Interface Specifications; Parallel Interface Specifications; Figure 1-7. Data Transmission Timing - Epson LX-300 Service Manual

LX-3(3O Service Manual

1.3 INTERFACE SPECIFICATIONS

has parallel interface and serial interface, one of which can be selected in default setting
LX-300
mode. Auto selection is also available.

1.3.1 Parallel Interface Specifications

is equipped with an 8-bit parallel interface, standard.
The LX-300
Data format:
Synchronization:
Handshaking:
Signal level:
Adaptable comectm
Data transmission timing:
BUSY
DATA
S T R O B E

Figure 1-7. Data Transmission Timing

Note:
Transition time (rise time and fall time) of every input signal must be less than 0.2 M.
The Busy signal is active (HIGH) under the following conditions:
- During data reception (See Figure 1-7.)
- When the innt buffer is full
- When the INIT input signal is active
- During initialization
- When the ERROR signal is active
- During the self-test mode
- During the default-setting mode
The ERROR signal is active (LOW) under the following conditions:
- When a paper-out error occurs
- When a release lever operation error occurs
- When a fatal error occurs
The PE signal is active (HIGH) under the following conditions:
- When a paper-out error occurs
Rev. A
8-bit parallel
By SIROBE pulse
By BUSY and ACKNLG signals
%-pm 57-30360 (Amphenol) or equivalent
See Figure 1-7.
— —
—
0.5 ps (minimum)
0.5 ps
(minimum)
0.5 IIS
(minimum)
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