The figure below shows the timing chart for negotiation.
Figure 1-5. Timing Chart for Negotiation
1
The signal is set to HIGH when no data is being sent.
The signal is set to LOW during sending of data.
2. The signal is set to HIGH, if the extension request value was 04h
3. HB DA: Host Busy Data Available
HB DNA: Host Busy Data Not Available
The figure below shows the timing chart for data transfer.
Figure 1-6. Timing Chart for Data Transfer
Notes:
1. This signal set to HIGH when no data is being sent
This signal set to LOW during sending of data.
2.
This signal set to HIGH, if the extension request value was 04h.
3. HB DA: Host Busy Data Available
HB DNA: Host Busy Data Not Available
EPSON ActionLaser 1600 Service Manual
Printer Features
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