Sharp AR-5420 Manual de instrucciones - Página 31

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TROUBLESHOOTING THE UNIT

This chapter describes misfeed removal and troubleshooting.

TROUBLESHOOTING

If any problem occurs, check the list below before contacting your authorised service

representative.

Problem

Unit does not

operate.

Blank copies

Copies are too

dark or too light.

Dust, dirt,

smudges appear

on copies.

Striped copies

Paper misfeeds

frequently.

Images rub off the

copy easily.

Printing is not

uniform between

the edges of the

paper and the

center.

Possible cause

Unit plugged in?

Power switch on?

Side cover closed securely? Gently close the side cover.

Front cover closed?

Is the original placed face

down on the original table?

Is the scan head locking

switch locked?

Is original image too dark or

too light?

Is the unit in the automatic

exposure mode?

Is the unit in the photo

exposure mode?

Original table or original

cover dirty?

Original smudged or

blotchy?

Is transfer charger clean?

Non-standard paper used? Use standard paper. If using special

Paper curled or damp?

Pieces of paper inside unit? Remove all pieces of misfed paper.

Paper guides in the paper

tray not set properly?

Too much paper in the

paper tray or multi-bypass

tray?

Is the paper too heavy?

The fusing temperature is

not appropriate.

Paper damp?

The fusing temperature is

not appropriate.

Solution

Plug the unit into a grounded outlet.

Turn the power switch on.

Gently close the front cover and then

close the side cover.

Place the original face down on the

original table.

Unlock the scan head locking switch.

Adjust the exposure manually.

Adjust the automatic exposure level.

Cancel the photo exposure mode.

Clean regularly.

Use a clean original.

Clean the transfer charger.

papers, feed the paper through the

multi-bypass tray.

Store paper flat in the wrapper in a

dry location.

Set the guides properly depending on

the paper size.

Remove excessive paper from the

tray.

Use paper within the specified range.

In the user programs, set "Fusing

temperature setting when the bypass tray

is used" (program 29) to "2 (High)".

Replace with dry paper. If the unit is

not used for long time, remove the

paper from the paper tray and store it

in its wrapper in a dry location.

In the user programs, set "Fusing

temperature setting when the bypass

tray is used" (program 29) to "1 (Low)".

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