Period Purpose Remarks
INTR (Initial Rotation Period)
After the pickup command has
been sent from the formatter
until the media reaches the top-
of-page sensor (PS801).
To stabilize the photosensitive
drum sensitivity in preparation
for printing. Also to clean the
primary charging roller.
PRINT (Print) From the end of
the initial rotation until the
primary voltage goes OFF.
To form images on the
photosensitive drum based on
the VIDEO signals (/VDO, VDO)
sent from the formatter and to
transfer the toner image onto
the media.
LSTR (Last Rotation Period)
After the primary voltage goes
OFF until the main motor stops
rotating.
To deliver the last page. Also to
clean the primary charging
roller.
When the pickup command is
sent from the video controller,
the printer enters the INTR
period immediately after the end
of the LSTR period.
48 Chapter 4 Operational overview ENWW
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