EPSON Stylus Color 900

Revision C

1.3 Interface

The EPSON Stylus Color 900 is equipped with USB, bi-directional 8-bit parallel interface, serial interface and a card slot for an optional Type-B interface.

1.3.1 Parallel Interface (Forward Channel)

Transmission mode:

8 bit parallel, IEEE-1284 compatibility mode

Synchronization:

By /STROBE pulse

Handshaking:

BY BUSY and /ACKLG signal

￿Signal level:

TTL compatible level

Adaptable connector: 57-30360 (amphenol) or equivalent

The BUSY signal is set high before setting either/ERROR low or PE high, and held high until all these signals return to an inactive state.

The /ERROR signal is LOW when one of the following error has occurred:

Printer hardware error (fatal error)

Paper Out error

￿Paper Jam error Ink Out error

The PE signal is at a high level during Paper Out error.

See Figure 1-8 and Table 1-9 which show the data transmission timing.

D A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T A

 

 

 

 

 

d a t a b y

t e n

 

 

 

d a t a b y t e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t h

o ld

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-S T R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O B E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t s t b

 

 

 

 

t n

e x t

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t s

e t u

p

 

 

 

 

 

 

 

 

 

 

 

 

B U S Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t r

e

a

t b

 

u

s y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The BUSY signal is HIGH:

 

- A C K N L G

During data entry (see Data transmission timing)

 

 

 

 

 

 

 

 

 

b

u s y

 

 

 

 

 

 

 

 

t n

 

 

t r

e p l yt a c

 

 

 

k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1-8. Data Transmission Timing

When the input data buffer is full

 

 

 

 

 

 

 

 

 

 

 

While /INIT signal is at LOW level or during hardware initialization.

￿During a printer error condition (See /ERROR signal). When the parallel interface is not selected.

Product Description

Interface

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Epson SEIJ98006 manual Parallel Interface Forward Channel
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