Specifications

LA 310 - Service Manual
4-5
adjustment and to save it in NVM. This adjustment is based on the type of paper
used.
g. Turn the printer off.
NOTE: This adjustment may also be performed in friction mode.
The setting saved in NVM during this operation is not reset by the FACTORY DFLT
function available in the set-up mode.
4.4 Service Tests
4.4.1 Printing Self Test
The printer has the capability to execute a printing self test, if paper is loaded. This test
consists of printing the 94 printable characters of the ASCII character set continuously
in an 80 or 136 character wide swirl pattern, depending on the PAPER WIDTH set-up
feature.
The print quality and printing modes are also defined by Set-up.
This test is initiated when the Quiet button (PRINT TEST button on the internal
console) is pressed at power up. This test can be initiated with the cover open at power-
up, but the test can start only if the cover is closed and if paper is loaded.
Detected failures cause the Fault indicator to blink. When no paper is detected the Fault
indicator is on, once the paper is loaded, manually or using the FF button, the test starts
automatically provided that the cover is closed.
During this test the carriage home position shall be checked every 2 pages.
If this test fails,the test is stopped and the Fault indicator blinks.
4.4.2 LA 310 MultiPrinter Service Test
This test consists of unique test patterns and portions of all the other test patterns.
This test is designed to thoroughly exercise all mechanical elements of the LA 310
MultiPrinter.
For this test, the form length (at least 11": if a paper length of less than 11" is stored, the
printer will default to an 11" setting) and paper width are defined by set-up.
For each form used during this test, the First line printing and the Last line printing
test are both performed.