Brother PT 1800 - P-Touch 1800 Thermal Transfer Printer, Руководство по обслуживанию

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3.1 OUTLINE OF CONTROL ELECTRONICS
Figure 3.1-1 shows a block diagram of the control electronics of the PT-1800/1810. The
control electronics consists of three printed circuit boards (main PCB, sensor PCB, and
power supply PCB), a DC motor, and a thermal print head assembly.
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PCBs
Main PCB:
This manages all the PT-1800/1810 components including an LCD, DC motor, key pad,
and thermal print head.
Sensor PCB:
This supports the sensors that detect the tape width and ink ribbon type in the tape
cassette.
Power Supply PCB:
This has electrolytic capacitors for output lines, an AC line adapter jack, battery terminal
plates, and other related electronic devices to feed power to the control electronics and
the DC motor from the AC line adapter or batteries.
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DC Motor
The DC motor is a power source to feed tape and ink ribbon.
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Thermal Print Head
This is a thick-film thermal print head which integrates a heat generator (consisting of
128 heating elements vertically aligned) and driver circuitry.
Figure 3.1-1 Control Electronics of PT-1800/1810