Canon BJ-30 User Guide - Page 116

Troubleshooting, Selecting, Paper Types, When printing in Epson LQ

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Problem White streaks or missing dots Cause Print head nozzles may be clogged with dust. The ink tank may be empty. BJ cartridge may be installed incorrectly. The print medium being used may not be acceptable. The resolution set in the printer driver may be 180 dpi (the print mode may be HS mode). The print head may be worn out. Solution Execute the quick cleaning of the print head (see page 79); then print a Nozzle pattern (see page 42). Repeat cleaning if necessary. If print quality is not recovered after executing the cleaning two or three times, execute the extensive cleaning procedure. Open the front cover and check the contents of the ink tank. If there is not any liquid ink in the ink tank, replace it with a new one. Make sure the BJ cartridge and/or ink tank are installed correctly. Use only print media specified in the Selecting Paper Types section on page 31. When printing in Epson LQ mode, printing at 180 dpi in HS mode may cause white streaks. To remedy, select the HQ mode with the printer's operator panel. The BJ cartridge may need to be replaced. Replace it with a new one. 108 Troubleshooting Chapter 7

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108
Troubleshooting
Chapter 7
Problem
Cause
Solution
White streaks or missing
Print head nozzles may be
Execute the quick cleaning of
dots
clogged with dust.
the print head (see page 79);
then print a Nozzle pattern
(see page 42). Repeat
cleaning if necessary. If print
quality is not recovered after
executing the cleaning two or
three times, execute the
extensive cleaning
procedure.
The ink tank may be empty.
Open the front cover and
check the contents of the ink
tank. If there is not any
liquid ink in the ink tank,
replace it with a new one.
BJ cartridge may be
Make sure the BJ cartridge
installed incorrectly.
and/or ink tank are installed
correctly.
The print medium being
Use only print media
used may not be acceptable.
specified in the
Selecting
Paper Types
section on
page 31.
The resolution set in the
When printing in Epson LQ
printer driver may be
mode, printing at 180 dpi in
180 dpi (the print mode
HS mode may cause white
may be HS mode).
streaks. To remedy, select
the HQ mode with the
printer’s operator panel.
The print head may be
The BJ cartridge may need
worn out.
to be replaced. Replace it
with a new one.