HP 2566C - Manual (Page 43)

2. Adjust the setting for print quality.
Move the lever one or two positions at a time toward the minimum
thickness setting, “A,” and then run sub-test 15 until you find
optimum print quality.
3. Run sub-test 15:
a. Enter the TEST mode.
Push the
[ test I
key to enter the TEST mode (two decimal points
will light up). Use either
[ fine adj .)
key to find sub-test 15 (a
pattern of horizontal and vertical lines). Press
[ enter
) to start the
test.
b. Examine the print.
Use the
[ form feed )
key to eject the page out of the powered
paper stacker. Examine the vertical lines. They should be straight.
If they are somewhat jagged, with the individual dots offset to the
right and left, this is called “dot slalom” (Figure 3-23). It signifies
that the print gap is too large (the higher the letter on the knob,
the wider the print gap). To decrease the gap, turn the forms
thickness knob one position towards the smaller letters. If the ink
is smudging on the paper, the print gap is too small; increase the
setting by turning the knob one position toward the larger letters.
y V
ONE PACE OF PRINT
GOOD SAD
COLUMN DOT POSITIONS
Figure 3-23. Dot Slalom
3-22 PREPARING THE PRINTER FOR OPERATION