Print unit activation by means of a clock unit

1. A printing method, comprising:

advancing, using a media advance unit, a media to be printed towards a printing unit of a printing device;

detecting a position of the media relative to the printing unit, and providing a corresponding position sensor signal;

activating, by a controller, the printing unit to print on a portion of the media, a timing of the activating being according to the position sensor signal and a timing signal provided by a clock unit; and

resetting the controller in response to the position sensor signal.

2. The method of claim 1 , wherein the timing signal is an open-loop timing signal.

3. The method of claim 1 , wherein the timing signal is independent of feedback from the media advance unit.

4. The method of claim 1 , wherein the timing of the activating of the printing unit is further in accordance with a speed at which the media advance unit advances the media towards the printing unit.

5. The method of claim 1 , further comprising:

resetting a data pipeline stream for printing on the media in accordance with the position sensor signal.

6. The method of claim 1 , wherein the media is advanced towards the printing unit on a plurality of pallets which move on a track.

7. The method of claim 6 , wherein the track is an endless track.

8. The method of claim 1 , wherein the detecting of the position of the media uses a sensor that outputs the position sensor signal.

9. The method of claim 1 , wherein the activating comprises activating a printhead of the printing unit that is synchronized with a position of the media, without receiving feedback from the media advance unit.

10. A printing device, comprising:

a printing unit comprising a printhead to print on a media;

a moveable support to advance the media towards the printing unit;

a sensor to detect a position of the media relative to the printing unit, and to provide a corresponding position sensor signal;

a clock to provide a timing signal, wherein the clock is a free-running clock; and

a controller to activate the printhead to print on a portion of the media, a timing of the activating being according to the position sensor signal and the timing signal.

11. The printing device of claim 10 , wherein the clock is uncoupled from a media advance unit comprising the moveable support.

12. The printing device of claim 10 , wherein the clock comprises an oscillating crystal.

13. The printing device of claim 10 , wherein the moveable support comprises a plurality of pallets for supporting the media to be printed.

14. The printing device of claim 13 , further comprising a track on which the pallets move.

15. The printing device of claim 13 , further comprising a linear motor to move the pallets.

16. The printing device of claim 13 , further comprising a plurality of static magnetic elements and a plurality of coils coupled to the pallets.

17. A non-transitory computer-readable medium storing instructions which, when executed cause a computing device to:

detect, based on a position sensor signal from a sensor, a position of a media relative to a printing unit, the media advanced by a media advance unit; and

activate the printing unit to print on a portion of the media, a timing of the activating being according to the position sensor signal and a timing signal provided by a clock unit, wherein the activating comprises activating a printhead of the printing unit that is synchronized with a position of the media, without receiving feedback from the media advance unit.