Sharp UX-51 Operation Manual page 97

Problems and Solutions
Reception and copying problems
Problem
The power is on, but no
reception takes place.
The fax paper does not
come out.
The fax paper comes out
blank when you try to
receive or copy a document.
The received document is
faint.
Received images are
distorted.
Copies are distorted.
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Check and remedy
Make sure the wall socket is connected to the
TEL. LINE socket, and not the TEL. SET socket.
The fax paper may be jammed. See "Clearing
jammed fax paper" in this chapter.
Make sure that the fax paper is properly loaded
in your fax. (If the roll has been loaded
backward, nothing will be printed.)
For reception, make sure that the document for
transmission is loaded face down in the feeder
of the transmitting machine.
Make sure that you are using the recommended
fax paper. See "Loading the Fax Paper" in
Chapter 1.
Ask the other party to send higher contrast
documents. If the contrast is still too low, your
fax may have a problem. Make a copy to check
it.
Noise on the telephone line may cause
distortion. Have the other party try sending the
document again.
The print head may be dirty. See "Fax print
head" in Chapter 10.
Make a copy of another document on your fax. If
the copy is also distorted, your fax may have a
problem. If the problem persists, call for service.
Make sure that you are using the recommended
fax paper. See "Loading the Fax Paper" in
Chapter 1.
Make sure that the fax paper is properly loaded
in your machine.
The print head may be dirty. See "Fax print
head" in Chapter 10.