HP Deskjet 5850 Color Inkjet Printer - Manual (Page 200)

troubleshooting
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printer is not printing
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paper jam
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paper problems
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print quality is poor
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document is misprinted
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photos are not printing correctly
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borderless printing problems
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banners are not printing correctly
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error messages
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printer lights are on or flashing
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document prints slowly
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automatic two-sided printing problems
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if you continue to have problems
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ethernet problems
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wireless communication problems