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e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
8 - 309
8.5.10
Blank print
Fig.8-18
Cause/Section
Step
Check item
Measures
High-voltage
transformer
(1st/2nd
transfer roller
and developer
bias)
1
Is the high-voltage transformer output
defective?
Adjust the output and correct the
circuit, or replace the transformer.
2
Are the connector of the high-voltage
harness securely connected?
Is the harness open circuited?
Reconnect the harness securely.
Replace the high-voltage harness.
Developer unit
3
Is the developer unit installed
securely?
Check/correct the developer sleeve
coupling engaging.
4
Do the developer sleeve and mixer
rotate?
Check/correct the developer drive
system.
5
Is the developer unit filled up with the
developer material?
Check that the charger grid is not
dirty. (The developer material may be
reduced due to the carrier offset.)
6
Is the developer material properly
transported?
Remove foreign matter from the
developer material, if any.
7
Is there any magnetic brush phase
error?
Check the developer pole position.
8
Is the doctor sleeve gap incorrect?
Adjust the gap with the doctor-sleeve
jig.
Drum
9
Is the drum rotating?
Check that the drum shaft is inserted.
Check the drum drive system.
10
Is the drum grounded?
Check the contact of the grounding
plate.
Feeding direction