Canon BJ-20 User Manual page 89

Incorrect Make sure the paper release lever is locked.
Paper
Feed
Make sure the paper in use meets the paper requirements (page 42).
Make sure the paper cover is closed.
Poor
Symptom
Print
Very light characters
Quality
Blurred characters
Irregular dot printing or dot missing The print head may be dirty. Clean the
The newly replaced BJ cartridge
does not print.
Dirty output
Incorrect Make sure the application program is using the correct printer driver to connect to
the BJ-20. If printing is done on letter-size paper with 6 lines/inch line spacing and
Printing
66 lines/page, set the DIP switch 2 to ON to enable the TextScale function.
Remedy
Make sure the HIGH SPEED indicator is
off and the printer set to the HQ mode.
Make sure the paper in use meets the
paper requirements (page 42).
head (page 21) 2 or 3 times. If the
problem persists, replace the BJ cartridge
with a new one.
Clean the print head (page 21).
Adjust the paper thickness adjustment dial
to the appropriate position (page 46).