Timing - Lexmark FORMS 249X Technical Reference

Pin
31
32
33
34-35
36
* Inverted logic (signal is active when low).

Timing

The following chart shows the timing in microseconds of these signals.
Line Description
INIT* INIT* from the system resets the printer to its initial power-
on-state. The BUSY line goes high, and any received data is
printed. When INIT* goes low, the printer resets to the power-
on default state. If data is in the USB buffer, the USB FIFO is
not reset.
ERROR* The printer sets the ERROR* line low if the printer detects an
error or out-of-paper condition.
A critical error condition exists when both ERROR* and PE
are low.
GND Ground level.
Not used.
SELECT IN The printer does not respond to the DC1/DC3 code when this
valid only in Epson mode
signal, , is low.
Section 6: Using the Printer Interface
95