Sequence of operation The DC controller in the engine-control system controls the operational sequences of the printer. The table below describes durations and operations for each period of a print operation from when the printer is turned on until the motor stops rotating Normal sequence of operation Table 1-1 Sequence of operation Name Timing Purpose WAIT From the time the power switch is turned on or the door is closed until the printer is ready for a print operation. Brings the product to printable condition. The product performs the following during the operation:
● Detects the print cartridge STBY (standby) From the end of the WAIT or LSTR period until either a print command is sent or the power switch is turned off. Maintains the product in printable condition. INTR (initial rotation) From the time the print command is received until the temperature of the fuser unit reaches its targeted temperature. Starts up the high-voltage biases, the laser/scanner and the fuser unit for printing. PRINT From the end of the INTR period until the last sheet completes the fuser operation. Forms the image on the photosensitive drum based on the VIDEO signals from the formatter. Transfers and fuses the toner image to the paper.
LSTR (last rotation) From the end of the PRINT period until the main motor stops rotating. Moves the last printed sheet out of the product. The product enters the INTR period as the LSTR period is completed, if the formatter sends another print command. ENWW Basic operation 3