Figure 1-5. Negotiation Timing Chart; Figure 1-6. Data Transfer Timing Chart - Epson EPL-N1200 Service Manual

General Description
Figure 1-5 shows the timing chart for negotiation.
Note 1: The signal is set to HIGH when not sending data.
The signal is set to LOW when sending data.
Note 2: The signal is set to HIGH, if extension request value was 04h.
Note 3: HB DA: Host Busy Data Available
HB DNA: Host Busy Data Not Available
Figure 1-6 shows the timing chart for data transfer.
Note 1: The signal is set to HIGH when not sending data.
The signal is set to LOW when sending data.
Note 2: The signal is set to HIGH, if extension request value was 04h.
Note 3: HB DA: Host Busy Data Available
HB DNA: Host Busy Data Not Available
1-16

Figure 1-5. Negotiation Timing Chart

Figure 1-6. Data Transfer Timing Chart

EPL-N1200 Service Manual
Rev. A