User's Manual

5.4 Printer Failures
A user cannot generally resolve a problem involving defective printer hardware. Power off and
on again the printer to recover any fatal error. If the problem cannot be resolved, contact your
dealer or service partner.
5.5 Error Indications on LEDs
Error Description
Operation
Status
Paper
Out
LED
Online
LED
Tear Off
LED
Buzzer Sound
EEPROM Off Off Off flashing None
Printhead temperature is too low flashing Off Off flashing None
Carriage initial position Off Off flashing flashing continuous
Raster reading trouble Off Off flashing flashing continuous
Front feed Sensor trouble Off Off On flashing None
Paper width trouble Off Off On On Once
Paper jam flashing No change No change On Once
Printhead too hot flashing flashing No change flashing None
Paper path switching trouble flashing No change No change flashing continuous
Paper end rear Sensor trouble Off Off On Off None
Printhead temperature is too low flashing Off Off flashing None
Carriage initial position Off Off flashing flashing continuous
5.6 Diagnostic Functions
The printer diagnostic functions are Self-Test page, hex-dump mode and print alignment
adjustment.
• Self-Test page: Tells you whether the printer hardware is functioning correctly. If the
printer hardware is functional, any problems you are having are probably caused by
incorrect printer settings, incorrect software settings, the interface, or the computer.
• HEX-DUMP MODE: Allows you to determine whether the computer is sending the
correct commands to the printer, and whether the printer is executing the commands
correctly. This function is useful to programmers or others who understand how to
interpret hex dumps.
• PRINTING ALIGNMENT ADJUSTMENT: Allows you to check and, if necessary, correct
the printer’s vertical line print alignment in bi-directional mode.