Panasonic 8420 Operating Instructions Manual

							191 Care and Maintenance
3Insert each toner cartridge into a plastic bag and seal 
the end of the bag tightly.
4Repeat steps 1 (b) through 3 for each toner cartridge.
To finish repacking the printer:
1Wipe off any loose toner in and around the printer.
NOTE:
•If a toner vacuum is available, it is the best tool for cleaning 
spilled toner. Do not use a standard office vacuum; the toner will 
not be retained by typical vacuum dust collectors.
2Raise the output tray and secure it to the printer with 
adhesive tape.
3Secure the front door, the multi-purpose tray and the left 
side door to the printer with adhesive tape.
If you don’t have a 2nd Cassette Feeder, go to step 6 on next page. 
						

							192 Care and Maintenance
4If you have a 2nd Cassette Feeder, lift the printer up and 
away from the 2nd Cassette Feeder.
SAFETY CAUTION:
•The printer weighs approximately 41.7 kg {91.9 lbs.} and the 2nd 
Cassette Feeder weighs approximately 14.3 kg {31.5 lbs.}. 
Observe standard precautions for lifting heavy objects.
5Repack the 2nd Cassette Feeder in its original shipping 
box.
6Repack any other accessories in their original shipping 
boxes.
7Repack the printer in the original shipping box. Make 
sure that you keep the printer upright and level when 
moving. 
						

							 
Chapter 9
193 
Options 
Upgrade options 
The following upgrade options and consumables are available for the 
KX-P8420 Color Printer from your local Panasonic reseller: 
• 
Hard Disk Drive (KX-PDHD1) for storing print jobs, and additional fonts 
(page 196) 
• 
16 MB (KX-PEMD1) or 32 MB (KX-PEMD2) SDRAM DIMMs (page 199)
Two DIMM slots for additional memory are available on the printer 
controller board. Each slot can support a 16 MB or 32 MB SDRAM DIMM. 
• 
Ethernet (KX-PNBC5) or Token Ring (KX-PNBC6) network card 
(page 202)
You must remove the printer controller board from the back of the 
KX-P8420 in order to install or replace the hard disk, add or replace 
memory, or install a Token Ring or Ethernet network card. 
Removing and replacing the printer controller board 
To remove the printer controller board: 
1 
Turn the printer OFF, unplug the power cord and 
disconnect any cables connected to the connectors on 
the back of the printer. 
2 
Loosen the two thumbscrews that secure the printer 
controller board to the back of the printer, using a cross-
point head (+) screwdriver. 
						

							 
194 Options 
3 
Carefully pull the printer controller board out of its slot in 
the printer. 
For instructions on installing printer options see: 
• 
“Installing a hard disk drive” on page 196 
• 
“Installing additional memory” on page 199 
• 
“Installing network cards” on page 202
Printer controller board 
						

							 
195 Options 
To replace the printer controller board: 
1 
Align the printer controller board with the groove on the 
back of the printer and carefully slide it back inside the 
printer. 
2 
Tighten the two thumbscrews on the printer controller 
board that you loosened earlier, using a cross-point 
head (+) screwdriver. 
3 
Plug in the power cord and reconnect any cables to the 
back of the printer.
Printer controller board 
						

							 
196 Options 
Installing a hard disk drive 
The following section explains how to install the hard disk drive on the 
KX-P8420. It also describes how to initialize the new hard disk drive for use 
from the printer’s front panel.
To install the hard disk drive you will need to remove the printer controller 
board, install the drive and then replace the printer controller board in the 
printer. For instructions, see “Removing and replacing the printer controller 
board” on page 193.
SAFETY CAUTION:
 
• 
To avoid electric shock ensure your hands are dry before touching the 
printer’s power plug.
CAUTIONS:
 
• 
Do not drop or bend the hard disk drive. 
• 
Do not touch the hard disk drive connector and electrical circuit board. 
• 
Protect the hard disk drive from static electricity by keeping it in its anti-
static package until you are ready to install it. 
• 
Avoid exposing the hard disk drive to direct sunlight, high temperatures, 
or humidity.
Kit contents
•Four screws•Four stand offs
•Hard disk drive (KX-PDHD1)•Cable
•Label
The shape of a cable is subject 
to change. 
						

							197 Options
To install a new hard disk drive:
1Place the printer controller board on a stable surface. 
2Insert the provided cable into the connector on the 
printer controller board, directing a projection on the 
cable against the groove in the connector.
Slide the cable until the click is heard.
3Unpack the new hard disk drive. With the electrical 
circuit board side up, place the drive on a flat surface or 
on the palm of your hand.
Do not touch the drive with magnetic objects or place objects 
sensitive to magnets near the drive.
4Screw the four stand offs in the back of the hard disk 
drive.
Cable
Projection
Hard disk drive 
						

							 
198 Options 
5 
Put the four stand offs of the hard disk drive into the four 
holes, and secure the hard disk drive on the printer 
controller board with four screws. 
6 
Insert the other end of the cable into the connector on 
the hard disk drive. 
The pins on the hard disk drive’s connector are in two groups 
(A and B). Be sure to insert the cable into the part A. 
7 
Stick the label provided to the hard disk drive. 
8 
Replace the printer controller board in the printer.  
For instructions, see “Removing and replacing the printer controller 
board” on page 193.
AB 
						

							199 Options
After you install the hard disk and power on the printer, you may be 
prompted to initialize the new hard disk drive. If so, follow the directions 
below:
1From Ready or Ready(Sleep), press the Menu/Exit 
button to enter the Setup menus.
2Press the Continue/Forward button until Hard Disk 
appears. Follow the instructions on the LCD.
Installing additional memory
The following section explains how to install a 16 or 32 MB SDRAM 
(Synchronous Dynamic Random Access Memory) DIMM (Dual In-line 
Memory Module) on the KX-P8420.
To install the SDRAM DIMM (illustrated below) you will need to do the 
following:
•Remove the printer controller board from the back of the printer.
•Install a 16 or 32 MB SDRAM DIMM in either of the two empty SDRAM 
slots on the printer controller board.
•Replace the printer controller board.
IMPORTANT:
•To avoid electric shock ensure your hands are dry before touching the 
printer’s power plug.
•SDRAM DIMM
CAUTIONS:
•Do not drop or bend the SDRAM DIMM.
•Do not touch the connector edge of the SDRAM DIMM.
•Protect the SDRAM DIMM from static electricity by keeping it in its anti-
static package until you are ready to install it.
•Avoid exposing the SDRAM DIMM to direct sunlight, high temperatures, 
or humidity.
Initializing the hard 
disk
The shape of a 
SDRAM DIMM is 
subject to change.
Kit contents 
						

							 
200 Options 
The printer controller board ships with the following memory configuration: 
• 
The DIMM slot numbered J1, is reserved for the printer’s system software 
ROM DIMM. 
• 
The DIMM slot numbered J8 contains a 16 MB SDRAM DIMM.  
• 
The remaining two slots, J2 and J3 are empty. 
Additional SDRAM DIMMs may be purchased for your printer in 16 or 
32 MB configurations, allowing your printer a maximum memory 
configuration of 80 MB of SDRAM. 
To install a SDRAM DIMM you will need to remove the printer controller 
board, install the SDRAM DIMM, then replace the controller board in the 
printer. For instructions, see “Removing and replacing the printer controller 
board” on page 193.
Installing SDRAM 
DIMMs
The lever may be only on one side 
of each socket.
J8 (Standard DIMM)
J1 (ROM DIMM)
J2 (Empty)
J3 (Empty)