Oki LP-1040 Maintenance Manual page 267

(17) Solid white print
Nothing is printed.
Print sample
■Cause and solution
(a) Cause:
Photoconductor drum rotation problems due to clogged cleaner unit
Solution:
Replace the process cartridge.
(b) Cause:
Lack of toner
Solution:
Supply the toner.
7-38
Possible problem locations
- Process cartridge
- Developer unit
- LED head