Canon MultiPASS C5000 Service Manual page 89

5.2 BJ Head Driver Block Diagram
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Stores the printing data (HDATA) transferred from the control board at HCLOCK's timing.
1261136 bit latch
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Latches the printing data (HDATA) converted by the 1281136 bit shift resistor
After the BENB (Block enable) 0, 1, and 2 code signals are input, the specified heat timing
signal is output. The heat timing signal is divided into eighth.
Heater (1 to 126 and I to 136)
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The heater generates the bubbles required for the nozzles to eject the ink. The heater heats
the bubble jet nozzles. Heating is executed with the timing signal produced by the block
enable decoder and the even nozzle heat enable (EvenENB), odd nozzle heat enable
Sub heater
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This heater maintains the optimum conditions in the nozzle for ejcctingink
Temperature control heater
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This heater controls the head temperature to stabilize the ink ejecting amount
Rank resistor
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To
heater characteristics is classified into 13 types which are identified by changing the rank
Head temperature sensor
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Cartridge ID
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With the ID0 and ID1 combinations, the B.J cnrtridgt? type (color or black or photo) is
recognized.
Chapter 2: Technical Reference
2-21
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