Printer Does Not Function - CognitiveTPG A798 User Manual

28 Chapter 4: Using the Printer

Printer does not function

Condition
Printer does not function
when turned on
Printer stops functioning
Interruption of data
Printer goes o -line
(red LED on USB connector connected properly
is on or o )
A798 Thermal Receipt Printer: User Guide A798 Thermal Receipt Printer: User Guide
Possible Causes
Printer not plugged in
Receipt cover not
fully closed
Printhead has overheated
Interrupted data signal
over USB connection
Faulty USB port
RS-232C mode not
working
USB cable is not
What to Do
Check that printer cables
are properly connected
on both ends
Check that the host
or power supply is
getting power
Close and latch the
receipt cover
Allow the printhead to
cool down
Ensure the standard USB
cable is no more than 5
meters long, with no
extensions; eliminate hubs
Plug cable into another USB
port on host computer
Printer had previously
been connected to
USB host
If printer doesn't
auto-recover after 5–20
seconds, reconnect the
USB cable, reset the
printer, and reboot the
host computer; check that
USB cable are properly
connected on both ends
A798-UG00001 Rev. A A798-UG00001 Rev. A
Where to Go
Chapter 3: Setting up the printer,
"Connect the cables" (See page 15)
Chapter 3: Setting up the printer,
"Connect the cables" (See page 15)
Chapter 4: Using the Printer,
"Preventing overheating of the
printhead" (See page 25.)
Reset printer and check normal
RS-232C faults.
Chapter 3: Setting up the Printer,
"Connect the cables" (See page 19)
10/07 10/07