2. ELECTRONICS SPECIFICATIONS

EO18-33025

2.3 Description of the Main PC Board

JP24 (Stepping Motor Thermistior):

Signal

Pin

No.

 

MOTOR TEMP

1

GND

2

This connector is connected to the Stepping Motor Thermistor. MOTOR TEMP signal is temperature of the stepping motor.

JP28 (Feed Key/Status LED):

This connector is connected to the Feed Key and Status LED.

 

 

 

 

 

 

Signal

Pin

 

 

 

No.

 

 

 

 

 

 

 

+3.3V

1

 

 

 

GREEN_LED

2

 

 

 

RED_LED

3

 

 

 

T_KEY

4

 

 

 

GND

5

 

 

JP29 (Feed Gap Sensor, Lower): This connector is connected to the Lower Feed Gap Sensor (Photo Diode).

Signal

Pin

No.

 

+3.3V

1

GAP_E

2

Print Head (JP30):

JP30-1

Signal

Pin

No.

 

VH (+24V)

1

VH (+24V)

2

TM

3

TM

4

/STB2

5

GND

6

GND

7

JP30-2

Signal

Pin

No.

 

GND

1

GND

2

VDD (+5V)

3

/STB1

4

/LAT

5

CLK

6

DI

7

VH (+24V)

8

VH (+24V)

9

This connector is connected to the print head (for TS model, 300dpi). The voltages and signals for controlling the print head are input/output into/from the connector.

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Toshiba B-EV4 manual Print Head JP30