Basic Sequence Of Operations - Canon LBP-860 Service Manual

Laser beam printer
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CHAPTER 2
E. Basic Sequence of Operations
'IXvo consrcutivc
prints on
I'uind
WwI
Front powr'r--ON unlil tlw fixing
[WAIT
roller trmpt~r~tr~re I-pachrs 172°C
pl-r""l)
l'ron~ the end ut I
STfN
(SI'ANI)~S~~
urllil i3 /I'I<NT signal IS input from
1 hc v1dro ro11trolh?r.
rnd
th? LSTR
/I'KNT
coIltroller
swltohed OFF
INTH
After Ihc /PKNT signal has been
(INl'lIAI,
input front the video controller
lIO'I'ATlONS
until thr wanner motor beconws
ptviod)
ready (about ti seconds)
PRINT
From the end of lhe INTH period
(Print)
until thr primary voltage [DC)
switrhes O F F
' ~
LSTK
After lhe primary voltage (DC)
(IAS1
turns OFF until the main motor
stops
ROTATIONS
period)
I
2-6
A4 paper
(Cassette feed)
Figure 2-6
Table 2-l
To warm up
put the printu in the standby
state and clean the transfer
ht. WAIT penod
iron)
or
th?
until
a
o r
t h e
pow-r
the drum in preparation for
transfer charging roller.
to
transfer the image the paper.
Purpose
the fLving roller to
charging roller.
To hold the fixing roller at
172°C to keep the printw
lo
prmt.
To stabilize the sensitivity of
printing and to clean the
To form an image on the
photosensitive drum according
the /VDO signal input from roller at 183°C.
the video controller and to
To deliver the final page of the
job and to clean the transfer
charging roller.
Remark
I
I
During this period, thr
printer checks the car-
i
(ridge is installed and
there is toner in it.
If the printer stays in the
standby state for five
the main motor for one
lo
second
fixing
roller, so that the
fixing roller will no1 be
deformed.
During this period, the
printer holds the fixing
If a /PRivf signal is inpu,
from the video controller,
the INlTL4L ROTATIONS
period be#ns
immediatelv.

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