7) Solid Black Print; Solid Black Print; Solid Black On A Full Page - Olivetti d-color MF1600 Service Manual

6.5.3.(7) Solid Black Print

(7-1)

Solid black on a full page

Confirmation Items
(7-1-1) High-voltage contact condition
CH terminal
CH terminal
ID unit terminal
(7-1-2) High-voltage output condition
CH output
Y108500-4
Confirmation Tasks
By visual inspection, look down to check whether high-
voltage terminal of left side of ID unit that protrudes from
the equipment is normal.
Check whether the high-voltage terminal of high-voltage
board is in normal contact state. Open the left cover and
remove the high-voltage board, check whether terminal
is installed abnormally.
By visual inspection, check whether the high-voltage
terminals of ID unit are normally contacted with
contacting ASSY. (Please refer to Figure 7.3)
When high-voltage probe is used as maintenance tool,
please open the left cover and check the CH output
from solder side of high-voltage board by high-voltage
probe during printing.(High-voltage probe is not a usual
maintenance tool.)
Charge roller
Ground
Development roller
Figure 7.3
Service Manual
Action at NG
Replace the terminal
of equipment side
with a new one.
Reinstall the
terminal normally.
Replace the ID unit
or correct the high-
voltage terminals.
When trying to use a
new ID unit, please
be careful not to
break the fuse with
jig inside the ID
unit. (Please refer to
page 176)
Replace the high-
voltage board with a
new one.
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