Error Conditions; Buzzer Operation; Printer Initialization - Epson L-1000 Technical Manual

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1.6.4 Error Conditions

If any of the following error conditions is detected, the printer automatically enters OFF-LINE mode.
l A paper-out signal is detected and forms-override is finished.
The following interface signals are output to indicate the error and to halt data transmission:
BUSY signal becomes HIGH.
ERROR becomes LOW.
No ACKNLG pulse is sent.

1.6.5 Buzzer Operation

The buzzer sounds under the following circumstances:
second interval).
l When a panel setting is accepted (0.1-second ring).

1.6.6 Printer Initialization

There are two initialization methods: hardware initialization and software initialization.
Hardware Initialization
This type of initialization takes place when the printer power switch is turned ON (and the AC power cord is
plugged in) or when the INIT signal is received over the parallel interface line.
When the printer is initialized, it performs the following actions:
(a) Initializes printer mechanism.
(b) Clears input data buffer.
(c) Clears downloaded character set.
(d) Clears the print buffer.
(e) Returns printer settings to their default values.
Software Initialization
This type of initialization takes place when the printer receives the software initialize code. Upon receipt of this
code, the printer does not perform the functions listed above under (a), (b), and (c). The settings changed by
the last SelecType operation are reset.
LQ-500/ L-1000
GENERAL DESCRIPTION
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