
Operator Warning Messages
| Message | Problem | Action | |
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| BLACK TONER | The black toner | 1. | When the print quality begins to degrade, replace | 
| LOW | cartridge is almost | 
 | the black toner cartridge. See “Replacing Toner | 
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 | empty. | 
 | Cartridges” on page  | 
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 | 2. | If the problem continues after you install a new | 
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 | cartridge, call for service. | 
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| CLEAN SENSOR & | There is a density | 1. | Clean the density detection sensor. See “Cleaning | 
| TRANSFER DRUM | sensor error or the | 
 | the Window of the Density Detection Sensor” on | 
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 | sensor is dirty. | 
 | page  | 
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 | 2. | If the problem continues, call for service. | 
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| CLEANER BELT LOW | The fuser cleaning belt | 1. | Print a configuration page. See “Printing a | 
| GET PRINT COUNT | is nearly worn out. | 
 | Configuration Page” on page  | 
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 | 2. | Record the print count number for later reference. | 
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 | 3. | Replace the fuser. See “Replacing the Fuser” on | 
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 | page  | 
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 | 4. | If the problem continues after you replace the | 
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 | fuser, call for service. | 
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 | Note: A fuser can print approximately 60 000 pages | |
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 | under normal operating conditions. If you print on | |
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 | transparencies, this number becomes smaller. | |
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| CYAN TONER | The cyan toner | 1. | When the print quality begins to degrade, replace | 
| LOW | cartridge is almost | 
 | the cyan toner cartridge. See “Replacing Toner | 
| 
 | empty. | 
 | Cartridges” on page  | 
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 | 2. | If the problem continues after you install a new | 
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 | cartridge, call for service. | 
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| FUSER OIL | The fuser oil supply is | 1. | Replace the fuser oil bottle within the next 50 | 
| LOW | low. | 
 | prints. See “Replacing the Fuser Oil Bottle” on | 
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 | page  | 
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 | 2. | If the problem continues after you replace the fuser | 
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 | oil bottle, call for service. | 
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| MAGENTA TONER | The magenta toner | 1. | When the print quality begins to degrade, replace | 
| LOW | cartridge is almost | 
 | the magenta toner cartridge. See “Replacing | 
| 
 | empty. | 
 | Toner Cartridges” on page  | 
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 | 2. | If the problem continues after you install a new | 
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 | cartridge, call for service. | 
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| REPLACE DRUM TO | The photoconductor | 1. | For the best print quality, replace the | 
| ENSURE QUALITY | drum’s sensitivity is | 
 | photoconductor drum cartridge. See “Replacing | 
| 
 | low; the drum should | 
 | the Photoconductor Drum Cartridge” on page | 
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 | be replaced. | 
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 | 2. | If the message continues after you replace the | 
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 | drum, call for service. | 
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| YELLOW TONER LOW | The yellow toner | 1. | When the print quality begins to degrade, replace | 
| 
 | cartridge is almost | 
 | the yellow toner cartridge. See “Replacing Toner | 
| 
 | empty. | 
 | Cartridges” on page  | 
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 | 2. | If the problem continues after you install a new | 
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 | cartridge, call for service. | 
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