Epson DFX-5000+ Service Manual page 89

During printing, printer software monitors the following items:
1. The time between the last 40 encoder pulses and the stopping point.
2. The number of encoder pulses from the established speed to the stopping point.
3. The number of encoder pulses until the carriage speed reaches SP2. (See Figure
2-24, Acceleration Control Curve, for SP2.)
The printer saves the values for each ofthe items listed above and uses it for
every column. This procedure compensates for individual variations in the printer
mechanism. Therefore, carriage operation control for column n is determined by
the data in column n-l.
Figure 2-26 illustrates the measurement sequence
EPSON DFX-5000+ Service Manual
Figure 2-26. Measurement Sequence
Operating Principles
2-37