Panasonic KX-P8420 User Manual

6.HDD trouble

Turning off the printer while RIP board is accessing its HDD drive might damage the HDD. This happens just after

printing is finished or when WebTools are accessed or network printing is being executed.

If HDD is damaged, sometimes printer keep showing “Initializing” and does not become “Ready” statsu.

When this happen, HDD unit has to be replaced.

7.Service mode menu

The followings are the caution for using KX-P8420 service mode that are not included in the KX-P8420 Service

manual. Please refer to the manual for the detailed operation or other information.

1st level

2nd level

3rd level

Note

Standard Tray

Option 1 Tray

(1) Display

Information

Display Tray

Status

Option 2 Tray

It shows a kind of casstte (Letter,Legal,..) which is inserted into the

specific tray.But the display is not updated after replacing cassette

to another type while showing cassette type. You have to exit and

enter this menu again to show the type of replaced cassette

correctly.

Service Print 1

Print Test

Service Print 2

Though “Printing” is not shown on LCD, service printing starts by

pressing Enter key. “Service Print1” uses default paper size (Letter

or A4 depending on the region). “Service Print2” uses Legal size

paper. Before executing service print1 or print2, insert the

corresponding cassette. Otherwise,Error LED blinks and Service

Print does not start.

Cyan Toner Cartridge

Magenta Toner Cartridge

Yellow Toner Cartridge

BlaToner Cartridge

Because of toner sensor characteristics, the status of toner

cartridge sensor is unstable if the toner cartridge is removed. So

entering this menu shows “Installed” and “Removed” alternately. If

the toner cartridge is installed, it keeps showing “Installed”.

Option Access Door

The status shown here is the opposite of the actual sensor status.

So if the real staus is “Opened”, LCD shows “Closed”. If the real

status is “Closed”, LCD shows “Opened”.

Sensor

Group B

Charge Unit

It always shows “Installed”. But the printer always check to see

whether charger is installed correctly or not during initializing

process after turned on the printer normally. If the charger unit is not

installed, “Charger Not installed” is shown on LCD. So charger unit

sensor is tested without using this menu.

(2) Engine

Test

Misc.

Components

Transfer Roller Solenoid

When exiting this menu by pressing Enter key, the location of

transfer roller may not return to “removed” position. So please turn

off and turn the printer again after executing this menu.