Sharp MX-M620N, MX-M700N, MX-M550U Troubleshooting, 2-32, Problem, Check, Solution or cause

TROUBLESHOOTING

Check the following troubleshooting list before requesting service as many problems can be fixed by the user. If you are unable to solve the problem by checking the list, turn off the main power switch and the power switch, unplug the power cord.

Problems related to general use of the machine are described below. For problems related to the copy function, see page 6-3.For problems related to document filing, see page 7-31.For fax, printer, and network scanner/Internet fax problems, see the manuals for those functions. For peripheral device problems, see the explanation of the device.

If the message "CALL FOR SERVICE. CODE:**-**"(Note)appears in the touch panel, turn off the main power switch and the power switch, wait about 10 seconds, and then turn the main power switch and the power switch back on. If the message still appears after turning the main power switch and the power switch off and on several times, it is likely that a failure has occurred that requires service. In this event, stop using the machine, unplug the power cord, and contact your Sharp dealer.

Note: Letters and numbers appear in "**-**". When you contact your Sharp dealer, please tell your dealer what letters and numbers appear.

Problem			Check	Solution or cause
			Machine plugged in?	Plug the machine into a grounded outlet.
			The main power switch and power	Turn on the main power switch and the power
			switch are not turned on?	switch. (Page 1-17)
				The printer is warming up. (Warm-up time is
The machine does			READY indicator off?	approximately 120 seconds.) Wait until	the
				READY indicator lights up.
not operate.
			Message indicating need to load paper	Load paper. (Page 2-2)
			displayed?
			Message indicating need to replace the	Replace the toner cartridge. (Page 2-21)
			toner cartridge displayed?
			Message indicating a paper misfeed	Remove misfed paper. (Page 2-23)
			displayed?
Copying/printing		is	A message appears saying that this type	Two-sided printing is not possible on special
			of paper cannot be used for two-sided	paper. Use paper that can be used for automatic
not possible.
			copying.	two-sided printing. (Page 2-13)
Incorrect	bypass		Incorrect display of paper sizes , A3, B4,	When loading sizes A3, B4, A4R, 11" x 17",
			A4R, 11" x 17", 8-1/2" x 14", 8-1/2" x 13"	8-1/2" x 14", 8-1/2" x 13" or 8-1/2" x 11"R,	be
tray paper size.
			or 8-1/2" x 11"R only.	sure to open the tray extension.
Copying/printing		on	The number of sheets placed on the bypass	Do not place more than the maximum number of
paper	from	the	tray exceeds the maximum number.	sheets.
bypass	tray	is
			The bypass guide is not adjusted to the	Adjust the bypass guide to the size of the loaded
skewed.			size of the loaded paper.	paper.

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