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Printing Problems
Nothing can be printed with ERROR LED flashing
– Most possible
cause for the flashing Error LED is that the printer has been printing for
quite a period of time and the temperature of print head becomes too high.
After few minutes under normal ventilation, the print head should be able
to cool down and the Error LED will stop flashing. Printing will resume
after the print head cools down. If this is not the case, contact a qualified
service person.
Nothing can be printed with ERROR LED ON
– Check the Paper Out
LED. If it is ON, most probably either the paper roll is not installed or the
paper roll is at or near the end. Install a new paper roll. If the Paper Out
LED is OFF, please check if the print hood is properly closed. There are 2
internal check points inside the printer to assure the locking of the hood
for a decent printing. Therefore any dislocation of the hood may cause an
error status and inhibition of printing.
Press down the hood in the
middle of the opening
when closing it till it audibly clicks into place. If
both situations are not the cause, please try to pull the hood lock forward.
If the top hood does not release automatically,
check for paper jam
described below.
If there is no paper jam and the print head is not overheated, power off the
printer and wait for half a minute and then power it back on. If the
problem still remains, contact a qualified service person.
Nothing can be printed with ERROR LED OFF
– Try to run self-test
according to previous chapter to check if the printer itself works properly.
If the self-test passes, check the following:
1).
Check the connection of the interface cable between the printer and
the computer. Also make sure that this cable meets the specification
required for both the printer and the computer.
2).
Check the printer data communication settings. The printer settings
can be found easily on the self-test printout.
If the problem remains or the self-test fails, contact your dealer or a
qualified service person.
Poor printing quality
– Contaminants like paper scraps and dusts on the
thermal print head can lower the print quality drastically. Clean the print
head as described in the previous section. Also print density should be
regulated thru switch settings.
