To accurately match the optimal nozzle type for the M-1908 printer, ensure the quality, efficiency of print output, and stable operation of the equipment, a multi-stage printing test on various nozzle models was specially conducted. This test took nozzles of different models and assembly specifications as the test objects, and collected key performance data through three core printing modes: 1pass (single-pass printing), 2pass (double-pass printing), and 4pass (four-pass printing), so as to provide a scientific basis for the nozzle selection of the M-1908 printer.

First, the compatibility test of the basic nozzle was carried out. As a general-purpose core component, this nozzle is the basic compatibility option for the M-1908 printer. During the test, in the 1pass printing mode, its performance data was 60, which reflects the ink output uniformity and printing accuracy of the nozzle in the single-pass printing scenario; after switching to the 2pass printing mode, the data dropped to 55, indicating the coordinated stability of the nozzle during double-pass overlapping printing; in the 4pass high-precision printing mode, the data further dropped to 40, intuitively showing the continuous working capacity and performance attenuation control level of the nozzle in the multi-pass printing scenario. The overall test results provide a benchmark reference for nozzle compatibility in basic scenarios.

Subsequently, a special test was conducted on the E1000 model nozzle (4pcs assembly specification, i.e., integrated assembly of 4 in a group). This model nozzle is mainly suitable for high-efficiency printing scenarios. In the 1pass high-speed printing mode, its test data reached 75, which is significantly higher than that of the basic nozzle, indicating that it has better ink output stability and printing efficiency during single-pass high-speed printing; after entering the 2pass printing mode, the data dropped to 50. Although it decreased compared with 1pass, it can still meet the medium and high-precision printing requirements; in the 4pass high-precision printing scenario, the data was 30, indicating that this model nozzle is more suitable for medium and low-precision high-speed printing scenarios and has a high degree of compatibility with the high-efficiency printing positioning of the M-1908 printer.

For the i3200-U1 model nozzle, two assembly specifications of 2pcs (2 in a group) and 4pcs were tested respectively to verify the impact of different assembly methods on the compatibility effect of the M-1908 printer. Among them, the i3200-U1 nozzle with 2pcs assembly specification had a test data of 65 in 1pass printing mode, balancing printing efficiency and basic quality; the data in 2pass printing mode was 46, maintaining good performance stability while improving precision; the data in 4pass printing mode was 36, showing certain high-precision printing compatibility potential, suitable for scenarios with medium requirements on printing quality. However, the test data of the i3200-U1 nozzle with 4pcs assembly specification showed obvious differences: the data in 1pass printing mode was only 24, and the data in 2pass and 4pass were 20 and 18 respectively. The low data indicates that the compatibility between the i3200-U1 nozzle of this assembly specification and the drive system of the M-1908 printer is weak, and there is room for optimization in ink output control and printing coordination.

Finally, the compatibility test of the F1080 model nozzle (4pcs assembly specification) was completed. This model nozzle focuses on low-cost general-purpose scenarios. The test data showed that its 1pass printing data was 24, 2pass printing data was 20, and 4pass printing data was 15, with an overall low data level. Combined with the observation during the test, the nozzle performed generally in terms of printing clarity and ink output continuity. Although it can meet basic printing needs, its compatibility with the stable output target pursued by the M-1908 printer is low, and it is more suitable for simple printing scenarios with low requirements on printing quality.

Through multi-dimensional data collection and analysis, this test comprehensively grasped the compatibility characteristics of various nozzle models with the M-1908 printer, provided an accurate basis for nozzle selection in different usage scenarios, and laid a foundation for the subsequent optimization of nozzle compatibility and the improvement of equipment performance.