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12-02-2003
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2.3 Installation
PRN604-Sis fastened in the product by 4 M3.3 screws. The cables (for
the thermal head, the stepper-motor and detector) are placed in the
thermal printer connector on the PCB. 1 Mounting hole is grounded.
See drawing for more details.
(a) To connect or remove the connector, always turn off the power in
advance. If the connector is connected or removed while the
power to the printer is on, errors may occur.
(b) The connector of each cable must be correctly locked and
connected. The connector at the head side has no lock feature.
Check that the connector at the head side is completely inserted.
(c) To install the interface, carefully check each cable so that
excessive force is not applied to each cable. Especially, carefully
check the head connection cable because it affects the head
pressure force. If the print head connector is not completely
connected, overheating or burning may occur in the print head.
2.4 Power supply
Single power supplies for the PRN604-Scontroller board. Voltage range
is 6-8,5VDC. 4A minimum @ 7,2V. Make sure that voltages never
exceed 8,5VDC.
(a) The power supply unit that satisfies the specified specifications
must be used. If a power supply unit that does not satisfy the
specified specifications is used, normal operation is not assured
and errors may occur.
(b) To turn on or off the power, a protective circuit must be mounted
on the control board in advance. For safety, the following
voltage change conditions must be satisfied: