Printer Initialization; Self-Test Printing Mode; Hexadecimal Dump Function; Monochrome Printing Mode - Epson STYLUS 3000 Service Manual

Epson printer user manual
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Product Descriptions

1.5.4 Printer Initialization

This printer has three initialization types: Power-on initialization, Operator initialization, and Software
initialization.

Power-on Initialization

Triggers

Actions performed

Initialize the printer mechanism.

Clears input data buffer.

Clears download character set.

Clears print buffer.

Sets default values.

Operator Initialization

Triggers

Actions Performed

Clears input data buffer.

Clears download character set.

Clears print buffer.

Sets default values.
 
Software Initialization

Trigger
ESC @ commend

Actions Performed

Clears print buffer.

Sets default values.

1.5.5 Self-test Printing Mode

This printer has the self-test printing mode to check several printer functions.

Trigger

Items checked

Function of the control circuit board

Function of the printer mechanism

Print quality

1.5.6 Hexadecimal Dump Function

Pressing the LF/FF and Load/Eject buttons while turning on the printer activates the hexadecimal dump
mode. Each line has Hexadecimal codes, along with their corresponding letters printed in the right
column. If a received code denotes an unprintable character, a control code such as "." (period) is printed
in the right column. This function enables users to check whether the data from the host is properly
transferred. Turn off the printer to exit the mode.

1.5.7 Monochrome Printing Mode

When the printer is in the ink end (color) condition, the black ink is substituted to continue to print. To
switch to monochrome printing mode, turn off and back on the printer. This mode is also selected by the
command "ESC (K)". The Color select command "ESC r" is ignored in this mode.
1-30
Turning on the printer
Cold reset command (Remote RS command)
Pressing the Pause button for 3 seconds
The printer recognizes the /INIT signal (negative pulse) of parallel interface.
LQ mode:
Pressing LF/FF button while turning on the printer
Draft mode:
Pressing Load/Eject button while turning on the printer
Rev. A

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Stylus color 3000

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