The Speaker Company TTP 248M User Manuals

Table of Contents

• THERMAL TRANSFER / DIRECT THERMAL BAR CODE PRINTER

  1
• MANUAL

  1
  • TTP 248M

    1
• TABLE OF CONTENT

  2
• 1. Foundamentals About the System

  4
  • Printer Overview

    4
    • Front View

      4
    • Rear View

      4
  • 1.2 Pinter Specification

    5
  • 1.3 Available Bar Codes

    7
  • 1.4 Text Specification

    8
    • Specification of Fonts

      8
    • File Head of Font ( Fixed 32bytes )

      9
    • VF1~4

      9
    • BF3~4 VF3~4

      10
• 2. Supply Specifications

  11
  • 2.1 Types of Paper

    11
  • 2.2 Specification

    11
  • 2.3 Ribbon Specification

    12
• 3. Circuit Description

  13
  • 3.1 MCU

    13
  • 3.2 MCU PIN Description

    15
  • 3.3 Reset Circuit

    24
  • 3.4 Memory System

    25
  • 3.5 Decoder Circuits

    26
  • 3.6 Memory Address Map

    26
  • 3.7 Firmware Address Map

    29
  • 3.8 Power Down Sensor

    30
  • 3.9 Print Head

    31
  • 3.10 Motor System Circuit

    32
  • 3.11 Sensor Circuits

    33
  • 3.12 Serial Port Circuit

    36
  • 3.13 Parallel Port Circuit

    37
  • 3.14 Cutter Drive System

    38
  • 3.15 PIN Switch Circuits

    39
  • 3.16 Connector Circuits

    39
  • 3.17 Optional Items Circuits

    42
• 4. Machanism

  43
  • 4.1 Remove the Covers and LCD Panel

    43
  • 4.2 Replacing the Mainboard

    46
  • 4.3 Replacing the Power Supply Unit

    47
  • 4.4 Replacing the Ribbon Rewind Spindle

    48
  • 4.5 Replacing Ribbon Supply Spindle

    51
  • 4.6 Replacing Label Supply Spindle

    53
  • 4.7 Replacing Label Rewind Spindle

    55
  • 4.8 Replacing Platen

    57
  • 4.9 Replacing Motor

    59
  • 4.10 Replacing Print Head

    61
  • 4.11 Replacing Print Head Pressure Adjustment Knob

    62
  • 4.12 Replacing Gap/Black Mark Sensor

    64
  • 4.14 Replacing Print Head Lift Lever Sensor

    67
• 5. Troubleshooting

  68
  • 5.1 Troubleshooting

    68
  • 5.2 Calibrate Gap/Black Mark Sensor

    69
  • 5.3 Self-test

    70
  • 5.4 DRAM Clear

    70
  • 5.5 Diagnosis Operation Procedure

    70
  • 5.6 Cleaning Print Head

    71
• Update History

  72