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3. Design And Operation
3.1 Front View
Error Lamp (RED)
Eject
Eject
If the "error light" is flashing, some of the following conditions may exist:
1. The paper chamber is empty
2. The drawer is not properly closed
3. The temperature of the thermal head is more than the limit temperature for printing
3.2 Procedure to Replace Paper Roll
1. Push the "EJECT" button and the drawer will pop out. (Fig. 1)
2. Firmly pull the drawer out and open the lid. (Fig. 2a). Take away a core of paper
3. Place the paper roll the "box". (Fig. 2b).Make sure a small amount of paper extends
out acting as a lead.
4. Push the drawer back slightly and close the lid until it locks into position. (Fig 3)
5. Push the drawer back into the main housing until it locks with a "click". (Fig. 4)
DCA
Intertel
Power Lamp (Green)
ON/Off Switch
Error Power
Feed
On/Off
Feed (Paper End)
6
DCA
Intertel
4. Block Diagram
Power
Voltage
Switch
Regulator 1
CN7
DC 10~16V
CN6
Power
Voltage
Detector
Power
Relay
CN4
Power
Switch
Power
Switch
Mainboard. Upper
CN5
CN2
Mainboard. Lower
Expended
1/0
Data Bus
ROM
RAM
(32KB)
(32KB)
Address
Bus
CN1
Host
DCA
Intertel
Head up
Paper
Empty
Switch
Switch
CN8
CN10
CN9
Paper Empty Detector
Head Up Detector
Stepping
Vm
Stepping
CN11
Motor Driver
Vm
Reset
Power
Switch
5V
5V
LED Driver
CN3
CPU
Paper Feed
Detector
Serial
Interface
Controller
DC/DC Convertor
7
DCA
Motor
LED
Board
Intertel
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