HiTi Digital P720L Service Manual
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HiTi Digital P720L Service Manual

HiTi Digital P720L Service Manual

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P720L
Service Guide
Version: 1.07

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Summary of Contents for HiTi Digital P720L

  • Page 1 P720L Service Guide Version: 1.07...

  • Page 2: Revision History

    Revision History Date Revision Description Remark 2011/1/13 The first release 2011/1/31 1.01 Modify Format 2011/3/2 1.02 Indicators & Pointers’ color 2011/4/13 1.03 TPH peeler adjustment 2011/5/9 1.04 Printing Speed 2011/6/8 1.05 Modify the ribbon sensor calibration value description 2011/8/29 1.07 Modify the P/N for peeler press and ribbon motor location...

  • Page 3: Table Of Contents

    Outlines: Revision History .......................2 Outlines:........................3 Chapter 1: Introduction ....................4 Chapter 2: Specification ...................5 Chapter 3: Anatomy of the printer ................6 3-1 PCB ......................6 3-2 Memory IC ....................7 3-3 LED & Sensor ....................7 3-4 Motor Locations...................8 3-5 Motor Interface.....................8 3-6 Capstan Motor....................9 3-7 Cam/ Ribbon/ADF Motor ................10 3-8 LCM interface ....................14 3-9 Power board ....................14...

  • Page 4: Chapter 1: Introduction

    Chapter 1: Introduction This document contains the operation theory and parts replacement procedures that are intended to ease the task of transportation, usage, maintenance and parts replacement. Please feel free contact our regional offices if you have any suggestion of this service guide, contact details are at the last page of this document.

  • Page 5: Chapter 2: Specification

    Chapter 2: Specification Model Name HiTi P720L Printing time: < 8 seconds for a 6x4 print (YMCO, 256 levels for each color, continuous tone printing) by cut-2-cut Standard and Fine Mode with and without Matte Size Standard Mode 6”x4” approx. 8 seconds 5”x7”...

  • Page 6: Chapter 3: Anatomy Of The Printer

    Chapter 3: Anatomy of the printer 3-1 PCB Main Board LCM BD 122 32 dots TPH BD 512 MB of 16-bit DDR SDRAM and up to 32MB of Flash Zoran ASIC ADF Interface BD Power Board Extended Junction BD for (fuse available) Sensors, and 27.5V, 430W...

  • Page 7: Memory Ic

    3-2 Memory IC This 256Mbit DDR x2 on main board is used to store buffer data, such as image file, print data, and video frames are temporarily stored here during operation. Nor Flash This 8Mbit x 8 flash memory is to store the MCU code and etc. 3-3 LED &...

  • Page 8: Motor Locations

    3-5 Motor Interface The Part Number for Motors are different from previous models, since there are 2 types of motor for P720L, and requires encoders for duty cycle, so its several parts combined with into an assembly number that begins with...

  • Page 9: Capstan Motor

    3-6 Capstan Motor Capstan motor is Unipolar stepping motor and driven by driver SLA7062. SLA7062, it is designed to drive both windings of a Unipolar stepping motor and includes pulse-width-modulation (PWM) control of output current to 2.4A. For PWM control, the maximum output current is determined by user’s selection of a reference voltage and sensing resister.

  • Page 10: Cam/ Ribbon/Adf Motor

    3-7 Cam/ Ribbon/ADF Motor Cam/ Ribbon/ADF Motor is DC motor and driven by driver A3950. A3950 is Designed for PWM (pulse width modulated) control of DC motors, the A3950 is capable of peak output currents to ±2.8 A and operating voltages to 36 V. PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals.
  • Page 11 Cam Pinch Motor: This motor controls the pinch roller to grab the paper to the printing position by using the cam gears on each side of the clutch. This motor also moves the Exit Roll which holds the paper when the cutter to cuts the paper after print.
  • Page 12 Ribbon Motors: There are 2 ribbon motors, their main function is to wind and rewind the ribbon to its printing positions.
  • Page 13 ADF Motor: This motor is to control the paper feed, as the name of this motor refers to Automatic Document Feeder.

  • Page 14: Lcm Interface

    3-8 LCM interface This 122×32 dots LCD Module built in two SED 1520 LSI controller. The SED 1520 controller transfers data via 8-bit bidirectional data buses (Do to D7). According to Display Start Line, Line Count Registers, Column Address Counter, Display Data RAM, Page Register to decide the display you want.

  • Page 15: Chapter 4: Operation Theory

    Chapter 4: Operation Theory...
  • Page 16 4-1 Paper path The paper will run through the following components during the printing process: Following problems are related to the movement of paper : 1. Debris (marks made by alien objects) 2. Scratches (minor scratches on the surface of paper) 3.
  • Page 17 4-2 Ribbon path The ribbon will run through the following components during the printing process: Following problems are related to the below parts: 1. Ribbon Jam (ribbon stuck in printer) 2. Printout Contamination (stains on ribbon) 3. Scratches (alien objects on ribbon that makes minor scratches on the printout) 4.

  • Page 18: Chapter 5: Gear List

    Chapter 5: Gear List Part Number Gear Name 65.D1410.001 KR_GEAR_ONEWAY_EXIT_P720L 65.D0920.001 PULLEY_ROLLER_EXIT_MXL 56.D1408.H01 KR_CAM_EXIT_R_DESKEW 65.D1411.001 KR_GEAR_PULLEY_EXIT Out: 65.D1414.001 KR_GEAR_TQL_TOP_EXIT TQL: 46.D1402.001 KR_TQL_EXIT_P720L In: 65.D1413.001 KR_GEAR_TQL_BASE_EXIT 65.D1412.001 KR_GEAR_ROLLER_EXIT...
  • Page 19 Part Number Gear Name 65.D1416.001 KR_PULLEY_CAPSTAN_P720L 56.D1407.H01 KR_CAM_EXIT_L_DESKEW 65.D1417.001 KR_PULLEY_DRIVE_P720L Part Number Gear Name 65.D1422.001 S_GEAR_RBN_SUPPLY_1 65.D1423.001 S_GEAR_RBN_SUPPLY_2 65.D1426.001 S_GEAR_TQL_SUPPLY...
  • Page 20 Part Number Gear Name 65.D1422.001 S_GEAR_RBN_SUPPLY_1 65.D1423.001 S_GEAR_RBN_SUPPLY_2 65.D1423.001 S_GEAR_RBN_SUPPLY_2 65.D1423.001 S_GEAR_RBN_SUPPLY_2 Part Number Gear Name 65.D1407.001 KR_GEAR_ENCODER_ADF 65.D1408.001 KR_GEAR_IDLE_ADF_P720L 65.D1409.001 Gear_Motor_ADF 65.D1419.001 M_GEAR_DOOR_P720L_15T 65.D1418.001 M_GEAR_DAMPER_DOOR_P720L_75 65.D1406.001 KR_GEAR_DRIVER_ADF...
  • Page 21 Part Number Gear Name 65.D1415.001 KR_GEAR1_CAM_TPH 65.D1404.012 KR_CAM_TPH_R_P720L 65.D0907.001 GEAR_SWING_A5_M1 65.D0907.001 GEAR_SWING_A5_M1 65.D0907.001 GEAR_SWING_A5_M1 65.D1402.001 KR_CAM_LINKAGE_R_P720L 65.D1403.012 KR_CAM_TPH_L_P720L 65.D1401.001 KR_CAM_LINKAGE_L_P720L...

  • Page 22: Chapter 6: Spare Part List

    Chapter 6: Spare Part List Suggested Parts The following list is the suggested parts to purchase or keep as safety stock for service of P720L. Part Name Part Number KR_TQL_ORIGIN_SUPPLY_NEW(OTLV-600B) 46.D0907.001 KR_TQL_EXIT_P720L 46.D1402.001 T_PLATE_PEELER_SUS_U_MYLAR 51.D1450.013 (T_MYLAR_REFLECT_RBN) 56.D1453.001 KR_ROLLER_CAPSTAN_P720L 53.D1407.001 ROLLER_PINC_A5_1 59.D0913.002...
  • Page 23 ID TRASH TRAY 47.D1413.001 M_PAPER_HOLDER_P720_L_2 65.D1420.002 M_PAPER_HOLDER_P720_R_2 65.D1421.012 BOX_ACCESSORIES_P720L 57.D1407.001 TPH SUB MODULE P720L 47.D1402.001 POWER BD P720L 001 ROHS 44.D14R2.001 Button BD P720L A11 ROHS 45.D14RS.A11 C115KZ4_ASM (Cutter Assembly) 46.D1401.001 LCM_IF_BD P720L 021 ROHS 45.D14RB.021 SMART_CARD_BD P720L 011 ROHS 45.D14R8.011...

  • Page 24: Chapter 7: Disassembly Prohibited

    Chapter 7: Disassembly Prohibited Please note that all motors with encoder connected to it should not be disassembled. The Thermal Print Head is an assembly set; the following 8 screws should not be touched unless instructed by HiTi Engineers. Refer to adjustment in Chapter 9...
  • Page 25 The linkage consist several gears, springs and shafts, the following screws are prohibited to be touched.
  • Page 27 The following screws are prohibited to be touched on the ADF Module.
  • Page 28 The following screws are prohibited to be touched on the Chassis.

  • Page 31: Chapter 8: Disassembly & Assembly

    Chapter 8: Disassembly & Assembly Tools Tweezers Wire Cutter Screwdriver– minus Screwdriver– plus Screwdriver– minus (slot or flat) Screwdriver– plus (Philips) Plier Standard 3 size screw drivers 107 1/4” 102 3/16” 101 1/8”...

  • Page 32: Screw List

    Screw List Specification 71.75A53.8P0 MACH CAP M3-0.5X8L NYLOK M2.6...
  • Page 33 Specification...
  • Page 34 Parts ID RIGHT ASSY Part No. 48.D1415.001 ID LEFT ASY 48.D1416.001 Name ID FRONT ASSY 48.D1417.001 M_ID_BACK 51.D1419.001 M_ID_LEFT 51.D1420.001 M_ID_RIGHT 51.D1421.001 M_ID_TOP 51.D1422.001 K_COVER_ADF_R 56.D1403.001 K_COVER_ADF_L 56.D1402.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. 1 Step 1, Turn the printer to its back, and unscrew the circled screws: Step 2, Remove the side covers (M_ID_LEFT &...
  • Page 35 Step 3, There are 2 screws on each side of the top cover (M_ID_TOP) as shown below, unscrew them in order to take off the top cover. Top, and both side covers disassembled M_ID_LEFT M_ID_RIGHT M_ID_TOP Step 4, Remove 7 screws on both side of the cover (K_COVER_ADF_R & K_COVER_ADF_L) shown below...
  • Page 36 Step 5, Remove the following screws to disassemble the front cover (ID FRONT ASSY) Step 6, Unscrew the screws shown below to remove the M_ID_BACK...
  • Page 38 Parts P720 MAIN-BD 011 ROHS Part No. 45.D14R1.031 Name POWER BD P720L 001 ROHS 44.D14R2.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2, Unscrew the following 8 screws shown below:...
  • Page 39 Step 3, Unscrew 6 screws on the main board and unplug the connectors P720 MAIN-BD 011 ROHS...
  • Page 40 Step 4, Unplug the following cables from the power board as shown below: POWER BD P720L 001 ROHS...
  • Page 41 Parts WIRE SNR_ADF 160MM ROHS Part No. 45.D14RG.A11 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. 3 Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unplug the sensor wire as shown below: Step 3, Remove the 3 screws on the ADF Sensor, and this sensor is off Move the linkage to these...
  • Page 42 Parts KR_GEAR_ENCODER_ADF Part No. 65.D1407.001 Name KR_GEAR_IDLE_ADF_P720L 65.D1408.001 KR_GEAR_DRIVER_ADF 65.D1406.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. 4 Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Remove the screws as shown below Move the linkage to these positions, in order to unscrew these 2 screws.
  • Page 43 Step 3, Disassemble the following 3 gears as shown below Just pull this gear out This washer is removable Remove this E-Ring to take out this gear Remove this E-Ring Remove the E-Ring...
  • Page 44 Parts ASM_MOTOR_ADF_P720L Part No. 46.D1405.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. 5 Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unplug the connector shown below Step 3, Remove the following 2 screws and the motor is off. ASM_MOTOR_ADF_P720L...
  • Page 45 Parts C115KZ4_ASM (Cutter Module) Part No. 46.D1401.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unplug the following 2 wires Step 3: Then remove the following 4 screws, and the cutter module is off. C115KZ4_ASM (Cutter Module)
  • Page 46 Parts Button BD P720L A11 ROHS Part No. 45.D14RS.A11 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unscrew the 3 screws shown below and unplug the cable...
  • Page 47 Parts LCM_IF_BD P720L 021 ROHS Part No. 45.D14RB.021 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unscrew the 4 screws shown below and unplug the cables...
  • Page 48 Parts KR_ROLLER_TIGHT_RBN Part No. 59.D1411.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides Cover as to Procedure 1 Step 4 Step 2, Remove the E-rings on both side and take out this roller. KR_ROLLER_TIGHT_RBN...
  • Page 49 Parts K_ROLLER_GUIDE_PAPER Part No. 59.D1403.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides Cover as to Procedure 1 Step 4 Step 2, Open the door and remove the following 3 screws, and then remove the cover: Step 3, Remove the 2 E-Rings on both side of this roller...
  • Page 50 Parts ROLLER_PINC_A5_1 Part No. 59.D0913.002 Name BEARING_MF0805ZZS 53.D0903.203 Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Remove the Cutter Module C115KZ4_ASM (Cutter Module) as to Procedure 6 Step 3, Remove the 2 white clamps shown below: Optional,...
  • Page 51 Parts KR_ROLLER_CAPSTAN_P720L Part No. 53.D1407.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4 Step 2, Open the door and remove the following 3 screws, and then remove the cover Step 3, Remove the back cover as shown below by removing the following screws on both sides...
  • Page 52 Step 4, Unscrew the following screw on the capstan gear as below and pull this gear off, case Note: 2 washers and 1 spring are behind this gear. Step 5, Remove the E-Ring from the other side with the white gear as shown below Step 6, After the above are removed, slightly slide the capstan roller out.
  • Page 53 Parts SNR_RIB_R_BD P720L 011 ROHS Part No. 45.D14RP.011 Name SNR_RIB_L_BD P720L 011 ROHS 45.D14RU.011 Ribbon Size Sensor Combined Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Open the door and remove the following 3 screws, and then remove the cover:...
  • Page 54 Parts SNR_DOOR_ BD P720L A11 ROHS Part No. 45.D14RH.A11 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Then remove the following 2 screws from the side Step 3, Unplug the cable bracket in blue, then unscrew the following to screws to remove this sensor.
  • Page 55 Parts TPH_IF_BD P720L 021 ROHS Part No. 45.D14R6.021 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~4 Step 2, Remove the following cables bracketed in blue, then unscrew the 6 screws circled in red as...
  • Page 56 Parts TPH SUB MODULE P720L Part No. 47.D1402.001 Name T_THERMOPAD_P720L 59.D1412.002 Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~4 Step 2, Unplug the 3 cables bracket in blue, and then unscrew the 2 screws circled in red.
  • Page 57 Parts WIRE LED_INDEX BD ROHS Part No. 40.D1434.R01 Name WIRE SNR_EXIT 210MM ROHS 40.D1402.R01 WIRE SNR_DESKEW 360MM ROHS 40.D1403.R01 M_ROLLER_EXIT_P720L 59.D1402.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Remove the Cutter Unit as to Procedure 6 Step 3,...
  • Page 58 Step 4, Pull this cover upward and slide it down as below: Remember to plug off these sensors before taking the cover out...
  • Page 59 Step 5, Remove the C-ring and take out this gear. Step 6, Then remove this E-ring after removing the gear on Step 4.
  • Page 60 Step 7, Remove this E-ring on the other side, and slide out the roller from the front. M_ROLLER_EXIT_P720L NOTE: there are 2 bearings and 2 E-rings on each side. Step 8, Unscrew 2 screws from each side in order to remove...
  • Page 61 Step 9, Unplug the LED cable from the IF ADF Board. Step 10, Slide the entire paper guide mechanism down as shown below:...
  • Page 62 Step 11, The Cut Sensor and the deskew sensor are visible after removing the paper guide, please unscrew the following 4 screws shown below to remove these 2 sensors WIRE SNR_DESKEW 360MM ROHS WIRE SNR_EXIT 210MM ROHS NOTE: These 2 sensors are identical...
  • Page 63 Step 12, There is only one screw holding this LED, please unscrew it then remove this LED with its wire. WIRE LED_INDEX BD ROHS...
  • Page 64 Parts WIRE SNR_CAM_PNC 90MM ROHS Part No. 40.D1408.R01 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~4 Step 2, Open the door and remove the following 3 screws, and then remove the cover Step 3, Remove the back cover as shown below by removing the following screws on both sides...
  • Page 65 Step 4, Unscrew the 2 screws that hold this sensor, and then unplug the cable. WIRE SNR_CAM_PNC 90MM ROHS...
  • Page 66 Parts WIRE SMART_CHIP 420MM ROHS Part No. 40.D1414.R01 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~4 Step 2, Unscrew the following screw to separate two plates Step 3, Turn the plate backwards, and unscrew these 4 screws and unplug the cable WIRE SMART_CHIP 420MM ROHS...
  • Page 67 Parts WIRE SNR_CAM_TPH 250MM ROHS Part No. 40.D1416.R02 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2. Unscrew the following 2 screws and slide the sensor out. Step 3.
  • Page 68 Parts KR_ROLLER_PLATEN_P720L (Platen Roller) Part No. 59.D1401.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2, Remove the screw on each side bracket in red as below: Step 3, Slide the following part away from the platen roller to prevent it from blocking the exit.
  • Page 69 Step 4, Remove the E-rings from both side of the platen roller and slide the roller out. There are 2 bearings on both sides of the platen roller and also inside the roller.
  • Page 70 Parts ADF_IF_BD P720L 021 ROHS Part No. 45.D14RA.021 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Remove the 2 cables, 4 screws and the connectors as shown below:...
  • Page 71 Parts ASM MOOTR CAPSTAN ASSY Part No. 47.D1406.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Front Cover as to Procedure 1 Step 4~5 Step 2, Unscrew the 2 screws shown below and unplug the cable ASM MOOTR CAPSTAN ASSY...
  • Page 72 Parts ASM_MOTOR_CAM_TPH_P720L Part No. 46.D1407.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~4 Step 2, Remove the following screws from the Linkage module and unplug the cable ASM_MOTOR_CAM_TPH_P720L...
  • Page 73 Parts Cam Pinch Motor Assy Part No. 48.D1412.001 Name Tools Phillips screwdriver (#2), screwdriver (small) Procedure Step 1, Remove the Back Cover as to Procedure 22 Step 3 Step 2, Remove the cutter module as to Procedure 6 Step 3, Unscrew 4 screws from the back and pull the motor out through the bottom, and please remember to unplug the motor cable from the IF ADF board.
  • Page 74 Parts Name Assy Ribbon Take Motor Part No. 46.D1409.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2, Please unscrew these 4 screws and remove the spring Step 3, Open the binders that are holding the motor wires.
  • Page 75 If the Linkage is blocking your from reaching the wire binders, please turn the following screw anti-clock wise to move it down. Step 4, Unplug the wire from the main board, and pull the wires out.
  • Page 76 Step 5, Then slide the motor out Step 6 Uncrew the motor from its frame...
  • Page 77 Parts Name Assy Ribbon Supply Motor Part No. 46.D1408.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2, Please unscrew these 3 screws and remove the spring Step 3, Please unscrew these 2 screws, then unplug the sensor cable.
  • Page 78 Step 4, Open the binders that are holding the motor wires as to procedure 26, step 3. Step 5, Unplug the wire from the main board, and pull the wires out. Step 6, Then slide the motor out...
  • Page 79 Parts Name T_PLATE_PEELER_SUS_U_MYLAR Part No. 51.D1450.013 (T_MYLAR_REFLECT_RBN) 56.D1453.001 Tools Phillips screwdriver (#2), screwdriver (small) Procedure No. Step 1, Remove the Sides and Top Cover as to Procedure 1 Step 1~3 Step 2, Paste the (T_MYLAR_REFLECT_RBN) on the peeler press, there should be 3 of them, follow the marks on the peeler and paste them into it.
  • Page 80 Step 4, Unscrew the 2 screws that are holding the peeler press on both sides. please make sure the gap of the screw is within 0.1mm:...

  • Page 81: Chapter 9: Adjustment

    Chapter 9: Adjustment 9-1 CAM TPH Alignment Procedure First disassemble the appearance cover (disassembly procedure 1), then check and do the following procedure: You can use a screw driver to move the linkage backward or forward as per your requirement. Penetrate through the outer case to the gear, then to the linkage...
  • Page 82 Penetrate through the outer case to the gear, then to the linkage...
  • Page 83 Hole on the linkage Hole on the Gear Hole on the outer case...

  • Page 84: Adf Cam Alignment Procedure

    9-2 ADF CAM Alignment Procedure First disassemble the appearance cover (disassembly procedure 1) The ADF CAM is located at the following place: Remove the E-Ring and turn the ADF CAM to its correct position by penetrating the hole through gear to the plate.

  • Page 85: Tph Adjustment Procedure

    59.D1412.002 48.D1419.001 The TPH (Thermal Print Head) for P720L is an assembly part with cables, and the thermal print head itself. After replacing the TPH use the OHM to adjust the voltage with the System Mode and compared with the Voltage chart below:...
  • Page 86 Enter the system mode by pressing all 4 buttons simultaneously until the LCM shows “SYSTEM MODE” as below: Press Menu and the first selection will be “ADJUST TPH VOLTAGE” After you press EXEC, you can choose whether to printer the comparison chart, either way it will go to the next step.
  • Page 87 Compare the following Voltage with the above chart to adjust the recommended voltage; there can be slight differences depend on how dense you want your printout to be, we suggest not over +/- 1.5V After setup the voltage, system will ask if you want to print a final chart, either way the system will save the value you selected.

  • Page 88: Ribbon Sensor Adjustment Procedure

    9-4 Ribbon Sensor Adjustment Procedure After entering the SYSTEM MODE, then press MENU twice and the following screen will appear System will remind you to remove Ribbon and Paper if they are still inside. Request Value is to check the current status of the ribbon sensors...
  • Page 89 Calibration will set the value to working condition, if value is still bad either clean the reflection or replace sensor Suggested Value is over 150 for A, B, C. After you have calibrated the ribbon voltage values, you can use the following ribbon detection to test it.

  • Page 90: Motor Adjustment Procedure

    9-5 Motor Adjustment Procedure After entering the SYSTEM MODE, then press MENU continuously until and the following screen will appears System will remind you to remove Ribbon and Paper if they are still inside. After you press EXEC, you will hear the motors moving sound, and after several seconds and the following screen will appear.

  • Page 91: Cam Position Adjustment Procedure

    9-6 Cam Position Adjustment Procedure After entering the SYSTEM MODE, then press MENU continuously until and the following screen will appears You can move from CAM Position 1~3 accordingly by pressing the left and right button NOTE: Improper adjustment can damage the printer, please use only when necessary...

  • Page 92: Pinch Position Adjustment Procedure

    9-7 Pinch Position Adjustment Procedure After entering the SYSTEM MODE, then press MENU continuously until and the following screen will appears You can move from PINCH Position 1~4 accordingly by pressing the left and right button NOTE: Improper adjustment can damage the printer, please use only when necessary...

  • Page 93: Chapter 10: Error Message

    Chapter 10: Error Message LCM display Reason Solution Cover open 0100 Cover open 1. Make sure the door is closed. 2. Make sure door sensor is connected Cover open fail 0101 Open cover fail properly 3. Change door sensor if needed. IC Chip Missing 0200 No IC chip 1.
  • Page 94 LCM display Reason Solution During printing the exit Paper Jam 04 0503 sensor does not sees the Check the exit (cut) sensor paper Jam at exit sensor when Paper Jam 05 0504 Check the exit(cut) and deskew sensor printer is doing de-skew The type of paper does 1.

  • Page 95: Chapter 11: Q & A

    Chapter 11: Q & A Precaution: Please make sure your printer is powered-on, when closing the door; and wait at least 5 seconds before powering off the printer. How to open front door under power off status: Step 1: Disassemble the appearance cover and lift the linkage by turning the following screw Lift up the Linkage Put down the Linkage...
  • Page 96 Step 2: Pull the lever up so that the door can be opened. Lever Lever Way to remove paper /ribbon jam : Paper Jam: After powering on the printer, press OPEN, and open the door, then power it off. Take out the ribbon. Pull the paper gently with fingers holding both edges of the jammed paper to prevent touring it apart.
  • Page 97 Ribbon Jam After powering on the printer, press OPEN, and open the door, then power it off. Remove all left over prints or stained. If there is any ribbons stick on to the paper, then you’ll need to follow the paper jam procedure above with this procedure. If the ribbon is broken, please glue it back firmly as show below: Put the ribbon back to the machine Roll the ribbon until the repaired section has been rolled in.
  • Page 98 4. After the motor has been removed, then you’ll be able to move the linkage by turning the gears shown below. Turn this clock-wise till the end 5. The cam gear shown above should be turned clock-wise till it reaches the end. (Locked and cannot be moved) 6.
  • Page 99 7. If the position is alright, then screw the motor back. Wire should be around it, and not under neat the motor 8. Assemble the cover back, then power on and see if the cover is moving properly. How to enter “system mode” & “CSD Function”: System Mode : After the printer has been powered on, press the following 4 buttons simultaneously CSD Function : After the printer has been powered on, press the following 2 buttons simultaneously You can use this function to...
  • Page 100 How to print status chart and test chart? After you enter the CSD Function shown above, press MENU and you can print the test chart and status chart The Press EXEC to print Inside the Status Chart, you will find the print count, Error Message, Firmware version, please contact HiTi regional offices for details of this status chart How to check physical damage of the Thermal Print Head? Please choose a magnifier that can expand to 150X to check the thermal print head for physical...

  • Page 101: Chapter 12: Periodic Inspection

    Chapter 12: Periodic Inspection Periodic inspection is performed according to the following schedule. If problem is detected during the inspection, adjustment or replacement of parts may be necessary. " " ! ! ! & ! & . / ( . ! ! with ¡...
  • Page 102 Inspection Items Inspection Items Inspection Contents Perform test printing, and replace the Thermal Head ASSY if the following Thermal Head problem occurs. (1)Visible white line on the printing output (pixel fail) Roll the Platen Roller to check for unevenness or scratches on the surface. Roller_Platen Replace the platen roller if problem occurs with the output.

  • Page 103: Chapter 13: Contact Information

    (RBN_Supply) Chapter 13: Contact Information Website: www.hiti.com Email: service2@hiti.com HiTi Digital, Inc. Taiwan (Asia) - Headquarters 9F., No.225, Sec. 3, Beixin Rd., Xindian Dist., Xinbei City 231, Taiwan TEL: +886-2-2912-6268 FAX: +886-2-2912-6118 Branch (Office) Locations: China No.58, XinQing Road, Suzhou Industrial Park, JiangSu, China...
  • Page 104 TEL: +31-40-256-5166 FAX: +31-40-290-3176 India # 401/402, 4th floor, 96, Siddharth Building, Nehru Place, New Delhi 110019 TEL: +91-11-4180-8191 FAX: +91-11-4180-8193 Middle East & Africa Office No. 1608, Indigo Icon Tower, JLT, Dubai - U.A.E. TEL: +971-4-3674547 FAX: +971-4-3674221 Mexico (South America) Agustin Gonzalez de Cossio No.

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