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▲ Caution:
It's very important to protect the printer controller board from
electrostatic damage while performing this task.
If an anti-static wrist strap is provided in your printer option kit,
attach one end of it to your wrist and the other end to any convenient
electrical ground. The bare metal chassis of equipment, such as on
the back of a computer, is suitable if it is plugged in but turned off.
Never attach the wrist strap to any piece of equipment with an
electrical current present. Turn off all power switches first. Plastic,
rubber, wood, painted metal surfaces, and telephones are not
acceptable grounding points. The printer isn't an acceptable
grounding point either because it must be unplugged before you
perform this task.
If you don't have an anti-static wrist strap, discharge your body's
static electric charge by touching a grounded surface before you
handle any printer boards or components and before removing the
controller board cover. If you must walk around before completing
your task, discharge your body’s static electric charge again before
touching the printer controller board.
WARNING!
Turn off the printer and unplug the power cord before
taking the cover off the printer.
ACHTUNG!
Bitte schalten Sie den Drucker aus und ziehen Sie den
Netzstecker heraus bevor Sie die Druckerabdeckung öffnen.
1 Turn off the printer, and then disconnect the power cord and
all interface cables (parallel, serial, AppleTalk, and the
optional interface[s]) from the printer.
2 Using both hands, open the multipurpose tray.
3 Open the printer's front cover.
Push up on the release button, located on the top-right front of
the printer.