User`s guide

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The printer communicates its status to the host through either brief

(an error has or has not occurred) or extended (includes an error

code detail) reports. The host may disable reports (see “Device Sta-

tus Request (DSR)” on page 2-3“Device Status Request (DSR)” on

page 3-3).

Brief reports inform the host that an error condition has been detected

or that no error has been detected. If no error was detected, the brief

report sequence is

<ESC>[0n

If an error was detected, the brief report sequence is

<ESC>[3n

Extended reports include the brief report but follow it with an error

code(s). If no error condition exists, an extended report sequence is

<ESC>[0n<ESC>[?20n

The sequence <ESC>[0n is the brief report for No error. The

sequence <ESC>[?20n contains the code (20) for No error.

If an error condition exists, the extended report has this structure:

<ESC>[3n<ESC>[?

generic code

;

specific code

... n

»Note:

When unsolicited status reports are enabled, each error is

reported only once per page.

The sequence <ESC>[3n is the brief report for Error detected. The

extended report contains a pair (or more) of generic and specific error

codes that define the detected error(s). These codes are listed in the

following table.