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Casio UP-250 Technical Manual

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TECHNICAL MANUAL
(without price)
EXTERNAL PRINTER
MODEL UP-250
FEB. 2000
INDEX

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  Summary of Contents for Casio UP-250

  • Page 1 TECHNICAL MANUAL (without price) EXTERNAL PRINTER MODEL UP-250 FEB. 2000 INDEX...
  • Page 2 INFORMATION OR ANY OTHER INFORMATION IN THE DOCUMENT, INCLUDING (WITHOUT LIMITATION) ANY WARRANTY OF TITLE OR NON-INFRINGEMENT. CASIO has no liability for loss or damage arising from or relating to your use of or reliance on the information on the document.
  • Page 3: Fcc Compliance Statement

    FCC CLASS A FCC Compliance Statement For American Users This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 4 Introduction PU-250 Series (Type B) printers are one-station printers for ECR and POS use that can print the results of weighing or measuring. The main features of the PU-250 Series (Type B) printers are the following: High-speed printing through logic-seeking control Excellent reliability and long life resulting from the use of two stepping motors, one for moving the carriage and one for paper feeding Flexible paper feed setting permits printing in accordance with any user-defined format...
  • Page 5: Table Of Contents

    CONTENTS Chapter 1 Features and General Specifications ............1 Features .......................... 2 Printing Specifications ......................2 Character Specifications ..................... 3 Paper ..........................4 Auto-cutter .......................... 5 Paper Roll Supply Device ....................5 Receive Buffer ........................5 Electrical Specifications ...................... 5 Ribbon Cassette .........................
  • Page 6 Chapter 2 Mechanism Configuration and Operating Principles ......26 Printer Mechanism Operating Principles ..............26 Print mechanism unit ......................27 Print head unit movement ....................28 Wire movement when a single dot is printed ..............28 Printing a character (9x9 font) ..................29 Paper Feed Mechanism Unit ....................
  • Page 7 Lubricants ........................66 Standard Lubrication ......................66 Lubricants ......................... 66 Lubrication Points ......................67 Tool List ........................67 Chapter 4 Troubleshooting ..................68 Self-test ......................... 68 Initiating the Self-test ......................68 Self-test Standby ......................68 Ending the Self-test ......................68 Troubleshooting Flowchart ..................
  • Page 8 Main Assembly 10 ...................... 106 Sensor assembly ......................106 Main Assembly 11 ...................... 108 Carriage motor heat sink assembly ................108 Main Assembly 12 ...................... 108 Print head FPC assembly ....................108 Main Assembly 13 ...................... 110 Print head unit ........................ 110 Main assembly 14.......................
  • Page 9 Appendix ........................135 RS-485 Serial Interface ....................135 Main Circuit Board Parts Layout ................140 RS-232 Serial Interface Circuit Board Parts Layout ..........141 IEEE 1284 Parallel Interface Circuit Board Parts Layout ........142 RS-485 Serial Interface Circuit Board Parts Layout ..........143 Main Circuit Board Diagram ..................
  • Page 10: Chapter 1 Features And General Specifications

    Chapter 1 Features and General Specifications FEED button Power switch ERROR LED POWER LED PAPER OUT LED (PAPER OUT/PRESS FEED) PROM Power supply connector Drawer kick-out connector Frame ground screw Interface connector Frame ground screw DIP switches Figure 1-1 PU-250 appearance —...
  • Page 11: Features

    Features Printing Specifications Printing method: Serial impact dot-matrix Head wire configuration: 9-pin serial type 0.353 mm (0.014") 0.29 mm (0.01") (wire diameter) 0.317 mm (0.012") Figure 1-2 Dot configuration Dot pitch: 0.353 mm (1/72") Dot wire diameter 0.29 mm (0.01") Printing direction: Bidirectional with logic seeking Printing width:...
  • Page 12: Character Specifications

    Character dimensions, characters per inch, characters per line Character Character Dot Spacing Character Structure Characters Per Characters Per Structure Dimensions Between Horizontal x Vertical Line (cpl) Inch (cpi) Character Set Characters 1.2 x 3.1 mm 3 half dots (.047 x .122") 7 x 9 1.7 x 3.1 mm Graphics...
  • Page 13: Paper

    Paper Paper types: Paper roll: Plain paper or pressure-sensitive paper Paper roll width: 76 ± 0.5 mm (2.99 ± .020") Paper roll maximum 83 mm (3.27") diameter: Paper roll core: Unless there is an optional near-end detector, you cannot use a paper roll with the core and paper glued together.
  • Page 14: Auto-Cutter

    Auto Cutter Partial cut is executed by a command. (A partial cut leaves one point uncut.) Paper Roll Supply Device Supply device: Drop-in loading Receive Buffer Either 1KB or 40 bytes, selectable by DIP switches. Electrical Specifications Power supply One of the following five AC adapters is included, depending on the specifications: AC adapter specifications Settings and...
  • Page 15: External Dimensions And Weight

    External Dimensions and Weight Height: 150 mm (5.91") Width: 160 mm (6.30") Depth: 248 mm (9.76") Weight: Approximately 2.5 kg (5.5 lb) Color: EPSON standard gray Environmental Specifications Temperature: Operating: 0° to 50° C (32° to 122° F) At 34° C (93° F) or higher, there are humidity restrictions; see the figure below.
  • Page 16: Reliability

    Print head: 150 million characters (using an average of 2 dots/wire per character.) (The print pattern is shown in the UP-250 Specification in Figure A-1.) Auto cutter: 800,000 cuts End of life is defined as the point at which the printer reaches the beginning of the wear out period.
  • Page 17: Hardware Configuration

    Hardware Configuration Paper end detector Print head unit Paper feed motor Home position sensor Carriage motor Paper roll near-end detector (optional) Interface circuit board Main circuit board Figure 1-6 UP-250 main unit configuration — 8 —...
  • Page 18: Main Unit Specifications

    Main Unit Specifications Paper Feed Motor Type: 4-phase, 48-polarity, PM-type stepping motor 24 VDC ± 10% Drive voltage: 58 Ω ± 2.9 Ω at 25°C (77°F), per phase Winding resistance: Current consumption: Peak: 1.1 A in worst case Average: 200 mA at 24 VDC, 25°C (77°F), 600 pps 350 mA maximum Carriage Motor Type:...
  • Page 19: Paper End Detector

    Paper End Detector Type: Microswitch Voltage: 5 VDC ± 5% Output level: High when paper end is detected Paper Roll Near-end Detector (Optional) Type: Microswitch Voltage: 5 VDC ± 5% Output level: Low when a paper near-end is detected Connectors Frame ground Interface Frame ground...
  • Page 20: Power Supply Connector

    Power Supply Connector This connector is used to connect the printer to an external power source. Pin assignments: See the table below. Power supply connector pin assignments Pin Number Signal Name + power supply Shell Frame GND NOTE: Be sure to ground the frame ground (FG) screw on the board at the bottom of the unit. Ground wire terminal hole diameter: 3.2 mm (.13").
  • Page 21 Drawer kick-out drive signal Output signal: Voltage = Approximately 24 VDC Current = 1 A or less Output waveform: Outputs the waveforms in Figure 1-8 to pins 2 and 5 of the connector. t 1 (ON time) and t 2 (OFF time) are specified by ESC p.
  • Page 22: Interface

    Interface RS-232 Serial Interface Data transmission: Serial (compatible with RS-232) Synchronization: Asynchronous Handshaking: DTR/DSR or XON/XOFF control Signal levels: MARK = -3 to -15 V: Logic 1/OFF SPACE = +3 to +15 V: Logic 0/ON Baud rates: 4800, 9600 bps Data word length: 7 or 8 bits Parity settings: None, even, odd...
  • Page 23 Interface Connector Pin Assignments RS-232 interface connector pin assignments and functions Pin number Signal name Function — Frame ground Transmit data Receive data Same as the DTR signal This signal indicates whether the host computer can receive data. SPACE indicates the host computer can receive data, and MARK indicates the host computer cannot receive data.
  • Page 24 Switching between on line and off line The printer does not have an on-line/off-line button. It goes off line under the following conditions: Between the time when power is turned on (including reset using the interface) and when the printer is ready to receive data. During the self-test.
  • Page 25: Serial Interface (Option)

    RS-485 Serial Interface (option) Refer to the Appendix for details. IEEE 1284 Parallel Interface Complies with the standard described in the IEEE 1284 specification by the Institute of Electrical and Electronic Engineers, Inc. Specification Data transmission: 8-bit parallel Synchronization: Externally supplied STROBE signals Handshaking: and BUSY signals Signal levels:...
  • Page 26 Interface Connector Pin Assignments IEEE 1284 interface connector pin assignments and functions Pin number Source Compatibility Mode Nibble Mode Byte Mode Host Strobe Host Clk Host Clk Host/Ptr Data0 (LSB) Data0 (LSB) Data0 (LSB) Host/Ptr Data1 Data1 Data1 Host/Ptr Data2 Data2 Data2 Host/Ptr...
  • Page 27 Reception of status from the printer through the bidirectional parallel interface In bidirectional parallel interface operation, printer status transmission is available using the two-way communication facility of the IEEE 1284-compatible nibble/byte modes. In this case, unlike in RS-232 serial interface operation, real-time interruptions from the printer to the host are disabled, and so you must pay attention to the following.
  • Page 28: Buttons And Switches

    Notes on setting DIP switch 1-8 to ON The printer mechanism stops but does not become busy when an error occurs, printing stops for a paper end, or paper is fed using the FEED button. When setting DIP switch 1-8 to ON to enable handshaking with the printer, be sure to check the printer status with GS a and ASB function.
  • Page 29: Dip Switches

    DIP Switches Serial interface (RS-232 and RS-485 (option)) The DIP switches are located at the bottom of the case. DIP switch 1 DIP Switch Function Data receive error Ignored Prints “?” Receive buffer capacity Data buffer 40 bytes Data buffer 1KB Handshaking XON/XOFF DTR/DSR...
  • Page 30 DIP switch 2 DIP Switch Function Print column selection 42CPL/35CPL 40CPL/33CPL 9 font/9 9 font Internal use (See Notes.) Undefined I/F Init reset signal Fixed to ON Fixed to ON NOTES: Do not change the setting of DIP switches 2-2 and 2-4 (fixed to ON). Changes in DIP switch settings (excluding switch 2-4, which is the I/F reset signal) are recognized only when printer power is turned on or reset using the interface.
  • Page 31: Panel Leds

    Panel LEDs Power ( POWER ) LED: Green 24 V power supply is stable. Off: 24 V power supply is not stable. Paper roll near-end ( PAPER OUT ) LED: Paper roll near-end is detected. (*1) Off: Adequate paper remains on the paper roll (normal condition).
  • Page 32: Error Processing

    Error Processing Printer Operation When an Error Occurs The printer executes the following operations upon detecting an error: Serial interface All mechanical operations stop. DTR signal is set to MARK (only when DTR/DSR is selected and DIP switch 1-8 is off). The ERROR LED blinks.
  • Page 33: Hexadecimal Dump

    Hexadecimal Dump This function prints data transmitted from the host computer in hexadecimal numbers and in their corresponding ASCII characters. Performing a Hexadecimal Dump 1. Turn the printer power off. 2. Set DIP switch 1-2 to on to select 40 bytes for the receive buffer capacity. 3.
  • Page 34: External Power Supply Ps-170

    External Power Supply PS-170 Specifications 100 V, 120 V, or 230 V (specified at time of purchase) Input Conditions Input voltage (rating) 90 to 264 V (100 VAC-10% to 230 VAC + 15%) 108 VAC to 132 V (120 V type) Frequency (rating) 50 to 60 Hz ±...
  • Page 35: Chapter 2 Mechanism Configuration And Operating Principles

    Chapter 2 Mechanism Configuration and Operating Principles Printer Mechanism Operating Principles The M-U200 printer mechanism mounted in the UP-250 is composed of six mechanisms: print, paper feed, ribbon feed, detector, auto-cutter, and ribbon switch. Figure 2-1 M-U200 — 26 —...
  • Page 36: Print Mechanism Unit

    Print mechanism unit The print mechanism unit consists of the parts shown in the figure below. Carriage shaft Print head unit Print head ground Belt tension plate assembly pulley Paper feed frame assembly Carriage guide shaft Carriage sub assembly Belt Print head FPC Carriage motor assembly...
  • Page 37: Print Head Unit Movement

    Print head unit movement When the carriage motor is driven and the carriage motor gear moves in the direction of arrow B (forward rotation), the rotational power is conveyed to the belt drive pulley, then the belt. Next, the carriage sub assembly, which is fixed to the belt, moves in the direction of arrow B. When the carriage motor gear rotates in the direction of arrow A (reverse rotation), the carriage sub assembly moves in the direction of arrow A.
  • Page 38: Printing A Character (9X9 Font)

    Printing a character (9x9 font) A character is printed by energizing the print solenoids with respect to the carriage sub assembly portion. (The reference timing for the print solenoids is the carriage motor phase switching signals.) The print head unit moves 0.317 mm (0.012”) (in approximately 1.05 ms) each time the carriage motor rotates one step (7.5°).
  • Page 39: Paper Feed Mechanism Unit

    Paper Feed Mechanism Unit The paper feed mechanism unit consists of the parts shown in the figure below. Paper feeding is performed by driving the paper feed motor (stepping motor). Paper hold roller Paper feed Paper hold roller assembly spring Upper paper guide Paper feed motor Paper feed...
  • Page 40: Paper Loading (Semi-Automatic Loading)

    Paper loading (semi-automatic loading) When the paper roll is manually inserted into the paper feed roller, the paper detection switch in the paper path detects the paper, and semi-automatic loading is executed. (Semi-automatic loading is the function that automatically feeds paper to the top of the paper feed frame assembly when a paper roll is inserted in the paper path after the detector detects no paper.) Paper feed Paper...
  • Page 41: Ribbon Feed Mechanism Unit

    During printing, the paper feed motor is driven after each line is printed, causing the paper to be fed a specified amount. While the FEED button on the control panel is pressed, the paper feed motor is driven and the paper roll is fed. Paper roll Paper feed roller Paper feed...
  • Page 42: Ribbon Feeding

    Ribbon feeding When the carriage motor rotates forward and the carriage motor gear rotates in the direction of arrow A, the ribbon intermediate gear and ribbon drive gear rotate in the directions of arrows B and C, respectively. This causes the ribbon drive plate to move in the direction of arrow D, with the ribbon intermediate gear shaft in the center, until the ribbon drive gear engages the ribbon transmission gear.
  • Page 43: Detection Mechanism Unit

    Detection Mechanism Unit The detection mechanism unit consists of the home position detection, paper detection, and near-end detection (optional) mechanisms. Paper detector Home position sensor Figure 2-11 Detection mechanism unit Home position detection mechanism The home position detection mechanism consists of the detection protrusion at the left side of the carriage sub assembly and the sensor sub assembly at the left side of the base frame.
  • Page 44: Paper Detection Mechanism

    Paper detection mechanism The paper detection mechanism is located in the paper path. The mechanism provides paper end detection for the paper roll and semi-automatic loading by detecting presence or absence of the paper roll when it is inserted. Since the paper detector switch sub assembly is a micro switch, it is always ON when the paper roll is loaded.
  • Page 45: Ribbon Switch Mechanism Unit

    movable blade drive pin in direction E to make the blade execute a cut. If the motor continues rotating, the wormwheel makes one rotation and it makes the movable blade return to the standby position and the cutting is finished. Movable blade drive pin Wormwheel Wheel pin...
  • Page 46: Electrical Circuitry Operating Principles

    ribbon release spring. When the carriage sub assembly moves in the E direction, the ribbon frame assembly and ribbon release lever return to their original positions because of the spring power of the ribbon frame spring. Ribbon release range Ribbon switch range Ribbon switch lever Ribbon release lever Ribbon release section...
  • Page 47 Circuit board block diagram The main circuit board unit contains the following electrical circuits: Power supply circuit Reset circuit CPU [internal RAM: 16K bits (2K x 8 bits)] Memory [EPROM: 512K bits (64K x 8 bits)] Operation panel control circuit Drawer kick-out driver circuit Print head driver circuit Paper feed motor driver circuit...
  • Page 48 The figure below illustrates the circuit block diagram for the printer. Figure 2-17 Circuit board block diagram — 39 —...
  • Page 49: Memory Map

    Memory Map The following parts are mapped on the printer memory map: EPROM (program) 0000H 0000H 0000H (For multi-lingual) Can not to be used. Cannot be used. Program, Character (Interral ROM character generator area program area) generator area F000H Can not to be used. 64KB FFFFH FFFFH...
  • Page 50: Principles Of Operation

    Principles of Operation Power Supply Circuitry The power supply circuit is compact, uses a switching method, and is attached to the main circuit board. The following sections describe printer power supply circuitry. The following table shows power supply voltages and their usages. Power supply voltage usage Voltage Usage Logic circuit...
  • Page 51: Control Circuitry

    Control Circuitry Reset circuit The reset circuit is used to prevent the CPU from operating erratically and the print head from printing unexpectedly during the period of unstable voltage immediately after power is turned on. To accomplish this, the OUT terminal output (pin 5) of the reset IC (U9) is supplied to the CPU (U5) as the RESET input signal (pin 21).
  • Page 52: Cpu

    The printer uses an external 8-bit and internal 16-bit CPU, with an external clock of 14.7 MHz. The CPU (U5) controls the internal processing of the printer according to the printer control program written in EPROM (U8). CPU pin functions Signal Name Level Description...
  • Page 53 CPU pin functions Signal Name Level Description Function Connected to ceramic vibration generator. f=14.74 MHz ± 0.5%. Connected to ceramic. f=14.74 MHz ± 0.5%. External memory access. LOW: external ROM HIGH: internal ROM (CPU mask). P75 (A16) External memory address A16 (software). P76 (A17) External memory address A17 (software).
  • Page 54 CPU pin functions Signal Name Level Description Function PF A/DSW5 Paper feed motor driver control 2-2 phase PF B/DSW6 excitation. All terminals on (LOW): hold. DIP SW 1-5 to 1-8 read when P100, P101 are PF C/DSW7 LOW. PF D/DSW8 External memory data read signal.
  • Page 55: Various Detector Circuits

    RAM (CPU internal 2K bit) RAM is used as temporary storage for the following: Data received from the interface (receive buffer) Pattern data to be printed by the print head (printer buffer) Data used by the CPU (U5) during processing (flags, pointers, etc.). Operation panel The operation panel is located on the main circuit board and has 3 LEDs ( POWER , ERROR , and PAPER OUT) and 1 switch ( FEED ).
  • Page 56: Host Interface Circuit

    A near-end detector is an option that detects the remaining amount of a paper roll. The input signal to the CPU (U5) becomes LOW when a paper near-end is detected. Mechanism 1 Printer mechanism P64/AN4 P65/AN5 HP DET P62/AN2 Mechanism 2 CN11 Figure 2-22 Various detector circuits Host interface circuit...
  • Page 57: Dip Switch Read Circuit

    The +24 V drawer power supply is supplied via the regulator IC (U2), which cuts off the supply in case of excessive current. { 5 V { 5 V DKD 1P DKD SW { 5 V +24V DKD 2P DC 24-30V IN Figure 2-23 Drawer kick-out drive circuit DIP switch read circuit There are 8 switches in DIP switch bank 1 and 2 switches in DIP switch bank 2 that are status-...
  • Page 58 CPU (U5) pins 52 to 55, pins 56 to 59, and pins 1 and 81 are also used for the carriage motor drive circuit, paper feed motor drive circuit, and operation panel control circuit. The pins are used to read DIP switches temporarily immediately after the printer initialization (or the power is turned on).
  • Page 59: Printer Mechanism Driver Circuits

    Printer Mechanism Driver Circuits Print head driver circuit The head driver signal is output from CPU (U5) pins 64 to 72. Receiving this drive signal, transistor array QM1 and QM2 and transistor array QM3 turn On, Off, and drive the head. Power supply time to the head is adjusted by the supplied power voltage.
  • Page 60: Paper Feed Motor Driver Circuit

    Paper feed motor driver circuit The paper feed motor (stepping motor) possesses an accurate angle of rotation and permits speed control. It is driven with 2-2 phase excitation. By turning P53 of the CPU to LOW, +24 V (labeled +24C signal in the figure below) is applied to the COM terminal of its coil, and it is made to run by changing P90, P91, P92 and P93 to HIGH and LOW.
  • Page 61: Auto-Cutter Driver Circuit

    Auto-cutter driver circuit Rotating the DC motor counterclockwise or clockwise causes the auto-cutter to execute a full cut or a partial cut (one point left uncut). The driver IC (U6) has a full-bridge configuration and controls motor rotation, clockwise and counterclockwise. The position of the auto-cutter blade is detected by the signal connected to P67 of the CPU.
  • Page 62: Chapter 3 Handling And Maintenance

    Chapter 3 Handling and Maintenance Handling Precautions Storage Precautions Avoid storing the printer in a dusty, humid, or extremely cold area. Also avoid areas that are exposed to direct sunlight for long periods of time. For long-term storage, place the printer in a polyethylene bag with anti-rust paper (VCI paper) and keep it in a dry place.
  • Page 63: Ribbon Cassette Handling Precautions

    Ribbon Cassette Handling Precautions Use only the ribbon cassette specified in Chapter 1 of this manual. If another ribbon cassette is used, any of the following may occur: Print quality deterioration Printer life may be shortened Ink may leak The ribbon may catch on the print head. Do not re-ink a ribbon.
  • Page 64 4. Press the FEED button to remove the cut paper. 5. Remove the used paper roll. 6. Using scissors, cut the leading edge of the paper roll perpendicular to the paper feed direction, as shown below. 7. Insert the paper roll. Note: Be sure to note the correct direction that the paper comes off the roll, as shown below.
  • Page 65 8. Open the auto-cutter by pulling the tab up and toward you. 9. Hold both edges of the paper and insert it straight into the paper slot. The printer feeds the paper automatically. 10. If the paper is not coming out of the manual cutter, press the paper FEED button until the paper comes out.
  • Page 66: Replacing The Ribbon Cassette

    11. Cut the paper on the manual cutter. 12. Close the auto cutter by using the tab. 13. Close the printer cover. 14. When the PAPER OUT light blinks, press the paper FEED button to set the printer on line. Note: The printer is off line until the PAPER OUT light is off.
  • Page 67 CAUTION: Never turn the ribbon cassette’s feed knob in the opposite direction of the arrow marked on the cassette; otherwise the ribbon cassette may be damaged. 5. Insert the ribbon in the position shown in the illustration below and push the ribbon cassette until it clicks.
  • Page 68 6. Turn the ribbon cassette’s knob 5 or 6 times in the direction of the arrow again to take up any slack in the ribbon. — 59 —...
  • Page 69: Removing Jammed Paper

    Removing Jammed Paper Follow these steps to clear a paper jam: CAUTION: The print head becomes very hot during printing. Allow it to cool before you reach into the printer. 1. Turn the printer off and open the printer cover. 2.
  • Page 70 Note: Do not pull the jammed paper in the opposite direction of paper feeding. 6. If paper still remains in the printer, follow the steps below. 7. Remove the ribbon cassette. 8. Loosen the screw securing the print head cover. Turn the screw only until you can tilt it as shown in the illustrious.
  • Page 71 Note: Do not remove the screw from the print head cover. 9. Remove the print head cover. 10. Remove all the jammed paper. Note: Do not pull the jammed paper in the opposite direction of paper feeding. 11. Replace the print head cover and secure it with the screw. 12.
  • Page 72 13. If the auto cutter blade is not in its normal position (if you can see the blade in the auto cutter slit, the blade is not in the normal position), insert a screwdriver into the right side of the auto cutter and turn the gear inside to move the blade to the normal position.
  • Page 73: Using The Power Switch Cover

    Using the Power Switch Cover You can use the provided power switch cover to protect the power switch from accidental or improper operation. Attach the cover as shown in the illustration below. You can turn the power on or off with the switch cover attached by inserting a pointed object (like a ball point pen) through either of the two small holes on the switch cover.
  • Page 74: Inspection And Maintenance

    Inspection and Maintenance Proper performance of the inspection and maintenance procedures described below allows this unit to perform for the years of trouble-free operation for which it is designed. Maintenance Procedures The inspection procedures described here are divided between two types: daily inspection, which can be performed by those who use the unit on a daily basis, and periodic inspection, to be performed by individuals who have a more detailed technical knowledge of the unit.
  • Page 75: Cleaning

    Cleaning 1. Wipe off stains with a clean, dry cloth. If the stains cannot be wiped off, use a neutral detergent. CAUTION: Never use benzene, alcohol, thinner, trichloroethylene, or any of the ketone family of solvents because they may deform or damage plastic and rubber components. 2.
  • Page 76: Lubrication Points

    Lubrication Points The following table describes the lubrication points, type, and class. The numbers in the following table correspond to the numbers in the lubrication and adhesive points diagrams in the Appendix on pages A-7 and A-8. Lubrication points Lubrication point Lubricant type Contact points between the carriage shaft and O-10...
  • Page 77: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Use the following to troubleshoot and repair the printer: Self-test This procedure tests control circuitry (other than serial communication and parallel communication send / receive control) and the printer mechanism. Troubleshooting flowchart When the source of the problem is not clear, use the flowchart to find and replace a defective component.
  • Page 78: Troubleshooting Flowchart

    Troubleshooting Flowchart If the source of a problem is not clear, use the flowchart below to find and replace the defective component. Normally, perform servicing by component replacement. Repairs of the PCBs and other components should be performed only by technicians. Start Power on Is POWER...
  • Page 79 1 POWER LED does not light Is power supply cable connected properly? Connect power supply cable properly. Does external power supply have proper output voltage rating? (approximately +40 V in no-load condition) Replace external power supply. Has fuse F1 on main PCB blown? Make sure main PCB does not have any damage such as burns.
  • Page 80 2 PAPER LED is lit. Turn the power on again. Is the paper roll near end sensor’s continuity normal?* Replace the near- end sensor. Replace printer mechanism assembly. Replace main PCB. (*) The near-end sensor is optional. — 71 —...
  • Page 81 3 Semi-automatic loading is not executed. Is paper jammed in the paper inlet path? Remove the paper. Is connector CN6 attached firmly? Attach connector firmly. Replace printer mechanism assembly. Replace main PCB. — 72 —...
  • Page 82 4 Self-test is not normal. Does the printer not perform at all? Replace printer mechanism assembly. Is the output voltage of the regulator circuit on the main board within the specified range?(*) Replace the main PCB. Replace the mechanism. Replace main PCB. (*) Confirm the voltage at each terminal in the table below: Checkpoint Specified value...
  • Page 83 5 The auto-cutter does not perform correctly. Disassembly of the auto-cutter unit is prohibited. If you disassemble it, performance cannot be guaranteed. Is there a paper jam in the auto-cutter? Remove jammed paper. Turn on the power again. Replace the auto-cutter unit. Replace the main circuit board.
  • Page 84 6 Data from host is not printed normally. Set DIP switch 1–1 to OFF. Send data from host to printer. Is “?” printed? Are serial interface parameters set to identical values at host and printer? Make settings identical. Does interface cable match specifications? Replace with a proper cable.
  • Page 85: Troubleshooting Tables

    Troubleshooting Tables The tables contain the following columns: Problem This is a symptom that can be verified. Probable cause This is a listing of one or several possible causes that should be examined. Level Level A The problem can be corrected by persons familiar with the printer who have general knowledge, but special technical skills are not required.
  • Page 86 Table 4-1 Troubleshooting table for printer operation failure (continued) Problem Probable cause Level Checkpoint Action Data from the An incorrect interface Check if the interface cable Use the correct interface host is printed cable may be used. matches the printer cable.
  • Page 87 Table 4-1 Troubleshooting table for printer operation failure (continued) Problem Probable cause Level Checkpoint Action Semi-automatic The paper supply Check if the paper roll Use the correct paper roll. loading is not operation may be meets printer specifications. (See “Paper Specifications” executed.
  • Page 88 Table 4-2 Troubleshooting table for bad printing (continued) Problem Probable cause Level Checkpoint Action Dots are The head FPC may Check the continuity of the Replace the head FPC. missing be bad. head FPC. occasionally. The print head unit Check if there are paper Remove any paper may be bad.
  • Page 89 Table 4-2 Troubleshooting table for bad printing (continued) Problem Probable cause Level Checkpoint Action The paper feed Operation of the Check if the specified paper Use the correct paper roll. pitch is not paper supply may be roll is used. (See “Paper Specifications”...
  • Page 90 Table 4-2 Troubleshooting table for bad printing (continued) Problem Probable cause Level Checkpoint Action The print color The ribbon cassette Verify that the ribbon cassette Mount the ribbon cassette is mixed. (Half is floating. is mounted correctly. in the correct position. of the character (See “Replacing the is black and the...
  • Page 91: Error Types And Countermeasures

    Error Types and Countermeasures Follow the flowcharts on the next page based on the ERROR LED blinking patterns in the table below and repair the printer. The printer does the following when an error occurs: All operations stop The printer goes off-line (when DIP SW 1-8 is off). The ERROR LED blinks.
  • Page 92 Action 1 Action 1 Wait for the print head temperature to drop. Has the printer recovered from the error? Replace main PCB. Replace printer mechanism assembly. — 83 —...
  • Page 93 Action 2 Action 2 Are there any chips of paper in the home position sensor? Remove paper. Is connector CN5 inserted firmly? Insert the connector firmly. Replace printer mechanism assembly. Replace main PCB. — 84 —...
  • Page 94 Action 3 Action 3 Turn the printer power off. Does external power supply have proper output voltage rating? (approx. 40 V in no-load condition) Replace external power supply. Replace main PCB. Replace printer mechanism assembly. — 85 —...
  • Page 95 Action 4 Action 4 Replace main PCB. Replace printer mechanism assembly. — 86 —...
  • Page 96: Chapter 5 Disassembly, Assembly, And Adjustment

    Chapter 5 Disassembly, Assembly, and Adjustment Small Part Specifications This section uses abbreviations for small parts, such as screws and washers. The following is a list of these abbreviations and illustrations of the screw types. CCS-tite Cross-recessed Cup head S-tite self-tapping screw CBS-tite Cross-recessed Binding head S-tite self-tapping screw CBB-tite...
  • Page 97: Disassembly

    Disassembly Removing the fuse 1. Turn off the printer. 2. Disconnect the external power supply. 3. Remove the main cover assembly from the printer. 4. Remove the lower plate from the printer. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf •...
  • Page 98: Removing The Print Head Unit

    Removing the print head unit 1. Remove 4 screws, and remove the upper case. 2. Remove the right side screw securing the auto-cutter fixing plate. Upper case screw Auto-cutter fixing plate 3. Loosen the thumb-screw and remove the head cover. Head cover Thumb-screw —...
  • Page 99 4. Remove the ribbon frame spring and ribbon frame fixing plate; then remove the ribbon frame assembly. Ribbon frame fixing plate Ribbon frame assembly Ribbon frame spring 5. Remove the screw seuring the print head unit. 6. Disconnect the print head FPC and remove the print head unit. Print head unit Print head FPC Refer to the corresponding assembly section(s) in this chapter for the assembly procedure.
  • Page 100: Removing The Auto-Cutter

    Removing the auto-cutter Open the main cover assembly. Remove 1 screw, and remove the auto-cutter cover. Remove the cable connector from the auto-cutter cover (See the second part of the illustration below). Then disconnect the auto- cutter cable from the cable connector for the auto-cutter. (The illustration does not have the main cover assembly.
  • Page 101: Removing The Main Circuit Board Assembly

    Removing the main circuit board assembly Remove the lower plate. lower plate Remove the interface circuit board assembly. Interface circuit board assembly — 92 —...
  • Page 102 Disconnect 5 cables. Remove 5 screws. Follow the steps below; then remove the main circuit board assembly. Slide the board toward the arrow . Move the 2 cables toward the arrow Move the board toward the arrow . Once the board is released from the plate (marked with ), the main circuit board can be removed from the printer.
  • Page 103: Sub-Assembly A

    Sub-assembly A Paper feed frame unit assembly Apply G-31 to the middle of the paper hold roller shaft. Pass the paper hold roller shaft through the paper hold plate spring and paper hold roller. Paper hold roller shaft Apply G-31 Paper hold plate spring Paper hold roller...
  • Page 104 Attach the paper feed reduction gear to its shaft as shown in the second illustration below. Make sure that the reduction gear is closer to the frame than the roller assembly gear. Next, insert the J feed roller shaft holder (right) into the frame as shown in the illustration. (Paper feed J feed roller shaft holder (right) roller assembly)
  • Page 105 7. Attach the paper feed motor to the paper feed frame assembly with a screw. CCS-tite (M3x6) Paper feed motor [0.69 to 0.88 N • m (7 to 9 kgf • cm)] Paper feed frame assembly 8. By fitting the U-cut portion of the upper paper guide to the shaft of the paper feed roller assembly, attach the paper guide to the paper feed frame assembly.
  • Page 106 9. Insert the ends of the paper hold roller shaft into the paper feed frame assembly, as shown below. Paper feed frame assembly Paper hold roller shaft (assembled) 10. Hook the paper hold springs to the paper feed frame assembly and paper hold roller shaft. Hook the spring on the paper feed motor side first.
  • Page 107: Main Assembly 1

    Check that the corner edge of the paper hold plate spring is placed on the paper feed frame assembly as shown in the illustration below. Check that the paper hold plate spring is not deformed. Paper hold plate spring Corner edge Paper feed frame assembly Main Assembly 1...
  • Page 108 Check that the ribbon switch lever and ribbon release lever are attached in the proper directions. Notch Ribbon release lever Ribbon switch lever RE (3) Ribbon release spring Base frame assembly 4. Attach the ribbon intermediate gear to the base frame assembly. 5.
  • Page 109: Main Assembly 2

    Main Assembly 2 Tension plate assembly 1. Insert the tab of the tension plate assembly into the base frame assembly; then slide the tension plate in the direction of arrow 2 to lock it. Tension plate assembly Base frame assembly Main Assembly 3 Paper feed frame assembly 1.
  • Page 110: Main Assembly 4

    3. Attach the screws. CBT-B (M3x10) Paper feed frame assembly [0.49 to 0.69 N • m (5 to 7 kgf • cm)] Rectangular hole Portion A Paper hold plate spring CBT-B (M3x10) Portion A [0.49 to 0.69 N • m (5 to 7 kgf •...
  • Page 111: Main Assembly 5

    2. Hook the paper feed motor cable to hook A on the base frame assembly. Make sure to route the cable as shown in the illustration. 3. Route the carriage motor and paper feed motor cables outside the base frame as shown in the illustration.
  • Page 112: Main Assembly 6

    Main Assembly 6 Carriage shaft assembly Pass the carriage shaft through the paper feed frame assembly and carriage sub assembly. At this time, hook the paper hold spring feet to the carriage shaft’s dowels, as shown in the illustration. Paper hold spring hook Carriage subassembly...
  • Page 113: Main Assembly 7

    Main Assembly 7 Adjustment roller shaft holder assembly 1. Attach the adjustment roller shaft holders to the carriage shaft as shown in the illustration. Adjustment roller Carriage shaft shaft holder 2. Push the adjustment roller shaft holders and turn them 90 degrees in the direction of arrow C.
  • Page 114: Main Assembly 8

    Main Assembly 8 Carriage guide shaft assembly 1. Insert the carriage guide shaft through the base frame assembly and carriage sub assembly and lock it with the RE. Carriage sub assembly Carriage guide shaft Base frame assembly RE (2.3) Main Assembly 9 Belt tension spring assembly 1.
  • Page 115: Main Assembly 10

    3. Move the belt tension spring from the paper feed frame’s hook to the base frame hook. Base frame hook Belt tension spring Main Assembly 10 Sensor assembly 1. Insert the sensor portion of the sensor assembly into the base frame assembly; then attach the board by pushing it in.
  • Page 116 5. Position the paper detection switch sub assembly lead wires as shown in the illustrations, and make sure that the lead wires are as close as possible to the base frame surface. Paper detection switch sub assembly lead wires Sensor sub assembly’s lead wires —...
  • Page 117: Main Assembly 11

    Main Assembly 11 Carriage motor heat sink assembly 1. Attach the carriage motor heat sink to the carriage motor assembly, and turn the heat sink in the direction of the arrow until it stops. Check that surface B of the carriage motor heat sink and surface A of the paper feed frame are the same height.
  • Page 118 3. Pass the straight side of print head FPC through the slit in the base frame assembly. Projection Print head FPC Straight side Base frame assembly Arm section 4. Pull out the print head FPC from the back of base frame assembly. 5.
  • Page 119: Main Assembly 13

    Main Assembly 13 Print head unit 1. Attach the print head FPC to the print head unit. 2. Place the print head FPC under the hooks on the carriage sub assembly, and then secure the print head unit to the carriage sub assembly with the screw. 3.
  • Page 120: Main Assembly 14

    Make sure there is space between the slanting edge of the print head FPC and slanting side of the carriage sub assembly, and between the FPC edge and portion A. If there is no space, the print head FPC may not be inserted into the print head unit firmly. Remove the print head unit and insert the print head FPC again.
  • Page 121: Main Assembly 15

    Main Assembly 15 Ribbon frame earth plate 1. Put the ribbon frame earth plate in the carriage guide shaft. Ribbon frame earth plate Carriage guide shaft — 112 —...
  • Page 122: Main Assembly 16

    Main Assembly 16 Ribbon frame assembly, ribbon frame spring, and ribbon frame fixing plate 1. Apply G-31 to the switching point of the ribbon frame on the ribbon switch lever. (A line of lubrication: length 4 mm x wide 1 mm) 2.
  • Page 123: Main Assembly 17

    Main Assembly 17 Thumb-screw and head cover 1. Place the thumb-screw into the hole in the head cover and secure the RE (2.5) in the center of the thumb-screw. 2. Insert the tab of the head cover into the left cover fixing plate first, and then rotate and secure with the thumb-screw while aligning the dowel.
  • Page 124: Main Assembly 1 (Case Unit)

    Main Assembly 1 (Case Unit) Lower cutter plate assembly 1. Attach the lower cutter plate to the upper plate and secure it with the screws. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Upper plate —...
  • Page 125: Main Assembly 2 (Case Unit)

    Main Assembly 2 (Case Unit) Upper plate assembly 1. Turn over the printer mechanism assembly. 2. Align the rectangular hole with the hook, hole A with dowel B, and then secure the plate with the screw. Upper plate Hole C Hole A Rectangular hole...
  • Page 126 Note: When you remove the upper plate, lift it up in the direction of arrow 1 slightly; then move it in the direction of arrow 2 to release the hook to remove the plate completely. Upper plate Arrow 1 Arrow 2 Hook —...
  • Page 127: Main Assembly 3 (Case Unit)

    Main Assembly 3 (Case Unit) Main circuit board assembly 1. Attach the main circuit board assembly to the upper plate by attaching the power switch side first and then the drawer kick-out and power connectors side. Secure the circuit board with the screws.
  • Page 128: Main Assembly 4 (Case Unit)

    Main Assembly 4 (Case Unit) Inserting the cables 1. Insert the lead wires of the print head FPC, the sensor assembly, and the auto-cutter assembly into the connectors. 2. Insert the paper feed motor cable into CN6 and the carriage motor cable into CN5. At this time, make sure to insert the cables so that black or red colored side connects to the pin 1 side of each connector.
  • Page 129: Main Assembly 5 (Case Unit)

    Main Assembly 5 (Case Unit) Lower case assembly 1. Attach the lower case to the printer mechanism assembly. It is easy to assemble if you first place portion B of the lower case under portion A of the upper plate. 2.
  • Page 130: Main Assembly 6 (Case Unit)

    Main Assembly 6 (Case Unit) Manual cutter assembly and auto-cutter fixing plate 1. Attach the manual cutter to the paper feed frame assembly and secure it with the screw. CBS-tite (M3x5) [0.69 to 0.8 N • m [7 to 9 kgf • cm)] Manual cutter Paper feed frame Check that the manual cutter is aligned with the paper feed frame as shown in the...
  • Page 131 2. While aligning the dowels, install the auto-cutter fixing plate and secure it with the screw. 3. Secure the earth plate with the screw. CBS-tite (M3x5) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Auto-cutter fixing plate CP(O) (M3x6) [0.59 to 0.78 N •...
  • Page 132: Main Assembly 7 (Case Unit)

    Main Assembly 7 (Case Unit) Auto-cutter assembly 1. To attach the auto-cutter assembly to the auto-cutter plate assembly, fit the auto-cutter assembly onto the left dowel of the auto-cutter plate assembly first, and then fit the right side onto the right to match the right dowel. 2.
  • Page 133 5. Attach the auto-cutter plate assembly to the auto-cutter fixing plate. Make sure the holes for the shafts of the auto-cutter plate assembly match the holes in the auto-cutter fixing plate. Insert the hook end of the spring in the hole in the auto-cutter plate assembly first, and the auto-cutter plate spring shaft and auto-cutter plate shaft in the holes of the auto-cutter fixing plate and secure them with the RE (3).
  • Page 134 7. Insert the connectors you connected in step 6 into the slit in the auto-cutter cover. Insert the cable wires of the auto-cutter into the other slit in the auto-cutter cover. Auto-cutter cover The other slit Slit 8. While aligning the dowel, install the auto-cutter cover, and secure it with the screw. Arrange the cable wires so that they come through the cut portion shown in the illustration.
  • Page 135: Main Assembly 8 (Case Unit)

    Main Assembly 8 (Case Unit) Paper roll receive rollers, upper case, guide roller, and switch panel assemblies 1. The lead wires of the auto-cutter assembly should be arranged as shown in the second part of the illustration below. 2. Apply G-31 to both of the paper roll receive rollers. 3.
  • Page 136 — 127 —...
  • Page 137: Main Assembly 9 (Case Unit)

    Main Assembly 9 (Case Unit) Interface circuit board assembly and connector plate 1. Turn over the printer. 2. Attach the connector plate to the interface circuit board assembly and secure with the hexagon lock screws (serial interface) or the CPS-tite screws (parallel interface). 3.
  • Page 138 Parallel Interface CPS-tite(M3 (4 to 6 kgf • cm ) Interface circuit board assembly Check that the interface board assembly is firmly connected to the main circuit board assembly. — 129 —...
  • Page 139: Main Assembly 10 (Case Unit)

    Main Assembly 10 (Case Unit) Lower plate, ROM cover, and rubber foot assembly 1. Attach the lower plate to the lower case and secure it with the screws. 2. Attach the ROM cover to the lower plate and secure it with the screws. 3.
  • Page 140: Main Assembly 11 (Case Unit)

    Main Assembly 11 (Case Unit) Main cover assembly 1. Secure the hinge assembly to the main cover assembly with the screws (2 portions). 2. Secure the hinge assembly of the main cover assembly to the upper case with the screws (2 portions).
  • Page 141: Main Assembly 12 (Case Unit)

    Main Assembly 12 (Case Unit) Near-end detector assembly (optional) 1. Attach the near-end detector lever to the near-end detector frame. 2. Connect the lead wire assembly’s connector to the near-end detector and attach it to the near-end detector frame with the screw. CBB-tite (M2x8) [0.1 to 0.2 N •...
  • Page 142 4. Attach the spacers (if desired) and near-end detector assembly to the lower case and secure them with the screws. Make sure the spacers are positioned in the correct direction, as shown in the illustration. Connector CN11 Round corner Round corner of spacer Near-end detector assembly CPT-B (M3x12)
  • Page 143: Adjustment

    Adjustment Platen gap adjustment 1. Turn the ribbon frame knob in the direction of the arrow to remove the ribbon frame assembly from the printer and remove the manual cutter. 2. Move the print head unit so that it is 1 to 2 cm (0.39 to 0.79”) from portion A of the paper hold plate spring and insert the scaling gauge between the print head unit and platen.
  • Page 144: Appendix

    Appendix RS-485 Serial Interface Data transmission: Bit serial Synchronization: Asynchronous Handshaking: Depends on the DIP switch settings (DTR/DSR or XON/XOFF control ) Signal levels: 2.0 V to 5.0 V: Logic 1 0.0 V to 0.8 V: Logic 0 Baud rates: Depends on the settings of the TM series printer (2400 to 19200) Data word lengths:...
  • Page 145 If the electric potential of CS1 is higher than CS2, the TM series printer is ready for communication (the host is ready to receive data). If the electric potential of CS1 is lower than CS2, the TM series printer is not ready for communication (the host is not ready to receive data). Function Communication is available Communication is not available...
  • Page 146 RS-485 interface connector pin assignments and functions Pin number Signal name Function — Frame ground Transmit data Transmit data Receive data Receive data — Signal ground When DTR/DSR is selected, this signal indicates whether the host computer is BUSY or READY. DR1 > DR2 indicates the printer is READY and DR1 <...
  • Page 147 XON/XOFF Transmission Timing When XON/XOFF control is selected by the DIP switch, the printer transmits XON/OFF to the host according the table below. NOTE: For the different models, XON/XOFF transmission timing differs, depending on the settings of the off-lineconditions by the DIP switches. Refer to the specifications for the printers. XON/XOFF transmission timing Off-line status DIP SW status...
  • Page 148 "L" indicates: Printer transmission data SD1 > SD2 Printer reception data RD1 > RD2 The transmission data is H = 1, L = 0 Note: This format is used when the UART for RS-232 is connected to the RS-485 driver. Printer reception data level Read data Receiving data line is at the LOW level...
  • Page 149: Main Circuit Board Parts Layout

    Main Circuit Board Parts Layout — 140 —...
  • Page 150: Rs-232 Serial Interface Circuit Board Parts Layout

    RS-232 Serial Interface Circuit Board Parts Layout — 141 —...
  • Page 151: Ieee 1284 Parallel Interface Circuit Board Parts Layout

    IEEE 1284 Parallel Interface Circuit Board Parts Layout — 142 —...
  • Page 152: Rs-485 Serial Interface Circuit Board Parts Layout

    RS-485 Serial Interface Circuit Board Parts Layout — 143 —...
  • Page 153: Main Circuit Board Diagram

    Main Circuit Board Diagram +24B DSR RST #25 RST #RST DSR OR #25 CR A/DSW1 DSW2 CR C/DSW3 PLED/DSW0 ELED/DSW9 (ROTOR) DSW1 CR B/DSW2 CR A PF D/DSW8 CR C PF C/DSW7 CR COM PF B/DSW6 CR B RESET PF A/DSW5 CR D CR D/DSW4 CR D/DSW4...
  • Page 154: Rs-232 Serial Interface Circuit Board Diagram

    RS-232 Serial Interface Circuit Board Diagram TO MAIN BOARD DK 1 DK S +24V +12V +24V HOST RTS I/F DET CLKOUT/DTR CLKREQ DK 2 DK G DK P +24V TO HOST +24V SD/SD1 RD/SD2 (RES) #25_RESET RS/RD1 #25_RESET DSR_RESET /RD2 DSR_RESET DR/INIT1 #RESET...
  • Page 155: Ieee 1284 Parallel Interface Circuit Board Diagram

    IEEE 1284 Parallel Interface Circuit Board Diagram DD5V CEN7..0 RM12 RM11 U11D CEN0 CEN1 CEN2 CEN3 CEN4 CEN5 CEN6 CEN7 -STB/HOSTCLK DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DD5V DATA7 DATA8 -ACK/PTRCLK BUSY/PTRBUSY/37 DK 1 PE/ACKDATREQ/26 DK S SLCT/XFLAG/15 -AFXT/HOSTBUSY +24V P31/RXD +24V P32/SCLK...
  • Page 156: Rs-485 Serial Interface Circuit Board Diagram

    RS-485 Serial Interface Circuit Board Diagram TO MAIN BOARD DK 1 DK S +24V +24V HOST_RTS CLKIN/DTR CLKREQ TO HOST DK 2 DK G DK P +24V +24V SD/SD1 RD/SD2 RS/RD1 /RD2 DR/INIT1 (RES) #25_RESET /DR1 DSR_RESET /DR2 #RESET /CS1 /CS2 INIT2 SHELL...
  • Page 157: Printer Mechanism Unit Overall Exploded Diagram

    Printer Mechanism Unit Overall Exploded Diagram CPP-tite (M3 x 10) Print head FPC CCS-tite (M3 x 6) Print head unit Belt Left cover fixing plate J feed roller shaft holder (left) CBS-tite (M3 x 5) Right cover fixing plate Ribbon drive plate assembly Manual cutter...
  • Page 158: Case Unit Overall Exploded Diagram

    Case Unit Overall Exploded Diagram Auto-cutter CBS-tite (M3 x 5) CPS-tite (M3 x 6) lock lever Main cover assembly Auto-cutter spring Auto-cutter cover assembly Lower cutter plate Hexagon lock screws (*) Upper plate RE (2.3) RE (2.3) Auto-cutter lock lever CP(0) (M3 x 6) CPT-B (M3 x12) Auto-cutter plate...
  • Page 159: Printer Mechanism Unit Lubrication Points Diagram

    Printer Mechanism Unit Lubrication Points Diagram (1) O-10 (5) G-31 (6) G-31 (7) G-31 (2) G-31 (8) G-31 (7) G-31 — 150 —...
  • Page 160: Case Unit Lubrication Points Diagram

    Case Unit Lubrication Points Diagram (3) G-31 (3) G-31 (4) G-31 (4) G-31 — 151 —...
  • Page 161: Parts List

    PARTS PRICE LIST UP-250(EP-ROMa type) Price Item Code No. Parts Name Specification Q Rank Code N 101 94870369 SCREW M3X12 B018102011 19063227 SCREW M3X6 F/ZN B040450511 19062108 SCREW M3X6 B300104211 19087657 SCREW M3X5 3X5 F/ZN B300204111 19030102 HOLDER/ROLLED PAPER F701001030 19062119 SCREW/HEXAGON JSF-2.6S-B1W...
  • Page 162 Price Item Code No. Parts Name Specification Q Rank Code 19062163 DRIVER/RECEIVER IC ADM202JRN 2015476 19062172 COMPARATOR NJM2903M-TE3 2012489 N 501 94870337 RIBBON TAKE-UP ASSY 1039532 N 502 94870306 PLATE/RIBBON DRIVE ASSY 1026404 N 503 94870307 MOTOR/CARRIAGE ASSY 1026405 N 504 94870308 PLATE ASSY/TENSION 1026406 N 505...
  • Page 163: Exploded Diagram For Tm-U200B/U210B No.1

    EXPLODED DIAGRAM FOR TM-U200B/U210B NO.1 — 154 —...
  • Page 164: Exploded Diagram For Tm-U200B/U200Pb/U210B/U210Pb No.2

    EXPLODED DIAGRAM FOR TM-U200B/U200PB/U210B/U210PB NO.2 — 155 —...
  • Page 165 CASIO TECHNO CO.,LTD. Overseas Service Division Nishi-Shinjuku Kimuraya Bldg. 1F 5-25, Nishi-Shinjuku 7-Chome Shinjuku-ku, Tokyo 160-0023, Japan...