© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
e-STUDIO350/352/353/450/452/453
ADJUSTMENT
3 - 29
3
3.6
Adjustment of High-Voltage Transformer
When replacing the high-voltage transformer, checking each output adjustment of main charger, devel-
oper bias, transfer charger and separation charger is needed.
3.6.1
Adjustment
[ 1 ] Preparation
Developer Bias
Main Charger
Transfer Charger
Separation
Charger
Developer unit
Disconnect the
connector.
Take off from the equipment. (Not used)
Cleaner unit
Take off the drum
and install the
cleaner unit in the
equipment.
Install the unit together with the current measuring jig in the
equipment.
Note:
Note:
Connect the green cable of the current measuring jig to
ground on the equipment frame. Refer to (a) Installation
of current measuring jig.
Developer unit connector
of the equipment
Not connected
Connect the jig detection connector with the developer unit
connector of the equipment.
Digital
Tester
(+) terminal
Connect in the hole
at the front side of
the developer unit.
Connect to the
main charger case
(between the case
and terminal).
Connect with the red cable of the current
measuring jig.
(–) terminal
Connect to the
machine frame (to
ground).
Connect with the white cable of the current measuring jig (to
ground).
Function switch
DC
AC
Full-scale
1,000 V
2 V
Remarks
Use a digital tester with an input resistance of 10 M. (RMS value) or higher.
How to turn ON the power Attach the door switch jig and press the front cover opening/closing switch while the
front cover is opened.
Remarks
Refer to (b) Con-
nection for devel-
oper bias
adjustment.
Refer to (c) Con-
nection for main
charger adjust-
ment.
Refer to (d) Connection for transfer/sepa-
ration charger adjustment.