Removing and Re-installing the TrayAssembly6-19Printer OptionsRe-installing the Tray AssemblyAfter installing a memory upgrade, an optional interface, or an inter-nal hard disk drive, use the following instructions to re-install the trayassembly.O CAUTION: It's very important to protect the printer tray assembly fromelectrostatic damage while performing this task.If an anti-static wrist strap is provided in your printer option kit, attachone end of it to your wrist and the other end to any convenient electricalground (for example, the bare metal chassis of equipment, as on the back ofa computer, that is plugged in but turned off). Never attach the wriststrap to any piece of equipment with an electrical current present. Turn offall power switches first. Plastic, rubber, wood, painted metal surfaces, andtelephones are not acceptable grounding points. The printer isn't anacceptable grounding point either because it must be unplugged before youperform this task.If you don't have an anti-static wrist strap, discharge your body's staticelectric charge by touching a grounded surface before you handle any printerboards or components and before removing the tray assembly cover.Redischarge your body each time after walking around and before touchingthe printer tray assembly again. Handle the tray carefully, and try to handleit by the edges only.» Note: The following procedure is written for the system administrator. Donot attempt this procedure if you have no experience working with circuitboards.1 Using both hands, carefully re-insert the tray assembly backinto the slot on the front of the printer.2 Replace the tray assembly screw in the hole located to theright of the fan.Tighten the screw by turning it clockwise.3 Reconnect the two connectors on the tray assembly.You should hear them snap into place.
