Olivetti DR N17, Service Manual, Page: 139 / 558

687200Q Service Manual 5-27
To enter Diagnostic Mode 1:
1 Switch off the printer power
2 While switching ON the printer, press and hold the ITEM UP (2) and the ITEM DOWN (6) keys
until the LCD displays *IOT?*.
3 Press the VALUE MINUS (7) key. The LCD displays PRINT COUNTER OPERATION. This
message indicates that the printer is in Diagnostics Mode 1.
NOTE: You cannot enter a Diagnostics Mode if Power-On Diagnostic Sequence finds an error in ROM/
RAM Check.
NOTE: To execute a test, press the ENTER (4) key.
NOTE: Throughout this manual, the term Tray 1 refers to the tray loaded into the Standard paper tray,
the term Tray 2 refers to the tray loaded into the optional lower 1 paper tray, and the term Tray 3
refers to the tray loaded into the optional lower 2 paper tray.
NOTE: Exit Diagnostics does not have a test function and is used to exit an output test mode.
NOTE: To select a desired diagnostics test, press the MENU UP (1) or MENU DOWN (5) key until the
desired diagnostic is displayed on the LCD. Diagnostic tests are displayed one-by-one in the
order they appear on the Diagnostic Tests Table on the previous pages.
PRINT COUNTER
OPERATION