Cleaning Mode And Suction Amount - Canon i550 Service Manual

2. Cleaning Mode and Suction Amount

Print head cleaning is performed effectively and efficiently depending on conditions in order to prevent print
errors caused by bubble, dust, or ink clogging.
Cleaning is performed before starting to print except at the following timing:
Dot count suction: Performed after paper ejection
Manual cleaning/refreshing: Performed during operation
Unit delivery: Performed when access cover is closed
Table 2-1 Cleaning Mode List (i550/i850)
Condition
Manual cleaning
Refreshing
Timer suction
Long timer suction I
Long timer suction II
Long timer suction III
Long timer suction IV
Dot count suction
When replacing print head
When replacing ink tank
At delivery or during first
head position adjustment
Uncapped when Soft ON
Table 2-2 Cleaning Mode List (i950)
Condition
Manual cleaning
Refreshing
120 hour timer suction
480 hour timer suction
Dot count suction
When replacing print head
When replacing ink tank
At delivery
Uncapped when Soft ON
After hardware power ON
(If time is not checked)
Cap open
(When cap has been open
for 30 minutes or more)
1
* Suction amount is the total for 6 colors
Panel operation and printer driver operation
Printer driver operation
If 24 to 336 hours have elapsed since previous suction (BK).
If 120 to 336 hours have elapsed since previous suction.
If 336 hours or more have elapsed since previous suction.
If 1080 hours or more have elapsed since previous suction.
If 2160 hours or more have elapsed since previous suction.
If 4320 hours or more have elapsed since previous suction.
When prescribed dot count since the last suction is reached
When print head is removed/installed
Ink sensor detects that ink is present in the ink tank
That is the state changed from no ink in the ink tank
Suction when head is first installed after factory shipment
When capping was not performed properly during last power
off
Panel operation and printer driver operation
Printer driver operation
If 120 to 480 hours have elapsed since previous suction.
If 480 hours or more have elapsed since previous suction.
When prescribed dot count since the last suction is reached
When print head is removed/installed
Ink sensor detects that ink is present in the ink tank
That is the state changed from no ink in the ink tank
Suction when head is first installed after factory shipment
When capping was not performed properly during last power
off
Standalone test print etc.
When uncapped for more than 30 minutes during printing or
in standby
2 - 2
Details
Details
Suction
amount
BK/CL (g)
0.14/0.36
1.58/0.72
0.14/0.36
0.45/0.72
0.78/0.72
1.58/0.72
1.58/0.72
0.14/0.36
0.45/1.08
1.58/0.72
0.45/1.08
0.30/0.72
Suction
amount
BK/CL (g)
0.89
2.68
0.89
1.34
1.1
2.68
1.34
2.68
2.68
1.34
0.89