TTP-2410M/346M/644M
TTP-246M Plus/344M Plus
Bar Code Printer Service Manua
l
37
37
SD card is unable to
use
* SD card is damaged.
* SD card doesn’t insert correctly.
* Use the non-approved SD card
manufacturer.
* Use the supported capacity SD card.
* Insert the SD card again.
* The supported SD card spec.
- 128MB
- 256MB
- 512MB
- 1GB
- 4GB SDHC CLASS 6
* Approved SD card manufacturers; SanDisk,
Transcend
PS/2 port does not
work
* Did not turn off power prior to plug in
the PS/2 keyboard
* PS/2 keyboard is damaged.
* PS/2 keyboard doesn’t plug-in
correctly.
* There is no BAS file in the printer.
* Turn off printer power prior to plug in the PS/2
keyboard .
* Plug the PS/2 keyboard again.
* Make sure the keyboard is fine.
* Make sure if there is any BAS file downloaded
into printer.
Poor Print Quality
* Ribbon and media is loaded incorrectly
* Dust or adhesive accumulation on the
print head.
* Print density is not set properly.
* Printhead element is damaged
* Ribbon and media are incompatible.
* The printhead pressure is not set
properly
* Reload the supply.
* Clean the printhead.
* Clean the platen roller.
* Adjust the print density and print speed.
* Run printer self-test and check the print head
test pattern if there is dot missing in the pattern.
* Change proper ribbon or proper label media.
* Adjust the printhead pressure adjustment knob.
- If the left side printout is too light, please adjust
the left side pressure adjustment knob to the
higher index (higher pressure). If the pressure
adjustment knob has been adjust to index “5”
and the poor print quality is still at the left side
of the printout, please adjust the pressure
adjustment knob to index “1” and use the
Z-axis adjustment knob to fine tune the
pressure.
- If the right side printout is too light, please
adjust the right side pressure adjustment knob
to the higher index (higher pressure) to
improve the print quality.
* If the label thickness is more than 0.22 mm, the
print quality might be good enough, please
adjust the heater line adjustment screw counter
clockwise to get the best print quality.
* The release lever does not latch the printhead
properly.
LCD panel is dark and
keys are not working.
* The cable between main PCB and LCD
panel is loose.
* Check if the cable between main PCB and LCD
is secured or not.
LCD panel is dark but
the LEDs are light.
* The printer initialization is
unsuccessful.
* Turn OFF and ON the printer again.
* Initialize the printer.
LCD panel is dark and
LEDs are lit on, but
the label is feeding
forward.
* The LCD panel harness connector is
loose.
* The LCD panel harness connector is plugged
upside down.
