Laser Driver Circuit - Canon LBP-CX Series Service Manual

c. laser driver circuit
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PSIZE1 14 "'
05
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PSIZE2 13 06
:g.
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PSIZE3 12
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VOO
J202-25
Buffer 1
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• J202-26
>
(IC209)
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H. sync
From beam) J203
generator
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(See
sensor
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fig. 3-54)
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CSENS1
J
J209-1
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NANO
J209-3
Gate
CSENS2 )
I
osc
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L_
5
i - - - -
1
-
3
.. PB4
VIDEO 11
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36
35
38
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8
e
ANl 35 LSRTH
u
:E
PF5 52
PSiZE1
PF6 53 P$iZE2
P06 61
APCS
- - - 62 VMSK
P07
10
17
20
19
+5V
+5V
A224
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J;.204-4
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+24V
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IJ204-1 )
+5V
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IJ204-5
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0210,0211
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M
N
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E
B
8
2,3,4
PIC
IC218
J204-6 LO
J204-2
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LSRHO
J204-3
I
LSRTH
IC216
I
PO
Amplifier
,___ _ _ ~ J204-7
J204·8'
Print density adjustment
~
I
-----0-~controller
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Figure 3-48 Laser driver circuit
COPYRIGHT
©
BY CANON lllC. CANON LBP-CX SERIES REV.2 JULY 1985 PRINTED IN JAPAN (IMPRIME AU JAPONI
...
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. .
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3-39