QMS 1725E, Reference

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Removing and Re-
installing the Tray
Assembly
6-15 Printer Options
Removing and Re-installing
the Tray Assembly
When you are installing the next four printer options (memory, Intelli-
font SIMM, optional interface, and internal hard disk drive), the inter-
nal tray assembly must be accessed first. Use the following
instructions to remove the tray assembly from the printer and to rein-
stall the tray assembly once the printer option has been installed. A
small-point Phillips screwdriver is needed for this procedure.
O Caution: It's very important to protect the printer tray assembly 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 tray assembly cover.
Redischarge your body each time after walking around and before touching
the printer tray assembly again. Handle the tray carefully, and try to handle
it by the edges only.
Removing the Tray Assembly
» Note: The following procedure is written for the system administrator. Do
not attempt this procedure if you have no experience working with circuit
boards.
1 Turn off both power switches and remove the power cord.