Canon MultiPASS C755, User Manual

Page: 146 / 218

12-10
Maintenance Chapter 12
Cleaning the BJ Cartridge Print Head
If your printouts become faint or streaked, or if their quality otherwise deteriorates, print
the nozzle check pattern to see if the print head nozzles are operating properly
(
1
p. 12-9). If the pattern is broken, missing, or a specific color is not printed, clean the
BJ cartridge print head.
There are two print head cleaning procedures: normal (
HEAD CLEANING
setting) and
deep (
HEAD REFRESHING
setting). Always perform normal print head cleaning first,
and if this does not correct the problem, perform deep print head cleaning.
Refer to the flow chart (
1
p. 12-8) for the correct order of testing and cleaning the BJ
cartridge print head.
n
• To maintain the best possible print quality, clean the BJ cartridge print head from time to
time.
• Cleaning the print head consumes a small amount of ink. Cleaning too often reduces the
amount of ink in the BJ tanks.
• If your printing is faint, you can often correct the problem by adjusting the print settings.
(
1
MultiPASS Suite User’s Guide)
Follow this procedure to clean the BJ cartridge print head:
1
Press .
2
Press .
3
Use or to select the cleaning
Ex:
procedure.
• You can select from the following:
–
HEAD CLEANING
(normal print head cleaning)
–
HEAD REFRESHING
(deep print head cleaning)
4
Press .
• The MultiPASS cleans the print head.
n
• After cleaning, print the nozzle check pattern to check if cleaning corrected the problem.
(
1
p. 12-9)
• If cleaning does not improve print quality, replace the BJ cartridge (
1
p. 12-11) or
tank(s). (
1
p. 12-17)
Set
HEAD CLEANING
02
08
NOZZLE CHECK
10
Cleaning
Function