Setting and Adjusting the Media Sensor
Change the Media Sensor Being Used
[Printing] > [Sensor Type]
Calibration of Media Sensor
If problems with media detection occur, adjust the media sensor level to improve detection accuracy.
Adjusting the Media Sensor Automatically
- Load the media.
Peel off the label from the media and pass the liner under the media sensor guide.
- Push the head assembly downward until it "clicks" into place.
- From the settings screen, tap [Printing] > [Advanced] > [Sensor Adjustments] > [Auto Calibration].
- Select a sensor to be adjusted.
- When the confirmation screen appears, tap
.
Sensor adjustments start.

- When sensor adjustments are complete, tap
.
- Press the
button to go to the Offline screen.
- Press the
button to confirm that the media is fed correctly.
When adjusting [Top], press the
button to switch to Online mode, then confirm that the media is correctly adjusted to the print start position by the Label Waste Prevention function.
Adjusting the Media Sensor Manually
The media sensor sensitivity and slice level can be manually adjusted in [Printing] > [Advanced] > [Sensor Adjustments] under the following items.
- [GAP Levels]
- [GAP Slice Level]
- [GAP2 Levels]
- [GAP2 Slice Level]
- [I-Mark Levels]
- [I-Mark Slice Level]
Adjusting the Sensitivity
First, calculate the "Low" level values of the media sensors to be adjusted.
- Pass the media under the media sensor guide and load it.
To adjust [GAP Levels] or [GAP2 Levels], peel off the label from the media and pass just the liner under the media sensor guide.
When adjusting [I-Mark Levels], load the media without peeling off the labels.
- Push the head assembly downward until it "clicks" into place.
- From the settings screen, tap [Printing] > [Advanced] > [Sensor Adjustments].
- Tap the sensor to adjust ([GAP Levels]/[GAP2 Levels]/[I-Mark Levels]).
- Change the value of [Emit] until the value of "Sensor" is less than 0.5 (V).
Set the value for [Emit] as low as possible.

Initial value:
- [GAP Levels]: 124
- [GAP2 Levels]: 83
- [I-Mark Levels]: 50
- If changing the [Emit] value does not reduce the "Sensor" value below 0.5, change the [Receive] value.
Initial value:
- [GAP Levels]: 116
- [GAP2 Levels]: 101
- [I-Mark Levels]: 60
- Make a note of the values of the "Sensor".
These are the "Low" level values.
Next, calculate the "High" level values of the media sensors to be adjusted.
- Press the head lock lever backward, open the head assembly, and then load the media again.
Leave the labels on.
- Push the head assembly downward until it "clicks" into place.
- Confirm the values of the "Sensor".
If the value is 1.0 (V) or more higher than the "Low" level value that was noted in step 7, this is the "High" level value.
If the difference between the "High" level and "Low" level is less than 1.0, repeat the procedure from step 1 to adjust the [Emit] and [Receive] values until the difference exceeds 1.0.
- If the "Sensor" value is within the reference range, tap
to confirm the value.
Adjusting the Slice Level
- From the settings screen, tap [Printing] > [Advanced] > [Sensor Adjustments].
- Tap the slice level to adjust ([GAP Slice Level]/[GAP2 Slice Level]/[I-Mark Slice Level]).
- Calculate the slice level value using the following formula and set it to [Slice Level].
GAP Slice Level, GAP2 Slice Level = (High level - Low level) x 0.3 + Low level
I-Mark Slice Level = (High level - Low level) x 0.7 + Low level

Initial value: 0.0
- Tap
to confirm the value.
Setting the Sensor that Detects the End of the Media
[Printing] > [Advanced] > [Paper End] > [Sensor Type]