TSC Alpha-3R Manual de usuario

SERVICE

MANUAL

Alpha-3R

Direct Thermal Portable Printer

Contents

1. FUNDAMENTAL OF THE SYSTEM ................................ 2

1.1 Overview ........................................................................................................... 2

2. ELECTRONICS............................................... 3

2.1 Summary of Board Connectors....................................................................... 3

3. MECHANISM ................................................ 7

3.1 Replacing the Media Cover.............................................................................. 7

3.2 Replacing the Keys Control Board.................................................................. 9

3.3 Replacing the Bluetooth Control Board (Option)......................................... 10

3.4 Replacing the Media Holder Assembly ......................................................... 11

3.5 Replacing the Main Board Assembly ............................................................ 14

3.6 Replacing the Print Head Assembly.............................................................. 15

3.7 Replacing the Stepping Motor....................................................................... 16

3.8 Replacing the black mark sensor assembly................................................. 17

3.9 Replacing the WiFi control board (Option) ................................................... 18

4. TROUBLESHOOTING......................................... 19

4.1 Common Problems......................................................................................... 19

5. Maintenance ............................................... 21

Revise History ................................................ 22

1. FUNDAMENTAL OF THE SYSTEM

1.1 Overview

Front View

1. LED indicator

2. Feed button

3. Power on/off button

4. Media cover release button

5. Media holder adjustment knob

6. Media cover

Interior View

1. Print head

2. Black mark sensor

3. Media holder

4. Platen

Rear View

1. Li-ion battery

2. Battery open clasp

3. USB interface

4. Power jack

2. ELECTRONICS

2.1Summary of Board Connectors

Main board top

Connector

Description

LED & KEY board

WiFi or Bluetooth module connector

Description

3.3V

BT/WiFi Reset

BT RXD

BT RTS

BT TXD

BT CTS

WiFi wake up

WiFi TCP

BT/WiFi Switch

GND

Stepping motor

Description

OUT1

OUT2

OUT1

OUT2

Download F/W connector

Description

3.3V

GND

RESET

BMS

NPCS0

MOSI

MISO

SPCK

Head open sensor

Description

HEAD

GND

USB & RS 232 connector

12V DC IN

TPH connector

Paper sensor

Description

3.3V

BM_E

BM_R

3.3V

Main board bottom

Connector

Description

Battery connector

3. MECHANISM

3.1 Replacing the Media Cover

1. Remove two screws from the back of the printer and two screws from the front of

the printer.

2. Take the printer top cover off.

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