TallyGenicom 6300 Series, Руководство по обслуживанию

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Chapter 1. Technical Overview
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1.3 Mechanics
1.3.1 Enclosure
The 6306 and 6312 are available in Table Top, Open Pedestal, and Enclosed Pedestal
configurations.
The standard color is TallyGenicom 401173-110, Cloud White.
1.3.2 Print Mechanism
The print mechanism employs a stored energy dot matrix hammer that is held retracted by a
permanent magnet field and released by a pulsed electromagnet. The hammer is based on flexure
technology and incorporates a ball type impactor that produces a printed dot of
approximately .016” diameter. The
6306 hammerbank has 42 hammers centered 0.325 inches
apart and the 6312 has 78 hammers at a spacing of 0.175 inches. The hammerbank is mounted on
cantilever springs and the hammerbank/spring system is tuned to a resonant frequency of 30.2 Hz
for the 6306 and 60.4 Hz for the 6312. The hammerbank is shuttled horizontally by driving an
attached bi-
directional solenoid at the appropriate frequency to sustain the hammer bank’s
resonant motion.
Alphanumeric text and graphic shapes are placed on paper by striking the hammers against inked
ribbon to make small dots on the paper. As the hammers are shuttled horizontally across the paper,
dots are placed in the appropriate positions. Dots are vertically positioned by moving the paper in
small increments through the print station.
1.3.3 Paper Drive
1.3.3.1 Tractors
The paper is moved by means of 2 tractors that are located above the print line. Each tractor has a
6-pin engagement with the paper and has stainless steel pins to extend their wear life. The tractors
are adjustable for form width and horizontal forms adjustment.
A scale located on the print mechanism shows where the print columns are (for 10 CPI), to
provide for accurate horizontal forms alignment.
1.3.3.2 Paper Advance
The control panel keys provide for vertical adjustment of paper position up and down in small and
large increments. Line feed ( LF ) and Form feed ( FF ) keys provide quick, controlled paper
advance. A
VIEW
key is incorporated that advances the paper such that the last line printed can
be viewed through the printer window. The paper is returned to the next print line when the
VIEW
key is pressed a second time.