Minolta Di551 Service Manual page 314

*1 Condition for stopping copying after indication of
toner supply request
Mode
Stops after printing 1,500 copies
Stops after printing 3,000 copies
Stops after printing 4,000 copies
Stops after printing 5,000 copies
*2 Method for stopping copying after indication of
toner supply request
Mode
Stops after ejecting the paper
remaining in the machine
Stops after printing specified num-
ber of copies
Stops at the end of the current job
Does not stop
*3 Number of copies made before inhibition of copy-
ing when PM count is reached
Mode
1,000 copies
2,000 copies
3,000 copies
4,000 copies
5,000 copies
1,000 copies
1,000 copies
1,000 copies
*4 Electrode cleaning cycle (fixing temperature is
50°C or lower when power is turned ON)
Mode
When power is tured ON
5,000 copies
10,000 copies
15,000 copies
20,000 copies
25,000 copies
30,000 copies
Not cleaned
*5 Electrode cleaning cycle (after power is turned
1-1 1-0
0 0
0 1
1 0
1 1
*6 Destination switchover
1-3 1-2
0 0
0 1
*7 Image density selection
1 0
1 1
1-7 1-6 1-5
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
2-3 2-2 2-1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
2-17
ON)
Mode
10,000 copies
20,000 copies
30,000 copies
40,000 copies
Mode
Japan
Inch area
Metric area
(toner concentration threshold)
These bits set the read level of the toner concen-
tration patch formed on the drum to determine
the toner concentration. Against image exces-
sive density, image blur, and toner scattering in
all tone areas, the setting should be made by
shifting the threshold of black color to the positive
side.
Against insufficient density in all tone areas, shift
to the negative side.
• Standard -10:The image becomes darker.
• Standard +10:The image becomes lighter.
• Standard +20:The image becomes far lighter.
Mode
Standard
Standard -10
Standard +10
Standard +20
Note: There are three DIP switches to change
the image density : 5-0/1 (toner concen-
tration threshold, 5- 2/3 (laser PWM), and
23-2/3 (toner density of developer).
The priority of order of these adjustments
are as follows :
(1) Laser PWM
(2) Toner density of developer
(3) Toner concentration threshold
ADJUSTMENT
2-5 2-4
0 0
0 1
1 0
1 1
4-3 4-2
0 0
0 1
1 0
5-1 5-0
0 0
0 1
1 0
1 1