User`s manual

7–88 Digital Emulation
Printer Status Requests and Reports
The host computer can send Device Status Requests (DSRs) to the printer,
which will then respond with status reports about its operational condition.
The printer will send brief or extended and solicited or unsolicited reports to
the host. Unsolicited status reports are sent only when an error occurs and
only when unsolicited status reports are specifically enabled. Unsolicited
status reports are sent after the current page prints, and list each error type
once.
Printer default is unsolicited reports disabled.
Device Status Requests (DSRs) and Printer Responses
The host computer sends the DSR sequences listed below to request status
reports and to enable or disable unsolicited status reports.
Table 7–1. DSR Sequences
Request Sequence
Printer Response
CSI n or CSI 0 n Send an extended status report
CSI 6 n Send a cursor position report
CSI ? 1 n Disable all unsolicited status reports from printer
CSI ? 2 n Enable brief, unsolicited status reports and send an
extended status report
CSI ? 3 n Enable extended, unsolicited status reports and
send an extended status report
NOTE: Unsolicited status reports, when enabled, are sent when any
reportable status or error condition occurs. (Unsolicited reports are
initially disabled.)
Printer responses to these commands are discussed on the following pages.