Diagnostic Aids - Lexmark 2380 - Forms Printer B/W Dot-matrix Service Manual

3. Diagnostic Aids

The printer contains self tests to help find and solve problems. You
need not connect the printer to a computer or terminal to run these
tests.
Types of self tests are as follows:
•
Power-On Self Test (POST)
•
Print Test
•
Hex Dump Mode (a computer or terminal is needed)
•
Serial Interface Adapter Print Test
The following are special machine modes that run when the printer
is turned off and then back on:
Turn the printer on while
Pressing:
Line Feed
Alt
Micro & Micro
Alt + Tear Off (with
printhead at extreme left)
Alt + Setup (with printhead
at extreme left)
Alt + Macro
(23XX-002, 003)
Does This:
Print test with sample fonts.
Sets printer in Hex Dump mode.
Disables/Enables Operator Panel
Lockout Mode.
Resets to World Trade default paper
sizes.
Resets to US default paper sizes.
Head Gap Sensor Test: Macro LEDs
indicate sensor position.
Diagnostic Aids 3-1