Adjustment Of Developer Unit; Adjustment Of The Doctor-Sleeve Gap - Toshiba DP4500 Service Handbook

2.6 Adjustment of Developer Unit

2.6.1 Adjustment of the doctor-sleeve gap

Tool to be used: Doctor-sleeve jig
(1) Take out the developer unit from the copier.
Remove the top cover and dispose the devel-
oper material ( Chapter 12.5 in the Service
Manual).
(2) Remove 2 screws to take off the developer
sleeve cover. Place the developer unit on a
flat surface.
(3) Loosen 4 screws fixing the doctor blade.
(4) Lift up the toner scattering prevention sheet
(urethane sheet), and insert the jig of the gauge
"0.45" into the gap between the developer sleeve
and doctor blade (front and rear).
(5) Tighten the screws while the doctor blade is
pressed against the doctor-sleeve jig lightly.
(6) Insert the jig of the gauge "0.40" into the gap
between the developer sleeve and doctor blade.
Confirm that the jig moves smoothly to the front
and rear sides, and the jig of the gauge "0.50"
cannot be inserted into the gap.
Note: Before adjusting or checking the gap, make
sure the mark on the developer sleeve is
facing the blade.
December 2000 © TOSHIBA TEC 2 - 27 DP4500/3500 ADJUSTMENT