4511-xxx
Diagnostic aids—E238, E240, and E240n
3-11
Diagnostics mode selections
To enter Diagnostics mode, turn off the printer, open the front access cover,
press and hold while turning on the printer, and close the cover when
the light displays.
Print menus by pressing and holding until the lights flash.
Development
Menu item Use setting to Value
Edge to
Edge
Allow a shift of all four
margins (top, bottom,
right, and left) to the
physical edge of the page
(printable area of
supported paper).
Setting is ignored by
PPDS interpreter.
Off (default)
On
Print quality
pages
Print test pages by
pressing and holding
until the lights flash.
Help isolate print quality
problems, such as
streaking. Four pages
print:
• A text page with printer
information, cartridge
information, current
margin settings, and a
graphic.
• Three pages all gray,
all black, and the last
one blank.
Note: Cartridge lockout
function is disabled.
Continuous
print—
simplex
Tray 1
Continuously print pages
containing cross lines,
printer information, and
margin settings.
Press and hold until
the lights flash to begin.
Press
to stop.
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