| Problem | Possible Cause | Solution |
bubble print
|
Defective toner cartridge
|
Replace the toner cartridge.
|
bubble print
|
Defective High Voltage Power Supply
|
Replace the High Voltage Power Supply
|
| bubble print |
Photosensitive drum inside toner cartridge is not grounded |
Check for proper mounting of the High Voltage Power Supply, and the HVPS ground contact on the toner cartridge. Check for proper seating of toner cartridge. Replace toner cartridge. |
bubble print
|
Paper does not meet specifications -- moisture content, conductivity, or surface finish may not work correctly with the electrophotographic process.
|
Try a different paper type
|
