Printer Initialization; Hardware Initialization; Software Initialization; Default Values - Epson LQ-2550 Technical Manual

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1.6 PRINTER INITIALIZATION

There are two initialization methods: hardware

1.6.1 Hardware Initialization

This type of initialization occurs when printer power is turned on or when the printer receives the I NIT
signal from the
the following actions:
Initializes the printer mechanism
Clears the downloaded character set
Clears the input data buffer
Clears the image buffer
Sets printer selections to their default values (Refer to Section 1.6.3.)
1.6.2

Software Initialization

This type of initialization occurs when the printer receives a command (ESC @) via software. When the
printer is initialized in this way, it performs the following actions:
Clears the image buffer
Sets printer selections to their default values
(Several settings are changed by the last SelecType operation before ESC@ is input (Refer to Section
1.6.3.).
1.6.3

Default Values

The default values set by the default setting mode of the SelecType function are only reset by a hardware
initialization. The printer's default values are as follows:
Page Position
Left and Right Margin
Line Spacing
Vertical Tab Positions
Horizontal Tab Positions
VFU Channel
Family Number of Type Style
Downloaded Characters
Justification
Character Spacing
Bit Image Mode Assignment
initialization and software initialization.
Preset paper position becomes top-of-form position
1/6"
Cleared
Every 8 characters (relative)
Channel O
Deselected
Left justification
No additional spacing
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