Service manual
ADJUSTMENT
2-15
2 ADJUSTMENT
*1 Condition for stopping copying after indication of
toner supply request
*2 Method for stopping copying after indication of
toner supply request
*3 Number of copies made before inhibition of copy-
ing when PM count is reached
*4 Electrode cleaning cycle (fixing temperature is
50
°
C
or lower when power is turned ON)
*5 Electrode cleaning cycle (after power is turned
ON)
*6 Destination switchover
*7 Image density selection
(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.
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
Mode 1-1 1-0
Stops after printing 1,500 copies
00
Stops after printing 3,000 copies
01
Stops after printing 4,000 copies
10
Stops after printing 5,000 copies
11
Mode 1-3 1-2
Stops after ejecting the paper
remaining in the machine
00
Stops after printing specified num-
ber of copies
01
Stops at the end of the current job
10
Does not stop
11
Mode 1-7 1-6 1-5
1,000 copies
000
2,000 copies
001
3,000 copies
010
4,000 copies
011
5,000 copies
100
1,000 copies
101
1,000 copies
110
1,000 copies
111
Mode 2-3 2-2 2-1
When power is tured ON
000
5,000 copies
001
10,000 copies
010
15,000 copies
011
20,000 copies
100
25,000 copies
101
30,000 copies
110
Not cleaned
111
Mode 2-5 2-4
10,000 copies
00
20,000 copies
01
30,000 copies
10
40,000 copies
11
Mode 4-3 4-2
Japan
00
Inch area
01
Metric area
10
Mode 5-1 5-0
Standard
00
Standard
-
10
01
Standard +10
10
Standard +20
11