Canon i470D Series, Service Manual

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2. CLEANING MODE AND AMOUNT OF INK PURGED
To prevent printing problems due to bubbles, dust, or ink clogging, print head cleaning is performed before
the start of printing, except in the following cases:
- Cleaning on arrival:
Performed when the access cover is closed.
- Cleaning by dot count: Performed after ejection of paper.
- Manual cleaning / deep cleaning: Performed manually.
<Cleaning mode list>
Condition Details
Amount of ink
used (g)
Est. required time
(sec.)
On arrival of the printer
(both black and color) First cleaning after shipped from the
plant. 0.36 (black)
0.52 (color)
110
Dot count cleaning
(black/color)
When the specified number of dots are
printed from the previous black/color
cleaning. (Dots are counted by black
and color separately.)
Timer cleaning - 0
*1
(black only)
If 24 to 180 hours have elapsed since
the previous black cleaning till the start
of the next printing.
Timer cleaning - 1
*2
(black/color)
If 180 to 336 hours have elapsed since
the previous black/color cleaning till
the start of the next printing. (Time is
counted by black and color separately.)
Manual cleaning
(black/color/both)
- Via the operation panel (both black
and color)
- Via the printer driver (black, color, or
both selectable)
0.12 (black)
0.14 (color)
35 (black)
35 (color)
Timer cleaning - 2
(black/color)
If 336 to 1,080 hours have elapsed since
the previous black/color cleaning till
the start of the next printing.
0.36 (black)
0.28 (color) 50 (black)
55 (color)
Timer cleaning - 3
(both black and color)
If 1,080 to 2,160 hours have elapsed
since the previous black/color cleaning
till the start of the next printing.
0.75 (black)
0.28 (color)
75
Timer cleaning - 4
(both black and color)
If longer than 2,160 hours have elapsed
since the previous black/color cleaning
till the start of the next printing.
1.50 (black)
0.28 (color)
130
If the print head has not
been capped for 1 hour or
longer before power-on
(both black and color)
At ink tank replacement
(black/color)
0.24 (black)
0.52 (color)
80 (both black and
color)
45 (black)
45 (color)
At print head replacement
(both black and color) When the print head is removed and
installed. 0.36 (black)
0.52 (color)
110
Deep cleaning
(black/color/both)
- Via the operation panel (both black
and color)
- Via the printer driver (black, color, or
both selectable)
1.50 (black)
0.52 (color)
140 (both black and
color)
85 (black)
70 (color)
*1: When 24 to 60 hours have elapsed since the previous black cleaning, this cleaning is performed. However,
the cleaning will be conducted up to 5 times from the printer installation. After that, when 60 to 180 hours
have elapsed, the cleaning will be performed.
*2: The period of time from the previous cleaning is counted by black and color separately. For this reason, the
cleaning mode may differ for black or color.