![](/images/new-backgrounds/1319670/319670145x1.webp)
Basic Sequence of Operation
The Formatter PCA and the DC Controller PCA share information during printer operation. The DC
Table |
| Printer Timing |
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Period |
| Timing | Purpose |
WAIT | From when the paper is inserted to the end of Main | Clear the drum surface potential and clean the | |
| Motor initial rotation. | Transfer Roller. | |
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STBY (standby) | From the end of the WAIT or the LSTR period until | Maintain the printer in ready state. | |
| the input of the PRNT signal from the Formatter. Or |
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| from the end of the LSTR period until power OFF. |
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INTR (initial | From the input of the PRNT signal from the | Stabilize the photosensitive drum sensitivity in | |
rotation) | Formatter until the laser diode intensity has been | preparation for printing. Also clean the Transfer | |
| stabilized. | Roller. | |
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PRNT | From the end of initial rotation until the Scanner | Form images on the photosensitive drum based on | |
| Motor stops. | the /VDO signal from the Formatter and transfer the | |
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| image to paper. |
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LSTR (last | From the primary voltage (dc) OFF until the Main | Deliver the last sheet of paper. Also clean the | |
rotation) | Motor stops. | Transfer Roller. | |
| If another PRNT signal is sent from the Formatter, |
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| the printer returns to the INTR period. If not, it |
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| returns to the STBY period. |
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Refer to Timing Diagram on the next page
Functional Overview 5 - 19