User guide

4
Status and Error Reporting for the LA75
Plus Companion Printer
This chapter explains how the LA75 Plus Companion Printer provides status
information and handles error conditions. The topics include:
• Device Attributes Report, Section 4.1
• Secondary Device Attributes Report, Section 4.2
• Device Status Report, Section 4.3
Note
Device attribute and status reports are applicable only to the serial
interface. Reports are not sent across the parallel interface.
4.1 Device Attributes Report (DAR)
The Device Attributes Report identifies the LA75 Plus Companion Printer to
the host. During setup the user may specify that the printer identify itself as a
generic level 2 printer or as a previous model Digital printer. See DAR in the
Command Dictionary for more information.
When the Printer ID setup feature is set to conformance level 2, the generic
DAR response is returned. The generic DAR response always begins with
Ps1 = ?72. Subsequent parameters are shown in Table 4–1. Parameters are
separated by a semicolon (;).
Status and Error Reporting for the LA75 Plus Companion Printer 4–1