HP color laserjet 2550 series Manuales De Servicio
Period
Duration
Purpose
Remarks
INTR (initial rotation)
From the time of the print
command until detection of
the HP1 (transfer-belt home-
position detection) signal for
the first color.
command until detection of
the HP1 (transfer-belt home-
position detection) signal for
the first color.
Prepares the photosensitive
drum for printing.
drum for printing.
PRINT (print)
From the end of the INTR
period until detection of the
transfer-belt home-position
signal for the secondary
transfer.
period until detection of the
transfer-belt home-position
signal for the secondary
transfer.
Forms the image on the
photosensitive drum and
transfers the toner image to
the transfer belt.
photosensitive drum and
transfers the toner image to
the transfer belt.
LSTR (last rotation)
From the end of the PRINT
period until the main motor
stops rotating.
period until the main motor
stops rotating.
Transfers the toner image
on the transfer belt to the
media and delivers the
printed media.
on the transfer belt to the
media and delivers the
printed media.
After LSTR, the printer
returns to STBY.
returns to STBY.
Table 4-1. Basic sequence of operation (continued)
ENWW
Engine control system
71