COMPUTER
IBM PC/AT or true compatible with the following configuration:
512K RAM minimum
12 Mhz Clock
20 Megabyte Hard Disk
1.2 M Floppy Disk
Standard Keyboard
Monochrome or Color System
Parallel Printer Port (2 required for plotting option)
Serial Port (2 required for automatic densitometer readings)
PRINTHEAD OPERATING TEMPERATURE:
The PRINTHEAD OPERATING TEMPERATURE is variable under program control from
ambient temperature to 50 degrees Centigrade.
TCYCLE: The TCYCLE is variable under program control from 1.00 mS to 25 mS in fixed
increments as shown in Tcycle menu.
DOT PULSE DURATION:
The DOT PULSE DURATION (Ton) is variable under program control from 10 microseconds to
2 milliseconds.
APPLIED VOLTAGE:
The APPLIED VOLTAGE is continuously variable from approximately 13 volts to 28 volts from
the printer front panel.
TEST PATTERN DESCRIPTIONS:
Within the Model 200 there are several operator selectable test patterns that may be chosen to run
for a desired test session. Test patterns that are included within the standard system configuration
are a Checkerboard pattern and a Walking One pattern. Other supported test patterns include a
Self-Generating Barcode module and a Pixel On/Off pattern. The Checkerboard patterns are
available in various sizes and densities and may be sequenced during a test session. This test
images allow an operator to study the effects of changing the dot duty cycle (number of heating
elements energized per dot line) as opposed to the electrical duty cycle. Available densities
range from 10% to 100% patterns in 10% increments.
With the Walking One pattern an operator will see a single element imaged per dot line.
The output pattern will appear as diagonal line drawn from upper left to lower right one dot size
in thickness. This pattern could be used to test the integrity of the dots across the printhead or
used to examine the shape of a single dot imaged on a particular substrate.
