Brother HL-4000CN Service Manual page 299

A
B
A B
ZONE
E3
ZONE
E4
SHEET 5
ZN A2
SHEET 2
ZN H4
+5VDC
(1.2 J2)
Represents a signal line connected vertically.
Represents a signal line connected horizontally.
Indicates that the signal line is connected in the
same function. In this example, the destination of the
signal line is described in the zone of E-3.
Indicates that the signal line is connected in the
same function. In this example, the source of the
signal line is described in the zone of A-4
Indicates that the signal line is connected in another
sheet (described at the lower right of BSD). In this
example, the destination of the signal line is
described in the CH8.5 zone of A-2.
Indicates that the signal line is connected in another
sheet (described at the lower right of BSD). In this
example, the source of the signal line is described in
the CH8.5 zone of H-4.
Represents the output power line of chain 1.
Indicates that the signal flow is from right to left,
opposite to the ordinary direction.
Represents a feedback signal.
Represents a mechanical link to a part.
Represents a mechanical drive signal and its flow
direction.
VI-2