Curled or wavy; White Spots on black text ; and graphics at- Page 63

Troubleshooting and routine maintenance

51

B

Curled or wavy

„

Check the paper type and quality. High temperatures and high 
humidity will cause paper to curl.

„

If you do not use the machine often, the paper may have been in the 
paper tray too long. Turn over the stack of paper in the paper tray. 
Also, fan the paper stack and then rotate the paper 180° in the paper 
tray.

White Spots on black text 

and graphics at

2.95 in. 

(75 mm) intervals

Black Spots at 2.95 in. 

(75 mm) intervals

„

Make ten copies of a blank, white sheet of paper. (See 

Making 

multiple copies

 on page 24.) If the problem is not solved, the drum 

unit may have glue from a label stuck on the OPC drum surface. 
Clean the drum unit. (See 

Cleaning the drum unit

 on page 68.)

„

The drum unit may be damaged. Put in a new drum. (See 

Replacing 

the drum unit

 on page 74.)

Examples of poor print 
quality

Recommendation

(75 mm)

2.95 in.

(75 mm)

2.95 in.

(75 mm)

2.95 in.

(75 mm)

2.95 in.