Epson EPL-5500, Service Manual

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1.3 INTERFACE SPECIFICATIONS
The EPL-5500 is equipped with the following external interfaces:
❏
Parallel interface
❏
Optional LocalTalk/serial interface
❏
Optional Type B interface with Type-B EX box
1.3.1 Parallel Interface
The parallel interface has the following two modes:
❏
Compatibility mode (same as parallel interface for EPSON’s current page printer)
❏
Reverse mode
1.3.1.1 Parallel Interface Compatibility Mode
System: STROBE synchronization, 8-bit parallel data transfer
Handshaking: BUSY and ACKNLG signals
Connector type: P90-25027-1 (Amphenol) receptacle
Applicable plug: 57-30360 (Amphenol or equivalent)
Transfer speed: Approximately 400,000 bytes/second (max.)
Signal timing: See Figure 1-3.
Signal description: See Table 1-8.
DATA 1-8
STR OBE
B U S Y
AC KN LG
VALID VALID
0.5 µ s
(minimum) 0.5 µ s
(minimum)
0.5 µ s (minimum)
0.5 µ s (maximum)
1 or 10 µ s
(typical)
0 s
(min.)
0.5 or 5 µ s
(minimum)
Figure 1-3. Compatibility Mode Signal Timing
EPL-5500 Service Manual General Description
Rev. B 1-9