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Oki OKIOFFICE 1200 Field Engineering Manual

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OKIOFFICE 1200 1600
FIELD ENGINEERING MANUAL
Version 2.0
(11 June 2002)

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Summary of Contents for Oki OKIOFFICE 1200

  • Page 1 OKIOFFICE 1200 1600 FIELD ENGINEERING MANUAL Version 2.0 (11 June 2002)

  • Page 2: Safety Information

    Safety Information LED Safety Label A LED safety label is attached to the outside of the machine as shown below. Battery Precautions CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.
  • Page 3 Finland only VAROlTUS Paristo voi räjähtää, los se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä Käytetty paristo valmistajan ohjeiden mukaisesti. ALL Areas CAUTION “Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used IC Package according to the manufacturer’s instructions.” Germany only VORSICHT! ⇒”Austausch nur durch denselben oder einen vom Hersteller empfohlenen,...

  • Page 4: Table Of Contents

    Section 1 General Description 1.1 Product Description ..........................1-1 1.2 Specifications............................1-2 Section2 Machine Composition 2.1 OKIOFFICE 1200 Interconnect Block Diagram (1/2)................2-1 OKIOFFICE 1600 Interconnect Block Diagram (1/2)..................2-3 2.2 Main Control PCB ..........................2-5 2.3 Network Control Unit (NCU) PCB ......................2-7 2.4 Power Supply Unit (PSU) ........................2-8 2.5 Sensors..............................2-9...
  • Page 5 3.10.2 Printer Test ..........................3-65 3.10.3 Feeder test ..........................3-66 3.10.4 Background Level Test......................3-66 3.10.5 Set Background Level .......................3-66 3.11 Print Machine Parameters, Memory Switch and Unique Switch Settings.........3-67 3.12 Factory Functions ..........................3-67 3.12.1 Function List ..........................3-67 3.12.2 LED Test............................3-67 3.12.3 LCD Test ...........................3-68 3.12.4 Key Panel Test ..........................3-68 3.12.5 SRAM Check ..........................3-69 3.12.6 DRAM Check..........................3-69...
  • Page 6 4.12.9 Toner Smudges .........................4-12 4.13 LCD Error Messages ........................4-13 LCD error messages (Alphabetic list)....................4-13 4.14 Error Codes ............................4-18 Dialing errors ............................4-18 Reception errors ...........................4-18 Transmission errors..........................4-19 Communication Error Messages ......................4-20 4.15 Service Call Error..........................4-21 4.15.1 Call For Service .........................4-21 4.15.2 Please Call Service ........................4-21 4.16 LCD Failure............................4-24 4.17 General Power Failure........................4-24 4.18 Cleaning the Unit ..........................4-25...
  • Page 7 Packaging contents: ..........................6-22 Installation ............................6-22 Setting of the Paper Size........................6-25...

  • Page 8: Section 1 General Description

    Section 1 General Description 1.1 Product Description The OKIOFFICE 1200 and OKIOFFICE 1600 is Multi-function product with flat bed scanner and Group 3 and V.34 HDX modem facsimile machine. Documents are printed on plain paper using dry electrophotographic printing.

  • Page 9: Specifications

    1.2 Specifications Item 1200 1600 Type Desktop type Telephone network PSTN (Public Switched Telephone Network) or equivalent. Compatibility ITU-T T.4 and T.30 Coding method ITU-T-standard MH, MR, MMR and ITU-T-standard MH, MR, MMR, Murata-proprietary MSE. JBIG and Murata-proprietary MSE. Modem speed 14400, 12000, 9600, 7200, 4800 33600, 31200, 28800, 26400, and 2400 bps...
  • Page 10 Item 1200 1600 First copy time 12 seconds (using A4-sized paper 10 seconds (using A4-sized paper in 1st paper cassette) in 1st paper cassette) Printing speed 12 ppm (When loading A4-sized 16 ppm (When loading A4-sized paper from 1st paper cassette.) paper from 1st paper cassette.) Toner yield Approx.

  • Page 11: Section2 Machine Composition

    Section2 Machine Composition 2.1 OKIOFFICE 1200 Interconnect Block Diagram (1/2) OKIOFFICE 1200 Connection Diagram (1/2)

  • Page 12: Okioffice 1200 Interconnect Block Diagram (1/2)

    OKIOFFICE 1200 Interconnect Block Diagram (2/2) OKIOFFICE 1200 Connection Diagram (2/2)

  • Page 13: Okioffice 1600 Interconnect Block Diagram (1/2)

    OKIOFFICE 1600 Interconnect Block Diagram (1/2) OKIOFFICE 1600 Connection Diagram (1/2)
  • Page 14 OKIOFFICE 1600 Interconnect Block Diagram (2/2) OKIOFFICE 1600 Connection Diagram (2/2)

  • Page 15: Main Control Pcb

    CONTROL UNIT SYSTEM HIGHT VOLTAGE SDRAM +24V, +5V, GND G/A1 POWER SUPPLY Extension Memory MOTOR UNIT CONTROL ADF MOTOR IMAGE PROCESSING SDRAM LED LAMP SDRAM FBS MOTOR Lithium Battery CONNECTOR (SCANNER) PCB SDRAM OKIOFFICE 1200 Main control PCB block diagram...
  • Page 16 PCB MAIN 2 for MFX-1600 BUFFER Monitor Speaker Control MODEM PANEL PCB NCU PCB TONE LOGIC IC PCB MAIN 1 for MFX-1600 SRAM SYSTEM +24V, +5V, GND G/A2 +12V, -12V RS232C PRINTER CONTROL +24V, +12V, -12V, POWER SUPPLY FLASH ROM Battery PCB UNIT +5V, GND...

  • Page 17: Network Control Unit (Ncu) Pcb

    2.3 Network Control Unit (NCU) PCB The NCU PCB provides the connection to the telephone line. It consists of the interface circuit, dial pulse generator, ring signal detector and telephone control circuit. MODULAR NCU PCB GENERATOR TONE +24V, +5V, GND +12V, -12V NCU PCB block diagram Major components of the NCU...

  • Page 18: Power Supply Unit (Psu)

    2.4 Power Supply Unit (PSU) The power supply unit receives the input line voltage and currents it to output voltages of +5 VDC, +24 VDC, +12 VDC, and -12 VDC. The heater circuit controls output voltage to the fuser heater according to instructions received from the heater control circuit.

  • Page 19: Sensors

    2.5 Sensors 2.5.1 Sensor Locations The following illustration shows the relative positions of the machine’s sensors. TXIL COVER SW DRUM SW HOME HPES CASOP JCOP...

  • Page 20: Sensor Descriptions

    2.5.2 Sensor Descriptions The following table gives a brief description of each sensor and its function. Code Name Detects Sensor Type Document sensor 1 Presence of document in feeder Photo interrupter Document sensor 2 Leading and trailing edge of document Mechanical Switch HOME Mirror carriage home...

  • Page 21: Document Scanning Sequence

    2.6 Document Scanning Sequence 2.6.1 Document Detection When a document is placed into the document feeder, Document Sensor 1 (DS1) is activated and you will hear the short beep. 2.6.2 Document Separation Document separation is the process that allows a multi-page document to go through the scanner one page at a time.

  • Page 22: Document Discharge

    When DS2 detects the trailing edge of the document, the image signal output is turned off. The scanner continues to remain active for a few more seconds in case there is another document to follow. Separator roller Pick up roller Retard roller Feed roller A Press roller A...

  • Page 23: Recording Section

    2.7 Recording Section 2.7.1 Recording Paper Feed Path A sheet of the recording paper is separated from the remaining paper by the friction of the pickup roller. The paper is moved along the paper guide until it reaches the platen roller. Is then fed by the rotation of the platen roller.

  • Page 24: Drum Charge

    2.8.1 Drum Charge • The Drum is charged with static electricity before LED exposure. The Rotating Charge Brush is used for the charging method. • The rotating brush charging generate little ozone in the printer. Because the charge is directly given to the Drum, the Drum can be charged by low voltage.

  • Page 25: Image Transfer

    2.8.4 Image Transfer Image transfer is the process of transferring the toner image created on the Drum in the developing process to paper. We use the Roller Image Transfer instead of the Corona Image Transfer, as the image transfer method. In the Roller Image Transfer, there is little generation of ozone due to corona discharge.

  • Page 26: Fusing

    2.8.6 Fusing An Overview The toner image transferred on to the paper is securely fixed. A heat roller system is used as the fusing system. The toner image is fused by Heater Roller heated by the Heater Lamp, and securely fixed by the pressure between the Heater roller and Press rollers. A Thermistor detects and controls the Heater Roller temperature.
  • Page 27 After printing, the printer turns to standby mode. The fuser kept at low temperature. 3) Standby mode The Heater Roller maintained at approx. 100 °C. 4) Sleep mode In this mode, saving the power. OKIOFFICE 1200: Temperature ( F) ( C) Post card printing only Time...

  • Page 28: Field Service Program Modes

    Section3 Adjustment Procedures 3.1 Field Service Program Modes The fax machine feature maintenance modes for machine adjustment. Each mode is listed below along with the command used to activate the mode and a brief functional description. Note: When you press “ * ”, you will hear short beeps. However continue the operation, as it is no problem.

  • Page 29: Machine Parameter Adjustment

    3.2 Machine Parameter Adjustment 3.2.1 Setting the Machine Parameters These switches are used to program internal machine parameters. The primary back up battery maintains these settings if power is lost. 1. From standby, press Program key, *, 0. Set Parameters /Enter 2.
  • Page 30 Machine Parameter A:0 Initial Switch Adjust Usage/Comments Setting Country code The country code enables the ROM to output the correct programming information for the respective country. Machine Parameter A:1 Initial Switch Adjust Usage/Comments Setting Non-loaded cable compensation (TX) 0 db 4 db 8 db 12 db...
  • Page 31 Machine Parameter A:2 … DTMF output level attenuation Switch 3 Switch 2 Switch 1 Switch 0 Attenuation 0 dB ← 1 dB Initial setting for OKIOFFICE 1200 2 dB 3 dB 4 dB 5 dB 6 dB 7 dB ← 8 dB...
  • Page 32 00110100 (OKIOFFICE 1600)   Each setting changes 52.514 mm ← Initial setting by 0.847mm. 00111110 (OKIOFFICE 1200)   Note: These values are   factory set and should not be 11111110 215.138 mm adjusted unless instructed by 11111111 215.985 mm...
  • Page 33 Leading edge document Switch 76543210 Settings margin adjustment 0.00 mm ← Initial setting (FBS) 00000000 00000001 0.847 mm (OKIOFFICE 1200) Adjusts the leading edge 00000010 1.694 mm   margin from standby position   of the mirror carriage to the 10.164 mm ←...
  • Page 34   carriage passes End Sensor 34.727 mm ← Initial setting to the start of the scanning 00101001 position. (OKIOFFICE 1200)   36.421 mm ← Initial setting 00101011 Each setting changes by 0.847mm. (OKIOFFICE 1600) ...
  • Page 35 Machine Parameter B:6 Initial Switch Adjust Usage/Comments Setting FBS scanner registration Switch 76543210 Settings adjustment (Vertical) (Only OKIOFFICE 1200) 01111111 255.0 mm Maximum Adjusts the end point to scan 00000110 6.0 mm the document. 00000101 5.0 mm The plus setting increase the 00000100 4.0 mm...
  • Page 36 Machine Parameter B:7 Initial Switch Adjust Usage/Comments Setting Leading edge document Switch 76543210 Settings margin adjustment (ADF) 10111111 -5.3361 mm 10111110 -5.2514 mm   Adjusts the leading edge   margin from Document Sensor 2 (DS2) to the start of 10000010 -0.1694 mm the scanning position.
  • Page 37 Initial Switch Adjust Usage/Comments Setting Slice level adjustment of Switch 76543210 “Light” in the mode without 00000000 Darkest setting Grayscale. 00000001 (Only for OKIOFFICE 1200) 00000010 Initial setting 00000011 00000100 Lightest setting Machine Parameter D:1 Initial Switch Adjust Usage/Comments Setting...
  • Page 38 Initial Switch Adjust Usage/Comments Setting Slice level adjustment of Switch 76543210 “Dark” in the mode without 00000000 Darkest setting Grayscale. 00000001 (Only for OKIOFFICE 1200) 00000010 Initial setting 00000011 00000100 Lightest setting Machine Parameter D:5 Initial Switch Adjust Usage/Comments Setting...
  • Page 39 Machine Parameter D:8 Initial Switch Adjust Usage/Comments Setting Slice level adjustment of Switch 76543210 “Darker” in Grayscale. 00000000 Darkest setting (Only for OKIOFFICE 1200) 00000001 00000010 Initial setting 00000011 00000100 Lightest setting Machine Parameter D:9 Initial Switch Adjust Usage/Comments Setting...
  • Page 40 Machine Parameter F:1 Initial Switch Adjust Usage/Comments Setting Adjustment of the scanning Switch 76543210 Settings stretching and squeezing for ADF. (Vertical) 01111111 12.7 % Maximum The plus setting stretch the 00100000 3.2 % image data and the minus setting squeeze it. 00011000 2.4 % Each setting changes by...
  • Page 41 Machine Parameter G:6 Initial Switch Adjust Usage/Comments Setting Scanning contrast adjustment Switch 76543210 for transmission 00111111 Darkest setting (Only for OKIOFFICE 1600) 00000010 00000001 00000000 Initial setting 11111111 11111110 11000000 Lightest setting Machine Parameter G:7 Initial Switch Adjust Usage/Comments Setting Scanning contrast adjustment Switch 76543210 for copying...
  • Page 42 Machine Parameter H:1 Initial Switch Adjust Usage/Comments Setting Scanning slice level Switch 76543210 adjustment in Fine resolution 00111111 Darkest setting for transmission (Only for OKIOFFICE 1600) 00000010 00000001 00000000 Initial setting 11111111 11111110 11000000 Lightest setting Machine Parameter H:2 Initial Switch Adjust Usage/Comments...
  • Page 43 Machine Parameter J:0 Initial Switch Adjust Usage/Comments Setting Printer registration Switch 76543210 Settings adjustment (Vertical) at the 01111111 5.3 mm Maximum cassette. Adjusts the start point to 00000011 0.13 mm print. 00000010 0.08 mm The plus setting increase the 00000001 0.042 mm top margin and the minus 00000000...
  • Page 44 Machine Parameter J:3 Initial Switch Adjust Usage/Comments Setting Printer registration Switch 76543210 Settings adjustment (Horizontal) at the 00001000 4.0 mm Maximum optional second cassette. Adjusts the start point to 00000010 1.0 mm print. 00000001 0.5 mm The plus setting increase the 00000000 0.0 mm left margin and the minus...

  • Page 45: Memory Switch Adjustment

    3.3 Memory Switch Adjustment 3.3.1 Setting the Memory Switches These switches are used to program internal machine parameters. The primary back up battery maintains these settings if power is lost. 1. From standby, press Program key, *, 1. Set Memory Switch /Enter 2.
  • Page 46 Memory Switch A:0 - Dialer Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only DIS detect time after dialing Sets the time DIS signal is detected after dialing a 0: 80 sec number.
  • Page 47 Memory Switch A:5 - Dialer Initial Switch Adjust Usage/Comments Setting Factory use only Ring signal detect time Set the time that an incoming ring will not be detected after hanging up. (Fax/Tel Ready mode only.) Switch 6 5 4 0 0 0 100 ms 0 0 1 200 ms...
  • Page 48 Maximum transmit speed (kbps) 2.4 4.8 7.2 9.6 12 14.4 16.8 19.2 21.6 24 26.4 28.8 31.2 33.6 ↑ ↑ Initial setting for OKIOFFICE 1200 Initial setting for OKIOFFICE 1600 Note: The maximum speed for OKIOFFICE 1200 is 14.4 kbps. 3-21...
  • Page 49 DCS and TCF signals using this switch. 75 ms 300 ms 450 ms 600 ms Switch 5 Switch 4 Output attenuation See table below Memory Switch B:1…Output attenuation Switch ↑ ↑ Initial setting for OKIOFFICE 1600 Initial setting for OKIOFFICE 1200 3-22...
  • Page 50 Memory Switch B:2 - Transmission Initial Switch Adjust Usage/Comments Setting Data signaling rate (DCS) Determines communication protocol. 0: V.17 1: V.33 Forced received print when Will force a remote OKIOFFICE machine with transmitting from memory memory receive capabilities to print directly. This 0: No switch will prevent a memory overflow error at the 1: Yes...
  • Page 51 Memory Switch B:5 - Transmission Initial Switch Adjust Usage/Comments Setting Program individual autodialer Allows individual setting of memory switches B:0 as attributes attribute 1, B:1 as attribute 2, B:2 as attribute 3 and 0: No B:3 as attribute 4 when one-touch and speed dial 1: Yes locations are programmed.
  • Page 52 2.4 4.8 7.2 9.6 12 14.4 16.8 19.2 21.6 24 26.4 28.8 31.2 33.6 ↑ ↑ Initial setting for OKIOFFICE 1200 Initial setting for OKIOFFICE 1600 Note: The maximum speed for OKIOFFICE 1200 is 14.4 kbps. Memory Switch C:1 - Reception Initial Switch Adjust...
  • Page 53 1 1 1 0 1 1 1 1 Factory use only Group delay compensation As if two exchangers are selected to communicate (Only for OKIOFFICE 1200) each other, compensate the group delay. 0: No 1: Yes Digital cable equalizer When set to “1”, become efficient for the line short 0: Free break, but become weak for the line noise.
  • Page 54 Memory Switch D:2 - Reception Initial Switch Adjust Usage/Comments Setting EYE-Q slice level Setting this bit to “1” enables memory switch D:2, 0: Disable bits 0-3 and memory switch D:1, bits 0-7 and 1: Enable enables EYE-Q check adjustment. Check EYE-Q Set at 0: Line condition status (EYE-Q) is not 0: No checked after checking TCF.
  • Page 55 Memory Switch E:0 - Scanner Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only Factory use only Factory use only Factory use only Document TX length limit Setting to unlimited will override document jam 0: 3.6 meters sensing.
  • Page 56 Memory Switch G:1 - Remote reception Initial Switch Adjust Usage/Comments Setting Off-hook / on-hook detect Sets the time interval between the off-hook/on-hook time (remote reception) condition for remote reception. The total time of this time and the time specified in G:6 will be the actual time.
  • Page 57 Memory Switch G:2 - Remote reception Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only CNG detect in Ans/Fax ready When set to “1”, the machine detects the CNG 0: No signal in Ans/Fax ready. 1: Yes Switch-hook time If the switch hook is quickly depressed and...
  • Page 58 Memory Switch G:3 - Remote reception and TAD interface Initial Switch Adjust Usage/Comments Setting Adjust silent detection time This switch adjusts the length of silence required for silent detection activation. Switch 7 6 5 4 Time 0 0 0 0 0 sec 0 0 0 1 1 sec...
  • Page 59 Memory Switch G:4 - Remote reception and TAD interface Initial Switch Adjust Usage/Comments Setting CNG detect period after TAD Sets the period during which CNG is detected after begins recording ICM the TAD begins recording incoming message. Switch 7 6 5 4 Time 0 0 0 0 0 sec...
  • Page 60 Memory Switch G:5 - Remote reception Initial Switch Adjust Usage/Comments Setting Adjust the detect time for Increase/decrease the time specified in this switch regarding as the CI signal. from the standard detect time. Determine it in G:5 bit 3 whether increase or decrease. Switch 7 6 5 4 Time 0 0 0 1...
  • Page 61 Memory Switch H:0 - Operation Initial Switch Adjust Usage/Comments Setting Display error line The number of error lines contained in the received 0: No data will be shown in the LCD. 1: Yes Total line monitor Allows fax communication to be heard through the 0: No monitor speaker.

  • Page 62: Clear Programmed Data / User Settings

    Memory Switch H:2 - Operation Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only Factory use only Print the transmission time on Determines if printing the communicating duration (in minutes and seconds) on the confirmation report 0: No (RCR).

  • Page 63: All Ram Clear

    3.5 All RAM Clear The All RAM Clear setting will erase all user programmed information, all documents in memory, and reset the memory switches and machine parameters to factory defaults. This feature may also be used to try and clear a machine malfunction or lock up. If possible, when the All RAM Clear is used to reset a malfunction or lock up, it is advisable to print the machine settings, one- touch and speed dial listings to help in reprogramming this information.
  • Page 64 2.4 4.8 7.2 9.6 12 14.4 16.8 19.2 21.6 24 26.4 28.8 31.2 33.6 ↑ ↑ Initial setting for OKIOFFICE 1200 Initial setting for OKIOFFICE 1600 Note: The maximum speed for OKIOFFICE 1200 is 14.4 kbps. Attribute 2 - Individual Autodialer Setting (Equivalent to Memory Switch B:1) Initial Switch...
  • Page 65 Output attenuation when individual autodialer attributes are set. Switch ↑ ↑ Initial setting for OKIOFFICE 1600 Initial setting for OKIOFFICE-1200 Attribute 3 - Individual Autodialer Setting (Equivalent to Memory Switch B:2) Initial Switch Adjust Usage/Comments Setting Data signaling rate (DCS) Determines communication protocol.
  • Page 66 Attribute 4 - Individual Autodialer Setting (Equivalent to Memory Switch B:3) Initial Switch Adjust Usage/Comments Setting ANSam detection During the V8 handshake, if some noise disturbs (Only for OKIOFFICE 1600) the handshake and an error occurs, set to “1”. 0: Yes 1: No V.34 transmission Individual setting for V.34 transmission.

  • Page 67: Unique Switch Adjustment

    3.7 Unique Switch Adjustment 3.7.1 Setting the Unique Switches These switches are used to program internal machine parameters. The primary back up battery maintains these settings if power is lost. 1. From standby, press Program key, *, 4. Set Uniq Switch /Enter 2.

  • Page 68: Unique Switch A:0 - Dialer

    Unique Switch a:0 — Dialer Initial Switch Adjust Usage/Comments Setting Factory use only Congestion tone detection Setting this switch to “0”, ignores telephone line 0: No congestion tones. 1: Yes Ring back tone wait time Sets the time until the ring back tone begins after (seconds) answering an incoming call in the Fax/Tel Ready or 3.0 3.3 3.6 3.9...
  • Page 69 Unique Switch b:6 - Transmission Initial Switch Adjust Usage/Comments Setting Available *, # and space Determines if checking the * (asterisk), # (sharp) upon F-code SUB/SEP and space upon F-code SUB/SEP registration. registration 0: No 1: Yes Available *, # and space Determines if checking the * (asterisk), # (sharp) upon F-code communicating and space upon F-code communicating.
  • Page 70 Unique Switch b:8 - Transmission Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only Factory use only Factory use only Factory use only Transmission when disable to Determine the action when disable to detect first detect first NSF in feeder NSF in feeder transmission.
  • Page 71 Unique Switch c:1 - Reception Initial Switch Adjust Usage/Comments Setting T1 timer adjustment When the unit switches to fax by on-hook transfer, the unit will seize the telephone line and attempt to handshake. Switch 7 5 6 4 Settings 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1...
  • Page 72 Unique Switch c:2 - Reception Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only JBIG reception Determines how documents from the remote fax are (Only for OKIOFFICE 1600) received. 0: No 1: Yes Receive the junk fax When the block junk fax feature was set to Mode 2 0: Yes...
  • Page 73 Unique Switch d:0 - Modem Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only 3429 baud symbol rate when If the error frame often occurs because of the communicating at V.34 symbol rate is too high, setting this switch to “1” (Only for OKIOFFICE 1600) mask that symbol rate and keep down the 0: No...
  • Page 74 Unique Switch d:2 - Modem Initial Switch Adjust Usage/Comments Setting V8 handshake in feeder Tx Determine if the handshaking will be done with V.8 (Only for OKIOFFICE 1600) recommendation in feeder transmission. 0: No 1: Yes Factory use only Factory use only Factory use only Factory use only Factory use only...
  • Page 75 Unique Switch d:5 Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only DTMF output level See table below. attenuation for second phone line (Only for OKIOFFICE 1600) Unique Switch d:5 … DTMF output level attenuation --- (Factory default is -10 dB for OKIOFFICE 1600) Switch 3 Switch 2 Switch 1...
  • Page 76 When set to “0”, Hyper fine resolution (16 × 15.4 Hyper fine resolution dot/mm) changes into Super fine resolution (8 × (Only for OKIOFFICE 1600) 0: No 15.4 dot/mm). 1: Yes Note: Initial setting for OKIOFFICE 1200 is “0”. Unique Switch e:1 --- Factory use only 3-49...
  • Page 77 Unique Switch e:2 - Scanner Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Note: Initial setting for OKIOFFICE 1600 is “0”. Continuous lighting of the Setting at “1”, the lamp continues to light when the lamp for CCD adjustment setting of Background Level.
  • Page 78 Unique Switch e:5 - Scanner Initial Switch Adjust Usage/Comments Setting Leading edge document Switch 7654 Settings margin adjustment (ADF) (Only for OKIOFFICE 1600) 0111 0.5929 mm Adjusts the leading edge margin from the mirror 0010 0.1694 mm carriage passes End Sensor 0001 0.0847 mm to the start of the scanning...
  • Page 79 Unique Switch e:7 - Scanner Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Right edge document margin Switch 5 4 3 2 1 0 Settings adjustment upon scanning 0 0 0 0 0 0 0 mm using FBS 0 0 0 0 0 1 1 mm 0 0 0 0 1 0...
  • Page 80 Unique Switch e:9 - Scanner Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Trailing edge document Switch 5 4 3 2 1 0 Settings 0 mm ← Initial setting margin adjustment upon 0 0 0 0 0 0 scanning using FBS 0 0 0 0 0 1 1 mm...
  • Page 81 Unique Switch f:0 - Printer Initial Switch Adjust Usage/Comments Setting Factory use only Smoothes the data scanned in each resolution mode. Factory use only Factory use only Factory use only Smoothing in H-Fine resolution in receive mode (Only for OKIOFFICE 1600) 0: No 1: Yes Smoothing in S-Fine...
  • Page 82 Unique Switch f:2 - Printer Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Initial setting is “000000” and 28.65 µsec. If you LED print head exposure time adjustment for lists, test want to change the exposure time, set this switch patterns and PCL printing within the following range.
  • Page 83 Unique Switch f:6 - Printer Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Initial setting is “000000” and 28.65 µsec. If you LED print head exposure time adjustment for copies want to change the exposure time, set this switch and receiving documents within the following range.
  • Page 84 Use numeric keypad on the Determines if using the numeric keypad on the fax using second phone control panel of the fax using the second phone. (Only for OKIOFFICE 1200) 0: No 1: Yes Manual transmit/receive Determines if transmitting or receiving manually using Start key after off-hook using Start key after off-hook of the second phone.
  • Page 85 Unique Switch g:8 ∼ ∼ ∼ ∼ g:9 --- Factory use only Unique Switch h:0 - Operation Initial Switch Adjust Usage/Comments Setting First Dialing symbol when When set to “0”, “−” will appear first when pressing pressing Dialing Options key Dialing Options key.
  • Page 86 Unique Switch h:3 - Operation Initial Switch Adjust Usage/Comments Setting Priority of consumable order When the drum cartridge has reached its design life, sheet printing or the toner cartridge is empty, the machine prints a consumable order sheet (see unique switch H:3). 1: Print immediately When this switch is set at “0”, the machine does not 0: Print after the current...
  • Page 87 Unique Switch i:7 - Miscellaneous Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only Factory use only Factory use only Print “year” on Activity journal and TCR 0: No 1: Yes Determines if printing the “• •”, followed by the last Print last 25-digit of remote number on TCR 25-digit of remote number on TCR, when the...
  • Page 88 Unique Switch J:5 - Miscellaneous Initial Switch Adjust Usage/Comments Setting Factory use only Factory use only Factory use only Factory use only Factory use only Priority of Printing the Check When set to “1”, A5(Portrait) sized paper will be message on A5(Portrait) given priority to print the check message.

  • Page 89: Printer Maintenance Mode

    3.8 Printer maintenance mode In case of followings, use this mode. • When replaced the Fuser unit or Transfer roller. • When “Please Call Service” message appear in the LCD, access this mode to determine the cause of the “Please Call Service” error message. When you replace the Fuser unit or Transfer roller, you must set the count of replacement manually To access the printer maintenance modes:...

  • Page 90: Print Program Mode List

    3. The kind of printer error will be displayed. If happens two or more troubles, the number of troubles is displayed on the right upper of the LCD. For example, when “Heater error” and “Drum Fuse Error” has occurred, the LCD shows 2. Service Call How many troubles Heater Error...

  • Page 91: Life Monitor

    3.10.1 Life Monitor The life monitor displays the current software version, the total number of pages scanned, printed, and transmitted, the number of drums replaced and the total page count on the current drum. Note: The All RAM Clear setting does not clear the life monitor. To clear, see below. 1.

  • Page 92: Printer Test

    3.10.2 Printer Test The Printer Test mode offers seven different test patterns as shown below. Pattern A Pattern B Pattern C Pattern D Pattern E Pattern F Pattern G 1. Press Program key, *, 9, , then press ENTER. Pattern 2.

  • Page 93: Feeder Test

    3.10.3 Feeder test The feeder test discharges all documents in the automatic document feeder at a constant speed and displays the document total in the LCD. 1. Load test documents into the automatic document feeder. 2. Press Program key, *, 9, two times, then press ENTER.

  • Page 94: Print Machine Parameters, Memory Switch And Unique Switch Settings

    3.11 Print Machine Parameters, Memory Switch and Unique Switch Settings This function instructs the unit to print a list of the machine parameter, memory switch and unique switch settings. The list shows the default and current settings for each. After printing, the unit returns to standby. 1.

  • Page 95: Lcd Test

    3.12.3 LCD Test This mode displays two test patterns in LCD. 1. Press Program key, *, B(02). Then press One-touch C. LCD Test Pressing START, all dots turn on. Next pressing START, all dots turn off. Finally pressing START, the alphabetical characters are shown in the LCD. ABCDEFGHIJKLMNOPQRST UVWXYZabcdefghijklmn 2.

  • Page 96: Sram Check

    Check area All DRAMs The DRAM on the Main PCB The 8MB Optional Memory PCB (OKIOFFICE 1200) The first 8MB DRAM on the 24MB Optional Memory PCB (1600 only) The second 8MB DRAM on the 24MB Optional Memory PCB (1600 only) The third 8MB DRAM on the 24MB Optional Memory PCB (1600 only) Then press START.

  • Page 97: Rtc(Real Time Clock) Test

    The machine starts checking and the result(OK/NG) will be shown in the display. For example, if the check area is “0” and one additional memory, you will see: DRAM Check OK:12 3. Press STOP to exit the test mode. 3.12.7 RTC(real time clock) Test This test mode is not applicable to field service of this machine.

  • Page 98: Line Tests

    3.13 Line Tests This mode offers several internal tests and ability to monitor certain unit output functions. Included are relay tests, modem signal output monitoring, and DTMF output monitoring. 1. Press Program key, *, C(03) to enter the test mode. The tests are contained within three main menus.

  • Page 99: Tonal Signal Test

    3.13.2 Tonal Signal Test The tonal signal test permits the unit’s output tones to be monitored. Note: To monitor the tones, an external monitoring device must be connected to the telephone line jack. 1. Press Program key, *, C (03). Board Number? 2.
  • Page 100 12000 bps 7200 bps 14400 bps 9600 bps 16800 bps 12000 bps 19200 bps 14400 bps 21600 bps 16800 bps 2800 baud 4800 bps 19200 bps 7200 bps 21600 bps 9600 bps 24000 bps 12000 bps 26400 bps 14400 bps 28800 bps 16800 bps 31200 bps...

  • Page 101: Dtmf Output Test

    7. To select another tonal signal, repeat steps 4-6. Otherwise, proceed to step 8. 8. To exit the tonal signal test mode, press STOP under not tests. 9. Press STOP again to return to standby mode. 3.13.3 DTMF Output Test The DTMF output test permits the unit’s DTMF tones to be monitored.

  • Page 102: Mirror Carriage Transfer Mode

    3.14 Mirror Carriage Transfer Mode Important: The fax machine is shipped with mirror carriage locking plate for protecting the machine’s mirror carriage during shipping. When installing the fax, loosen the screw which secures the mirror carriage locking plate, and then slide the plate. After unlocking the mirror carriage, secure the mirror carriage locking plate mounting screw.

  • Page 103: Print Consumable Order Sheet

    To enter spaces, punctuation and symbols, use the characters shown on the one-touch keypad you want. Note: If you make a mistake, press CANCEL to erase to the left. To change just one character, press to move left, or to move right. Press CANCEL to erase the character. Then re-enter the character correctly.

  • Page 104: Dram Clear

    2. Press Reset Order Sheet / /Enter 3. Press ENTER. Reset Order Sheet Check Enter/Cancel 4. To clear the information of consumable order sheet, press ENTER. To finish the operation without clearing, press CANCEL. 3.16 DRAM Clear Note: Perform a DRAM clear whenever a memory upgrade is installed to the unit or the DRAM is replaced.

  • Page 105: Set Service Code

    3.19 Set Service Code This is the code which, one can protect the life monitor clear operation. If it is not necessary to protect to the life monitor clear operation, abort this operation without entering the service code. 1. Press Program key, *, J (10). Set Service Code Old Passcode :****...

  • Page 106: Jp1, Jp2 Battery Backup

    9. Enter previous value of the fuser replaced count, then press ENTER. Fuser Life 0000000000 10. Enter previous value of the fuser life, then press ENTER. Transfer Rplcd Count 0000000000 11. Enter previous value of the transfer replaced count, then press ENTER. Transfer Life 0000000000 12.

  • Page 107: Update The Software

    3.22 Update the software Here’s instruction to update the software version of the Flash ROM. Important: To update the software, it needs the flash ROM writer and three of the latest versions of EP- ROMs — ROM0, ROM1 and ROM2. 1.

  • Page 108: Section4 Troubleshooting Procedures

    Section4 Troubleshooting Procedures 4.1 Troubleshooting Outline Before troubleshooting a unit check the following: • Is the power cord correctly connected to the machine? • Is the telephone handset and the telephone line cord connected correctly? • Is there paper in the paper cassette? •...

  • Page 109: Recording Paper Jam

    4.2 Recording Paper Jam Symptom: Recording paper did not exit paper cassette properly or jam occurred in print area. Suggested corrective action: 1. Verify that the recording paper conforms to the type specified for use in the machine and that has not been damaged or exposed to moisture.

  • Page 110: Document Feeder Multi-Feeding Or Skew

    4.4 Document Feeder Multi-feeding or Skew Symptom: Two or more pages of a multi-page document are fed at once. The document is fed on the skew. Slight skewing may sometimes occur. Suggested corrective action: 1. Verify that the original documents conform to the specifications designed for use in the machine and they are not damaged in any way.

  • Page 111: Cannot Transmit

    4.8 Cannot transmit Symptom: The unit will not transmit Suggested corrective action: 1. Verify the telephone line cord is properly installed and plugged into the correct type of wall jack. 2. Check for dial tone at the unit and wall jack. If no dial tone is present at the unit, check the NCU PCB.

  • Page 112: Clearing Jammed Paper

    4.11 Clearing Jammed Paper If the original document jams 1. If an original document jams in the ADF while scanning the document into the memory for faxing or copying, the LCD will show: Document Jam ContStor Enter/Cancl If you do wish to continue the operation, press ENTER and proceed to step 2. To abort the operation, press CANCEL.

  • Page 113: To Remove The Document

    To remove the document: 1. Open the scanner cover. 2. Lift the original document from the machine. Note: If you cannot remove the original document, open the inner cover as shown at right, then remove the document. 3. Gently close the scanner cover, making sure both sides are snapped down securely. Note: If the original document has become wrinkled or torn, do not re-send it.

  • Page 114: If A Printout Jams Inside Your Machine

    If a printout jams inside your machine To clear a printout jammed inside your machine: Important: Gently close the top cover so that you don’t catch your hands, possibly injuring them. 1. Open the top cover. 2. Open the printer cover. 3.
  • Page 115 4. Remove the jammed paper. Important: The fuser unit becomes very hot. Do not touch the fuser unit when you are removing a paper jam. Note: Avoid getting “unfixed” toner on your hands and clothes. Open the side cover. Pulling up the jam release lever to remove the jammed paper. 5.

  • Page 116: The Image Quality Problems

    4.12. The Image Quality Problems The following provides guidelines for troubleshooting the printer engine and actions to be taken. Before removing any portions of the machine or making any internal adjustments, be sure power to the unit is OFF. Suggested corrective actions should be performed in order as listed. Most conditions can be corrected by performing routine preventative maintenance steps.

  • Page 117: Printout Too Light

    4.12.3 Printout too light Symptom: Printed image is faint or does not print solid. ABCDE Poor development • Remove the toner cartridge and shake it a few times to redistribute the ABCDE toner inside. If the problem persists, replace the toner cartridge. ABCDE •...

  • Page 118: Uneven Print Density

    4.12.6 Uneven print density Symptom: Image graduates from dark to light across page. Poor development • Remove the toner cartridge and shake it a few times to redistribute the toner inside. If the problem persists, replace the toner cartridge. • Replace the High Voltage Unit. •...

  • Page 119: White (Black) Line

    4.12.8 White (Black) Line Symptom: White or black strip appears vertically through image. Poor development ABCDE • Replace the Toner Cartridge. Defective Drum ABCDE • Replace the Drum Cartridge. ABCDE Improper charging • Replace the Drum Cartridge. ABCDE Improper fusing ABCDE •...

  • Page 120: Lcd Error Messages

    4.13 LCD Error Messages Your fax machine’s LCD messages can help you spot problems. LCD error messages (Alphabetic list) What you see on the LCD What it means/What to do All Commands In Use Your fax machine has all of its 99 possible delayed commands (automatic redialing counts as one) stored in memory and cannot accept another.
  • Page 121 What you see on the LCD What it means/What to do Drum Near End Your drum will need to be replaced soon. Enter No. (0-32) You tried to enter a call group number greater than 32. Your machine can maintain 32 call groups, numbered 1-32 (call group 0 covers all the groups).
  • Page 122 What you see on the LCD What it means/What to do Mirror Carriage Error The mirror carriage of your machine has become inoperable. Mirror Locked The transport mode is not turned off. Turn off the transport mode. No Command You pressed REVIEW COMMANDS to review upcoming commands, but your fax machine had none stored.
  • Page 123 What you see on the LCD What it means/What to do Please Replace Drum Your drum cartridge has reached the limit of its design life. Your machine cannot print until the drum cartridge is replaced. Please replace the drum cartridge. Please Replace Toner Your toner cartridge is empty.
  • Page 124 What you see on the LCD What it means/What to do Select Paper Size You tried to make a copy in the following conditions: • Paper size selection is set to “Auto”. • The bypass tray has the paper other than A4, A5 or F4. •...

  • Page 125: Error Codes

    4.14 Error Codes If an error occurs during a communication, a check message will be printed. The following provides an explanation of the information found on check messages. • A possible solution to the problem • The date and time of the attempted communication •...

  • Page 126: Transmission Errors

    R.4.4 The receiving fax machine has reached its memory capacity. R.5.1 DCN was received instead of RR during ECM communication. R.5.2 Line noise or other problems prevented ECM reception. R.8.4 A compatibility error occurred. R.8.10 Line noise or other problems prevented line probing. R.8.11 The fax machine timed out while waiting for the retrain signal.

  • Page 127: Communication Error Messages

    Communication Error Messages The error messages on Check Message printouts indicate the following: Here’s a brief summary: Error Message Possible Meanings • Remote machine malfunctioned Check condition of remote fax. • No handshake signals from remote machine • Wrong phone number reached •...

  • Page 128: Service Call Error

    4.15 Service Call Error When certain machine problems occur these message will appear in the LCD. 4.15.1 Call For Service Symptom: “Call For Service” is in the LCD. Suggested corrective action: 1. Verify the lamp turns on when the book cover open and close. 2.
  • Page 129 The errors messages and an explanation of each are outlined below. Heater Error Symptom: fuser heater malfunction. Suggested corrective action: 1. Check the connectors from the power supply to the main control PCB and to the fuser unit. 2. Check the heater lamp. If it comes on, see step 3; if it does not, see step 5. 3.
  • Page 130 RX Motor Error Symptom: RX motor malfunction Suggested corrective action: 1. Verify the RX motor rotates when the power is on. 2. Check the connection between RX motor and the Connect Printer PCB (P1308). (See page 2-1.) 3. Replace the RX motor if it doesn’t rotate. 4.

  • Page 131: Lcd Failure

    4.16 LCD Failure Symptom: No display in the LCD. Suggested corrective action: 1. Verify that the power cord is correctly connected and the power switch is ON. 2. Check for a blown fuse or open circuit on the unit’s internal power supply. 3.

  • Page 132: Cleaning The Unit

    4.18 Cleaning the Unit Use a mild cleaning solution on a lint-free cloth to wipe the machine’s cover, handset and paper cassette tray. Never spray cleaner directly onto the fax machine as the spray could damage components inside the fax. Curing frequent jams in the ADF If you’re having trouble with getting your original documents to feed properly, try this procedure: 1.

  • Page 133: Cleaning The Fbs Glass, Contact Glass And White Pad

    Cleaning the FBS glass, Contact glass and white pad 1. Open the platen cover. 2. Get a soft, lint-free cloth and moisten it with isopropyl alcohol. Important: Make sure the cloth doesn’t have any rough areas. Otherwise, it could scratch the glass surface of the FBS.
  • Page 134 Section5 Maintenance & Adjustment 5.1 MAINTENANCE SCHEDULE .......................5-2 5.2 RE/DISASSEMBLE ..........................5-3 5.2.1 Covers ............................5-5 5.2.2 PCBs ............................5-13 5.2.3 Sensors ............................5-24 5.2.4 Scanning section .........................5-25 5.2.5 Printer section..........................5-37 5.3 ADJUSTMENT............................5-49 5.3.1 Adjustment of Retard roller pressure...................5-49...

  • Page 135: Maintenance Schedule

    5.1 Maintenance schedule Scanner Section Maintenance Cycle (pages) Reference Parts Name Page Clean Replace Separator roller * — 5-26 Retard roller * — 5-27 Other rollers * — — 5-28 to 5-31 Contact glass & FBS glass * Clean if dirty —...

  • Page 136: Re/Disassemble

    5.2 Re/Disassemble Before disassembling, disconnect the power cord and line cord. 5.2.1 COVERS............................5-5 FRONT COVER .............................5-6 REAR COVER............................5-6 TOP FRONT COVER / TOP RIGHT COVER / TOP LEFT COVER ............5-7 TOP REAR COVER ..........................5-7 HARNESS HOLDER ..........................5-7 TX COVER .............................5-8 TX SIDE COVER F..........................5-8 TX SIDE COVER R ..........................5-9 EXIT TRAY .............................5-9...
  • Page 137 FBS MOTOR ............................5-33 SCANNER ASSEMBLY........................5-34 KNOB ..............................5-36 5.2.5 PRINTER SECTION ........................5-37 COVER SWITCH..........................5-37 CASOP ..............................5-37 SOLENOID ............................5-38 RX MOTOR ............................5-38 DRIVE GEAR ASSEMBLY ........................5-39 TOS ..............................5-39 PICK UP ROLLER MP .........................5-40 HPES..............................5-40 IMAGE TRANSFER ROLLER ......................5-41 FIXING UNIT ............................5-41 PDS / Thermistor ..........................5-42 EXIT ROLLER P...........................5-42 PES ..............................5-43 PAPER PICK UP ROLLER........................5-43...

  • Page 138: Covers

    5.2.1 Covers Tx side cover F Platen cover Bypass tray One-touch cover Right cover Panel cover Jam access cover Front cover Cover opener Harness holder Top rear cover Top left cover Contact glass Top right cover Top front cover Pane Tx side cover R Tx cover Rx exit cover...

  • Page 139: Front Cover

    FRONT COVER 1. Open the top cover. 2. Remove the two front cover mounting screw. 3. Remove the FRONT COVER. REAR COVER 1. Open the top cover. 2. Remove the five rear cover mounting screws. 3. Disconnect the speaker connector and remove the REAR COVER.
  • Page 140 TOP FRONT COVER / TOP RIGHT COVER / TOP LEFT COVER 1. Open the platen cover. 2. Remove the screw covers. 3. Remove the three top front cover mounting screws, and then remove the TOP FRONT COVER. 4. Remove the two top right cover mounting screws, and then remove the TOP RIGHT COVER. 5.

  • Page 141: Tx Cover

    TX COVER 1. Open the scanner cover. 2. Remove the four Tx cover mounting screws. 3. Remove the TX COVER. Tx cover TX SIDE COVER F 1. Open the platen cover. 2. Remove the Tx side cover F mounting screw. 3.

  • Page 142: Exit Tray

    TX SIDE COVER R 1. Open the platen cover. 2. Remove the three Tx side cover R mounting screws. 3. Remove the TX SIDE COVER R. Tx side cover R EXIT TRAY 1. Open the cassette. 2. Remove the three exit tray mounting screws. 3.
  • Page 143 OPTION COVER A 1. Remove the option cover A mounting screw. 2. Remove the OPTION COVER A. Option cover A RX EXIT COVER 1. Remove the EXIT TRAY. 2. Remove the TOP LEFT COVER. 3. Remove the OPTION COVER A. 4.

  • Page 144: Right Cover

    RIGHT COVER 1. Remove the FRONT COVER. 2. Remove the REAR COVER. 3. Remove the two right cover mounting screws. 4. Slide the line cover and disconnect the harnesses of the TOS sensor and the HPES sensor. 5. Then remove the RIGHT COVER. Right cover Line cover COVER OPENER...

  • Page 145: Panel Cover

    PANEL COVER Perform the procedure of step 1 through 2 in “PANEL A, B, C and LCD,” page 5-18. PLATEN COVER Perform the procedure of step 1 through 5 in “CONNECT SCANNER PCB,” page 5-19. BOTTOM CORNER COVER Perform the procedure of step 1 through 2 in “CONNECT SCANNER PCB,” page 5-19. BYPASS TRAY Refer to page 5-48.

  • Page 146: Pcbs

    5.2.2 PCBs CCD PCB Connect ADF PCB Inverter PCB Connect scanner PCB Battery PCB Main control PCB Panel B PCB Connect printer PCB Panel A PCB Panel C PCB HVPS 5-13...

  • Page 147: Shield Plate

    MAIN CONTROL PCB Note: Before changing the main control PCB, back up the user data (such as one-touch dial numbers). Confirm the JP1 and JP2 on the main control PCB are set to ON. 1. Remove the rear cover. 2. Remove four shield plate mounting screws. 3.
  • Page 148 NCU PCB 1. Remove the EXIT TRAY. 2. Remove the two NCU PCB mounting screws and F.G. wire mounting screws. 3. Disconnect all connectors on the NCU PCB. 4. Remove the NCU PCB. NCU PCB MODULAR PCB 1. Remove the REAR COVER. 2.
  • Page 149 POWER SUPPLY UNIT (PSU) 1. Remove the REAR COVER. 2. Remove two fan motor mounting screws, and then remove the FAN MOTOR. 3. Remove the duct mounting screw, and then remove the DUCT. Duct Fan motor 4. Disconnect two connectors on the PSU. 5.
  • Page 150 HIGH VOLTAGE POWER SUPPLY (HVPS) 1. Open the top cover. 2. Remove the FRONT COVER. 3. Disconnect the connector on the HVPS and remove five HVPS mounting screws, then remove the HVPS. High voltage power supply CONNECT PRINTER PCB 1. Remove the REAR COVER. 2.

  • Page 151: Panel A, B, C And Lcd

    PANEL A, B, C and LCD 1. Remove the TOP FRONT COVER. 2. Remove three panel cover mounting screws, and then remove the PANEL COVER. Panel cover 3. Disconnect two connectors between PANEL A and B, PANEL B and C. 4.
  • Page 152 7. Remove two LCD support mounting screws, and then remove the LCD. LCD support LCD spacer CONNECT SCANNER PCB 1. Remove the TOP FRONT COVER, THE TOP RIGHT COVER and the TOP LEFT COVER. 2. Remove the bottom corner cover mounting screw, and then remove the BOTTOM CORNER COVER.
  • Page 153 4. Open the top cover and remove the Hinge screw as shown. Hinge screw 4. Remove the harness holder mounting screw, and then remove the HARNESS HOLDER. 5. Remove the PLATEN COVER assembly. Platen cover assembly Harness holder 6. Remove two screw covers. Then remove four top rear cover mounting screws, and then remove the TOP REAR COVER.

  • Page 154: Battery Pcb

    7. Disconnect all connectors on the connect scanner PCB, and then remove the CONNECT SCANNER PCB. Connect scanner PCB BATTERY PCB 1. Perform the procedure of step1 through 6 in “CONNECT SCANNER PCB,” page 5.19. 2. Disconnect the connector on the BATTERY PCB and remove the BATTERY PCB mounting screw, then remove the BATTERY PCB.

  • Page 155: Inverter Pcb

    INVERTER PCB 1. Remove the TOP FRONT COVER and the TOP RIGHT COVER. 2. Remove the FBS glass. 3. Remove two LENS COVER mounting screws, and then remove the LENS COVER. 4. Disconnect two connectors on the INVERTER PCB and remove two INVERTER PCB mounting screws, then remove the INVERTER PCB.

  • Page 156: Connect Adf Pcb

    CONNECT ADF PCB 1. Remove the TX SIDE COVER R. 2. Disconnect all connectors on the CONNECT ADF PCB. 3. Remove the ground wire. 4. Remove two CONNECT ADF PCB mounting screws, and then remove the CONNECT ADF PCB. Ground wire Connect ADF PCB 5-23...

  • Page 157: Sensors

    5.2.3 Sensors TXIL COVER SW DRUM SW HOME HPES CASOP JCOP TXIL Refer to “TXIL(ADF), DS1/DS2,” page 5-26. Refer to “TOS,” page 5-39. HOME Refer to “HOME sensor / END sensor,” Refer to “PDS/Thermistor,” page 5-42. page 5-33. Refer to “PES,” page 5-43. Refer to “HOME sensor / END sensor,”...

  • Page 158: Scanning Section

    5.2.4 Scanning section GEAR 16/36 SEPARATOR GEAR 22 TENSION PULLEY IDLER GEAE 48 PULLEY 50/17 PULLEY 50/17 GEAR 26/30 EXIT GEAR 24 TENSION PULLEY PULLEY 17 BELT INSTALLATION OF ADF SECTION FBS Motor BELT INSTALLATION OF FBS SECTION 5-25...
  • Page 159 TXIL (ADF) / DS1 / DS2 1. Remove the TX COVER. 2. Remove the sensor you want to remove. TXIL(ADF) SEPARATOR ROLLER ASSEMBLY 1. Remove the TX COVER. 2. Remove the E-ring, and then remove the separator gear 22. 3. Remove two E-rings, and then remove the SEPARATOR ROLLER Assembly. Separator gear 22 Separator roller assembly.
  • Page 160 RETARD ROLLER / TORQUE LIMITER 1. Open the Scanner Cover. 2. Remove the RETARD COVER. 3. Remove the RETARD ROLLER Assembly. Retard cover Retard roller assembly 4. Remove two E-rings, and then remove the TORQUE LIMITER with the bracket. Torque limiter 5-27...

  • Page 161: Adf Motor

    ADF MOTOR 1. Remove the TX SIDE COVER R. 2. Remove SPRING C, then remove seven motor bracket mounting screws. 3. Remove the MOTOR BRACKET and ADF MOTOR. Motor bracket Spring C Pulley 50/17 G26 FEED ROLLER A 1. Remove the TOP SIDE COVER R and F. 2.
  • Page 162 7. Remove the RETARD COVER, RETARD ROLLER assembly and TORQUE LIMITOR. 8. Remove the FEED ROLLER A from the INNER GUIDE A assembly. Inner guide A assembly Feed roller A ADF PERMIT SENSOR (APS) 1. Remove the TX SIDE COVER F and R. 2.
  • Page 163 4. Remove two INNER GUIDE B mounting screws, and then remove the INNER GUIDE B. 5. Release three tabs, and then remove the APS. Inner guide B FEED ROLLER B 1. Remove the TX SIDE COVER R and F. 2. Remove the ADF MOTOR. 3.
  • Page 164 EXIT ROLLER 1. Remove the TX SIDE COVER R. 2. Remove two E-rings, and then remove the EXIT GEAR 24 and the Bearings. Exit gear 24 3. Open the Platen Cover. Remove two PLATEN SHEET mounting screws, and then remove the PLATEN SHEET as shown.

  • Page 165: Exit Roller

    4. Remove five PLATEN STAY B mounting screws, and then remove the PLATEN STAY B. Platen stay B 5. Remove two PRESS SPRING D. 6. Remove the EXIT ROLLER. Exit roller 5-32...

  • Page 166: Fbs Motor

    HOME SENSOR / END SENSOR 1. Remove the TOP FRONT COVER, THE TOP RIGHT COVER and the TOP LEFT COVER. 2. Remove the PANE and the CONTACT GLASS. 3. Remove the HARNESS COVER C mounting screw, and then remove the HARNESS COVER C. 4.

  • Page 167: Scanner Assembly

    7. Loosen the REAR ANGLE mounting screw. Remove three FBS MOTOR BRACKET mounting screws. Remove the BELT. Remove the FBS MOTOR with the bracket. Rear angle FBS motor brackect FBS Motor SCANNER ASSEMBLY 1. Remove the TOP FRONT COVER, THE TOP RIGHT COVER and the TOP LEFT COVER. 2.
  • Page 168 6. Remove the BELT RETAINER mounting screw. 7. Remove two LENS COVER mounting screws, and then remove the Flat Cable from the CCD PCB. Lens cover Belt retainer CCD PCB Flat cable 8. Slide out the GUIDE ROD as shown below. Then remove the SCANNER ASSEMBLY. Guide rod Scanner assembly 5-35...

  • Page 169: Knob

    KNOB 1. Open the TOP COVER. 2. Remove the SPRING. 3. Remove the small screw with a precision screwdriver. 4. Pull out the KNOB. Knob Spring 5-36...

  • Page 170: Printer Section

    5.2.5 Printer section COVER SWITCH 1. Remove the REAR COVER. 2. Remove the CONNECT PRINTER PCB. 3. Remove two COVER SWITCH mounting screws, and then remove the COVER SWITCH. Cover switch CASOP 1. Remove the REAR COVER. 2. Remove the CONNECT PRINTER PCB. 3.

  • Page 171: Solenoid

    SOLENOID 1. Remove the REAR COVER. 2. Remove the CONNECT PRINTER PCB. 3. Remove the SOLENOID mounting screw, and then remove the SOLENOID. Solenoid RX MOTOR 1. Remove the REAR COVER. 2. Remove the CONNECT PRINTER PCB. 3. Remove the PSU. 4.

  • Page 172: Drive Gear Assembly

    DRIVE GEAR ASSEMBLY 1. Perform the procedure of step 1 through 3 in “RX MOTOR,” page 5.38. 2. Remove the SOLENOID. 3. Remove the four DRIVE GEAR Assembly mounting screws, then remove the DRIVE GEAR Assembly. Drive gear assembly 1. Open the TOP COVER. 2.

  • Page 173: Pick Up Roller Mp

    PICK UP ROLLER MP 1. Remove the FRONT COVER, the REAR COVER and the RIGHT COVER. 2. Remove the bearing, and then remove the PICK UP ROLLER MP. Pick up roller MP HPES 1. Remove the FRONT COVER, the REAR COVER and the RIGHT COVER. 2.

  • Page 174: Image Transfer Roller

    IMAGE TRANSFER ROLLER 1. Remove the Toner Cartridge and the Drum Cartridge. 2. Remove the IMAGE TRANSFER ROLLER with TRANSFER BRACKET using the precision screwdriver as shown. Image transfer roller FIXING UNIT 1. Remove the toner cartridge and the drum cartridge. 2.

  • Page 175: Pds / Thermistor

    PDS / Thermistor 1. Remove the FIXING UNIT. 2. Remove the FIXING UNIT COVER, and then remove the PDS or the thermistor. Fxing unit cover Themistor EXIT ROLLER P 1. Remove the FIXING UNIT. 2. Disassemble the FIXING UNIT to remove the EXIT ROLLER P. Note: Do not bend the PLATE SPRING at removing or attaching the EXIT ROLLER P.

  • Page 176: Pes

    1. Pull out the cassette completely. 2. Remove the PES mounting screw under the cassette, and then remove the PES. Disconnect the connector. PAPER PICK UP ROLLER 1. Pull out the cassette completely. 2. Pull out the pick up roller. Paper pick up roller 5-43...

  • Page 177: Feed Roller Bp

    FEED ROLLER BP 1. Remove the FRONT COVER, the REAR COVER and the RIGHT COVER. 2. Remove four MP bracket mounting screws, and then remove the MP BRACKET. 3. Remove the Feed B Bearing, and then slide out the FEED ROLLER BP. MP bracket Feed roller BP 5-44...

  • Page 178: Feed Roller Ap

    FEED ROLLER AP 1. Remove the REAR COVER and FRONT COVER. 2. Remove the POWER SUPPLY UNIT. 3. Remove the CONNECT PRINTER PCB. 4. Remove the DRIVE GEAR ASSEMBLY. 5. Remove the HVPS. 6. Remove the MAIN FRAME mounting screws. Main frame 7.

  • Page 179: Pss

    1. Remove the toner cartridge and the dram cartridge. 2. Remove the screw, and then remove the PRESS SPRING B. Remove the RELEASE LEVER and the PRESS ROLLER BP. 3. Remove the PSS COVER and remove the screw. Pull out the PSS and disconnect the connector. Release lever Press spring B Press roller BP...

  • Page 180: Led Print Head

    LED PRINT HEAD 1. Open the printer cover. 2. Remove the E-rings on the both side and pull out the LED print head. Disconnect two connectors. LED print head JCOP 1. Open the Side cover. 2. Disconnect the connector of the JCOP 3.

  • Page 181: Bypass Tray

    BYPASS TRAY 1. Open the Side cover. 2. To remove the BYPASS TRAY, release the tab at the front side of the BYPASS TRAY first, then release the other. Bypass tray 5-48...

  • Page 182: Adjustment

    5.3 Adjustment 5.3.1 Adjustment of Retard roller pressure When the bad document transportation or document separation is occurs even if the rollers dose not wear or uncleanness, adjust the Retard roller pressure. Insert the precision screwdriver into the hole of the Inner guide A as illustration. Then turn the separation pressure adjustment screw with referring the following table.

  • Page 183: Section 6 Options

    Section 6 Options 6.1 Memory Upgrade An optional 8 MB document memory upgrade is available for the OKIOFFICE 1200. An optional 8 MB or 24 MB document memory upgrade is available for the OKIOFFICE 1600. Packaging contents: (1) Memory PCB ......1 (2) Spacer ........
  • Page 184 8. Print the Machine setting list (Press Program key, E, 1, 0, 1, ENTER). Check the memory amount printed on the upper left part of the Machine setting list. Total memory Printed memory amount 8 MB(standard) 8192 KB 8 MB + 8MB 16384 KB 8 MB + 24 MB 32768 KB...

  • Page 185: Attaching An Optional Handset

    6.2 Attaching an optional handset Packaging contents: (1) Telephone handset (with curl cord)....1 (2) Handset holder ..........1 (3) Cord holder............1 (4) Screw ..............2 Installation 1. Turn the fax machine off and remove the power cord and telephone line cord. 2. Using a Phillips-head screwdriver, attach the cord holder and handset holder to the left side of the machine, using the screws included with the handset holder.

  • Page 186: Rs-232C Interface

    6.3 RS-232C interface Packaging contents: (1) RS-232C PCB ..........1 (2) Connector PCB ..........1 (3) Bracket ............1 (4) Connection cable..........1 (5) One screw ............1 (6) Ferrite core............1 (7) Operating instructions ........1 Installation 1. Turn the fax machine off. 2. Remove two screws on the RS-232C PCB, and then attach the bracket to the RS-232C PCB with them.
  • Page 187 5. Open the top cover. 6. Remove five mounting screws holding the rear cover in place. Then remove the rear cover. 7. Remove the shield plate. 8. Connect the RS-232C PCB assembly to the Main control PCB with the connection cable as shown below: 9.

  • Page 188: Rs-232C Interface Cable

    RS-232C interface cable The RS-232C port on your newly installed RS-232C interface has a DB-25 (standard 25-pin serial) female receptacle which accepts a male DB-25 cable plug. Your computer’s port may have either a DB-25 or DB-9 (9-pin) receptacle. If necessary, see the chart below for detailed information on the pin assignment for your fax machine’s RS232C port.

  • Page 189: Page Counter

    6.3 Page Counter The mechanical counter shows the total number of pages the machine prints. Note: The mechanical counter must be installed by the engineer. Note: This device counts up to 999,999 pages. If more pages are printed, the counter resets to zero and begins counting the new pages from that point.

  • Page 190: Packaging Contents

    6.4 Second line interface (only for OKIOFFICE 1600) Packaging contents: (1) Second line interface — Includes the NCU and Modem PCBs......1 (2) Screws ........................4 (3) Connection cable....................1 (4) Telephone line cord.....................1 (5) Second line interface operating instructions ............1 Installation Note: Turn off the fax machine before proceeding. 1.

  • Page 191: Ncu Pcb

    5. Remove the ground wire mounting screw on the Second phone line module. Then remove the ground wire. Note: Keep the ground wire to re-attach it in step 13. 6. Remove two NCU PCB mounting screws and release two tabs as shown. Then remove the NCU PCB from the bottom chassis of the second phone line module.
  • Page 192 9. Re-attach the NCU PCB and the Modem PCB to the bottom chassis using two screws and six tabs. 10. Use the screws to re-attach the four angle plates to the bottom chassis. 11. Plug the connection cable into the P14A connector on the Main control PCB. Remove the mounting screw on the lower left of the shield plate.
  • Page 193 14. Re-attach two ground wire to the Second phone line module’s bottom chassis using the screw. Plug the connection cable into the P1(IN) connector on the Second phone line module’s Modem PCB. 15. Use the four screws to re-attach the second phone line module cover. 16.

  • Page 194: Packaging Contents

    6.5 Printer controller board / Network interface card Packaging contents: Here’s what should be in the Printer controller board package: & " 1. Printer Control PCB ........................1 2. Screw............................1 3. Connection cable B with ferrite core .....................1 4. Connect option 1 PCB ........................1 5.
  • Page 195 Attaching the Printer controller board (and Network interface card) Note: Make sure to turn off the fax machine and unplug the power cable before proceeding the following steps. Note: When it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body.
  • Page 196 2. Remove the REAR COVER and OPTION COVER A of the machine, and remove the SHIELD PLATE. 3. Connect the CONNECTION CABLE B and CONNECT OPTION PCBs and CONNECTION CABLE C as shown below. Take notice of the PCBs’ direction. Connect option 2 PCB Connect option 1 PCB Connection cable B...
  • Page 197 If you also install the NIC PCB, secure it using a screw too. And then attach the O.P. Shield. O.P. Shield 11. Re-attach the SHIELD PLATE and the REAR COVER you have removed in step 1. Note: Be sure to ensure no wire is trapped when reattaching the SHIELD PLATE and the REAR COVER.
  • Page 198 13. Connect the bi-directional parallel printer cable to the printer interface port of printer control PCB. Note: Attach the ferrite core included in the printer control kit’s carton box to the printer cable as shown. 14. Snap the plug’s wire clips onto the printer cable. 15.

  • Page 199: Installation

    6.6 Attaching the 2-Bin tray Packaging contents: (1) 2-Bin unit (with connection cable) ...............1 (2) Screws ........................4 (3) Paper tray for the 2-Bin unit ................1 Note: When it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body.
  • Page 200 10. And then secure the 2-Bin tray using the four screws. 11. Re-attach the PCB SHIELD. 12. Re-attach the RX EXIT COVER A. RX exit cover A 13 Re-attach the EXIT TRAY, TOP LEFT COVER, OPTION COVER A, PCB SHIELD and REAR COVER.
  • Page 201 <References> REAR COVER 1. Open the top cover. 2. Remove the five rear cover mounting screws. 3. Disconnect the speaker connector and remove the REAR COVER. TOP FRONT COVER / TOP RIGHT COVER / TOP LEFT COVER 1. Open the platen cover. 2.
  • Page 202 OPTION COVER A 1. Remove the option cover A mounting screw. 2. Remove the OPTION COVER A. Option cover A EXIT TRAY 1. Open the cassette. 2. Remove the three exit tray mounting screws. 3. Remove the EXIT TRAY. Exit tray 6-20...
  • Page 203 RX EXIT COVER 1. Remove the EXIT TRAY. 2. Remove the TOP LEFT COVER. 3. Remove the OPTION COVER A. 4. Remove the Rx exit cover mounting screw, and then remove the RX EXIT COVER. Rx exit cover 5. Separate the RX EXIT COVER A FROM B. Rx exit cover B Rx exit cover A 6-21...

  • Page 204: Installation

    6.7 Second paper cassette Packaging contents: (1) Second cassette......1 (2) Screws (3 x 10 mm) ....2 (3) Ferrite core........1 Note: When it is absolutely necessary to touch the ICs and other electrical components on the board, be sure to ground your body. Installation 1.
  • Page 205 5. Release the tab of the harness door under the machine, and then remove the harness door. 6. Put the machine on the second cassette. 7. Pass the harness and the ground wire of the second cassette through the harness door. Then attach the ferrite core to the harness as illustration below.
  • Page 206 10. Re-attach the rear cover of the machine. However, do not secure the two places of the rear side of the rear cover. These places will be secured with the screws (3 x 10 mm) included in the option cassette box. The remaining two screws (3 x 8 mm) will be used in step 12.
  • Page 207 Setting of the Paper Size Default setting: A4 When you install the second cassette, you must set the paper size for it. 1 Press Program key, B, 1, 0, 1, ENTER. The LCD shows: 1st Cassette ←/→/Enter 2 Press ENTER to go to the setting for the second cassette. The LCD shows: 2nd Cassette ←/→/Enter ←...

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Okioffice 1600

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