INDICATORS AND DISPLAY MESSAGES
If one of the following indicators lights up or one of the following messages appears in the display, check the
meaning of the indicator or message in the following table and take appropriate action.
ORIGINAL SIZE indicator
PAPER SIZE indicator
[CH] appears in the number of
Letters and numbers appear in the
"FUL" appears in the display
When "Use close paper size" is disabled
Misfeed location indicator lights up at the
optional 500-sheet paper feed unit
Service by an authorised SHARP service technician is
Developer is required. Contact your authorised service
Replacement of toner cartridge will be needed soon.
Prepare a new cartridge.
• Toner cartridge must be replaced. Replace it with a
• Toner is being fed.
A paper misfeed has occurred. Remove the misfeed as
explained in "MISFEED REMOVAL".
The tray is out of paper. Load paper. It is also possible
that the tray is not inserted completely into the
machine. Make sure it is inserted correctly.
The original is not placed in the correct orientation.
Rotate the original so that it is in the same orientation
as the blinking ORIGINAL SIZE indicator.
A blinking PAPER SIZE indicator means that the size
of paper loaded in the tray is different from the paper
size setting for the tray. Change the paper size setting.
To clear the display, do one of the following:
• Use the [TRAY] key to change the tray selection.
• Open and close the tray.
• Press the [CLEAR ALL] key (
The front cover or the side cover is open. Close the
front cover or the side cover.
The toner cartridge is not installed correctly. Reinstall
the toner cartridge. If [CH] still blinks in the display after
reinstalling the toner cartridge, contact your authorised
Turn off the power switch, wait about 10 seconds, and
then turn on the switch again. If this does not clear the
message, write down the code (Main code and sub
code exists.) that appears and then unplug the power
cord and contact your authorised service
representative. Tell your authorised service
representative what code appeared and the
circumstances under which it appeared.
Data is being held in memory. Print the data or clear it
Press the [TRAY] key to manually select the tray and
then press the [ONLINE] key (
If you are selecting the bypass tray, load paper in the
The side cover of the 500-sheet paper feed unit is
open. Close the side cover.
Toner cartridge replacement
The number of copies display
Cause and solution
). Printing will begin.