Canon iPF5000 - imagePROGRAF Color Inkjet Printer, Service Manual

Page: 265 / 390

Chapter 4
4-57
4.3.18 PCBs
0012-6407
iPF5000 / iPF5100
Do not replace the main controller PCB and maintenance cartridge relay PCB(ROM board) at the same time.
These PCBs store important data such as settings and carriage drive time. Before replacement of enther PCB, the data stored in it is move to the other PCB through
internal communication so that it can be taken over to the new PCB automatically. This is the reason whey the two PCBs should not be replaced at the same time.
If you want to replace both PCBs at the same time, first carry out the procedure "a" and then carry out the procedure "b".
After replacing whth the maintemance controller PCB or maintenance cartridge relay PCB which are supplied as service parts, check that the firmware to the latest
version.
a) Removing the main controller PCB
1) To remove the main controller PCB, open the top cover and remove the roll feed unit, left circle cover, tank cover, left cover, lower rear cover, lower rear left
cover and left rear cover.
See DISASSEMBLY/REASSEMBLY > Points to note on Disassembly and Reassembly > External Covers.
2) Remove all connectors from the main controller PCB.
3) Remove two coin screws[1], interface cover[2] and screw[3] in this order.
F-4-142
4) Remove the ten screws[4] and free the harness from harness guide[5] to remove the main controller PCB[1].
F-4-143
[1] [2]
[3]
[4]
[5]
[1]
[4]
[4]