TSC EZS TDM-30 User manual

i
SERVICE
MANUAL
TDM-30
Direct Thermal Portable Printer

ii
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 Printer Top Cover (with Keys Control Board).........................7
3.2 Replacing the Linerless Platen Roller Assembly (Option).............................8
3.3 Replacing the Platen Roller ..........................................................................10
3.4 Replacing the Keys Control Board ...............................................................12
3.5 Replacing the Main Board Assembly............................................................13
3.6 Replacing the Bluetooth Module (Option) ....................................................14
3.7 Replacing the Gear Assembly & Stepping Motor.........................................15
3.8 Replacing the Print Head Assembly .............................................................17
3.9 Replacing the Black Mark Sensor Assembly ...............................................19
3.10 Replacing the Open Sensor.........................................................................20
4. TROUBLESHOOTING ........................................21
4.1 Common Problems........................................................................................21
5. Maintenance ...............................................22
Revise History................................................23

2
1. FUNDAMENTAL OF THE SYSTEM
1.1 Overview
Front View
For LED version
1. Power on/off button
2. Feed/stop button
3. LED indicators
4. Media cover
5. Media cover window
6. Media cover release button
1
5
6
2
3
4

3
For LCD version
1. Power on/off button
2. Feed/stop button
3. LED indicators & LCD screen
4. Media cover
5. Media cover window
6. Media cover release button
3
6
5
4
1
2

4
Interior View
1. Tear edge
2. Print head
3. Platen roller
4. Black mark sensor
3
2
4
1

2
Rear View
1. Li-ion Battery
2. Battery open clasp
3. Interface cover
4. Power jack
5. USB interface
1
3
2
4
5

3
2. ELECTRONICS
2.1 Summary of Board Connectors
Main board top
Connector
Description
1
12V DC IN
2
Micro USB Connector
3
LED/LCD and Key Board Connector
4
Download F/W Connector
Pin
Description
1
3.3V
2
MCI0_DA0
3
MCI0_DA1
4
MCI0_DA2
5
MCI0_DA3
6
MCI0_CK
7
MCI0_CDA
8
No Connection
9
GND

4
5
TPH Connector
6
Stepping Motor Connector
Pin
Description
1
AOUT1
2
AOUT2
3
BOUT2
4
BOUT1
7
WiFi Module Connector
Pin
Description
1
RESET
2
3.3V
3
RTS
4
MISO
5
CTS
6
MOSI
7
CLK
8
Interrupt
9
WB GPIO
10
GND
8
Black Mark Sensor
Pin
Description
1
3.3V
2
BM_E
3
BM_R
4
3.3V
9
Gap Sensor
Pin
Description
1
3.3V
2
BM_E
3
BM_R
4
3.3V
10
Head Open Sensor
Pin
Description
1
HEAD

5
2
GND
11
Cradle Connector
Pin
Description
1
12V
2
Charge Status
3
ISET
4
GND
12
RTC Battery
Pin
Description
1
VDDBU
2
GND

6
Main board bottom
Connector
Description
1
Battery connector Positive Electrode
Pin
Description
1
NTC
2
NTC
3
+
4
+
2
Battery connector Negative Electrode
Pin
Description
1
-
2
-
3
Smart BAT SCL
4
Smart BAT SDA

7
3. MECHANISM
3.1 Replacing the Printer Top Cover (with Keys Control Board)
1. Remove four screws from the back of the printer as indicated.
2. Remove the cable on cable connector and take out the printer top cover (with keys
control board).
3. Reassemble the parts in the reverse procedures.
Screws
Cable connector
Printer Top Cover
(with Keys Control Board)

8
3.2 Replacing the Linerless Platen Roller Assembly (Option)
1. Open the printer cover by pressing the media release button.
2. Remove one screw on the linerless platen roller assembly as indicated.
3. Pull out and remove the linerless platen roller assembly as indicated.
Screw

9
4. Remove/Replace the linerless platen roller assembly.
5. Reassemble the parts in the reverse procedures.
Linerless Platen Roller Assembly

10
3.3 Replacing the Platen Roller
1. Open the media cover by pressing the media cover release button.
2. Remove one screw on the platen roller assembly as indicated.
3. Pull out and remove the platen roller assembly as indicated.
Screw

11
4. Remove/Replace the platen roller assembly.
5. Reassemble the parts in the reverse procedures.
Platen Roller Assembly

12
3.4 Replacing the Keys Control Board
1. Refer to section 3.1 to remove the printer top cover (with keys control board).
2. Remove four screws on the keys control board as indicated.
3. Remove/Replace the keys control board.
4. Reassemble the parts in the reverse procedures.
Screws
Keys Control Board

13
3.5 Replacing the Main Board Assembly
1. Refer to section 3.1 to remove the printer top cover (with keys control board).
2. Remove three screws on interior mechanism and disconnect all the connectors on the
main board assembly as indicated.
3. Remove one screw on main board as indicated.
4. Remove/Replace the main board assembly.
5. Reassemble the parts in the reverse procedures.
Screws
Screw
Keys Control Board

14
3.6 Replacing the Bluetooth Module (Option)
1. Refer to section 3.1 and 3.4 to remove the Printer Top Cover (with Keys Control
Board) and the Main Board Assembly.
2. Turn to the rear side of main board assembly. The Bluetooth module was embedded
in main board as indicated.
3. Remove/Replace the Bluetooth module, which embedded in main board assembly.
4. Reassemble the parts in the reverse procedures.
Bluetooth Module
(embedded)
Bluetooth Module (Option)

15
3.7 Replacing the Gear Assembly & Stepping Motor
1. Refer to section 3.1 to remove the Printer Top Cover (with Keys Control Board).
2. Remove three screws on interior mechanism and disconnect all the connectors on the
main board assembly as indicated.
3. Turn the print mechanism to right side than open the gear assembly cover as
indicated.
Screws
Gear assembly cover

16
4. Remove the gears and release two screws as indicated.
5. Remove/Replace the stepping motor assembly.
6. Reassemble the parts in the reverse procedures.
Screws
Stepping Motor Assembly