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
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