Operating sequence A microprocessor on the DC controller PCA controls the product operating sequence. The following table describes the basic operating sequence from when the product power is turned on until the final printed page is delivered to an output bin. NOTE: The product takes about two minutes and twenty seconds to initialize. Table 1-1 Product operating sequence Period Duration Operation WAIT From the time the power is turned on, the door is closed or Sleep mode is released until the product gets ready for a print operation. ● Brings the product to standby condition. ● Pressurizes the fuser pressure roller. ● Detects the print cartridge.
STBY (Standby) From the end of WAIT or LSTR period until either the print command is received from the formatter or the power button is turned off. ● Maintains the product in printable condition. ● Puts the product in Sleep mode when the formatter sends a sleep command. INTR (Initial rotation period) From the time the print command is received from the formatter until the media is picked up. Starts up each high-voltage bias, laser/scanner unit, and fuser for printing. PRINT From the end of INTR period until the last paper completes the fixing operation. ● Forms the image on the photosensitive drum based on the signals from the formatter.
● Transfers and fuses the toner image to the print media. LSTR (Last rotation period) From the end of PRINT period until the motors stop rotating. ● Moves the last printed sheet out of the product. ● Stops the laser/scanner unit operation and high-voltage biases. The product enters the INTR period as soon as the LSTR period is completed, if the formatter sends another print command. ENWW Basic operation 7