GENERAL
This
Technical
Manual
describes the
maintenance,
troubleshooting, and
operating
principle
of the
daisy
wheel printer.
1.
Basic
Specifications
Print
speed
Print system
Print
wheel
Character spacing
Line
spacing
Form
feed
Max. form
width
Copies
Ribbon
Interface
Environmental
requirements
Weight
1 8
characters/second
(Max.)
Daisy
wheel
1
OO-characters/wheel
1 10
characters
under
10 pitch.
132
characters
under
12 pitch.
165
characters
under 15 pitch.
82 to
220
characters
under proportional
spacing
mode.
1
/48
inch
(1
/96
inch
possible
by
ESC sequence)
Friction feed
13
inches
(printing line 1 1
inches)
Original copy
+
3
copies
IBM 82
compatible
multi strike or
single
strike ribbon
(selectric
II
ribbon)
Centronics
parallel
interface
RS232C
Serial
Interface (Option)
Temperature 4
1°F
~95°F(5 ~35°C)
Humidity
30%
~85% (no dew
condensation)
About 27.5 lbs.
(about
12.5 kg)
2.
Main Component Units
This printer consists
of the following three major units.
2.1
Print unit
The print unit is
comprised of the frame assembly, carriage
and
linear motor unit
and the form
feed mechanism. Occupying
the largest
part
of the print unit,
the
carriage performs
lateral feed, character selection,
printing and ribbon feed.
Use
of a liner
motor makes the
carriage simple in design for easy
maintenance.
2.2
Control
unit
This
unit provides all the
controls for the printer
and consists of
a
power supply
and
two
CPU boards. One
of
the CPU
circuit
boards
serves as the slave CPU
circuit board
for controlling the print
unit mechanisms,
and the other is
the
master
CPU
circuit baord for
controlling the slave
CPU circuit board and for
the commu-
nication with
the
host CPU.
2.3 Cover unit
The cover
unit
consists
of a bottom cover,
center cover,
top cover, and
acoustic
cover. Except for two
screws, snap-latches
are used for connection between the
covers.
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