Problems and Solutions

The quality of copies is

Any dirt or material on the scanning glass will

poor and/or black spots

 

cause spots to appear on copies and transmitted

appear.

 

faxes. Clean the scanning glass as explained in

 

 

Chapter 8.

 

 

 

Dots appear at regular

The drum cartridge may be damaged. Replace the

intervals on received

 

drum cartridge.

documents and copies.

 

 

 

 

 

General problems

Problem

 

Solution

 

 

 

Nothing appears in the

Make sure the power cord is properly plugged into

display.

 

a power outlet and the power switch is turned on.

 

• Connect another electrical appliance to the outlet to

 

 

see if it has power.

 

 

 

The machine does not

If a beep sound is not made when you press the

respond when you press

 

keys, turn off the power switch and then turn it on

any of its keys.

 

again several seconds later.

 

 

 

Automatic document

Check the size and weight of the document (see

feeding does not work for

 

Transmittable Documents in Chapter 2).

transmission or copying.

 

 

 

 

 

No reception occurs when

Make sure you have not run out of paper.

polling is attempted.

 

 

 

Make sure the transmitting machine is in automatic

 

 

reception mode.

 

If the transmitting machine has polling security,

 

 

make sure that your fax number has been entered

 

 

both in your machine and in the transmitting

 

 

machine.

 

 

 

168

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Sharp FO-4970, FO-4650 operation manual General problems, Transmittable Documents in Chapter