Faint Image (Immediately After Equipment Installation) - Toshiba e-STUDIO2330C Service Manual

26.5.30 Faint image (immediately after equipment installation)

* Checking is easier with a halftone (Y) test chart.
Cause/Section Step
Transfer belt unit 1
(TBU)
2
Process unit 3
(EPU)
4
Laser optical unit 5
6
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
Density on the equipment front side is extremely low or there is a white void.
Fig. 26-31
Check items
Are the drum and the transfer belt
contacted?
TBU tilt angle adjustment
Is the developer material fully mixed?
Is the contact between the drum and
developer material proper?
Is there foreign matter or dust on the slit
glass?
Is the problem resolved if you replace the
laser optical unit?
26 - 158
Measures
Contact and release the transfer belt unit
several times with the TBU lifting lever.
Check that the 1st transfer roller is rotated
smoothly upward and downward.
For the details, see the procedure below.
Rotate the TBU tilt-adjustment screw
counterclockwise.
Check the image every time you rotate
the screw. Then adjust the tilt angle at the
smallest number of rotations that can
resolve the phenomenon.
* Maximum 3 rotations
Replace the drive gears of the developer
drive unit, developer sleeve and mixer.
Check the doctor-to-sleeve gap and pole
position.
Clean the slit glass.
Replace the laser optical unit.
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