Environmental, Safety approvals, Ce marking – Pioneer Impact Printer DFX-8500 User Manual

Page 4: Parallel interface specifications, Forward channel, Reverse channel, Serial interface specifications

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EPSON DFX-8500

4 -

EPSON DFX-8500

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Environmental

Temperature:

Operation:

5°C to 35°C (41°F to 95°F)

Storage:

30°C to 60°C (

22°F to 140°F)

Humidity:

Operation:

10% to 80% RH without condensation

Storage:

5% to 85% RH without condensation

Safety approvals

120 V model:

Safety
standards:

UL1950 with D3
CSA C22.2 No. 950 with D3

EMI:

FCC part 15 subpart B class B
CSA C108.8 class B

230 V model:

Safety
standards:

EN 60950 (VDE, NEMKO)

EMI:

EN 55022 (CISPR pub. 22) class B
AS/NZS 3548 class B

Acoustic noise:

Approx. 58 dB (A) (ISO 7779 pattern)

CE marking

230 V model:

Low Voltage Directive 73/23/EEC: EN60950

EMC Directive 89/336/EEC:

EN55022 class B
EN61000-3-2
EN61000-3-3
EN50082-1
IEC801-2
IEC801-3
IEC801-4

Parallel Interface Specifications

The printer comes with a bidirectional, 8-bit, parallel interface
and a Type-B optional interface slot.

Forward channel

Transmission mode:

8-bit parallel, IEEE-1284 compatibility

mode

Adaptable connector: 57-30360 (Amphenol) or equivalent

Synchronization:

STROBE

pulse

Handshaking:

BUSY and

ACKNLG

signals

Signal level:

TTL compatible (IEEE-1284 level 1

device)

Reverse channel

Transmission mode:

IEEE-1284 nibble mode

Adaptable connector: 57-30360 (Amphenol) or equivalent

Synchronization:

Refer to the IEEE-1284 specification

Handshaking:

Refer to the IEEE-1284 specification

Signal level:

IEEE-1284 level 1 device

Data transmission
timing:

Refer to the IEEE-1284 specification

Extensibility request: The printer responds to the extensibil-

ity request in the affirmative when the
request is 00H or 04H, which means:

00H:

Request nibble mode of reverse channel
transfer

04H:

Request device ID in nibble mode of
reverse channel transfer

Serial Interface Specifications

The DFX-8500 built-in serial interface is an RS-232C
asynchronous interface with the following characteristics.

Data format:

1 start bit
Data word length: 8 bits
Odd, even, no parity, or ignore
1 or more stop bit

Signal level:

Mark logical “1” (

3 V to

25 V)

Space logical “0” (+3 V to +25 V)

Handshaking:

Handshaking by DTR signal or Xon/Xoff

Bit rate:

2400, 4800, 9600, 19200 bps

Connector plug:

EIA 25-pin connector

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