Fujitsu Impact 3650 Maintenance Manual
  1. Manuals
  2. Brands
  3. Fujitsu Manuals
  4. Printer
  5. Impact 3650
  6. Maintenance manual

Fujitsu Impact 3650 Maintenance Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Impact 3650
SERIAL PRINTER

MAINTENANCE MANUAL

FUJITSU ISOTEC LIMITED
FUJITSU ISOTEC LIMITED Proprietary Confidential
1

Advertisement

Table of Contents
loading

Related Manuals for Fujitsu Impact 3650

Summary of Contents for Fujitsu Impact 3650

  • Page 1: Maintenance Manual

    Impact 3650 SERIAL PRINTER MAINTENANCE MANUAL FUJITSU ISOTEC LIMITED FUJITSU ISOTEC LIMITED Proprietary Confidential...
  • Page 2 No part of this manual may be reproduced in any form without permission. PREFACE This manual is for engineers who operate, install, or maintain the impact 3650 printer, and covers: Chapter 1: Printer specifications, performance, and configuration Chapter 2: Unpacking, performance check, and connection...

  • Page 3: Table Of Contents

    CONTENTS CONTENTS..............................3 CHAPTER 1 PRINTER SPECIFICATIONS, PERFORMANCE, AND CONFIGURATION......7 1.1 Overview............................7 1.2 Equipment Structure ........................7 1.2.1 Overview ..........................7 1.2.2 Model configuration ........................7 1.2.3 Structure...........................8 (1) Exterior components ......................10 (2) Printing mechanism........................12 (3) Lower cover..........................14 (4) Option and consumables......................15 CHAPTER 2 UNPACKING, PERFORMANCE CHECK, AND CONNECTION ........16 2.1 Overview............................16 2.2 Notes on Installation ........................16 2.3 Unpacking.............................17...
  • Page 4 4.5 Preventive Maintenance .......................35 4.6 Part Drawings ..........................35 4.7 Parts That must not be Disassembled ..................36 4.8 Level 1 Maintenance........................37 4.9 Level 2 maintenance........................38 4.9.1 Parts replacement ........................38 (1) Tractor Unit removal and installation Front feed tractor............39 (2) Cut Sheet Feeder removal and installation................41 (3) Stacker Plate removal and installation..................43 (4) Stacker Unit removal and installation ..................44 (5) Paper Table removal and installation..................45...
  • Page 5 (36) Ribbon Rope ASY replacement....................78 (37) Card Guide ASY replacement ....................79 (38) TOFL/R sensor ASY replacement ..................81 (39) Carriage Unit and Stay Shaft replacement ................82 (40) SP Timing Belt replacement ....................83 (41) SP Tension bracket replacement ..................84 (42) LF Timing Belt replacement....................86 (43) Platen Roll replacement .......................87 (44) Nip Spring 1/2 replacement ....................89 (45) Nip Roller replacement......................90...
  • Page 6 5.2.2.1 Paper path selection mechanism (HCPP)..............123 5.2.2.2 Paper feed operation .....................125 5.2.2.3 Paper loading and ejection operation (auto loading)............128 5.3 Electrical Operation........................129 5.3.1 Printed Circuit Boards and Basic Configuration..............129 5.3.1.1 Outline of Printed Circuit Boards..................130 5.3.2 Control Circuit Operation......................134 5.3.2.1 Printer Special Controller (MB90706) ................134 5.3.2.2 Memory Circuit Control ....................135 5.3.2.3 Centronics Controller .....................137 5.3.2.4 The MPU(MB89P585) has the following main functions ..........139...

  • Page 7: Chapter 1 Printer Specifications, Performance, And Configuration

    CHAPTER 1 PRINTER SPECIFICATIONS, PERFORMANCE, AND CONFIGURATION 1.1 Overview This manual is for maintenance engineers, and covers overall this impact 3650 printer maintenance, together with detailed information such as troubleshooting and component replacement. Recommended references are: Impact 3650 Printer Parts Catalogue...

  • Page 8: Structure

    TR motor HCPP motor Power supply HCPPHP SW Connector Board PS Sensors AC SWITCH assembly Nip Roller assembly FTRPE Sensors AC INLET assembly Dv Roller assembly RTRPE Sensors Platen Roller assembly Lower cover assembly Figure 1.1 Structure of the impact 3650...
  • Page 9 Unit HCPP Connector board Motor motor INTER HCPP HP LOCK Motor FTRPE sensor sensors Motor 1 Motor driver Motor 2 Option board RS232C ROM Board Centro Power supply Control Panel FCSF inlet Figure 1.2 Block Diagram of the impact 3650...

  • Page 10: Exterior Components

    (1) Exterior components This section gives information on exterior components of the printer: covers, removable mechanism units,etc. Figure 1.3 Exterior components of the impact 3650...
  • Page 11 The interface cable connector is on the right side of the printer, as seen from the front of the upper cover, so the interface cable does not interfere with the paper feed path. Figure 1.4 Interface type of the impact 3650 b. Front cover The front cover is opened to replace the ribbon cartridge.

  • Page 12: Printing Mechanism

    (2) Printing mechanism Stay shaft Carriage Ribbon cartridge Stepping motor for Print head carriage drive mechanism HCPP motor APTC mechanism Paper feed mechanism HCPP mechanism Figure 1.6 Mechanism of the impact 3650...
  • Page 13 The printing mechanism fit into the bottom cover. And Upper Cover holds it in position. a. Carriage The carriage supports the removable 24-wire print head and the ribbon cartridge, and slides left and right on the stay shaft. The ribbon feed gear system moves the ribbon in one direction regardless of carriage movement.

  • Page 14: Lower Cover

    ROM board AC inlet CSF connector Lower cover Figure 1.7 Electric components of the impact 3650 a. Lower cover The Lower cover supports the printer mechanism and electric units as follows. b. ROM board (control board with flash ROM) The ROM board controls the host interface, control panel, and printing mechanism using an MPU and an LSI circuit.

  • Page 15: Option And Consumables

    Cut-sheet feeders A cut-sheet feeder allows both single-part cut sheets and multi-part cut sheets to be fed automatically. The SF940 single-bin feeder is available for the impact 3650. b. Tractor unit An additional tractor unit can be installed in the printer. Because the standard tractor unit is installed at the front of the printer at shipment, the additional tractor is installed at the rear of the printer.

  • Page 16: Chapter 2 Unpacking, Performance Check, And Connection

    CHAPTER 2 UNPACKING, PERFORMANCE CHECK, AND CONNECTION 2.1 Overview The impact 3650 printer comes packed for transportation. After unpacking and before installation, the printer must undergo self-test printing. Installation requires minimum time and expense. 2.2 Notes on Installation For best results, note the following points when installing the paper: ・Place the printer on a level, vibration-free surface.

  • Page 17: Unpacking

    2.3 Unpacking Unpacking the printer as follows(Figure 2.1) 1. Open the carton and remove Rear stacker, Ribbon cartridge and Cushion L/R. 2. Lift up the printer using the grip at right and left of the printer. 3. Take out accessories (Power cord, Manual). Figure 2.1 Unpacking the printer and accessories...
  • Page 18 4. Set the paper table as follows. Figure 2.2 Setting the paper table 5. Remove the Block FC. 6.Open the front cover and remove the cardboard shipping restraint holding the carriage in place Figure 2.3 Removing the shipping materials 7.Store the original shipping carton and packing materials for future use in moving or shipping the printer.

  • Page 19: Inspection After Unpacking

    2.4 Inspection after Unpacking 1. Carefully check assemblies and accessories for visible damage. 2. Install the ribbon cartridge. See the User’s Manual for details. 3. Check the rated voltage or the printer and AC power outlet, then connect the AC power cord between the printer and AC power outlet.

  • Page 20: Chapter 3 Troubleshooting

    Section 3.2 explains error displays on the control panel that help clarify the cause of a problem. Section 3.3 explains the self-correction functions of the impact 3650 printer. For replacement and adjustment after recovery, see Chapter 4.

  • Page 21: Problems At Power-On Initialization (Part 002/3)

    3.1.1 Problems at power-on initialization (part 002/3) Symptom Cause Response 3 The POWER lamp is After the POWER lamp goes The control board Replace and initialize on, simultaneous blinking of is defective. the control board. all other lamps is not performed.

  • Page 22: Problems At Power-On Initialization (Part 003/3)

    3.1.1 Problems at power-on initialization (part 003/3) Symptom Cause Response 4 The PAPER OUT lamp After the POWER lamp goes A ROM or RAM Replace and initialize blinks. on, simultaneous blinking of alarm is detected. the driver board. all other lamps is not Low-voltage alarm is •...

  • Page 23: Problems Related To Printing (Part 001/2)

    3.1.2 Problems related to printing (part 001/2) Symptom Cause Response 1 The POWER lamp goes Turn off the power, then wait The accidental fire • It’s difficult to pinpoint off during printing. for about 10 minutes and turn check alarm is a cause.

  • Page 24: Problems Related To Printing(Part 002/2)

    3.1.2 Problems related to printing(part 002/2) Symptom Cause Response 4 Data sent from the host Printing operation is not The interface cable is Connect the interface is not printed at all. performed at all. not connected cable properly. Data cannot be received properly.

  • Page 25: Problems Related To Printing Result

    3.1.3 Problems related to printing result Symptom Cause Response 1 The data sent from the Self-test printing is The setup mode Enter setup mode and host does not match the performed normally. setting is invalid. change the mode setting print results. properly.

  • Page 26: Problems Related To Print Quality (Part 001/2)

    3.1.4 Problems related to print quality (part 001/2) Symptom Cause Response 1 A dot is missing or an excess dot is printed. The print head is Replace the print head. (See other items about blurring of the top or bottom defective.

  • Page 27: Problems Related To Print Quality (Part 002/2)

    3.1.4 Problems related to print quality (part 002/2) Symptom Cause Response 5 Printing is partly blank or the ribbon is out of place. • The manual paper • Adjust the manual paper thickness adjustment thickness adjustment dial The ribbon is loose. dial is set improperly.

  • Page 28: Problems Related To Paper Feed (Part 001/2)

    3.1.5 Problems related to paper feed (part 001/2) Symptom Cause Response 1 Paper selection cannot be performed properly. • The paper selection HCPP • Replace the HCPP motor does not work motor. • HCPPSW ASY is defective. • Replace the HCPPSW •...

  • Page 29: Problems Related To Paper Feed (Part 002/2)

    3.1.5 Problems related to paper feed (part 002/2) Symptom Cause Response 9 Paper skews or a paper jam occurs. • Paper is set improperly. • Set paper properly. • Paper is defective. • Replace paper • The manual paper thickness (with that conforming to adjustment dial is set the media specifications)

  • Page 30: Problems Related To The Control Panel

    3.1.6 Problems related to the control panel Symptom Cause Response 1 Switches on the control panel are disabled. • The printer is online. • Turn the printer offline. • The connection between • Connect the cable the control panel board properly, or replace the and control board is cable.

  • Page 31: Error Display

    3.2 Error Display This printer indicates errors on the control panel. There are three groups of errors as explained below. (1) Warning errors The buzzer sounds and the ONLINE indicator still lights. For a data transmission error in the interface, only the buzzer indicates the error. The printer continues printing unless placed offline or other groups of errors occur.

  • Page 32: Operational Errors

    (2) Operational errors The PAPER OUT indicator is lighted. The buzzer sounds, the PAPER OUT indicator lights up, and the printer is placed offline when operation is required. Refer to Table 3.2. Table 3.2 Operational errors Error name Cause of the error Recovery Paper end (PE) The printer has run out of continuous forms.
  • Page 33 The PAPER OUT lamp blinks with other lamps. For a circuit malfunction detected in the printer: • The printer stops printing immediately. • The ONLINE indicator turns off. • All buttons of the control panel are invalid. Table 3.4 Fatal alarms displayed on control panel Lamp Condition of occurrence Alarm name...

  • Page 34: Chapter 4 Maintenance

    This chapter explains the maintenance levels 1 and 2 for cleaning, lubrication, inspection, and adjustment of the Impact 3650 printer 4.1 Overview Designed using the latest technology, the impact 3650 printer offers high reliability and easy maintenance. Parts requiring lubrication and adjustment have been reduced and the replacement of defective parts made easier than previous models.

  • Page 35: Maintenance Levels

    4.4 Maintenance levels Maintenance for the impact 3650 printer is done at two levels. Level 1 maintenance includes cleaning and lubrication. Level 2 maintenance includes level 1 items, plus replacement of PC boards, units, and mechanical subassemblies, and adjustment after replacement.

  • Page 36: Parts That Must Not Be Disassembled

    4.7 Parts That must not be Disassembled This section gives the locations of parts that must not be disassembled. Table 4.2 lists components not to be disassembled and whose mounting screws are not to be loosened or removed. Parts not to be Disassembled Components Parts Remark...

  • Page 37: Level 1 Maintenance

    Level 1 maintenance includes only cleaning and lubrication and lubrication. These can be performed without removing covers although Figure 4.3 shows the printer with the covers removed. Check the impact 3650 printer inside for paper particles, dust, and dirt, and remove these as explained below. After cleaning, lubricate moving parts.

  • Page 38: Level 2 Maintenance

    4.9 Level 2 maintenance Level 2 maintenance includes lubrication, adjustment, and parts replacement. Level 1 maintenance should be done at the same time. 4.9.1 Parts replacement Remember the following notes when replacing any component. Keep working area clean. Turn off power to equipment and unplug it before disassembled. Follow procedures carefully.

  • Page 39: Tractor Unit Removal And Installation Front Feed Tractor

    (1) Tractor Unit removal and installation Front feed tractor. Front feed tractor. Removal 1. Raise the paper table. 2. During pressing the Rock lever, Lift the left and right sides of the tractor unit, and then remove the tractor unit. Figure 4.4 Front feed tractor Removal Installation 1.
  • Page 40 Rear feed tractor. Removal 1. During pressing the Rock lever, Lift the left and right sides of the tractor unit, and then remove the tractor unit. Figure 4.6 Rear feed tractor removal Installation 1. Engage the U-grooves on the left and right sides of the tractor unit with the counterpart pins on the printer. (fit the ditch of left pin, there is any ditch of the right pin) 2.

  • Page 41: Cut Sheet Feeder Removal And Installation

    (2) Cut Sheet Feeder removal and installation Front cut sheet feeder Removal 1. Turn off the printer power. 2. Disconnect the cut sheet feeder cable. 3. Raise the paper table, then hold both ends of the cut sheet feeder and pull it off. Installation 1.
  • Page 42 Rear cut sheet feeder Removal 1. Turn off the printer power. 2. Disconnect the cut sheet feeder connector. 3. Raise the stacker table, then hold both ends of the cut sheet feeder and pull it off. Installation 1. Turn off the printer power. 2.

  • Page 43: Stacker Plate Removal And Installation

    (3) Stacker Plate removal and installation Removal 1. Raise the stacker plate in the direction indicated by an arrow. 2. Stretch the left and right sides of the stacker frame outward to disengage the stacker plate projections from the frame. Installation 1.

  • Page 44: Stacker Unit Removal And Installation

    (4) Stacker Unit removal and installation Removal 1. While pressing down the lock levers on the left and right sides of the stacker unit, pull out the stacker unit to the back of the printer. Installation 1. Install the stacker unit by reversing the removal procedure. Lock lever Stacker unit Lock lever...

  • Page 45: Paper Table Removal And Installation

    (5) Paper Table removal and installation Removal 1. After opening the paper table and adjusting it to a tilted position, remove the paper table by lifting it to separate the left and right protrusions on the paper table ends from the grooves on the cover. Figure 4.12 Paper Table removal Installation 1.

  • Page 46: Lan Card Removal And Installation

    (6) LAN card removal and installation Removal 1. Remove the two screws. 2. Remove the LAN card. Figure 4.14 LAN card removal Installation 1. Install the LAN card by reversing the removal procedure. Note; Take care to insert the card into the guide rail correctly. Setup of a LAN card is necessary.

  • Page 47: Flap Replacement

    (7) Flap replacement Removal 1. Remove the paper table and stacker unit. 2. Remove the flap. Installation 1. Install the flap by reversing the removal procedure. Flap Paper table Stacker plate Stacker frame Flap Figure 4.16 Flap removal and Installation...

  • Page 48: Ribbon Cassette Replacement

    (8) Ribbon Cassette replacement Removal 1. Close the front cover, and turn the power on. Then the Print Head move to ribbon replace position. 2. Turn the power off. And Open the front cover. 3. Press the ribbon release levers located on both side of the cartridge and carefully lift the cartridge out of the printer.
  • Page 49 3. Place the two mounting pins on the ribbon support brackets of the head cartridge. (The two mounting pins are located on the sides of the ribbon release levers.) Insert the ribbon so that the ribbon falls between the nose of the print head and the plastic print guide.

  • Page 50: Print Head Replacement

    (9) Print head replacement At printing or after printing, print head is high Caution Hot temperature. Don t touch the print head still cool. Removal 1. Turn off the printer. 2. Open the front cover of the printer and remove the ribbon cartridge. 3.

  • Page 51: Control Panel Unit Removal And Installation

    (10) Control Panel Unit removal and installation Removal 1. Open the front cover. 2. Unhook the control panel case at three positions, then pull out the control panel unit to the front. 3. Disconnect cable from the control panel board. Installation 1.

  • Page 52: Front Cover Removal And Installation

    (11) Front Cover removal and installation Removal 1. Open the front cover . 2. Pull The hinge of the Front Cover slantwise then remove the front cover. Installation 1. Install the front cover by reversing the removal procedure. Front cover Figure 4.23 Removing the Front cover...

  • Page 53: Upper Cover Removal And Installation

    (12) Upper Cover removal and Installation Removal 1. Remove the control panel. 2. Remove the two screws securing the upper cover. 3. Raise the paper table. 4. Disengage the hooks on the front left and right of the upper cover, then lift off the upper cover. 5.

  • Page 54: Print Mechanism Unit Removal And Installation

    (13) Print Mechanism Unit removal and installation Removal * Do this work on a no slippery level bench so that the mechanism can be tilted stably during replacement. On a slippery surface like paper, the printer may slide when the mechanism is tilted. It deteriorates the work efficiency. Side plate 1.
  • Page 55 8. Unplug cables from mechanism unit. (SP motor ,LF motor, TR motor, Carrier cable (3 flat cables),RCSF cable, Relay cable. Total 8 cables) 9. Lift the mechanism unit higher and remove it. Relay cable LF Motor cable TR Motor cable SP motor cables Carrier cable R-CSF...

  • Page 56: Power Supply Unit Removal And Installation

    (14) Power Supply Unit removal and installation Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the 3 screws securing the power supply unit. 4. Disconnect the AC switch assembly connector, reactor connector, and power supply unit connector, then remove the power supply unit.

  • Page 57: Rom Board (Main Board) Replacement

    (15) ROM Board (Main Board) replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the LAN cables. Remove the bracket (2 screws). 4. Remove the 6 screws securing the ROM board (4 on the top and 2 on the side), and remove the ROM board. 5.

  • Page 58: Lan Relay Pca / Lan Cable 17P Replacement

    (16) LAN RELAY PCA / LAN cable 17P replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the two LAN cables. Remove the bracket (2 screws). 4. Remove the screws securing the LAN RELAY PCA. 5.

  • Page 59: Rs232C Board Replacement

    (17) RS232C BOARD replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the two exclusive screws and RS232C BOARD. Installation 1. Install the RS232C BOARD and two exclusive screws by reversing the removal procedure. RS232C BOARD With two exclusive screws Figure 4.30 RS232C Board removal and installation...

  • Page 60: Ac Switch Asy Removal And Installation

    (18) AC Switch ASY removal and installation Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the AC switch assembly from the lower cover. Installation 1. Install the AC switch assembly by reversing the removal procedure. AC switch assembly Red(upper side) White(lower side)

  • Page 61: Inlet Asy Replacement

    (19) Inlet ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the two screws securing the inlet and one screw securing the frame ground wire, and 4. remove the inlet assembly. Installation 1. Install the inlet assembly by reversing the removal procedure. 2.

  • Page 62: Fan Unit 2 Replacement

    (20) FAN UNIT 2 replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the FAN UNIT 2 cable from ROM BOARD. 4. Remove the two screws securing the FAN UNIT 2. Installation 1. Install the FAN UNIT 2 by reversing the removal procedure. FAN UNIT 2 CABLE FAN UNIT 2 Screws...

  • Page 63: Control Panel Cable Replacement

    (21) Control Panel Cable replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the FAN UNIT 2. 4. Remove the 4 operator cable covers and then disconnect the operator cable from the ROM board. Installation 1.

  • Page 64: F-Csf Cable/Csf Connector Pca Replacement

    (22) F-CSF Cable/CSF Connector PCA replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the FAN UNIT 2. 4. Disconnect the cable from the front CSF PCA connector. 5. Remove the two screws securing the front CSF PCA to remove the PCA. Installation 1.

  • Page 65: R-Csf Cable/Csf Connector Replacement

    (23) R-CSF Cable/CSF Connector replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the screw securing the rear CSF PCA and remove the PCA. Installation 1. Install the rear CSF PCA by reversing the removal procedure.

  • Page 66: Relay Cable Replacement

    (24) Relay Cable replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Disconnect the relay cable from the sensor PCA connector. Installation 1. Install the relay cable by reversing the removal procedure. Sensor PCA Relay cable Figure 4.40 Relay cable replacement...

  • Page 67: Sensor Pca Replacement

    (25) Sensor PCA replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Disconnect the mechanism cable and flat cable from the sensor PCA connectors. 4. Separate and remove the sensor PCA from the two saddles by using long-nosed pliers. Installation 1.

  • Page 68: Sp Motor Asy Replacement

    (26) SP Motor ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Loosen a screw securing the fan unit and turn the fan unit so that the screws securing SP motor may be removed 4.

  • Page 69: Lf Motor Removal And Installation

    (27) LF Motor removal and installation Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. Note 3. Remove the idle gear LF bracket needs adjustment. Putting the mark 4. Remove the screws fixing lf motor before disassembly is gives aim to adjustment for 5.

  • Page 70: Tr Motor Removal And Installation

    (28) TR Motor removal and installation Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the shift gear and shift spring. 4. Remove the two screws securing the TR motor. 5. Remove the TR motor from the side frame. Installation 1.

  • Page 71: Aptc Unit Replacement

    (29) APTC Unit replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the two screws and APTC bracket. Installation 1. Install the APTC unit by reversing the removal procedure. APTC motor APTC bracket Screw (APTC motor) （backside）...

  • Page 72: Hcpp Motor Replacement

    (30) HCPP Motor replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the HCPP gear. 4. Remove the two screws securing the HCPP motor. 5. Disconnect cable from the sensor PCA connector, then remove the HCPP motor from the side frame. Installation 1.

  • Page 73: Sp Fan Motor Replacement

    (31) SP FAN motor replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the screw securing the bracket , then remove fan unit. Installation 1. Install the fan unit by reversing the removal procedure. FAN UNIT 1 Screws Figure 4.47 SP fan removal and installation...

  • Page 74: Inlk Sw Asy Replacement

    (32) INLK SW ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the SW holder and INLK SW ASY. Installation 1. Install the INLK SW ASY by reversing the removal procedure. INLK SW ASY SW holder SW holder INLK SW ASY...

  • Page 75: Ps Pca Replacement

    (33) PS PCA replacement Removal 1. Remove the upper cover. 2. Release the PS PCA from the three hooks on the PS holder. 3. Disconnect the cable from the connector and remove the PS PCA. Installation 1. Install the reactor by reversing the removal procedure. PS PCA PS holder Cable...

  • Page 76: Hcpp Switch Asy Replacement

    (34) HCPP switch ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the rubber foot from side frame L, then unhook the holder at two locations. 4. Disconnect the cable from the sensor PCA connector, and remove the HCPP switch assemble. Installation 1.

  • Page 77: Sensor Cover Tr/Tr Pes Asy Replacement

    (35) Sensor cover TR/TR PES ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Unhook the sensor cover TR and remove the sensor cover TR. 4. Unhook the TRPES ASY and remove the TRPES ASY. 5.

  • Page 78: Ribbon Rope Asy Replacement

    (36) Ribbon Rope ASY replacement Removal 1. Remove the upper cover. 2. Remove the springs on the left and right side of ribbon rope. 3. Remove the ribbon rope. Installation 1. Install the ribbon rope. If necessary, remove the ribbon bracket to lead the ribbon rope under the ribbon pulley. (To remove the ribbon bracket release the craws of the ribbon bracket hooking the carriage.) 2.

  • Page 79: Card Guide Asy Replacement

    (37) Card Guide ASY replacement Removal 1. Remove the upper cover. 2. Remove the screws securing the upper guide F on its left and right, and release it to the front. 3. Remove the print head. 4. Disconnect the TOF1, TOF2, and panel keyboard cables from the carriage PC board. 5.
  • Page 80 Proper cable forming of card guide. 1. Lead the cables in front of the guide part of the carrier frame (aluminum die-cast parts). （Don’t lead wires between the guide part and upper guide R or breaking wire may cause because of cables get into touch with upper guide F.）...

  • Page 81: Tofl/R Sensor Asy Replacement

    (38) TOFL/R sensor ASY replacement Removal 1. Remove the upper cover. 2. Remove the screws securing the upper guide F on its left and right, and release it to the front. 3. Remove the print head. 4. Disconnect the TOFL/R cable from the carriage PC board. 5.

  • Page 82: Carriage Unit And Stay Shaft Replacement

    (39) Carriage Unit and Stay Shaft replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. Note. 3. Release the upper guide F to the front. Don’t remove the screws for upper 4. Remove the SS gear, gear B. angle.

  • Page 83: Sp Timing Belt Replacement

    (40) SP Timing Belt replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the carriage unit. 4. Remove the belt clamp. 5. Remove the timing belt. Difference of teeth position shall be less than 1 teeth. Installation Belt Clamp 1.

  • Page 84: Sp Tension Bracket Replacement

    (41) SP Tension bracket replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the SP motor. 4. Remove the stay bearing so that stay shaft falls downward. (Therefore the purpose of this work is for increasing space for the work which removes a spring, it is omissible.) 5.
  • Page 85 Installation As shown in the right figure, build a tension spring into a new tension bracket. Please attach a new tension bracket and a new spring in a frame. Attach the tension spring (1)Hold firmly the root of a spring hook by long nose prier.. ※Be careful not to give a crack to a shaft.

  • Page 86: Lf Timing Belt Replacement

    (42) LF Timing Belt replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Put the mark to memory the LF tension bracket position. . 4. Remove the LF tension bracket and remove the LF belt. Installation 1.

  • Page 87: Platen Roll Replacement

    (43) Platen Roll replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Before remove the LF tension pulley ASY put the mark to memory its adjusted position. 4. Remove the LF tension pulley ASY and LF belt and Pulley gear. 5.
  • Page 88 7. Turn down the mechanism assembly. 8. Disconnect cables backside of printer mechanism unit, remove 6 screws of lower plate. 9. Remove the bearings and slide in the direction of allow then remove it. Platen roll Screws for lower plate Note: Take care of jamming cables together when install platen cover.

  • Page 89: Nip Spring 1/2 Replacement

    (44) Nip Spring 1/2 replacement Removal 1. Remove the upper cover. 2. Unhook four nip springs 1 (two on each end) and four nip springs 2 (two on each end), and remove the springs. Installation 1. Install nip springs 1 and 2 by reversing the removal procedure. NIP spring1(silver）...

  • Page 90: Nip Roller Replacement

    (45) Nip Roller replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 2. Unhook one sides of 4 nip springs and remove 4 spring holders. 3. Remove the E ring of both side and Nip gear on the left side. 4.

  • Page 91: Dv Roller Asy Replacement

    (46) DV Roller ASY replacement Removal 1. Remove the upper cover. 2. Remove the printer mechanism assembly. 3. Remove the LF bracket (one screw) and LF belt. 4. Remove the two flanges (two E-rings), two DV gears, two nip gears (two E-rings), and one platen gear (one E-ring) from the left of the mechanism assembly.
  • Page 92 10. Remove 8 screws fixing lower guide at base side and front and rear side. Screws Screws Figure 4.66 Removing Lower Guide 11. Shift the lower guide a little upward.
  • Page 93 12. Remove the lower plate. Disconnect cables backside of printer mechanism unit, remove 6 screws of lower plate. 13. Slide the DV rollerr assembly direction of arrow, then remove it. Screws for lower plate Figure 4.67 Removing DV Roller 14. Replace assembled parts on the DV roller. Installation 1.

  • Page 94: Adjustment

    4.9.2 Adjustment (1) Print head gap adjustment Note: This adjustment needs the head gap adjustment jig (special dial gage), so this part is parts that must not be disassembled. If you don’t have head gap adjustment jig, don’t adjust this portion as much as possible. Procedure 1.
  • Page 95 5. Slightly loosen the three screws(a),(b) and (c) on the upper angle. Upper stay Upper angle Screw(b) Screw(c) Screw(a) Hole for adjustment Figure 4.70 Adjustment head gap A=0.00mm±0.01mm 6. Slide the carriage unit to the left end (1st column side) 7.

  • Page 96: Card Guide Position Adjustment

    (2) Card guide position adjustment Note: For improve the precision using the head gap adjustment jig is better. If you don’t have the head gap adjustment jig refer to the another procedure which comes out behind [Using the head gap adjustment jig] This adjustment should be done after print head gap adjustment is finished.
  • Page 97 6. Adjust the head gap to value A, by turning the SS gear. Stopper stud SS gear Stopper of SS gear Figure 4.73 Rotate SS gear A=0.25mm±0.01mm 7. Move the card guide up and down so that APTC SW should be switched into conducting state at the head gap is value A.
  • Page 98 9. Check the gap between the print head and paper after APTC function is operated. Turn the printer off immediately after printing is started. Check the value B by head gap adjustment jig. If the Value B is as follows adjustment is finished. B=0.29mm±0.03mm Paper Platen...

  • Page 99: Card Guide Position Adjustment (Another Way)

    (3) Card guide position adjustment (another way) [Without the head gap adjustment jig] This method uses the gear that is next to the motor pinion instead of head gap adjustment jig. This adjustment should be done after print head gap adjustment is finished. SS gear Stopper 1.
  • Page 100 7. Fasten the rightside screw temporly Fasten the right side screw during pushing right potion of curd guide by light force. 8. Remove the inserted paper. 9. Enter the adjustment mode. During pushing the “ ”,” ”SW, turn the power on. Fix temporary 10.

  • Page 101: Tof Sensor's Voltage Adjustment

    (4) TOF sensor’s voltage adjustment Note This adjustment should be done after card guide adjustment is finished. Please make sure any dust has cleaned under the TOF sensors. 1. Turn the printer power on, then the carriage escape to the maximum gap and move and stop the ribbon replacing position.

  • Page 102: Lf Belt's Tension Adjustment

    (5) LF belt’s tension adjustment 1. Adjust the tension using tension bracket position, so that reaction force is value A when LF belt is lowered 2mm. LF belt Screw Tension bracket Value A = 250gf±20gf (2.45N±0.2N) Figure 4.79 adjusting LF belt tension...

  • Page 103: Vertical Alignment (V-Almnt) Adjustment

    (6) Vertical Alignment (V-ALMNT) adjustment 1. Load the continuous forms paper wider than 356mm (14 inches) from front tractor. 2. Enter adjustment mode. ONLINE”SW + POW ON ,then printing start at “LQ”speed. 3. Check the direction of displacement and adjust the alignment using SW as follows.

  • Page 104: Top-Of-Forms Adjustment (Factory Use)

    (7) Top-of-forms adjustment (factory use) Note . Other adjustment methods are in setup mode. Each adjustment value exists independently in each adjustment mode. Anyway vertical printing position effected by both adjustment value. If vertical printing position is adjusted by set up mode. Don’t adjust this value. Ideally set up mode should be done after this adjustment is satisfied.

  • Page 105: Skew Detection Value Adjustment

    (8) Skew detection value adjustment Note. To correct the vertical span between TOFL and TOFR for correct skew detection. 1. Enter adjustment mode. Turn the power on while pressing the “LOAD” and ” ”SW . 2. Select the cut sheet position. Press the ”PAPER PASS”...

  • Page 106: Lubrication

    4.9.3 Lubrication Lubrication is required only when the printer is overhauled or mechanical components are replaced. Lubrication codes are as follows: 2 – GD – D – O Cycle Amount (1 drop) Type (Mobil oil) 1. No. Sequential number for the location to be lubricated 2.

  • Page 107: Hcpp Mechanism, Stud For Gear

    (2) HCPP mechanism, Stud for gear Lubrication Oil Amount Location Remarks cycle Hole of slide cam Cam surface OC lever L sliding section Axis of OC lever L/R Studs for shift gears 2 points (stud) Studs for LF gears 6-SG-C-O 5-SG-C-O 3-SG-C-O 4-SG-C-O...

  • Page 108: Detent For Dv Roller

    (3) Detent for DV roller Lubrication Oil Amount Location Remarks cycle Spacer Collar NIP roller left side DV roller left side 1-SG-C-O Detent (Mechanism to keep the 2-SG-C-O accurate rotation) Figure 4.84 Detent lubrication (4) Bearings Lubrication Oil Amount Location Remarks cycle Bearings of stay shaft...

  • Page 109: Guide To Slide The Paper Table

    (5) Guide to slide the paper table Lubrication Oil Amount Location Remarks cycle Guide rails of paper table. Studs for gears 1-KF-C-O 2-SG-C-O 1-KF-C-O Figure 4.86 paper table slide guide lubrication...

  • Page 110: Carrier Unit (Ribbon Drive Mechanism)

    (6) Carrier unit (Ribbon drive mechanism) Lubrication Oil Amount Location Remarks cycle Oil felt section 0.6∼0.7CC Surface that RF shaft slides (Carrier) Teeth of RF shaft etc. Axis of pulley and gear Surface that RF shaft slides (Ribbon bracket) Surface that RF shaft slides (Ribbon bracket) 2-SG-C-O 3-SG-C-O...

  • Page 111: Diagnostics

    4.10 Diagnostics This section describes how to use the following diagnostic functions: • SELF-TST • HEX-DUMP These functions are used for checking print quality and diagnosing printer problems. HEX-DUMP also provides useful information for programmers. 4.10.1 Printing the Self-Test The SELF-TST function prints test pages to check how the printer operates independently of your computer. The self-test does not check the interface between the computer and the printer.

  • Page 113: Hex Dump

    4.10.2 Hex dump The HEX-DUMP function prints data and commands in hexadecimal characters and abbreviated control codes. The IBM character set 2 is used for printing (see Appendix E). The HEX-DUMP function is useful for checking whether your computer is sending the correct commands to the printer and whether the printer is executing the commands correctly.
  • Page 114 Sample HEX-DUMP 4. Exit the HEX-DUMP function. Exit the HEX-DUMP function in either of the following ways: • To remain in setup mode, press the LF/FF button. The <<FUNCTION>> menu is then reprinted. For details on other functions, see other sections in this chapter. •...
  • Page 115 4.10.3 Power-on Features for the impact 3650 There are several special tests and setup modes built into the impact 3650 printers. Holding down certain control panel buttons, while turning on the printer, activates these special printer modes. After the printer beeps, the buttons are released.

  • Page 116: Chapter 5 Principles Of Operation

    CHAPTER 5 PRINCIPLES OF OPERATION 5.1 Overview This section explains the principles of the impact 3650 operation. A microprocessor controls the following basic functions: Carriage drive Print head drive Paper feed Figure 5.1 Function sequence...

  • Page 117: Mechanical Operation

    5.2 Mechanical Operation 5.2.1 Printing Operation 5.2.1.1 Print head The print head consists of 24 wires in six rows. The print head has 24 electromagnets that drive armatures with wires. The print head is fastened to the carriage by the lock wire. When not printing, the armature is parked against the stopper by the elasticity of the coil spring.

  • Page 118: Spacing Operation

    5.2.1.2 Spacing operation Figure 5.3 shows spacing mechanism. Spacing operation is performed by the space motor (4-phase pulse motor) mounted on the right side of the side frame. The drive pulley used to move the carriage is mounted on the top of the space motor, and the timing belt is put on the drive pulley.

  • Page 119: Lres (Carriage Position) Detection

    5.2.1.3 LRES (Carriage position) detection The left and right carriage positions are detected using one LRES sensor provided on the back of the carriage and the left and right shield plates provided on the upper stay. The shield plates are different in length in the direction in which the carriage moves.

  • Page 120: Ribbon Feed Mechanism

    5.2.1.4 Ribbon feed mechanism Figure 5.5 shows the ribbon feed mechanism. The ribbon is fed by the rotation of the ribbon feed shaft. The ribbon shaft always rotates in the same direction regardless of whether the carriage moves in direction A or B (left or right).

  • Page 121: Automatic Paper Thickness Control Mechanism

    5.2.1.5 Automatic paper thickness control mechanism The automatic paper thickness control mechanism consists of and the paper surface detection switch on the left side of the card guide. < The head approach mechanism> The mechanism consists of the pulse motor, stay shaft, and gear transmission mechanism. Because stay shaft is designed to work as eccentric cam, the print head is moved up and down by the angle of the stay shaft.

  • Page 122: Skew Detection

    5.2.1.6 Skew detection Skew is detected by two sensors provided on the card guide in the carriage unit when a cut sheet is loaded. The card guide has two sensors: TOFL and TOFR. If a detection difference between the two sensors when the top end of paper passes them is too large, paper is ejected to the front.

  • Page 123: Paper Feed Operation

    5.2.2 Paper Feed Operation 5.2.2.1 Paper path selection mechanism (HCPP) Figure 5.10 Control panel The “PAPER PATH” button on the control panel is used to select cut sheet paper, front-fed continuous forms, and rear-fed continuous forms. The button lights a lamp indicating the type of paper to be used. When the PAPER PATH button is pressed to select the type of paper, the printer automatically operates the applicable components by using power of HCPP motor rotation.
  • Page 124 DV gear Nip roller gear front and rear front and rear Slide cam OC Lever OC cam PL idle gear Gear which drives Timing belt front tractor. Shift gearＦ HCPHP SW Idle gear Gear which drives rear LF Motor Shift gear R TR Motor tractor.

  • Page 125: Paper Feed Operation

    5.2.2.2 Paper feed operation Figure 5.12 shows the driving system of the paper feed mechanism. The LF and TR motors mounted on the frame via gears feed paper. The LF motor operates for both cut sheet paper and continuous forms to rotate the first and second transport rollers and platen roll. The TR motor operates only for continuous forms to rotate the front or rear tractor to feed paper.
  • Page 126 (2) Continuous forms paper feed operation Figure 5.13 shows the paper feed mechanism for continuous forms. Continuous forms paper is loaded with its sprocket holes fitted to the pins on the paper feed tractor belt and is fed by transmitting TR motor power to the transmission mechanism to rotate the tractor belt.
  • Page 127 (3) Cut sheet paper feed operation Figure 5.14 shows the paper feed mechanism for cut sheet paper. The cut sheet paper placed on the paper table, which is not shown in the figure below, against the first roller in the cut sheet feeding slot is fed between the first transport roller and first nip roller, which are driven by the LF motor, and pulled by the second transport roller and second nip roller.

  • Page 128: Paper Loading And Ejection Operation (Auto Loading)

    5.2.2.3 Paper loading and ejection operation (auto loading) Loading the paper is done automatically. < Continuous forms loading operation > After setting continuous forms on the front or rear tractor, press the LOAD button to start loading operation. When the top of paper reaches the paper sensor (mounted on the card guide) shown in Figure 5.15, the paper sensor changes from the “no-paper”...

  • Page 129: Electrical Operation

    5.3 Electrical Operation The main control unit uses the MB90706 controller dedicated to the printer. The controller contains Centronics control and stepping motor control circuits while using 16-bit MPU FFMC-16 as its core element. It thus implements high-speed, compact, and low-cost control circuits. The printer contains a full two-line buffer and performs normal/reverse automatic checking and printing to implement high throughputs.

  • Page 130: Outline Of Printed Circuit Boards

    5.3.1.1 Outline of Printed Circuit Boards Main board (GMC06**) This printed circuit board consists of three basic blocks: the main control circuit, interface circuit, and drive circuit blocks. The main board has the following ten connectors: Name Abbreviation Connection destination １...
  • Page 131 RS232C Centronics Interface Interface Interface Interface RS232C IFCEN BOARD BOARD Main board GMC06** RELAY BOARD See the following page Control panel for the sensor board GAO99BA Space motor Front sheet Front sheet feeder Ｍ feeder connector board FAN 1 Rear sheet Rear sheet driver feeder...
  • Page 132 Main board Sensor board Paper setting GMC06** sensor Rear-fed continuous forms sensor Skew correction motor Front-fed continuous forms sensor Front/rear tractor selection. Skew gear open/close motor correction roller phase position sensor APTC motor APTC reference position sensor Transport roller position sensor Figure 5.3.3 Sensor board peripheral configuration Main board...
  • Page 133 Power supply unit +34V Interface unit Main control unit Driver unit USB 8bit Controller EEPROM Motor driver LAN Board (Option) Head driver Centronics MBCG461 MBCG461 MB90706 driver/receiver 83-525PFV 83-520PF Printer Motor Head controller control LSI control LSI RS Board (Option) Control panel Sensor...

  • Page 134: Control Circuit Operation

    5.3.2 Control Circuit Operation 5.3.2.1 Printer Special Controller (MB90706) Figure 5.3.6 is an MB90706 internal block diagram. FFMC-16 core External interrupt UART INPRM,EXPRM Control Noise Reception resistant external interrupt I/O extension For control panel serial 16-bit timer control For head control Chip select Stepping For peripheral LSI,...

  • Page 135: Memory Circuit Control

    5.3.2.2 Memory Circuit Control Figure 5.3.7 is a memory circuit control block diagram. Defined space capacity MB90706 DRAM Max. 1M Bytes External bus 256k×16 Bit RAS,CAS, PROGRAMROM DRAM control Max. 4M Bytes 1M×16 Bit Chip select address decoder I/O port EEPROM 16K Bits Figure 5.3.7 Memory control block diagram...
  • Page 136 [EEPROM] The MB90706 has a 16K-bit serial transmission EEPROM (equivalent to the M24C16) that contains setup information, mechanism information, and consumables information. If the board is replaced, remove the EEPROM from the board to be replaced and mount it on the replacing board. [ROM] The MB90706 uses a “512K x 16 bits”...

  • Page 137: Centronics Controller

    5.3.2.3 Centronics Controller Figure 5.3.8 is an interface control block diagram. MB90706 Interface board DSTB, DATA1:8, CPU core Centronics Centronics controller Driver/ ACK,BUSY,PE Centronics receiver INPRM,EXPRM Interrup Anti-noise External interrupt interrupt control unit control unit Figure 5.3.8 Interface control block diagram [Centronics interface control] The Centronics interface controller uses the Centronics controller built in the MB90706 as shown in Figure 5.3.8 The INPRM and EXPRM signals, which are forcible reset signals from the host, are used as interrupt signals after...
  • Page 138 (2) Circuit for generating a strobe signal (Ptr Clk) for data transmission from the printer MB90706 *Ptr CLK *ACK 10Pin LS08 *ACK * Ptr Clk [Centronics control circuit] Figure 5.3.9 shows a general timing chart for the Centronics control circuit. The Centronics control circuit latches received data DATA1 to DATA8 to the internal register at the falling edge of data strobe signal *DSTB, and simultaneously sends an interrupt signal to the external interrupt control circuit to...

  • Page 139: The Mpu(Mb89P585) Has The Following Main Functions

    5.3.2.4 The MPU(MB89P585) has the following main functions USB 8bit controller LSI3 (MB89P585) HOST D+,D- UNEGO URESET VBUS USBRQ UDATA1-4 UPRTRQ RQSTATU Figure 5.3.10 MB89P585 block diagram (3) USB interface USB interface signal Signal name Function VBUS Power Data transfer Data transfer Shell Shield...

  • Page 140: Lan Interface

    5.3.2.5 LAN interface LAN interface signal Signal name Function TXO+ output Data transfer+ TXO− output Data transfer- RXI+ input Data transfer+ RXI+ input Data transfer- Specifications ・A transfer mode: 10/100BASE...

  • Page 141: Head Control Lsi (Mbcg46183-520Pf)

    5.3.3 Head Control LSI (MBCG46183-520PF) Figure 5.3.11 is a head control LSI block diagram. A1-A5 Address decoder PD1-PD24 Print head HDTIM controller D00-D15 FLYBK1-FLYBK6 General-purpose input port *RPS BKSION General-purpose output port PWSTOP HALM0-3 SPALMS Alarm detection SPALML circuit LFALMS *DVALM Figure 5.3.11 Head control LSI block diagram...

  • Page 142: Motor Control Lsi (Mbcg46183-525Pfv)

    5.3.4 Motor Control LSI (MBCG46183-525PFV) Figure 5.3.12 is a motor control LSI block diagram. A1-A5 Address decoder *RTRPESC *FTRPESC *RCSFC *FCSFC *HCPPMC *APTCMC *RPMC General-purpose *TOFRSC input port *RPJSC *FPJSC FANALM *GAP *APTCHPS APTCM0-3 HCPPM0-3 RPM0-3 General-purpose FCSFM0-3 output port D00-D15 RCSFM0-3 MLFM02...

  • Page 143: Control Panel Control

    5.3.5 Control Panel Control Figure 5.3.13 is a control panel controller block diagram. Main board (GMC06**) MB90706 External Control panel board (GAO99BA) MBCG47492-502PF Parallel input -> serial Switch con e sion Serial input -> parallel con e sion Figure 5.3.13 Control panel control block diagram Switches and LEDs are provided on the control panel board.

  • Page 144: Motor Control And Drivers

    5.3.6 Motor Control and Drivers This printer has six motors (space motor, line feed motor, tractor motor, front and rear tractor selection gear open/close motor, APTC motor, and skew correction motor) in a standard configuration. It also enables two optional motors for the front and rear cut sheet feeders (the driving circuits are built in the sheet feeders) to be mounted.
  • Page 145 [Space, line feed, tractor, CSF, APTC, and skew correction motor drive circuits] Figure 5.3.15 shows a block diagram of the control and drive circuits for the standard motors in the printer. +34V Current detection resistor Space motor drive MB90706 circuit Space motor FFMC-16 Line feed motor...
  • Page 146 The space motor is rotated as follows: The MPU reads phase excitation data from ROM. The rotation direction and initial excitation phase are set in the control register of the stepping motor control circuit and simultaneously current specification data is written to the current specification register as needed.
  • Page 147 [Line feed motor and tractor motor drive circuits] The 4-phase line feed motor and tractor motor (bi-polar stepping motor) are controlled by the constant current drive circuit shown below. +34V (HIC2,HIC3,HIC4,HIC5) HIC (A3953SLB) MB90706 MLFM0,1 (LSI1) TLFM0,1 Motor MLFM0-3 HDLSI TLFM0-3 MBCG46183- TLFM02,13...
  • Page 148 [Error detection circuit] Over current detection If the space motor, line feed motor, or tractor motor current exceeds the respective absolute rated value, an over current detection signal is sent to the HDLSI. After a given period of the receipt of the detection signal, the HDLSI controls the PWSTOP signal to turn off +34 V. It also notifies the MPU of the occurrence of a driver error.

  • Page 149: Print Head Driver

    5.3.7 Print Head Driver Figure 5.3.19 is a print head drive circuit block diagram. Main board +34V Power supply Print head MB90706 DRAM Voltage dividing +34V +34V HDLSI (MBCG46183-520PF) FLYBK1-6 Flyback absorption (Flyback control circuit output) Transistor array *BKSI SMA4032 (Print head driver) PDV1 Pin data output...
  • Page 150 [Print head drive circuit control] The controller (MB90706) reads print data from DRAM. The data is set on the HDLSI print control circuit. At this point, printing does not begin yet. The MPU sets the excitation time (T1) and flyback absorption time (T2) in the HDLSI. The MPU outputs print timing signal TIMER1.

  • Page 151: Alarms

    5.3.8 Alarms 5.3.8.1 Fire Check A fire check alarm occurs if: Abnormal current flows because of damage to the space, line feed, or tractor motor, or a motor driver. The space motor has been excited for a long time. Current flows to the head drive transistor for a period longer than specified. 5.3.8.2 ROM or RAM Error A ROM or RAM error occurs if an error is detected during the following checks when power is turned on.

  • Page 152: Power Supply

    5.3.9. Power Supply The power supply circuit consists of the components shown in the block diagram in Figure 5.3.21 AC input filter Direct rectifying and smoothing circuit (including surge current preventive circuit) +5V/+34V switching regulator This section explains the +5V/+34V switching regulator and surge current preventive circuit according to the block diagram in Figure 5.3.21.
  • Page 153 detection PWSTOP Output filter Output filter PWSTOP +34V Figure 5.3.21 Power supply circuit block diagram...

  • Page 154: Surge Current Controller

    5.3.10 Surge Current Controller Surge current caused at power-on is controlled by the power thermistor (NTC thermistor) on the power supply board. This section explains the surge current controller. At power-on The power thermistor is directly connected to the power supply input line and normally has several ohms of resistance when power is turned on.

  • Page 155: Chapter 6 Recommended Spare Parts

    CHAPTER 6 RECOMMENDED SPARE PARTS The following table lists parts and product numbers to be used when replacing spare parts, and the sections that explain the replacement: Globalis number 3650-PU 3650-PS FIT product KA02038- KA02038- Item Description Parts number Section to be number B112 B212...

Table of Contents