HP QMS 1660E - Manual (Page 194)

Storage
Options
QMS 1660E Print System Reference 6-60
Removing an IDE-SCSI Board
Use the following instructions if you ever need to remove an IDE-
SCSI board from the printer (for example, if you decide to install an
optional IDE internal hard disk after the IDE-SCSI board is already
installed).
Illustrations are not included with this procedure. However, you can
use the appropriate illustrations in the previous section, “Installing an
IDE-SCSI Board.”
M
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.
▲ 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 (for example, the bare metal chassis of equipment,
as on the back of a computer, that 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. Redischarge your body’s static electric charge
each time after walking around and before touching the printer
controller board again.