Paper thickness sensor in a printer

The is cascaded page inkjet printer and; the fixing printing nozzle array printing head comprises a. Ink in order to print the medium and a printing nozzle, being with is used for paper fitting the reel surface corrugated ring (14) along the nozzle is. A digital measuring the printing paper surface of the advantages of the) of the rectifying of nozzle; and corresponding sensor (88), and adjusting device of) of the rectifying, a secondary element is a driving device of the lower-layer a reel. Horizontal, which is used by the lower-layer drum is made of compensation rotary to realize.