? Press the Esc key to cancel. 6) When updating, enter [Y]. Then updating status. When not updating, enter [N]. RMCS System G - 7 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 369: Registering The Facsimile Model No

    3) When the model number to be registered is correct, enter [Y]. The program corresponding to the model number is now registered. If not correct, enter [N]. Then repeat from step 1) again. RMCS System G - 8 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 370: Deleting The Facsimile Model No

    3) When the model number deleted is correct, enter [Y]. The program corresponding to the model number is now deleted. If not correct, enter [N]. Then repeat from step 1) again. RMCS System G - 9 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 371: Updating The Password

    3) When the setting is correct, enter [Y]. The password is now updated. If not correct, enter [N]. Then repeat from step 1) again. If the system operator does not define the PASSWORD, PASSWORD is not checked when RMCS starting. RMCS System G - 10 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 372: Updating The Dip Switches

    Press the Esc key to cancel. 3) When the setting is corrected, enter [Y]. The dip switches are now updated. If not correct, enter [N]. Then repeat from step 1) again. RMCS System G - 11 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 373: 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. RMCS System G - 12 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 374: Rmcs Basic Operation

    Enter the password registered at installation. When the correct password is entered. TEL Directory menu screen is displayed. If you enter wrong password three times, ID and password entry screen is closed and return to the PC-DOS command input state. RMCS System G - 13 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 375: Tel Directory

    Select “Terminate” to stop processing and return to the TEL directory menu screen. Select “Execute” to copy user information between the drives and return to the TEL directory menu screen. RMCS System G - 14 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 376: Main Menu

    File [LOAD] (Center to FAX) and [EDIT] (ON LINE). Operation report: The operation report displays the transmission status. Press [F1] to return to the main menu screen. RMCS System G - 15 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 377: Message Modifying Tool

    • Press [Page Up] or [Page Down] to scroll the screen back to the previous page or up to the next page. • Press [Esc] to terminate the FAX model selection and return to the menu screen. RMCS System G - 16 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 378: Saving Message

    • Press [Page Up] or [Page Down] to scroll the screen back to the previous page or up to the next page. • Press [Esc] to terminate the FAX model selection and return to the menu screen. RMCS System G - 17 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 379: Confirmation

    • Press [Page Up] or [Page Down] to scroll the screen back to the previous page or up to the next page. • Press [Esc] to terminate the FAX model selection and return to the menu screen. RMCS System G - 18 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 380: Confirmation

    "ON LINE" text inst. tx install text FAX MODEL sc OOOO p. tx Printing screen text online tx. tx "ON LINE" text scrnerr. tx Error message text RMCS System G - 19 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 381: Service Manual, P/N

    This page was intentionally left blank. RMCS System G - 20 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 382: Appendix H: Product Service Bulletins

    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.
  • Page 383 This page was intentionally left blank. Product Service Bulletins H - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 384 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.
  • Page 385 This page was intentionally left blank. Product Service Bulletins H - 4 OKIOFFICE 44 Service Manual, P/N 59276801...

  • Page 386: Appendix I: Recommended Spare Parts List (Rspl)

    The contact number for Faxable Facts is: 1-800-654-6651. OKILINK II OKILINK II is OKIDATA's Bulletin Board Service. This service is available to all OKIDATA Certified Service Technicians. OKILINK II provides additional troubleshooting and service information. Techni- cians can download files, ask questions of OKIDATA's technical support personnel, and participate in round table discussions about OKIDATA products and services.

  • Page 387: Okioffice

    This page was intentionally left blank. Recommended Spare Parts List I - 2 OKIOFFICE 44 Service Manual, P/N 59276801...
  • Page 388 OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...

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