I need to flush my print head. Magenta - no printing
and no nozzle pattern. Black - a few spots of nozzle pattern after
cleaning the print head plate but still no printing. These two carts
are new vendor other carts work OK.
Already tried to no effect:
Twice (once has worked for years, not this time):
1 Isopropyl drops on ink spikes (1 hour to overnight)
2 One normal
cleaning cycle.
Once: warm d-water/isopropyl/detergent solution in
place of alcohol above.
Once: Paper towel soak of print head plate in
50/50 d-water and Windex overnight. This helped the black print head go
from zero nozzle pattern to a few spots on the pattern. Still no
printing.
Cleaning solutions I have:
70% isopropyl (effective under
normal circumstances)
50/50 d-water/Windex
d-water/isopropyl/detergent
I have acquired a 10 ml syringe and tubing
and want to flush the heads. Question is how to do this safely without
damage. I know I am supposed to do it slowly with minimum pressure but
how slow is slow. What is the rate of flow? 1 ml per 10 seconds, 1 ml
per 30 seconds? Can any of these solutions be used HOT and which would
be most effective and safe for this purpose? The printer also had weird
carriage sounds/behavior. It kept moving slowly, quietly and
continuously even after shut off and shutdown. Only ended after I
turned off power strip overnight.

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