LJ 4100 Service mode functions

Service mode should be used only by authorized service personnel. The following can be done in Service mode:

•Verify and set the page count and serial number. These are shown on the configuration page.

•Set the cold-reset paper size default. (This sets the factory default paper size to either Letter or A4.)

•Turn the diagnostic functions on or off (for software developers only).

•Clear the event log.

Set the interval at which the PERFORM PRINTER MAINTENANCE message appears on the control-panel display.

Entering Service mode

1While turning on the printer, hold down SELECT and CANCEL JOB until all of the lights on the control panel are lit.

2Press the right side of MENU, and then press SELECT. The message SERVICE MODE temporarily appears and will reappear when the printer completes the initialization process.

3To exit Service mode, press GO.

Note

If READY appears in the control panel, the buttons might have been released too soon, or the wrong buttons were pressed.

Note

Before replacing the formatter or firmware DIMM, print a configuration page and a menu map to verify the current printer settings. Use the information on these pages to reset the customer’s printer settings.

120 Chapter 2 – Service mode

EN