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TTP-248M Bar Code Printer
Service Manual
2. Labels may be stuck in
side print mechanism.
gap/black mark sensor.
2. Remove the stuck label.
Carriage open
The printer carriage is open.
Please close the print
carriage.
Memory full
( FLASH / DRAM )
The space of FLASH/DRAM
is full.
Delete unused files in the
FLASH/DRAM.
No printout printing
through serial port
1. The serial port setting is
not consistent between
host and printer.
2. The serial port cable pin
configuration is not pin to
pin assignment.
1. Please reset the serial port
setting.
2. Please replace the cable
with pin to pin assignment.
On-Line indicator is
off, error indicator is
on
1. Out of paper or out of
ribbon.
2. The gap/black mark
sensor or ribbon sensor
are not calibrated.
3. The ribbon rewind spindle
paper core is not been
installed.
4. The diameter of rewind
spindle paper core is less
than 34 mm.
1. (1) Please check the feed
path of label or ribbon.
(2) Please supply a new
label roll or ribbon roll.
2. (1) Calibrate gap/black
mark sensor.
(2) Calibrate ribbon sensor.
3. Install a paper core onto
the ribbon rewind spindle.
(The diameter of the paper
core should be larger than
34 mm)
4. Please change the paper
core which diameter is
larger than 34 mm.
5.2 Calibrate Gap/Black Mark Sensor
1. Gap/Black Mark Sensor Calibration
This utility is used to calibrate the sensitivity of the gap/black mark sensor. The
gap/black mark sensor should be calibrated whenever changing the label media
or executing printer initialization.
Please follow the steps below to calibrate the gap sensor.
a. Install the ribbon and label roll as the above-mentioned procedures, and
engage the carriage release lever.
b. Switch off printer power.
c. Press PAUSE key and then switching on printer power. Release the PAUSE
“GAP/BLINE sensor calibrating….” Message is shown on the LCD display.
The printer will calibrate the gap/black mark sensor automatically.