Specifications
LA 310 - Service Manual
4-3
The adjustment setting can be changed by pressing the LF switch which causes the next
number to be printed.
Pressing the FF button will store the last selection and willl initiate the Printhead
pattern test.
Switch off to stop this test.
4.3.2 Print Head Pattern Test
The printer is capable of executing a print head pattern which will allow Field Personnel
to check the print head for individual needle wear.
This pattern shall include individual needle activation.
4.3.3 PLU/PLD Test
The printer is capable of executing a print pattern as follows:
Characters "MID" are printed starting at column one of the current line;
then the following sequence is executed from the left margin (paper width is defined by
set-up):
- "PLU" characters are printed after a 1/2 inch partial line up
- then "MID" characters are printed after a 1/2 inch partial line down
- then "LPD" characters are printed after a 1/2 inch partial line down
- then "MID" caracters are printed after a 1/2 inch partial line up
then a carriage return is performed.
This pattern is executed continuously until the FF button is pressed which causes the
next test, Carriage Motion test, to start. Printing is performed at 10 CPI, normal print
mode, draft quality, at 6 lines per inch.