噴墨成型技術常見的有材料噴塗成型技術以及黏著劑噴塗成型技術，使用壓電噴頭噴墨具有精準度高、噴印頻率高、材料相容性高等優點，然而在噴印過程中，常常可能噴孔堵塞等問題，使得噴印不順，導致噴印成品上產生缺陷。
本研究主要目的為基於材料噴塗成型技術，提出可改善墨滴堆疊、加速成型速度、補償缺陷的方法。首先，先確定適用於本研究的最佳滾輪轉速；再來，建立來回噴印模式並與標準列印模式比較其疊層表面品質、列印成品尺寸、表面粗糙度；最後，利用補償列印方法，補平列印上的缺陷。
經本研究實驗得知，使用滾輪轉速695 rpm於本系統可得到最小表面粗糙度；來回噴印模式雖然可較標準列印模式節省約38%列印時間，但在Y方向的尺寸精度較差，且表面粗糙度也較標準列印模式大；補償列印方法可有效填平列印上的缺陷，但須多耗費時間在列印前使用雷射變位計離線掃描噴孔堵塞位置以及進行補償列印。使用者可自行依照使用情境或成品需求來選擇是否使用來回列印模式或補償方法。

Inkjet technology is commonly used in material jetting and binder jetting technology. The use of piezoelectric print head has advantages of high precision, high printing frequency and high material compatibility. However, during the printing process, there are some drawbacks such as clogged or partially blocked nozzles, which will result in printing defects.
The main purpose of this study is to improve the stacking of ink droplets, accelerate the printing speed, and compensate for defects based on material jetting technology. The first step is to determine the optimal roller speed for this study. Then, this study creates a back-and-forth printing mode and compares the surface quality, printing size, and surface roughness with the standard printing mode. Finally, offset printing method is used to fill in defects on a printed layer.
According to the experiment results, a minimum surface roughness is obtained by using a roller speed of 695 rpm in this system. While the back-and-forth printing mode can save about 38% of the printing time compared with the standard printing mode. However, the dimensional accuracy in the Y direction is poor, and the surface roughness is also larger than the standard printing mode. The compensation printing method can effectively fill the defects on the printed layer, but it takes time to use laser displacement sensor to scan the position of clogged nozzles before printing process offline and compensatory printing. The user can choose to whether use the back-and-forth printing mode or compensation method or not according to the usage situation or the product requirement.

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