Image Quality
Xerox Internal Use Only Phaser 7100 Service Manual 3-23
3. For color, switch the Imaging Unit (Y/ M/ C).
Does the problematic image appear in the same
color as it did so far?
Go to step 4. Replace the Imaging
Unit for the color that
caused the problem
(REP 6.0 Imaging Unit
(Y/ M/ C/ K) on
page 4-121).
4. Check the Developer Unit installation.
Is the Developer Housing Assembly (Y/ M/ C/ K)
installed properly, with no contamination at the
high voltage terminal?
Go to step 5. Clean the high voltage
terminal.
Reinstall the Developer
Housing Assembly
(REP 8.1 Developer
Housing Assembly (Y/
M/ C/ K) on
page 4-137).
5. Check the Developer Unit.
Is the Developer Housing Assembly (Y/ M/ C/ K)
normal, without any contamination, damage, or
wear and tear?
Go to step 6. Replace the Developer
Housing Assembly
(REP 8.1 Developer
Housing Assembly (Y/
M/ C/ K) on
page 4-137).
6. Check the HVPS1 PWB connector.
Is the connector seated securely?
Go to step 7. Connect the wiring
harness connector.
7. Check the Transfer Roller (2nd BTR) installation.
Is the Transfer Roller installed properly?
Go to step 8. Reinstall the Transfer
Roller (REP 4.10
Transfer Roller (2nd
BTR Unit) on
page 4-108).
8. Check the Intermediate Transfer Belt.
Is the IBT Unit normal, without contamination,
damage, or wear and tear?
Go to step 9. Replace the IBT Unit
(REP 9.10 IBT Unit on
page 4-177).
9. Check the IBT Unit.
Is the high voltage terminal of the IBT Unit free
from contamination and it is in proper contact
with the Spring?
Go to step 10. Clean the high voltage
terminal.
Reinstall the IBT Unit
(REP 9.10 IBT Unit on
page 4-177).
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No