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OKIDATA OKIJET 2020 Service Manual

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OKIJET 2020
Service Manual
P/N 59276601

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Summary of Contents for OKIDATA OKIJET 2020

  • Page 1 OKIJET 2020 Service Manual P/N 59276601...
  • Page 2 532 Fellowship Road provided service. If the customer services Mt. Laurel, NJ such equipment, modules, components or 08054-3499 parts thereof, the customer releases Okidata from any and all liability for the Web Site www.okidata.com customer actions, and the customer Telephone 609-235-2600...

  • Page 3: Table Of Contents

    Section Contents ........3-1 4. Repair / Adjustment Procedures Section Contents ........4-1 5. Parts List Section Contents ........5-1 6. General Procedures Section Contents ........6-1 7. Wiring Data Section Contents ........7-1 OKIJET 2020 Service Manual Introduction P/N 59276601...

  • Page 4: Introduction

    RAP, exit the procedure when the fault is service call. It classifies the problem and fixed. Do not perform the remaining steps. refers you to the appropriate Repair Analysis Procedure. OKIJET 2020 Service Manual Introduction P/N 59276601...

  • Page 5: How To Use This Manual

    When you have made a repair, return to the System Checkout / Final Action to complete the call. OKIJET 2020 Service Manual Introduction P/N 59276601...

  • Page 6: Reference Symbology

    PL 10.6 Section 5 of this Service Manual. The number after the PL Feedback PL 10.6 designation indicates the number that is assigned to that part. This indicates a feedback signal. OKIJET 2020 Service Manual Introduction P/N 59276601...

  • Page 7: Signal Nomenclature

    Switch or relay contacts with maintenance procedure, practice, momentary contacts shown or condition that, if not strictly normally closed. observed, could result in damage to, or destruction of, equipment. OKIJET 2020 Service Manual Introduction P/N 59276601...
  • Page 8 This page was intentionally left blank. OKIJET 2020 Service Manual Introduction P/N 59276601...

  • Page 9: Service Call Procedures

    1. Service Call Procedures Section Contents Title Page Introduction..........1-2 Printer Maintenance........1-3 Initial Actions ..........1-4 System Checkout / Final Action ....1-5 OKIJET 2020 Service Manual Section 1 P/N 59276601 Service Call Procedures...

  • Page 10: Introduction

    Final Action. • System Checkout / Final Action - This procedure should be completed at the end of every repair call to ensure that the printer is operating properly. Section 1 OKIJET 2020 Service Manual Service Call Procedures P/N 59276601...

  • Page 11: Printer Maintenance

    Free Tissue and water. Paper Feed Pinch Clean using a Lint rollers and Paper Free Tissue and Feed Guide water. Maintenance Station Clean using a Lint Free Tissue and water. OKIJET 2020 Service Manual Section 1 P/N 59276601 Service Call Procedures...

  • Page 12: Status Indicator Raps

    POWER LED BLINKING • ALL OTHER PROBLEMS Go to Power LED Blinking RAP Go to Section 2 contents • NO LEDs ON Go to the 1.1 Power On RAP Section 1 OKIJET 2020 Service Manual Service Call Procedures P/N 59276601...

  • Page 13: System Checkout / Final Action

    Pattern”. The alignment is good. Go to the Printhead Alignment Procedure. (Section Four) Clean exterior of machine. Use a lint free tissue and water. Provide a sample of the Test Print. OKIJET 2020 Service Manual Section 1 P/N 59276601 Service Call Procedures...
  • Page 14 This page was intentionally left blank. Section 1 OKIJET 2020 Service Manual Service Call Procedures P/N 59276601...

  • Page 15: Section Contents

    Low Ink LED(s) On RAP ......2-3 6.1 Carriage RAP ........2-10 Error LED Flashing RAP ....... 2-5 6.2 Encoder RAP.........2-10 8.1 Paper Feed RAP ........2-12 9.1 Blank Print RAP ........2-14 OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 Section Contents...

  • Page 16: Error Led On Rap

    The carriage was noisy. The print head stopped at each ink cartridge during the power- on cycle. Go to 6.2 Encoder RAP. Status Code Indicators OKIJET 2020 Service Manual Error Lamp On RAP / Power LED Blinking RAP P/N 59276601...

  • Page 17: Low Ink Led(S) On Rap

    Replace the Ink Level Sensor (PL 2.1). Replace the main control board. If the problem still exists, replace the printer. Notes: Pulsed signal Low Ink sensed (2.5 to 4 VDC). OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 Low Ink LED(s) On RAP...
  • Page 18 This page was intentionally left blank. Status Code Indicators OKIJET 2020 Service Manual P/N 59276601...

  • Page 19: Error Led Flashing Rap

    3. Determine the code and go to the Error Code Chart (Table 1) for the corrective Table 1. Error Code Chart action. 4. Repeat step 1 as many times as necessary to determine the code. OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 Error LED Flashing RAP...

  • Page 20: Power On Rap

    OK, replace the Power Supply. If problem still exists, replace Main Control Board. Replace the Main Control Board before replacing the Control Panel Assembly. Figure 1. Voltage Measurements Status Code Indicators OKIJET 2020 Service Manual 1.1 Power On RAP P/N 59276601...
  • Page 21 3.15A NEUTRAL GROUND 7 13 16 PRINTHEAD RIBBON CARRIAGE CABLE Notes: PL 2.1 ACH = 115 VAC PL 2.1 = 220/240 VAC (50HZ) Figure 2. Power distribution OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 1.1 Power On RAP...

  • Page 22: Selection/Indication Rap

    Press and hold the Resume/FF button for 2 seconds. Paper feeds. Go to Flag 5 and check for an open wire. If good, go to 8.1 Paper Feed RAP. Status Code Indicators OKIJET 2020 Service Manual 2.1 Selection / Indication RAP P/N 59276601...
  • Page 23 BLACK INK LED (H) +5VDC +5 VDC CYAN INK LED (H) +5VDC Black MAGENTA INK LED (H) +5VDC YELLOW INK LED (H) +5VDC Cyan +5 VDC Magenta Yellow OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 2.1 Selection / Indication RAP...

  • Page 24: Carriage Rap

    Check the teeth on the carriage motor. • Check for 42 volts. • If 42 volts aren’t being supplied by the power supply, replace the power supply. Status Code Indicators OKIJET 2020 Service Manual 6.1 Carriage RAP / 6.2 Encoder RAP 2-10 P/N 59276601...
  • Page 25 WHEN THE CARRIAGE IS NOT MOVING, THE VOLTAGE IS EITHER +5 VDC OR 0 VDC. WHEN THE CARRIAGE IS MOVING, THE VOLTAGE IS APPROXIMATELY 2.6 VDC. OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 2-11 6.1 Carriage RAP / 6.2 Encoder RAP...

  • Page 26: Paper Feed Rap

    If OK, go to Flag 3 and check for an open circuit. • Replace the Back Pad. • If the problem still exists, replace the Main Control Board. Status Code Indicators OKIJET 2020 Service Manual 6.1 Carriage RAP / 6.2 Encoder RAP 2-12 P/N 59276601...
  • Page 27 MOTOR MOT2 +42 VDC +42 VDC Paper Feed Step 0 Signal MOT 2 Paper Feed Step 1 Paper Feed Step 2 Signal Paper Feed Step 3 Signal OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 2-13 8.1 Paper Feed RAP...

  • Page 28: Blank Print Rap

    Carriage Assembly and J12 on the Ink Cartridge for being contaminated or damaged. Clean or repair as necessary. • If the problem still exists, replace the Printhead Ribbon Cable (PL 2.1). Status Code Indicators OKIJET 2020 Service Manual 9.1 Blank Print RAP 2-14 P/N 59276601...
  • Page 29 Main Control Board CARRIAGE PL 2.1 PL 1.1 PRINTHEAD IPRINTHEAD CARTRIDGE RIBBON PL 2.2 CABLE PL 2.1 PRINTHEAD CONTROL CONTROL LOGIC LOGIC IPRINTHEAD NOZZLES J11 (under carriage) Carriage OKIJET 2020 Service Manual Status Code Indicators P/N 59276601 2-15 9.1 Blank Print RAP...
  • Page 30 This page was intentionally left blank. Status Code Indicators OKIJET 2020 Service Manual 2-16 P/N 59276601...

  • Page 31: Section Contents

    3. Image Quality Section Contents Title Page Image Quality Analysis RAPs IQ 1 Image Defect Entry RAP....3-2 OKIJET 2020 Service Manual Image Quality RAPs P/N 59276601 Section Contents...
  • Page 32 2. Refer to the DEFECT Column in Table 1 that best describes the image quality problem. 3. If the problem is with external input only, replace the Main Control Board. Figure 1. Test Print Image Quality RAPs OKIJET 2020 Service Manual IQ1 Image Defect Entry RAP P/N 59276601...

  • Page 33: Image Quality Raps

    Print off edge of media off edge of media type. • Adjust margins in the application as necessary. Document margins may exceed printer margins. Table 1. Image Defect Table OKIJET 2020 Service Manual Image Quality RAPs P/N 59276601 IQ1 Image Defect Entry RAP...
  • Page 34 This page was intentionally left blank Image Quality RAPs OKIJET 2020 Service Manual P/N 59276601...

  • Page 35: Section Contents

    Paper Path Sensor (SW 1)..4-21 REP 1.14 Back Pad ......4-22 REP 1.15 Printhead Ribbon Cable ..4-24 REP 1.16 Ink Level Sensor ....4-27 Adjustments ADJ 2.0 Printhead Alignment....4-28 OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 Section Contents...
  • Page 36 The optional high capacity printhead is shown. Cartridge Refer to the User’s Documentation for belt Change / Clean illustrations of the standard printhead. Printhead Resume / FF lock lever 0400101A-LAT Figure 1. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.0 P/N 5927660...
  • Page 37 6. Reinstall the Output Tray. Paper Tray Asse Handles Cam must be positioned here Figure 2. 0400111A-LAT 0400112A-LAT Figure 1. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 REP 1.1...
  • Page 38 3. Lift the Cartridge Cover from the printer. engage with the pivot hole of the Top Cover. 4. Close the Cartridge Cover. Cartridge Cover Top Cover 0400121A-LAT Figure 1. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.2 P/N 59276601...
  • Page 39 3. Remove the Paper Tray Assembly (REP 1.1). 4. Remove the Cartridge Cover (REP 1.2). 5. Lay the printer on it’s back; release the three front latch tabs (Figure 1). latch tabs Figure 1. 0400131A-LAT OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 REP 1.3...
  • Page 40 This page was intentionally left blank. Repairs / Adjustments OKIJET 2020 Service Manual P/N 59276601...
  • Page 41 Switch off the power. Disconnect the power cord from the wall outlet. 6. Reinstall the Output Tray (PL 1.1). 7. Reinstall the Printhead (REP 1.0). Exit Guide apply pressure here Figure 1. 0400141A-LAT OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 REP 1.4...
  • Page 42 Paper Feed / Carriage Assembly (Figure 1). 7. Disconnect ground wire from grounding ground wire plate at right side of printer (Figure 2). Figure 2. Right side 0400152A-LAT Repairs / Adjustments OKIJET 2020 Service Manual REP 1.5 P/N 59276601...
  • Page 43 Main Contro Carriage remove screw disconnect connectors remove CN3 & CN4 screw 0400154A-LAT 0400153A-LAT Level Figure 4. Figure 3. Sensor 0401112A-LAT OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 REP 1.5...
  • Page 44 This page was intentionally left blank. Repairs REP 1.6 4-10 XJ4C...
  • Page 45 Power Supply Control connector CN2 from the Main Control Board connector CN1; lift the Power Supply from 2. remove the printer. screws (4) 0400161A-LAT Figure 1. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-11 REP 1.6...
  • Page 46 7. Remove the Power Supply (REP 1.6). wire 8. Disconnect Main Control Board connector connector CN2 from the Main Control Board (Figure mounting screws (8) ferrite 0400171A-LAT Figure 1. Main Control Board Repairs / Adjustments OKIJET 2020 Service Manual REP 1.7 4-12 P/N 59276601...
  • Page 47 Paper Feed / Carriage Assembly (REP 1.5) c. Top Cover (REP 1.3) d. Cartridge Cover (REP 1.2) e. Paper Tray Assembly (REP 1.1) Output Tray (PL 1.1) g. Printhead (REP 1.0) OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-13 REP 1.7...
  • Page 48 Paper Feed / Carriage Assembly (REP 1.5) 3. Remove Waste Ink Pad retainer by releasing the four locking tabs with screwdriver or other similar tool (Figure. 1). 0400181A-LAT Figure 1. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.8 4-14 P/N 59276601...
  • Page 49 Note routing of outlet tube; remove mounting cable tie; slide tube through frame. Figure 1. screw c. Remove two Pump mounting screws. (Figure 2). 0400192A-LAT d. Slide pump from motor shaft. Figure 2. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-15 REP 1.9...
  • Page 50 5. Remove the mounting screw (Figure 1). 6. Lift and hold the left side of the paper pressure baffle approximately six Maintenance millimeters away from the Maintenance Station Station. 0401101A-LAT Figure 1. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.10 4-16 P/N 59276601...
  • Page 51 Top Cover (REP 1.3) b. Cartridge Cover (REP 1.2) c. Paper Tray Assembly (REP 1.1) d. Output Tray (PL 1.1) e. Printhead (REP 1.0) Figure 2. 0401102A-LAT OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-17 REP 1.10...
  • Page 52 Figure 1. CAUTION Relay A ribbon cable is attached to the bottom of the BOARD carriage assembly. Do not damage it while removing the carriage assembly. 0401113A-LAT Figure 3. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.11 4-18 P/N 59276601...
  • Page 53 8. Reinstall carriage into Paper Feed / Carriage Assembly. Ensure carriage ribbon Encoder plate cable is properly secured and not twisted. pointer mounting screws 0401114A-LAT index mark Figure 4. 0401115A-LAT Figure 5. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-19 REP 1.11...
  • Page 54 4. Remove the mounting screws (3) from the Figure 1. Control Panel Assembly; remove the board 0401121A-LAT (Figure 1). 5. Disconnect the ribbon cable from the board. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.12 4-20 P/N 59276601...
  • Page 55 Assembly as shown in Figure 1. Paper Path 4. Disconnect J3 from the Relay Board. See Sensor Figure 1. mounting 5. Remove mounting screw. screw 6. Remove Paper Path Sensor. 0401131A-LAT Figure 1. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-21 REP 1.13...
  • Page 56 Back Pad 4. Remove the Back Pad mounting screw mounting screw (Figure 1). 5. Remove the retainer bracket and spring. 6. Remove the Back Pad. 0401141A-LAT Figure 1. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.14 4-22 P/N 59276601...
  • Page 57 This page was intentionally left blank. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-23...
  • Page 58 (Figure 1). NOTE: Expect moderate to heavy resistance when removing carriage from printer side frames. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.15 4-24 P/N 59276601...
  • Page 59 Figure 4b. 45° slot ribbon cable connector cable restraint edge restraints connector lock Figure 4c. 0401153A-LAT 0401154A-LAT Figure 3. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-25 REP 1.15...
  • Page 60 7. Reinstall the cams on the carriage shaft; mark reattach carriage to the Paper Feed / 0401115A-LAT Carriage Assembly; position the cams as Figure 4c. 0401154A-LAT shown in Figure 5. Figure 5. Repairs / Adjustments OKIJET 2020 Service Manual REP 1.15 4-26 P/N 59276601...
  • Page 61 Encoder Harness (J4) and the Low-ink Sensor (J2) on the Relay Board since they use the same type of connector. By doing so, the Main Logic Board may be damaged. OKIJET 2020 Service Manual Repairs / Adjustments P/N 59276601 4-27...
  • Page 62 Store the new value by pressing the Power On / Reset button. 4. Press the Power On / Reset button to save the new setting and exit the test. Repairs / Adjustments OKIJET 2020 Service Manual Adjustments 4-28 P/N 59276601...

  • Page 63: Section Contents

    PL 2.2 Paper Feed / Carriage Assembly Components (Part 2 of 3)... 5-4 PL 2.2 Paper Feed / Carriage Assembly Components (Part 3 of 3)... 5-5 Part Number Index........5-6 OKIJET 2020 Service Manual Parts List Section P/N 59276601 Section Contents...

  • Page 64: Parts List

    EXPLODED ON PL 2.1 / PL 2.2 53591201 Box: Storage 60K1010 55069101 Controller: Main (Adj 2.1) 160k31980 Printer Base (Not Spared) 56416001 Supply: Power 105k16290 50517501 Pad: Waste Ink 19E35780 000001A-LAT PARTS LIST SECTION OKIJET 2020 Service Manual PL1.1 P/N 59276601...

  • Page 65: 2.1 Paper Feed / Carriage Assembly Components (Part 1 Of 3)

    Encoder (ADJ 2.1 2.2) 146K00490 Encoder Plate (P/O Item 1) (ADJ 2.1 2.2) Carriage (P/O Item 1) (ADJ 2.1 2.2) 50222701 Assembly: Pump 127K22240 NOTE: PO = Part of 0000002B-LAT OKIJET 2020 Service Manual Parts List Section P/N 59276601 PL2.1...

  • Page 66: 2.2 Paper Feed / Carriage

    Spring (P/O Item 1) 50517401 Pad: Back 19E35770 Paper Feed / Carriage Housing (P/O Item 1) 56635701 Cable: Ribbon Printhead 12E8630 55626201 Sensor: Low Ink 130K58470 NOTE: PO = Part of 0000002B-LAT OKIJET 2020 Service Manual Parts List Section P/N 59276601 PL2.1...

  • Page 67: 2.2 Paper Feed / Carriage

    Housing (Part Of Item 1) 52110102 Printhead: Color 8R7659 (Consumable) 52110001 Ink Cartridge: Black 8R7660 (Consumable) 52110002 Ink Cartridge: Cyan 8R7661 (Consumable) 52110003 Ink Cartridge: Magenta 8R7662 (Consumable) 52110004 Ink Cartridge: Yellow 8R7663 (Consumable) PARTS LIST SECTION OKIJET 2020 Service Manual PL2.2 P/N 59276601...

  • Page 68: Part Number Index

    50411301 ....6871B0246P0....130K56490 ... Sensor: Paper Path......2.1 ....RSPL 55626201 ..........130K58470 ... Sensor: Low Ink .......2.1....RSPL 50222601 ....6615B00001A....146K00490 ... Assembly: Encoder ......2.1 ....RSPL 55069101 ....6871B0240P0....160K31980 ... Controller: Main .......1.1 ....RSPL PARTS LIST SECTION OKIJET 2020 Service Manual P/N 59276601...
  • Page 69 53581810 ................Box: Shipping OKIJET 2020 ....N/A .....RSPL 53591201 ................Box: Printhead Storage....N/A....RSPL 53592501 ................Corrugated Packing (Top)....N/A....RSPL 53592502 ................Corrugated Packing (Bottom)....N/A....RSPL 56631801 ................Cord: AC 120 V (Bulk) .....N/A....RSPL Whole Unit 62600201 ....
  • Page 70 This page was intentionally left blank. PARTS LIST SECTION OKIJET 2020 Service Manual P/N 59276601...

  • Page 71: Section Contents

    Removal / Replacement of the printer components ........6-9 Technical Overview ........6-10 Power and Control........6-10 Standby power .........6-10 Run control functions .......6-10 Printing and Priming........6-11 Printing ............6-11 Cleaning and Priming.......6-12 Ink Level Sensing ........6-13 OKIJET 2020 Service Manual General Procedures P/N 59276601 Section Contents...

  • Page 72: Diagnostics

    Figure 1. When the test print is complete, the printer initializes and returns to the Ready status. d. If the test print fails to print, repeat steps a through c. Figure 1. Test Print General Procedures OKIJET 2020 Service Manual P/N 59276601...

  • Page 73: Gp 2 Printing With Dos

    1. Start at MS-DOS and insert the DOS diskette supplied with the printer into the A drive. 2. Type ‘A:install’ and press the Enter key. The installer message is displayed. OKIJET 2020 Service Manual General Procedures P/N 59276601 GP 2...

  • Page 74: Product Specifications

    0.15 amps Capacity Black with High Capacity Printhead - 5 ppm Throughput Black with Color Printhead - 4 ppm Color with Color Printhead - 1 ppm Table 1. Printer capabilities General Procedures OKIJET 2020 Service Manual Product Specifications P/N 59276601...

  • Page 75: Supplemental Items

    58323401 Sheet: Read Me First (English Only) 58323501 Manual: Certification (English Only) 59276501 Manual: Service (English Only) 59276601 Quick Start (English Only) 59274901 User’s Guide (English Only) 59275701 OKIJET 2020 Service Manual General Procedures P/N 59276601 Supplemental Tools and Supplies...
  • Page 76 This page was intentionally left blank. General Procedures OKIJET 2020 Service Manual P/N 59276601...

  • Page 77: Printer Overview And Technical Overview Introduction

    − Power and Control − Printing and priming − Carriage Drive − Paper Supply / Paper Feed − Sensors and Status Indicators OKIJET 2020 Service Manual General Procedures P/N 59276601 Printer Overview / Technical Overview...

  • Page 78: Printer Overview

    Read “Print the Demo Page“. • power cord. Perform the Demo Print test. Note: The test may be canceled by pressing the Power On / Reset button. General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview P/N 59276601...

  • Page 79: Printer Maintenance

    The user should try all the steps before calling for service. The user should also be prepared to report a description of the problem accurately when calling for service. OKIJET 2020 Service Manual General Procedures P/N 59276601 Printer Overview / Technical Overview...

  • Page 80: Technical Overview

    Main Control Board. Locate the Main Control Board in the printer. Main Control Board Power Supply 0400161A-LAT Figure 1. Power Supply 0400171A-LAT Figure 2. Main Control Board General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview 6-10 P/N 59276601...

  • Page 81: Printing And Priming

    Printer and the Printer Status (Ready, Not Ready, Printhead and Ink levels) and error signals are communicated to the PC via the cable. OKIJET 2020 Service Manual General Procedures P/N 59276601 6-11 Printer Overview / Technical Overview...

  • Page 82: Cleaning And Priming

    An enable signal is sent from the cartridge to inform the Figure 5. The cleaning and priming components Main Control Board that a cartridge is present. General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview 6-12 P/N 59276601...

  • Page 83: Ink Level Sensing

    (See Figure 7). If an ink cartridge is not present, or is incorrectly installed, no beam will be reflected and the OKIJET 2020 Service Manual General Procedures P/N 59276601 6-13...

  • Page 84: Carriage Drive

    Encoder plate) and a home position detection • Carriage Shaft signal is sent to the Main Control Board. The • Carriage belt and pulleys Carriage drive components are shown in Figure 7. General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview 6-14 P/N 59276601...

  • Page 85: Encoder

    Board monitors the Encoder signal by comparing the current Carriage position to the expected Carriage position. If the Carriage is not at the expected position, the error lamp will illuminate. OKIJET 2020 Service Manual General Procedures P/N 59276601 6-15 Printer Overview / Technical Overview...

  • Page 86: Paper Supply / Paper Feed

    Paper Tray and the Paper retracted after the lead edge of the sheet in paper misfeeds. Feed mechanism during the print cycle. reaches the Paper Path Sensor, SW1. General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview 6-16 P/N 59276601...

  • Page 87: Sensors And Status Indicators

    Figure 9. Paper Path Sensor is shown in Figure 9. Cam Sensor Paper Path Sensor (SW1) 040022A-LAT Figure 9. Paper Path Sensor and Cam Sensor OKIJET 2020 Service Manual General Procedures P/N 59276601 6-17 Printer Overview / Technical Overview...
  • Page 88 This page was intentionally left blank. General Procedures OKIJET 2020 Service Manual Printer Overview / Technical Overview 6-18 P/N 59276601...

  • Page 89: Wiring Data

    7. Wiring Data Section Contents Title Page Plug / Jack Location Index ......7-2 Plug / Jack Location Drawings ...... 7-3 Block Schematic Diagrams (BSDs)....7-7 OKIJET 2020 Service Manual Wiring Data P/N 59276601 Section Contents...
  • Page 90 Paper Feed Motor MOT2 ....7-4 On Distribution Board to Cam Sensor Q1......7-4 On Encoder Assembly ....7-4 On Low Ink Sensor Q2....7-5 On Carriage ........7-5 On Carriage........7-5 Wiring Data OKIJET 2020 Service Manual Plug / Jack Location Index P/N 59276601...
  • Page 91 Plug / Jack Location Drawings MAIN CONTROL BOARD POWER CN-1 SUPPLY Figure 7-1. Main Control Board and Power Supply OKIJET 2020 Service Manual Wiring Data P/N 59276601 Plug / Jack Location Drawings...
  • Page 92 (To Low Ink Sensor) (To Encoder) (Encoder) Sensor Q1) Carriage Motor MOT1) (To Main Control Board) (To Paper Path Sensor SW1 040022A-LAT Figure 7-2. Carriage Assembly (Bottom View) Wiring Data OKIJET 2020 Service Manual Plug / Jack Location Index P/N 59276601...
  • Page 93 (Under Carriage) 0400153A-LAT Figure 7-3. Carriage Figure 7-4. Front View OKIJET 2020 Service Manual Wiring Data P/N 59276601 Plug / Jack Locational Drawings...
  • Page 94 This page was intentionally left blank. Wiring Data OKIJET 2020 Service Manual Plug / Jack Location Index P/N 59276601...
  • Page 95 NEUTRAL GROUND 7 13 16 PRINTHEAD RIBBON CABLE CARRIAGE PL 2.1 Notes: = 115 VAC = 220/240 VAC STANDBY POWER CHAIN 1 LEVEL SHEET 1 OF LAT-1000 OKIJET 2020 Service Manual Wiring Data P/N 59276601 Chain 1 AC/DC Power Generation...
  • Page 96 Black MAGENTA INK LED (H) +5VDC YELLOW INK LED (H) +5VDC Cyan +5 VDC Magenta Yellow MODE SELECTION CHAIN 2 LEVEL 2 SHEET 1 OF 1 LAT-1001 Wiring Data OKIJET 2020 Service Manual Chain 2 Selection and Indication P/N 59276601...
  • Page 97 Paper jam error • Carriage position error • Paper mechanism initial error • RAM check error MACHINE RUN CONTROL CHAIN 3 LEVEL 2 SHEET 1 OF 1 CAT-1002 OKIJET 2020 Service Manual Wiring Data P/N 59276601 Chain 3 Machine Run Control...
  • Page 98 CHAIN 6 LEVEL 2 THE VOLTAGE IS EITHER +5 VDC OR 0 SHEET 1 OF 1 VDC. LAT-1003 WHEN THE CARRIAGE IS MOVING, THE VOLTAGE IS APPROXIMATELY 2.6 VDC. Wiring Data OKIJET 2020 Service Manual Chain 8 Paper Feed 7-10 P/N 59276601...
  • Page 99 MOT 2 Paper Feed Step 1 Signal Paper Feed Step 2 Signal Paper Feed Step 3 PAPER FEED CHAIN 8 LEVEL 2 SHEET 1 OF 1 LAT-1004 OKIJET 2020 Service Manual Wiring Data P/N 59276601 7-11 Chain 8 Paper Feed...
  • Page 100 INK LEVEL Low Ink P/J2 SENSING Sensed CIRCUIT INK HEAD NOZZLES +5 VDC +5 VDC J11 (Under Carriage) PRINT CONTROL Carriage CHAIN 9LEVEL 2 SHEET 1 OF LAT-1005 Wiring Data OKIJET 2020 Service Manual Chain 9 Print Control 7-12 P/N 59276601...

  • Page 101: Printed In The U.s.a

    OKIJET 2020 Service Manual P/N 59276601 Printed in the U.S.A.

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