Canon 7816A010AA Vereinfachtes Servicehandbuch - Seite 14

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11
B
Vertical uneven print
density and lines.
<Supplement>
Uneven print density due
to the scan complement
control** performed at
print data break-up.
12
C
Horizontal uneven print
density and lines at the
trailing edge of paper
<Supplement>
Problem appears within
about 30mm from the
trailing edge.
13
Horizontal lines and
uneven print density due
to LF roller feeding at
small pitch.
<Supplement>
Lines and uneven print
density of 1 to 2mm
pitches.
14
Horizontal white lines
and gaps due to LF
roller.
*Rank
A: The phenomenon may occur at a relatively high occurrence ratio. (Caution needed)
B: The phenomenon may occur in specific conditions, however the occurrence ratio is expected to be considerably low in the actual usage.
C: As the phenomenon is hard to be recognized by general users, it is expected to cause no claims from the users.
**Scan complement control
Refer to 2) New function, 1. HAPS system below.
-When a low specification
When scan overflow control fails, the scan
performance computer is used
complement control** is performed at the
-When other applications are
same position repeatedly, thereby uneven
running
print density and lines appear. (While this
-ROM version 1.00
phenomenon occurs, the print s peed
<Supplement>
slows considerably.)
Among special papers with large
<Permanent countermeasure>
amount of print pattern data.
Rectified in ROM version 1.30 onwards.
Note: Comparably remarkable in
the specific print pattern (a
uniform pattern using single
color)
-When borderless printing is
When the paper end comes off the pinch
conducted.
roller, the paper is printed without being
-When printing is conducted in
held, preventing the ink drops from being
"Full" to the printable area's
ejected in the correct positions, resulting
trailing edge.
in unevenness.
Note: Comparably remarkable in
Note: The problem is more severe than
the specific print pattern (a
that of the S200.
uniform pattern using single
color)
Special paper / standard mode.
As the print media slightly slips against
<Supplement>
the feeding amount by the LF roller,
Paper of PR series, SP101.
printed areas overlap, causing the
Note: Comparably remarkable in
problem.
the specific print pattern (flesh
tones and a uniform pattern
using a single color)
When monochrome printing is
The print media is slightly overfed against
conducted to the plain paper in
the feeding amount of the LF roller,
the standard mode.
causing white lines (missing) to appear.
<Supplement>
<Permanent countermeasure>
Note: Comparably remarkable in
The printer driver has been upgraded.
the specific print pattern (black
halftone graphic pattern).
1. Close the other
applications.
2. Upgrade the ROM
from 1.00 to 1.30
onwards.
Recommend printing in
the print quality
assurance area.
Change the print quality
from standard to high
mode.
1. Change the print
quality from standard to
high mode.
2. Upgrade the printer
driver.
Win98/Me: 7.31 onwards
Win2000/XP: 1.61
onwards
MacOS8.6 and later: 4.11
onwards
14
-Lines/uneven print density at the
top edge of paper
-Cannot print properly
-Cannot print to the bottom edge
of paper
-Lines and uneven print density
appear in the trailing edge of
paper
-Cannot print properly
-Lines and uneven print density
(on flesh tones and background)
-Cannot print properly
-Print head path lines and
uneven colors
-Cannot print properly