Vector 4 - Page 162

VECTOR 4
TECHNICAL INFORMATION.
Enter a number up to 95, then press [RETURNL
Once you have answered these four questions, the screen will prompt for the
following tests:
A) SKEWED ASCI1I E) VERTICAL POSITIONER
B) HORIZONTAL POSITIONER F) BOLDFACE TYPE
C) CHANGE PRINTER OPTION G) RETURN TO CP/M
D) BACKWARD PRINTING
A) SKEWED ASCH - Should be used if you are having problems with the print
quality,. SKEWED ASCII is a test which prints all ASCII characters,
beginning
one character further in each successive line (producing a
diagonal, or skewed, effect). It is helpful in determining print quality
problems. It verifies that all letters are printed correctly and with good
print quality.
If the problem is mechanical, such as a worn printer wheel, the letters
will be smudged. However, if it is an electronic problem, the characters
may be out of order or they may be be partially or wholly missing.
Print quality problems can also be caused by a worn platen.
B) HORIZONTAL POSITIONER - This test allows for the testing of the power
supply. The power supply is the source of energy for the printer as a
whole. Considerable energy must be transmitted to the carriage drive or
carriage motor to work. The print head is moved to different
randomly-selected positions across the line of text, filling the entire line
before going on to the next line. If the line is not evenly-spaced when
the print head moves to the nxt line, then the power supply should be
checked.
C) CHANGE PRINTER OPTION - Allows you to quit the program you may be
in, and go back to the beginning of the test. This is not a test to
determine any damage or fault. |
D) BACKWARD PRINTING - Use this test if the problem is overlapping or
missing characters. This test shows any horizontal positioning
deficiencies in the printer. -
E) VERTICAL POSITIONER - This test is useful in checking the condition of
the tractor advance, paper alignment, the platen motor and tractor motor
gears. It instructs the printer to print one line of ASCII data, advance
the paper, and then print another line. This process is repeated for
several lines.
NOTE: This test cannot be run with a tractor feed in use. When you
are running this test, remove the tractor feed.
09-01-82
7200-0001
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