Canon GP215 Service Manual page 395

No.
1 Automatic Density Adjustment
Place a blank white sheet of
copy paper (A4/LTR or larger;
not for color copiers; but the
whitest of all used by the user)
on the copyboard glass. Then,
close the feeder or the copy-
board cover.
Press 'WHITE MEASURE' on
the screen to highlight; then,
press the OK key.
Place the Test Pattern as
shown on the copyboard glass,
and close the feeder the copy-
board cover.
Then, press 'DENSITY MEA-
SURE' to highlight, and press
the OK key.
• The scanner makes 13
scans.
After executing 'DENSITY
MEASURE', check to make
sure that the settings under 'A',
'B', and 'D' are as specified:
Insert
PD
200PWM
600PWM
If the settings are as specified,
press 'SET' to highlight; then,
press the OK key.
• The above ends PD auto-
matic density adjustment;
execute 200PWM density
automatic adjustment.
COPYRIGHT © 1996 CANON INC.
Work
The scanner makes a single scan.
Place the Test Pattern against the V marking in the rear
left of the copyboard glass. (If the sheet is not placed
correctly, adjustment may not be accurate.)
20 ≤ A ≤ 50
–40 ≤ B ≤ 40
0 ≤ D ≤ 8
20 ≤ A ≤ 60
–70 ≤ B ≤ 20
0 ≤ D ≤ 8
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
Remarks
Place the pattern print as follows:
Face down, i.e., the printed side at the bottom.
5. INSTALLATION
5–27