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Chapter 2
2-39
2.4.3 Carriage Relay PCB
2.4.3.1 Carriage PCB components
0031-2545
F-2-31
a) Latch ICs (IC401)
DI sensor reading control function
This function obtains the DI sensor value in the printhead and head rank for each color and sends it to the main controller PCB based on the control signals from
the main controller.
Environmental temperature reading control
This function sends the environmental temperature detected by the thermistor on the board based t the main controller PCB based on the control signals from the
main controller PCB.
Image data relay function
This function relays the image data from the main controller PCB to the printhead.
The function for processing image data is not supported.
b) Multi sensor control ICs (IC503 and IC504)
These ICs are used to generate the multi sensor LED control signal and adjust the gain.
IC401
IC504
IC503
Summary of Contents for iPF671
Page 1: ...Dec 17 2014 Service Manual iPF680 670 650 series iPF671 ...
Page 2: ......
Page 6: ......
Page 11: ...Chapter 1 PRODUCT DESCRIPTION ...
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Page 65: ...Chapter 2 TECHNICAL REFERENCE ...
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Page 125: ...Chapter 3 INSTALLATION ...
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Page 133: ...Chapter 4 DISASSEMBLY REASSEMBLY ...
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Page 192: ...Chapter 4 4 56 2 Shaft Cleaner 1 F 4 118 1 1 ...
Page 193: ...Chapter 4 4 57 3 Upper Cover Hinge Catch 1 Roll Cover Slide Guide 2 F 4 119 2 1 ...
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Page 197: ...Chapter 5 MAINTENANCE ...
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Page 206: ...Chapter 5 5 6 ...
Page 207: ...Chapter 6 TROUBLESHOOTING ...
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Page 253: ...Chapter 7 SERVICE MODE ...
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Page 310: ...Chapter 7 7 54 ...
Page 311: ...Dec 17 2014 ...
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