
Main motor service check
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| 
 | Turn off the printer, and unplug the main motor cable at J17. Turn on the printer, and check | ||||||
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 | J17 pins | Voltages | 
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| Main motor gear drive | 
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 | Pins  | Approx. 5 V dc | 
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 | Pins  | 18 V  | 
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| Main motor cable | 
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| LVPS/HVPS | 
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| Controller board | Verify ground at pin 5 for both the card and cable. | ||||||
| Warning: Do not | • | If these voltages are correct, then check the main motor cable for continuity. | |||||
| replace the operator | 
 | - | Remove the left side cover to access the connector on the motor. | ||||
| panel and controller | 
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 | - | If continuity exists on each wire, then replace the main motor gear drive which | |||||
| board at the same | 
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| time. Each card | 
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| 
 | - If continuity does not exist on one or more of the wires, then call the next level of | ||||||
| contains the printer | 
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| settings. When either | 
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| • | If these voltages are not correct, then see “Controller board connector pin values” | ||||||
| of these cards is new, | |||||||
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| it obtains the settings | 
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| from the other card. | 
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| Settings are lost when | 
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| both are new and | 
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| replaced at the same | 
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| time. | 
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