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

Printer Initialization

This printer has three initialization types: power-on initialization, operator initialization, and software
initialization.
Initialization Type
Power-on Initialization
Operator Initialization
Software Initialization

Self-test Printing Mode

This printer has a self-test printing mode that checks several printer functions.
Triggers: LQ mode
Draft mode
Items checked:

Function of the control circuit board

Function of the printer mechanism

Print quality

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 a 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 this mode.

Monochrome Printing Mode

When the printer is out of color ink, black ink is substituted to continue printing. To switch to monochrome
printing mode, turn the printer off and back on. You can also select this mode with the ESC (K) command.
The printer ignores the color select command, ESC r, in this mode.
EPSON Stylus Color 3000 Service Manual
Table 1-35. Printer Initialization Types
Triggers
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) from the parallel
interface.
ESC @ command
Pressing LF/FF button while turning on the printer
Pressing Load/Eject button while turning on the printer
EPSON Stylus COLOR 3000
Actions Performed
Clears the input data buffer.
Clears downloaded characters.
Clears the print buffer.
Sets default values.
Clears the input data buffer.
Clears downloaded characters.
Clears the print buffer.
Sets default values.
Clears the print buffer.
Sets default values.
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