Oki C5400n Guide: User's, C5400 Series (American English) - Page 134

Longitudinal black stripes Possible cause Remedy Image drum is damaged. Replace image drum (see "Image Drum Replacement" on page 79). Toner is low. Change toner cartridge (see "Toner Cartridge Replacement" on page 72). Periodic black lateral lines or spots. • If the lines or spots occur at intervals of approximately 44 - 94 mm, the green surface of the image drum is damaged or dirty. If damaged, replace the image drum cartridge (see "Image Drum Replacement" on page 79). If dirty, wipe the image drum gently with soft tissue. If this does not work, replace the image drum. • If the lines or spots occur at intervals of approximately 113 mm, the fuser roller is damaged. Change the fuser (see "Fuser Replacement" on page 93). The image drum has been exposed to light. Remove the image drum from the printer and store it in a dark place for several hours. If this does not work, replace the image drum (see "Image Drum Replacement" on page 79). Faint shading on unprinted sections Possible cause Paper has been affected by static electricity. Paper is too thick. Toner is low. Remedy Store paper within specified temperature and humidity levels (see "Specifications" on page 142). Use recommended paper (see "Media Recommendations" on page 10). Replace toner cartridge (see "Toner Cartridge Replacement" on page 72). Troubleshooting • 134