List of Maintenance Codes
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/title-bar.gif) |
To perform maintenance of the machine, press the Maintenance button repeatedly until the desired code is displayed on the LED, then press the Black or Color button.
Maintenance Code
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Operation
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_a.jpg)
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Prints the nozzle check pattern.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_h2.jpg)
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Performs Print Head Cleaning.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_y3.jpg)
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Performs Print Head Deep Cleaning.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_p4.jpg)
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Prints the head alignment sheet.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_u5.jpg)
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Scans the head alignment sheet.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_l6.jpg)
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Prints the current head alignment setting.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_b7.jpg)
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Cleans the paper feed roller.
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![](/library/attachments/ServiceWareImages/LDImages/SolutionAnswer/MP190/o_lcd_j8.jpg)
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Cleans the bottom plate.
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