Epson ActionLaser II Printer Troubleshooting Guide Page 3

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ActionLaser II
Electrical
Serial interface (RS-232C)
Rated voltage:
120 VAC
Data format
Word length: 7 or 8 bits
Parity: none, odd or even
Stop bits: 1 or 2
Printer ready protocol: enabled (DTR and
XON/XOFF protocol set to ON.)
The data format can be set using options and
menu items in SelecType.
Rated current:
7A
Rated frequency range:
50 Hz to 60 Hz
Power consumption:
Less than 600 W
Dielectric strength (between AC line and chassis):
Can withstand 1250 VAC rms for 1 minute.
Controller hardware
CPU:
68000, 16.66 MHz (CPU clock 14.1312 MHz)
RAM: Standard 0.5 MB (expandable up to 5.5MB)
Environmental
Temperature:
0 to 30°C (32 to 80°F)
Humidity:
20% to 80% RH
80%
54%
20%
Print assured area
I
10-C 27-C 32°C
(5o’F)
wFl
(SOT)
Atmosphericpressure: No less than 740 millibar (about the same as
atmospheric pressure at a 2500 m or 8200 ft
altitude)
Operating Angle: Should be kept level.
Interface Specifications
Interface timing
The figure below shows the timing for the parallel interface.
0.5~s
min.
0.5~s
min.
yr
ACKNLG
Varies depending on the SelecType setting.
OJJS
typ,
5JJs
typ,
lops
typ, or ACKNLG
Signal is not changed.
Note that it is possible to change the timing between ACKNLG and
BUSY.
Signal level:
TTL compatible
Baud rate
300, 600, 1200, 2400, 4800, 9600, 19200 bits per
second.
Signal level
Connector
Handshaking
RS-232C: Conforms to ELA
D-sub 25pin connector
The printer’s serial interface can use DTR (Data Terminal Ready)
signal levels and XON/XOFF communication protocols either
separately or in combination.
XON/XOFF protocol
When the vacant area for data in the input buffer drops to 128 bytes,
the printer outputs an XOFF code, indicating that the printer cannot
receive more data. Once the vacant area for data in the buffer
recovers to 256 bytes, the printer outputs an XON code, indicating
that the printer is again ready to receive data.
XON/XOFF protocol can be enabled using SelecType. The factory
setting is “ENABLE.”
DTR/DSR protocol
When the printer can receive the data, the printer sets the DTR signal
level to high (SPACE). When the printer cannot receive data, the
printer sets the DTR signal level to low (MARK). If the DTR menu in
SelecType is set to off, the DTR signal is always treated as high
(SPACE.) The printer sends the TXD (transmitted data) only when
the DSR signal level is set to high (SPACE) except the DSR menu in
SelecType is set to off. If the DSR menu in SelecType is set to off, the
DSR signal is always treated as high (SPACE)
DTR/DSR protocol can be enabled using SelecType. The factory
settings are DTR “ON” and DSR “OFF.”
Error handling
A * character is printed if a parity error, framing error, or over-run
error is detected.
Options
Multi-media feeder
Electrical
AC power supply: DC 24 V supplied by the printer
Insulation resistance:
10 Mohm minimum
Dielectric strength (between AC line and chassis):
Can withstand 1250 VAC rms for one minute.
Laser Printers
9/17/91
ALll-3
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