Adjustment Of High-Voltage Transformer - Toshiba e-STUDIO206L Service Manual

6.8

Adjustment of High-Voltage Transformer

When replacing the high-voltage transformer, you must check each output adjustment of the main
charger bias, developer bias, transfer bias, transfer cleaning bias (positive), transfer cleaning bias
(negative) and separation bias.
6.8.1 Adjustment
[ 1 ] Preparation
Items to check Developer Bias
Process Unit Take the process unit out of the equipment, an then install the high-voltage transformer
jig to the unit.
High-Voltage Install the high-voltage transformer jig in the equipment.
Transformer Jig
Digital (+) terminal Connect with the
Tester black cable (thick
line) of the high-
voltage
transformer jig.
(–) terminal
Function
switch
Full-scale
(range)
Remarks Use a digital tester with an input resistance of 10 M (RMS value) or higher.
How to turn ON Attach the door switch jig and start with the adjustment mode [05] while the front cover
the power opened.
 P. 6-48 "[B]
Note
Connection for
developer bias
adjustment"
© 2011-2014 TOSHIBA TEC CORPORATION All rights reserved
Main Charger
Notes:
Connect the green cable of the high-voltage transformer jig to ground on the
equipment frame.
 P. 6-46 "[A] Installation of the high-voltage transformer jig".
Connect with the
red cable (thick
line) of the high-
voltage
transformer jig.
Connect with the black cable (thin line) of the high-voltage transformer jig.
1000 V
 P. 6-48 "[C]
Connection for
main charger
adjustment"
6 - 45
Transfer Bias,
Transfer Cleaning
Bias (positive),
Transfer Cleaning
Bias (negative)
Connect with the red
cable (thin line) of the
high-voltage
transformer jig.
DC
20 V
 P. 6-49 "[D]
Connection the transfer
bias, transfer cleaning
bias (positive) and
transfer cleaning bias
(negative) adjustment"
e-STUDIO206L/256/306/356/456/506 / 207L/257/307/357/457/507
Separation
Charger
Connect with the
gray cable of the
high-voltage
transformer jig.
 P. 6-49 "[E]
Connection for
separation
charger
adjustment"
SETTING / ADJUSTMENT
6