Control Panel - Epson Stylus Pro 5000 Service Manual

Stylus Pro 5000
Other things to keep in mind about interface selection:
The host checks whether the logic signal is low or high before


requesting data through the reverse channel.

If the parallel interface is not selected, it enters a BUSY state and the
logic signal is set low.
When the serial interface is not selected, the DTR (data terminal


ready) signal is set to MARK.

When the optional type-B interface is not selected, the off-line bit is set
to Main Status Register (MNSTS).

When the printer is initialized or returns to an idle state, the parallel
interface enters a ready condition, the serial DTR signal is set to low,
and the off-line bit of the Main Status Register (MNSTS) is reset.
The /INIT signal on the parallel interface is not active while that


interface is in Nibble or ECP Mode, or is not selected.

CONTROL PANEL

There are 4 non-locking push buttons and 8 LEDs, described in
Table 1-13.
A
C
B D
O p e r a t e
G
H
1
Figure 1-2. Control Panel
Chapter 1 Product Description
R e s e t C l e a n i n g
C o n t i n u e
3 s e c 3 s e c
E
F
2 3
E j e c t
4
1-11