6 Basics

BASIC CONTROLS AND INDICATORS

POWER ON/OFF SWITCH

This power on/off switch is located at the left-rear corner of the printer.

Press the I side of this switch to turn on the printer. Make sure the O side (the off side) is depressed when :

Connecting or disconnecting cables

Performing operations close to the printhead carriage

JB0-AU

When you turn on the printer, it automatically performs a brief diagnostic test which lights indicators, moves the printhead carriage, and sounds the beeper. For more about this test, see "Power-Up Sequence Test," Page 131.

The power on/off switch is also used in conjunction with switch panel keys to perform various printer operations following the power-up sequence test. For information about these key combinations, see "Combination Keys," page 10.

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Epson 4100 manual Basic Controls and Indicators, Power ON/OFF Switch