How to Operate the ITherm
®
280 iTherm
®
280 Programmer’s Guide
Page 56 Rev C 28-07764
Indicator Lights (LED)
The three iTherm
®
280 indicator lights are:
• Power LED Indicates printer activity and non-recoverable errors
• Error LED Indicates problems and probability of recovery
• Paper LED Indicates paper status (paper low)
Power Indicator (LED)
The power indicator lets the user know that the printer is ON. If the POWER indicator
blinks in conjunction with the ERROR indicator, the printer is experiencing a non-
recoverable error: see the fault indicators discussed below. If the POWER indicator blinks
and there is no error indicator blinking, the printer is being held in reset by the host.
Error Indicator (LED)
The ERROR indicator lets the user know that the printer is experiencing a problem. If the
POWER indicator is lit (not blinking), the error is generally recoverable without data loss.
If the POWER indicator is blinking, a non-recoverable error has occurred: see the fault
indicators below. If the error is not operator recoverable, a power cycle may correct the
problem. If a power cycle does not correct the fault, the printer must be serviced.
Paper Indicator (LED)
The PAPER indicator signals the paper status. If the printer is equipped with a paper low
option, the PAPER indicator will blink when the paper is low. The low sensor is adjustable,
and the amount of paper remaining is dependent on the adjustment. If the PAPER
indicator is lit with the error indicator, the printer is out of paper: in this case, the printer
stops printing and waits for the paper to be changed.
Fault Indicators
The ERROR indicator is the primary fault indicator, and is either always on or blinking if a
fault has occurred. There are three types of faults:
Fully-recoverable faults Paper out or cover open
Semi-recoverable faults Head jam
Non-recoverable faults Component failure
