Samsung CLX-8380ND 用户手册

12.18   

<Troubleshooting>

White spots appears on the page:
• The paper is too rough and a lot of dirt from 

a paper falls to the inner devices within the 
machine, so the transfer roller may be dirty. 
Clean the inside of your machine. 
(Page 11.2) Contact a service 
representative.

• The paper path may need cleaning. Contact 

a service representative.

If black vertical streaks appear on the page:
• The drum inside the printer has probably 

been scratched. Remove the imaging unit 
and install a new one. (Page 11.5)

If white vertical streaks appear on the page:
• The surface of the LSU part inside the 

machine may be dirty. Clean the LSU. 
Contact a service representative.

If vertical streaks appear on the page:
• The surface of the scanner glass and its 

white sheet may be dirty. Clean these unit. 
See 11.2 . If this problem persists, contact a 
service representative.

Color or Black 
background

If the amount of background shading becomes 
unacceptable:
• Change to a lighter weight paper. (Page 4.3)
• Check the environmental conditions: very 

dry conditions (low humidity) or a high level 
of humidity (higher than 80% RH) can 
increase the amount of background 
shading.

• Remove the old imaging unit and then, 

install a new one. (Page 11.4)

• Clean the inside of the machine. Contact a 

service representative.

• Check the paper type and quality. 

(Page 4.3)

• Remove the imaging unit and then, install a 

new one. (Page 11.4)

If marks repeatedly appear on the printed side 
of the page at even intervals:
• The imaging unit may be damaged. If a 

repetitive mark occurs on the page, run a 
cleaning sheet through several times to 
clean the cartridge; contact a service 
representative. After the printout, if you still 
have the same problems, remove the 
imaging unit and then, install a new one. 
(Page 11.4)

• Parts of the machine may have toner on 

them. If the defects occur on the back of the 
page, the problem will likely correct itself 
after a few more pages.

• The fusing assembly may be damaged. 

Contact a service representative.

Background scatter results from bits of toner 
randomly distributed on the printed page. 
• The paper may be too damp. Try printing 

with a different batch of paper. Do not open 
packages of paper until necessary so that 
the paper does not absorb too much 
moisture.

• If background scatter occurs on an 

envelope, change the printing layout to 
avoid printing over areas that have 
overlapping seams on the reverse side. 
Printing on seams can cause problems.

• If background scatter covers the entire 

surface area of a printed page, adjust the 
print resolution through your software 
application or in printer properties.

• If characters are improperly formed and 

producing hollow images, the paper stock 
may be too slick. Try different paper. 
(Page 4.3)

• If characters are improperly formed and 

producing a wavy effect, the scanner unit 
may need service. Contact a service 
representative.