Citizen Systems iDP-3550 - Manual (Page 31)

Dump Mode When the power is turned on while the LF and SEL switches are pressed, the
printer enters dump mode and prints the following message.
“=== Hexadecimal Dump ===”
The message "Clear Data
in Buffer" is printed in
enlarged red characters.
Then, 5 lines are rapidly
fed.
SEL SW ?
Buffer Data
Power-on
YES
NO
SEL SW ?
1 sec. passed
The input buffer is cleared and
the message “Cleared Input
Buffer” is printed. Then, 5
lines are rapidly fed.
SEL/ERROR lamp lights up.
YES
NO
OFF
ON
Buffer Data
NO
The message "Power Down (Data
in Buffer)" is printed in red,
followed by the contents of the
buffer. After printing, SEL/
ERROR lamp lights up.
Waits for data input
OFF
ON
•SEL/ERROR lamp blinks at
intervals of 0.25 sec.
•Buzzer sounds for 1 sec.
YES