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Epson 4500 User Manual

Page 247

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Interface Specifications

Printing Enabled/Disabled Signals and Control Conditions

The table below shows the relationship between printing being enabled

or disabled, the on line/off line status, and the receipt of the data
on/off control characters, DC1 or DC3.

off line

High/Low DC1/DC3 Low

High

Not

Disabled

(no effect) (no effect)

generated

*While printing is disabled, character data is being received and acknowledged so

that the printer can look for another DC1 character, which would allow it to resume

printing.

Technical Specifications

8-11