Canon image Prograf iPF780 Series, Service Manual

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Chapter 1
1-44
3. Contact of Linear Scale/Carriage Shaft
Do not touch the linear scale and carriage shaft when the upper cover is opened, for maintenance.
Touching the linear scale and carriage shaft might cause abnormal movement of the carriage and produce defective prints.
F-1-39
Don't apply the grease to the linear scale and carriage shaft. It may cause abnormal operations and defective prints.
4. Replacing the maintenance cartridge
When the maintenance cartridge detects that the tank is full, the "Repl. Maint. C" error appears. In this case the maintenance cartridge must be replaced.
The printer will not operate until the error is cancelled.
Be careful that the waste ink does not splash when you remove the used maintenance cartridge from the printer.
MEMO:
This printer has an EEPROM in the maintenance cartridge and the maintenance cartridge status is controlled by the main controller PCB which reads and writes
the contents of that EEPROM. Therefore, initializing the counter information will not be needed when the maintenance cartridge is replaced.
5. Refilling the ink
After draining the ink from the printer according to the automatic or manual ink draining procedure for disassemble, reassemble, or transport/ship the printer, refill
the ink as soon as possible upon completion of those tasks.
Dried remaining ink on the surface of some components, may cause damage or abnormal operations.
[1] Linear Scale
[2] Carriage Shaft
[2]
[1]