Troubleshooting the printer
The printer is generally trouble-free; however, unexpected conditions may arise. Refer to the following
sections to diagnose and solve these printer conditions. To resolve complex issues, you may need to contact
an authorized HP service representative.
Printer tone and green light
Condition
Possible causes
Possible solutions
Where to go for more
information
Green light, quick steady
flashing.
Paper roll is empty.
Load a new paper roll.
Receipt cover is open.
Close the cover. If the problem
persists, continue opening and
closing the cover until the light
stops blinking.
The knife is unable to return to
the home position.
Stop using the printer.
Contact your authorized HP
service representative.
Green light, slow steady
flashing.
Other problems may be
indicated.
Stop using the printer.
Contact your authorized HP
service representative.
Printer beeps (two-tone—low
frequency, high frequency).
Printer has been turned on and
is ready to operate.
No action is required.
Printer beeps and the green
light flashes in various
combinations.
These all indicate a serious
condition.
Stop using the printer.
Contact your authorized HP
service representative.
Printing issues
Condition
Possible causes
Possible solutions
Where to go for more
information
Colored stripe on the receipt.
Paper is low.
Change the paper.
Receipt does not come out all
the way.
Paper is jammed.
Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Printer starts to print, but stops
while the receipt is being
printed.
Paper is jammed.
Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Receipt is not cut.
Paper is jammed.
Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Print is light or spotty.
Paper roll is loaded incorrectly.
Reload the paper correctly.
Thermal printhead is dirty.
Use recommended thermal
receipt paper and clean the
printhead with 99% isopropyl
alcohol.
Troubleshooting the printer
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