Canon Cat Reference Manual page 33

The Cat
will
not
recognize
a
disk created
on
a
Macintosh*
computer.
If
you
use a
Macintosh disk in
the
drive,
the
Cat
will
treat
it as blank and
recordyour
text on
it,wiping
out
all
Macintosh
ftles
and
information.
Disks
from
other
systems may also be
treated like Macintosh disks.
Playback
Errors
Defects in
the
disk or
the
disk drive
may make
it
hard
for
the Cat to
play
back the
text accurately. When errors of this
type occur, the Cat plays back the text replacing all
characters it
cannot read
with question marks (?).
If
the
Cat
has
difficulty
understanding
other information,
such
as
margins, indents, and
so
forth,
it
replaces this information
with
the
initial values
for
these features.
If
the
Cat
encounters
difficulty in playing back
a
disk,
it
beeps and makes every
effort
to
play
back
the
text
as
well
as
itcan. Afterthe
text
is
inmemory,
the
Catwill notletyou
re-record the text on the disk. Using
[DISK]
results
in
a
beep, and
nothing
else
happens. The IEXPLAIN] screen
will
say
that
your text
is
at
risk.
This prevents your disk drive
-
which may be the
source
of
the problem
-
from
recording
bad
information on the good disk, making things
worse.
In
other words, if
the
disk
is
OK
and the
drive
is
bad,
the Cat
will
not
damage
the text on the disk.
Automatic Timer for the DISK Command
A DISK
command
timer
begins
to run whenever the Cat
isn't
doing anything.
After five
minutes the
timer
runs out,
and,
if
the
text is dirty,
the
Cat automatically
attempts
to
record it. Any activity
at
all restarts
the
timer, whether
it's
typing,
erasing,
printing,
or
receiving text
from
an
outside
source.
The timer
can be adjusted
in
[SETUP].
Use the
Time
before
screen goes
dark
line
on the
Machine
Setup
screen.
If
the Cat successfully records
the text,
it
shuts
off
its
screen
to prevent
screen
burn. Screen
burn
is
like
sunbum
-
if you
leave one image
on
the screen too long it
is
bumed
into
the screen.
If
the
Cat is unable to record the
text
-
a
write-protected
disk,
for
example,
would prevent recording
-
the
screen
remains on to indicate
that
the text
is
still
dirty.
The
timer
starts
over
at
this
point. Every time
the
timer runs out,
the
Cat makes another
effort to record
the text.
If
the
textis
clean
orempty when
the
timerruns
out, the Cat
simply
tums the
screen
off without
activating the
DISK
command.
*
Macintosh
is
a trademark
licensed to
Apple
Computer,
Inc.