Sequence of operation The DC controller PCA controls the operating sequence, as described in the following table.
Table 1-1 Sequence of operation Period Duration Description Waiting From the time the power is turned on, the door is closed, or when the product exits Sleep mode until the product is ready for printing ● Heats the fuser sleeve in the fuser ● Pressurizes the pressure roller in the fuser ● Detects the print cartridges ● Moves the ITB and developing unit to the home position ● Cleans the ITB and secondary transfer roller Standby From the end of the waiting sequence or the last rotation until the formatter receives a print command or until the product is turned off ● The product is in the READY state. ● The product enters Sleep mode if the sleep command is received from the formatter.
● The product calibrates if it is time for an automatic calibration.
Initial rotation From the time the formatter receives a print command until the paper enters the paper path ● Activates the high-voltage power supply ● Prepares each laser/scanner unit ● Warms the fuser to the correct temperature Printing From the time the first sheet of paper enters the paper path until the last sheet has passed through the fuser ● Forms the image on the photosensitive drums ● Transfers the toner to the paper ● Fuses the toner image onto the paper Last rotation From the time the last sheet of paper exits the fuser until the motors stop rotating ● Moves the last printed sheet into the output bin ● Stops the high-voltage power supply ● Stops each laser/scanner unit ● If another print command is received, the product enters the initial rotation period when the last rotation is complete.
ENWW Basic operation 3