Print Drive Control - Canon S600 Service Manual

S600

1.2.1 Print drive control

Print driving is executed as follows:
a) The nozzles to be heated are selected in blocks.
The nozzles to be heated are selected according to logical blocks of 16 nozzles
divided from among the nozzle arrays.
In the case of the black nozzles, they are divided into 10 blocks.
The top-to-bottom sequence of the ten blocks will be BLE0 to BLE15. For example,
in the case of BLE0, it will be as shown in the figure below. Ten nozzles will be
selected in this case.
b) The nozzles to be heated are selected individually.
Among the 10 nozzles selected, the nozzles to be heated or not are selected. This is
determined by DATA0 to DADA.
c) Determining whether to heat a nozzle or not.
The final decision to heat a nozzle or not is decided with the heat enable signal
(HE1/HE2). Only the nozzles in the heat block selected by the heat enable signal
are heated.
BLE0
BLE1
•
•
BLE15
Signal line
Bk
Bk
EVEN
ODD
HE1 block
HE2 block
HE1 block
•
•
•
•
•
•
•
•
•
•
•
•
•
•
HE1 block
HE2 block
D0 D1
Figure 3-3 Print Driving
C1 M1 Y1
EVEN EVEN EVEN
D2 D2 D4
3-3
Part 3: Technical Reference
Y2 M2 C2
ODD ODD ODD
D6 D5 D3