Condition Possible causes Possible solutions Where to go for more
information
electronics or missing dot on
printhead.
One side of receipt is missing. This indicates a serious
condition with the printer
electronics.
Stop using the printer. Contact your authorized HP
service representative.
NOTE: Using nonrecommended paper may damage the printhead and void the warranty.
Printer does not function
Condition Possible causes Possible solutions Where to go for more
information
Printer does not function when
turned on and LED is o.
Power is not plugged in. Check that the host or power
supply is getting power.
Printer does not function when
turned on and LED is blinking.
Receipt cover is not fully
closed.
Close and latch the receipt
cover.
Printer stops functioning. Printhead has overheated. Allow the printhead to cool
down.
Printer is in energy-saving
mode.
Press the paper feed button to
revive the printer.
Printer does not open. Receipt cover is stuck. Release the latch failsafe. See Latch failsafe on page 69.
68 Chapter 5 Using the column printer
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