Epson 7000 사용자 설명서

The EPSON Stylus Pro 7000 feeds roll paper and cut-sheet paper using 
friction, and the two sensors along the paper feed path provide all necessary 
information for controlling the paper feed process. The sensors are the P-Rear 
sensor located on the right near the top of the paper feed path and the P-Front 
sensor located on the right under the carriage path. See Figure 2-12, "Paper 
Feed Sensors" on page 64. Another important point to remember about the 
paper-feed mechanism is the paper suction fans.

The paper suction fans are located behind the lower paper guide and are 
necessary to keep the roll paper flat against the lower paper guide, which 
prevents ink smears. The fans create a vacuum through the holes in the lower 
paper guide, pulling the paper flat against the guide. The strength of the 
vacuum is adjusted according to the media type setting.