HP CP4525DN Laser CC494A#ABA manual 1Sequence of operation, Period Duration Description

Sequence of operation

The DC controller PCA controls the operating sequence, as described in the following table.

Table 1-1Sequence 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	●	Activates the high-voltage power
	print command until the paper enters the		supply
	paper path	●	Prepares each laser/scanner unit
		●	Warms the fuser to the correct
			temperature
Printing	From the time the first sheet of paper	●	Forms the image on the
	enters the paper path until the last sheet		photosensitive drums
	has passed through the fuser	●	Transfers the toner to the paper
		●	Fuses the toner image onto the
			paper
Last rotation	From the time the last sheet of paper	●	Moves the last printed sheet into the
	exits the fuser until the motors stop		output bin
	rotating	●	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