Canon PIXMA MX340 Simplified Service Manual page 25

Whole Replacement is for heavy users since once Whole Replacement is performed, the printer
allows users to output approx.17, 000 pages. However, approx. 60 minutes is necessary to operate
Whole Replacement.
Partial Replacement
Whole Replacement
1) Partial replacement
Remove the Rear Cover Unit and Logic Board Ass'y, then replace the ink absorber.
(Time required: Approx. 13 min. including the operation check after replacement)
< How to perform the partial replacement >
i. Pull out the Rear Cover Unit, and remove 5 connectors from the Logic Board Ass'y, the
DCD board connector, 2 screws, 1 flexible cable, and 1 screw from the Side Cover R.
For your reference, see the red circles in the following photos below.
ii. Lifting the Logic Board Ass'y, pull out the ink absorbers (QC2-9603/QC2-9604) with a pair
of tweezers. For your reference, see the red circle in the following photo below (pull out A
first, and then B after sliding it to the location where absorber A was.).
Difficulties
Low (approx. 13 min.)
High (approx. 60 min.)
B A
(24/37)
Print yield after replacement
Approx. 10,000
Approx. 17,000
Absorbers for Partial Replacement