User Guide User guide

Using Set-Up Mode
5-34
Using the Diagnostic Functions
The TESTS function allows you to diagnose the printer with the following two func-
tions:
 PRINT-T (printing test)
 HEX-DUMP (hex dump)
These functions are used for checking print quality and diagnosing printer problems.
Hex dump also provides useful information for programmers. There are other options
in the TESTS function, but they are restricted to the use of service personnel.
Printing Test
The printing test function prints test pages independently of your computer to check
printing operations and quality. It does not check the interface between the computer
and the printer.
The printing test prints all of the characters available in the ASCII character set. For
color printers with a color ribbon, printing occurs in four colors.
To start the printing test, make sure that continuous forms paper is loaded into the
printer. Enter the Set-Up mode, and follow these steps:
1. Start the printing test (select the PRINT-T option).
Check that the red cursor is located under PRINT-T, and then press the
 button
or the
 button. The printer selects (underlines) PRINT-T and starts printing. A
short help menu is printed at the top of the page. Note that the printer is not ready
for the computer during this printing test.
2. Exit the printing test.
Exit the printing test in either of the following ways after printing a dozen lines:
To exit the printing test and return to the <TESTS> menu, press the  button or
the
 button.
To exit the printing test and return to the <FUNCTIONS> menu, press the Exit/
Save button.
To exit the printing test and return to the Normal mode (Ready), press the Set-
Up/Quit button. The printer temporarily saves any changes made while in the
Set-Up mode and then returns to the Ready state.
3. Examine the test page.