11 MAINTENANCE

Functions cannot be set

Item to be checked

Countermeasure

Reference page

Are there functions that cannot

See the copying function combi-

P.389 “Copying Function Com-

be combined set together?

nation and image quality adjust-

bination Matrix”, P.391 “Image

 

ment combination matrices, and

Quality Adjustment Combination

 

then set them again.

Matrix”

Image density is too low

Item to be checked

Countermeasure

Reference page

Is the message to replace the

Replace the toner cartridge.

P.302

“Replace Toner Car-

toner cartridge displayed on the

 

tridge Symbol”

touch panel?

 

 

 

Is the level of the colour adjust-

Use the manual density buttons

P.136

“Copy Density Adjust-

ment set suitably?

or the background adjustment

ment”,

P.144 “Background

 

function to adjust the image den-

Adjustment”

 

sity properly.

 

 

Image density is too high

Item to be checked

Countermeasure

Reference page

Is the level of the colour adjust-

Use the manual density buttons

P.136 “Copy Density Adjust-

ment set suitably?

or the background adjustment

ment”, P.144 “Background

 

function to adjust the image den-

Adjustment”

 

sity properly.

 

Image trouble

Phenomenon

Usual cause

Countermeasure

The copied image is stained.

The Automatic Document

Lower them fully to block outside light.

 

Feeder (optional) or the

 

 

Platen Cover (optional) is not

 

 

lowered fully.

 

 

The original glass, platen

Clean them.

 

sheet, scanning area or

P.374 “Daily Inspection”

 

guides are dirty.

 

 

The copy density is set

Make the density lighter if you use the

 

darker.

manual copy density mode. Or use the

 

 

automatic copy density mode.

 

A highly transparent original

Place a blank sheet of paper, the same

 

is used.

size as the original or larger, over the orig-

 

 

inal.

376 Simple Troubleshooting

Page 378
Image 378
Toshiba e-STUDIO2500c/3500c/3510c manual Functions cannot be set, Image density is too low, Image density is too high