| Revision A |
MP Cassette Size Sensor
The paper size for the MP cassette is detected by the rear paper guide. The paper size detection mechanism consists of the arm that joins with the rear paper guide and four mechanical switches in the printer body. When the rear paper guide is aligned with the paper size, the arm swivel accordingly, as shown below. The arm has a notch, which moves as the arm swivels to turn on/off the four mechanical switches. The paper size is determined according to the switches’ on/off conditions.
Figure 2-9. Paper Size Detection Mechanism
A4 / Letter Detection
The MP Cassette has the A4 / Letter detection mechanism. The mechanism consists of the right paper edge guide, the arm that engages/disengages with the right paper edge guide, and one mechanical switch that is installed in the printer main body. When the right and left paper guides are aligned with Letter size paper set in the cassette, the arm turns around. This motion switches the mechanical switch and Letter size paper is detected.
Figure 2-10. A4 / Letter Detection Mechanism
Operating Principles | Printer Mechanism Operating Principles | 59 |
