Blank Print - Toshiba e-STUDIO281c Service Handbook

9) Blank print

Cause/Section Step
High-voltage 1 Is the high-voltage transformer output
transformer defective?
(1st/2nd transfer
2 Are the connector of the high-voltage har-
roller and devel-
ness securely connected?
oper bias)
Is the harness open circuited?
Developer unit 3 Is the developer unit installed securely?
4 Do the developer sleeve and mixer
rotate?
5 Is the developer material properly trans-
ported?
6 Is there any magnetic brush phase error?
7 Is the doctor sleeve gap incorrect?
Drum 8 Is the drum rotating?
9 Is the drum grounded?
Transfer unit 10 Is the transfer belt in proper contact with
the drum?
11 Is the transport of the transfer belt nor-
mal?
12 Is the releasing movement of the transfer
belt cleaner is normal? (Does the cleaning
blade stay in contact?)
13 Is the 2nd transfer roller contacted and
released properly?
© 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
Fig. 5-9
Check items
5 - 123
Measures
Adjust the output and correct the circuit,
or replace the transformer.
Reconnect the harness securely.
Replace the high-voltage harness.
Check/correct the developer sleeve cou-
pling engaging.
Check/correct the developer drive sys-
tem.
Remove foreign matter from the devel-
oper material, if any.
Check the developer pole position.
Adjust the gap with the doctor-sleeve jig.
Check that the drum shaft is inserted.
Check the drum drive system.
Check the contact of the grounding plate.
Check if the contact releasing lever is at
releasing position. Check the installation
of the transfer belt.
Check the installation of the transfer belt
or transport mechanism.
Check the installation of the transfer belt
cleaning blade. Check the operation of
the transfer belt cleaner clutch.
Check the connection of the connector of
2nd transfer roller contact clutch and open
circuit of harness.
e-STUDIO281c/351c/451c
TROUBLESHOOTING
5