Olivetti CMS 140 B Service Manual
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Cash Register
CMS 140 B
SERVICE MANUAL

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Summary of Contents for Olivetti CMS 140 B

  • Page 1 Cash Register CMS 140 B SERVICE MANUAL...
  • Page 2 PUBLICATION ISSUED BY: Olivetti Lexikon, S.p.A. Documentazione 77, Via Jervis - 10015 Ivrea (Italy) Copyright © 1998, by Olivetti All rights reserved...
  • Page 3 PREFACE This manual is addressed to the field engineers who will install and service the CMS 140B cash register. It provides all the information needed for a correct product maintenance. SUMMARY This manual is divided into seven chapters. The first three chapters describe the operating, functional checks, and maintenance and repair procedures. Chapter 4 describes the disassembly and adjustment procedures.
  • Page 5: Table Of Contents

    CONTENTS 4. DISASSEMBLY PROCEDURE/HOW 1. OVERVIEW ........TO LOCATE THE ASSEMBLIES TECHNICAL SPECIFICATIONS ..HOW TO LOCATE THE POWER 2. SPECIFICATIONS AND ASSEMBLY ........OPERATING PRINCIPLES ..THE REMOTE BATTERIES/ LOCATION OF ON/OFF SWITCH . SPECIFICATIONS ......MACHINE DISASSEMBLY - 2.1.1 Features ........
  • Page 7: Overview

    1. OVERVIEW Fig. 1-1 Overall View of the Cash Register 686770R Service Manual...
  • Page 8: Technical Specifications

    TECHNICAL SPECIFICATIONS Type: Electronic cash register with 8 departments Display: Bright double display with 16x6 mm numbers, error symbol, change, subtotal, minus, total and quantity Display capacity: 9 digits Printer: ECR exclusive serial printer Paper supply: 57 mm wide wood-free single ply tape Memory protection: Approx.
  • Page 9: Specifications And Operating Principles

    2. SPECIFICATIONS AND Paper (supplied by the user) Type: Regular paper roll OPERATING PRINCIPLES Size: Width 57.5 mm ± 0.5 mm Roll diameter: 80 mm or less SPECIFICATIONS Thickness: 0.06 ~ 0.085 mm Average weight: 47 g/m ~ 64 g/m (40 ~ 55 kg/ 2.1.1 FEATURES...
  • Page 10: Mechanisms

    2.1.3 MECHANISMS The carriage then shifts to the next column (column- shift operation). When charge to the trigger coil is This printer consist of two print wheels, a hammer, and extended during character selection at the end of a line, a carriage equipped with an ink roll.
  • Page 11: Operating Principles

    OPERATING PRINCIPLES 2.2.1 TRANSMISSION/SELECT MECHANISM As shown in Fig. 2-2, this mechanism consists of the reduction gear train, and paper feed gear train. Fig. 2-2 Transmission/Select Mechanism 686770R Service Manual...
  • Page 12 Reduction gear series The rotation of the print changeover cam is locked by the action of the selective pawl, so the paper feed (See Fig. 2-2 and 2-3) ratchet wheel (8) on the same shaft as the selective The reduction gear train consists of the motor gear, gear assembly, the print wheel, and the detection reduction gear, planet gear, selective drive gear, wheel also rotate at the same time.
  • Page 13 Select mechanism Print gear series (See Fig. 2-2 and 2-4) (See Fig. 2-2 and 2-4) As shown in Fig. 1-4, the select mechanism consists The print gear series consists of the print changeover of the selective gear assembly, trigger coil, trigger cam and the print gear.
  • Page 14 Paper feeding gear series (See Fig. 2-2 and 2-5) The paper feed ratchet on the paper feed drive gear assembly operates (21) due to spring force and As shown in Fig. 2-5, the paper feeding gear series meshes with the teeth of the paper feed ratchet wheel consists of the paper feed ratchet wheel, paper feed on the same shaft as the selective gear.
  • Page 15 2.2.2 SENSOR MECHANISM (See Fig. 2-6) The sensor also generates a reset signal at each rotation of the print wheel. Waveform rectification of The sensor mechanism consists of the sensor as- these signals should be performed by the user, as sembly and the sensor gear.
  • Page 16: Printing Mechanism

    2.2.3 PRINTING MECHANISM Thus, the print wheel is pressed in the direction of The printing mechanism performs two operations: arrow (4) by the hammer, and printing is performed. printing and carriage movement. The print wheel, similar to the print changeover cam, Printing operation rotates once with each printing operation, and printing is performed during the first half of the print shaft...
  • Page 17: Inking Mechanism

    2.2.4 INKING MECHANISM (See Fig. 2-9) The ink roller is held lightly against the other periphery of the print wheel by the force of the ink roller spring. When the print wheel rotates, the ink roller also rotates and supplies ink to the wheel. Fig.
  • Page 18: Paper Feeding Mechanism

    2.2.5 PAPER FEEDING MECHANISM The paper feeding mechanism performs two opera- The rotation of the print changeover cam restores the tions: carriage return and paper feeding. return lever to its original position ( arrow (3)) and rotates the positioning plate with which it is meshed Carriage return operation arrow (4)).
  • Page 19 Paper feeding operation When the paper feed ratchet within the paper feed drive (See Fig. 2-11) gear assembly strikes the return lever, it disengages Paper is feed while the paper feed drive gear assem- from the paper feed ratchet wheel, the rotation of the bly performs one rotation.
  • Page 20: Print Cycle Initialization

    2.2.6 PRINT CYCLE INITIALIZATION Consecutive printing 1) The process for printing the initial line similar to To confirm that carriage is in stand-by status (at the that for “Printing the first line” above. first column), initialization must be performed prior to 2) Printing of second and later lines begins as printing and paper feeding.
  • Page 21: Handling, Maintenance

    3. HANDLING, MAINTENANCE HANDLING THE PRINTER 3.1.1 PRECAUTIONS ON PRINTER HANDLING Transport precautions (See Fig. 3-1) 1) When transporting the printer, never carry it by the jumper lead only. 2) Avoid impact to the printer by dropping, striking it, or collision with another printer. Fig.
  • Page 22: Paper Installation

    Use precaution Paper insertion precautions • Since the printer employs a permanent magnet (in • Insert the paper straight into the paper entrance. the motor section), avoid using it in locations Never insert paper having an uneven leading exposed to excessive iron filings, dirt, dust, or edge;...
  • Page 23: Ink Roller Installation

    3.1.3 INK ROLLER INSTALLATION Mounting the Ink roller (See Fig. 3-4) • Place the ink roller in the cutout sections of the carriage, then press down gently until it clicks into place. Fig. 3-4 Ink Roller Installation Replacing the ink roller (See Fig.
  • Page 24: Maintenance

    MAINTENANCE 3.2.2 INSPECTION Check the printer to see if it is being operated properly To prevent potential trouble, make sure cleaning and and if it is being maintained in optimum condition. If inspection is carried out according to the points de- any unsatisfactory points are discovered, they should scribed in the following subsections, depending on the be remedied.
  • Page 25: Problem Resolution

    PROBLEM RESOLUTION In general, the printer should be replaced when problems arise. Depending on the particular problem, however, the printer may be easily repaired. Therefore, take necessary corrective actions according to the following table. In the case of problems for which no corrective actions exist in this table, the printer should be replaced. 686770R Service Manual...
  • Page 26 Service Manual 686770R...
  • Page 27: Printer Pin Assignments

    PRINTER PIN ASSIGNMENTS Fig. 3-6 illustrates the pin assignments of the printer circuitry. NOTE: The printer sensor side is regarded as “1”. 3-6 Pin Assignment Diagram 686770R Service Manual 3-7 .
  • Page 29 TIMING CHART 686770R Service Manual 3-9.
  • Page 31: Disassembly Procedure/How To Locate The Assemblies

    4. DISASSEMBLY PROCEDURE/HOW TO LOCATE THE ASSEMBLIES Fig. 4-1 Cash Register Front View HOW TO LOCATE THE POWER ASSEMBLY Fig. 4-2 Cash Register Rear View 686770R Service Manual...
  • Page 32: The Remote Batteries/ Location Of On/Off Switch

    THE REMOTE BATTERIES/ LOCATION OF ON/OFF SWITCH • Remove the cover (1). • Remove the paper roll and roll holder. • Remove the battery housing cover (2) in the direc- tion of the arrow. Fig. 4-3 Locating the Battery Compartment and Printer Cover Fig.
  • Page 33: Machine Disassembly - Reassembly

    MACHINE DISASSEMBLY - REASSEMBLY 4.3.1 MACHINE CASE Reassembly Disassembly • Correctly position the case on the machine. • Unplug the machine power cord from the electrical • Push the case (1) in the direction of arrow (5). wall outlet. • Tighten screw (1). •...
  • Page 34: Main Board And Display

    4.3.3 MAIN BOARD AND DISPLAY Reassembly Disassembly Perform the disassembly procedure in reverse order. • Remove the machine case. • Disconnect the printer connector (1). • Disconnect the paper feed motor connector (2). • Disconnect the keypad connectors (3). • Disconnect the battery supply connectors (4).
  • Page 35: Battery Compartment

    4.3.5 BATTERY COMPARTMENT Reassembly Disassembly • Perform the disassembly procedure in reverse • Remove the machine case. order. • Remove the securing screws (1). • Remove the battery compartment. Fig. 4-9 Battery Compartment Disassembly/Reassembly 4.3.6 KEYPAD Reassembly Disassembly • Correctly position the keypad (3) and the ON/OFF •...
  • Page 37: Block Structure Chart

    5. BLOCK STRUCTURE CHART • Block G: Black-Out Detection Signal: As illustrated in the Chapter 6. Blackout signal is generated when voltage in Vcc line drops to 3.0 V. This signal gets “low” at the CIRCUITRY time of blackout and is transferred to Port 42 for CPU to dispose it.
  • Page 39: Schematics And Diagrams

    6. SCHEMATICS AND DIAGRAMS SYSTEM BLOCK DIAGRAM Fig. 6-1 System Block Diagram 686770R Service Manual...
  • Page 40: Power Supply Circuit

    POWER SUPPLY CIRCUIT Fig. 6-2 Power Supply Circuit Service Manual 686770R...
  • Page 41: Reset Circuit

    RESET CIRCUIT Fig. 6-3 Reset Circuit POWER FAIL CIRCUIT Fig. 6-4 Power Fail Circuit 686770R Service Manual...
  • Page 42: Display Circuit

    DISPLAY CIRCUIT Fig. 6-5 Display Circuit Service Manual 686770R...
  • Page 43: Keyboard Circuit

    KEYBOARD CIRCUIT Fig. 6-6 Keyboard Circuit 686770R Service Manual...
  • Page 44: Buzzer Circuit

    BUZZER CIRCUIT Fig. 6-7 Buzzer Circuit BATTERY CIRCUIT Fig. 6-8 Battery Circuit Service Manual 686770R...
  • Page 45: Printer Circuit

    PRINTER CIRCUIT Fig. 6-9 Printer Circuit 686770R Service Manual 6-7 .
  • Page 47: 6.10 Schematic Diagram

    6.10 SCHEMATIC DIAGRAM 686770R Service Manual 6-9.
  • Page 49: Assembly Construction

    7. ASSEMBLY CONSTRUCTION 686770R Service Manual 3-11 7-1.
  • Page 51 REF. CODE DESCRIPTION SPARE PARTS CATALOGUE IMPORTANT This publication is written by TA TRIUMPH-ADLER Vertriebs GmbH (Service Department). This document is the only document to which reference may be made for ordering spare parts Spare parts should be ordered at the following address: TA Triumph-Adler Vertriebs GmbH Service Department Fürther Straße 212 Nuremberg...
  • Page 52 EXPLODED PARTS REF. CODE DESCRIPTION 037498 N MAIN BOARD 037499 P M38203M4-374FP 037500 U DISPLAY LCO- B5180A 037502 J COMPLETE KEYBOARD ASSEMBLY 037503 K KEY DRAWER 037504 L PRINTER M31-041 128710 D MOTOR 037505 M DRAWER GROUP 037506 N COVER ASSEMBLY 037507 P PRINTER COVER 037508 Y...
  • Page 53 EXPLODED PARTS REF. CODE DESCRIPTION A - 3 686770R Spare parts catalogue...
  • Page 55 STA A A A A T T T T T O DI A O DI A O DI A O DI A O DI AGGIORNAMENT GGIORNAMENT GGIORNAMENT GGIORNAMENTO O O O O GGIORNAMENT UPDA A A A A TING ST TING ST TING STA A A A A TUS TING ST...

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