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 | 5.2 Print Quality Problems | 
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| Printed Results | Corrective Action | 
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| Grey background | Clean the main charger and the separation charger. | 
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 | Open the printer front cover. Pull the green clean- | 
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 | ing knob slowly in and out a few times. For full | 
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 | details, see Chapter 6 Maintenance, section 6.5.2 | 
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 | Cleaning the Main Charger Unit on page  | 
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 | 
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 | Conduct color calibration either by switching the | 
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 | printer off then on or using the printer operator | 
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 | panel (MENU). For full details, see Chapter 3 | 
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 | Using the Operator Panel, section 3.11.4 Color | 
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 | Calibration on page  | 
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 | 
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| Dirt on the top edge or back of the paper | Clean the rubber belts. See below. For details, see | 
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 | Chapter 6 Maintenance, section 6.5.1 Cleaning the | 
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 | Paper Feed Unit on page  | 
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 | Clean the main charger and the separation charger. | 
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 | Open the printer front cover. Pull the green clean- | 
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 | ing knob slowly in and out a few times. For full | 
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 | details, see Chapter 6 Maintenance, section 6.5.2 | 
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 | Cleaning the Main Charger Unit on page  | 
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 | 
 | 
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 | Clean the parts in the paper  | 
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 | paper cassette, etc. | 
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 | 
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 | Check secondary the transfer roller. | 
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 | If the secondary transfer roller is dirty with toner, | 
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 | try printing several pages. | 
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| Printing incomplete or out of position | Check that the application software is correctly | 
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 | operated. | 
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 | 
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 | See 5.1.1 Tips on page  | 
Table 
