PTD55 SERIES OPERATION MANUAL
5.2 - CUTTING POSITION
SELF-ADJUSTING
The PTD55 has a self-adjusting, whereby the parameter
mLmH
is estimated practically.
To perform the self-adjusting follow these steps:
1º ) Turn the printer off and the head lever down.
2º ) Keeping the PFEED button pressed, turn the printer on and lift the head lever.
Immediately the PTD55 will issue 4 tickets and will make a cut. From here, each time the PFEED button
is pressed a ticket is issued and cut with the parameters calculated.
If the final result of self-adjusting is not satisfactory, the developer must fit the parameter
mLmH
by
sending the command
GS ( G nL nH mL mH
(see above)
.
NOT
E
S
:
- After sending the
GS ( G
command (or by self-adjusting), the parameters are stored in non-
volatile memory.
- When pressing the paper feed button the printer will feed paper to the next cutting line according
to the parameters set with the
GS ( G
command.
- When sending any cut command to the printer will do the same as above.
- When sending a
GS FF
command to the printer it will feed paper to the next cutting line.
- If the printer detects that paper has been fed for a distance larger that the ticket length without
having cut the paper, it will pop a black mark error.
- The first ticket should be discarded since the printer cannot estimate the distance to the next
cutting line until it has detect at least one black mark.
5.3 - LOADING PAPER
5.3.1 - Automatic paper loading
1. Make sure the PTD55 is power supplied.
2. Remove any rest of paper if there is any.
3. Make sure that the platen is closed.
4. Make sure the paper end is cut in a straight way.
5. Thread the paper roll with the right orientation as shown in the next figure. The thermal
paper has only one printing side (thermal side). If there are doubt about which one is the
printing side, just scratch the paper and the thermal side will show up the track on.
6. Once the printer has detected the paper, it will automatically start the paper load sequence
which consist of feeding few millimeters of paper at a very low speed.
Note: running at low speed, the motor will be noisier.
5.3.2 - Manual paper loading
1. Open the printing head by pulling the lever and remove the paper (if there is any). Keep
the printing head open.
2. Place the paper roll in the right direction.
3. Put the paper end in the mechanism inlet. Push the paper in until it reaches the
mechanism outlet.
4. Close the printer head.
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