Read Sharp AM-400 (serv.man9) Service Manual online
AM-400DE
1 – 14
10. Troubleshooting
1. Display
2. Audible signals
3. Printer error code (Troubleshooting Refer to page 5-27 to 5-29)
PAPER JAM
The roller sensor could not detect its home position
after driving the pick up motor for the specified period.
SYSTEM ERROR [P2]
The printer controller detected the optical unit (LSU)
error.
SYSTEM ERROR [P3]
Thermistor error was detected.
SYSTEM ERROR [P4]
ROM or RAM error was detected on the printer
control unit.
SYSTEM ERROR [P5]
High temperature error was detected.
SYSTEM ERROR [P6]
Low temperature error was detected.
SYSTEM ERROR [P7]
Communication error between the main controller
and the printer controller was detected.
The roller sensor could not become NOT-Active after
passing the specified period from picking up paper.
The external interrupt signal for optical unit (LSU) or
High-voltage control did not become active after
passing the specified period.
4. Scanner message (Troubleshooting Refer to page 5-29)
ADD PAPER
Check the printing paper. If the tray is empty, add
paper. If there is paper in the tray, make sure it is
inserted correctly (take out the stack, align the edges
evenly, and then reinsert it in the tray). Printing will
resume automatically when the output tray is
replaced.
BYPASS MISFEED
The paper is not inserted correctly in the bypass tray.
Remove the paper and insert it again.
BYPASS PAPER! /
IF COPY, PRESS
(alternating messages)
Paper has been inserted in the bypass tray. If the
paper has been inserted for a copy job, press
to
set the paper size. If the paper is for a print job, the
message can be disregarded.
COVER OPEN
One or both of the print compartment covers are
open. Make sure both covers are closed.
DATE/TIME UNSET
The date and time need to be set. Note
that the date and time settings will be lost if the
machine is unplugged or a power failure occurs.
DOCUMENT JAMMED
The original document is jammed. See the following
section, Clearing Paper Jams. Document jams will
occur if you load more than 20 pages at once or load
documents that are too thick.
The document may also jam if the receiving machine
doesn’t respond properly when you attempt to send a
fax.
DOCUMENT READY
A document has been inserted in the auto document
feeder and the machine is waiting for you to begin
faxing or copying.
DRUM LIFE OVER
This appears when the drum cartridge needs
replacement.
A
FAX RX IN MEMORY
A fax has been received in memory because the
toner cartridge needs replacement, you have run out
of printing paper, the paper is jammed, or paper is
inserted in the bypass tray. The fax will print out
automatically when the problem is fixed.
GRP. SPACE FULL
This appears if you attempt to store a Group when
both Groups are already programmed.
LINE ERROR
Transmission or reception was not successful. Press
the STOP key to clear the message and then try
again. If the error persists, see Line error.
MEMORY IS FULL
If faxes have been received to memory because
printing is not possible (an additional message will
indicate the problem), resolve the problem so that
printing can continue (see Substitute Reception to
Memory)
If you are attempting to send a fax, see If the memory
becomes full.
If you are copying, see If MEMORY IS FULL appears.
NO # STORED
This appears if you attempt to search for a Speed Dial
number when none have been stored.
OFF HOOK
This appears when an extension phone connected as
explained is lifted. Only
can be pressed in
fax mode when this message appears.
OUTPUT TRAY OFF
The output tray is not attached correctly. Attach it as
explained. The machine will not operate if the output
tray is not attached correctly.
PAPER JAMMED
The printing paper is jammed.
SET BYPASS PAPER /
SIZE: XXXX
(alternating messages; a
paper size appears in
“XXXX”)
Paper must be inserted in the bypass tray for a print
job or copy job that requires use of the bypass tray.
Insert the indicated size of paper in the tray.
SYSTEM ERROR [XX]
(a number appears in
“XX”)
(Refer to Printer error code/
Scanner message)
(Refer to Printer error code/
Scanner message)
If this message appears, unplug the power cord, wait
about 10 seconds, and then plug it back in. If the
message still appears, unplug the power cord and call
for service.
TONER EMPTY
The toner cartridge must be replaced. Printing will be
possible (although the output will be increasingly
faint) until a fax is received. Once a fax is received, it
will be held in memory and printing will not be
possible until the toner cartridge is replaced.
TONER NEAR EMPTY
The toner cartridge is almost out of toner
(approximately 200 pages can be printed).
TOTAL PAGE(S) 01
Number of fax pages transmitted or received.
Continuous tone
3 seconds
Indicates the end of transmission or
reception.
Intermittent tone
(3 beeps)
5 seconds
(1 second on, 1
second off)
Indicates incomplete transmission or
reception.
Rapid intermittent
tone
35 seconds
(0.7 seconds on,
0.3 seconds off)
Indicates that an extension phone
connected as explained is off hook.
CHK SCANNER LOCK
The scanner unit could not detect change point of
home postion. (ON -> OFF or OFF -> ON)
CHK SCANNER LOCK/
PLS RETURN POWER
(asternating messages)
Make sure that the scanner lock has been released
and then unplug the power cord, wait at least 5
seconds, and plug it back in.
REMOVE /
BYPASS PAPER
(alternating messages)
A fax has been received to memory because paper is
inserted in the bypass tray (faxes cannot be printed
while paper is in the bypass tray). Remove the paper
from the bypass tray to allow the fax to be printed.
PAPER MISMATCHED
This appears after printing if the size of the printed
image did not match the paper size on some pages
of the job. Check the printed pages and reprint as
needed.
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