Second Transfer Roll Service Check - Lexmark 13P0150 - C 750dtn Color Laser Printer Service Manual

Second Transfer Roll Service Check

Note: The second transfer roll is 51.03 mm (2.009 inches) in circumference. Any print
quality problems such as lines that are spaced apart indicate you should check the
second transfer roll for damage, toner or foreign material.
Note: The second transfer roll is also part of the maintenance kit and should be replaced
when a "83 ITU Maintenance" message displays. Ask the customer if they have replaced
the second transfer roll recently.
Note: If any of the following problems occur go to the Print Quality Service Check
•
•
CAUTION: Make sure the printer is powered OFF before making any checks on the
second transfer roll or associated parts for personal safety and to prevent damage to the
printer.
Step Actions and Questions
1
Second Transfer Roll Assembly - Check the second transfer
roll for any signs of toner buildup, surface damage to the
roll, oil or other contaminants on the surface of the roll.
Do you see any problems with the second transfer roll?
2
Transfer Arms, Springs and associated hardware - Call your
next level of support. None of these parts are service
related parts.
Is there any problem see with the associated hardware?
3
Transfer High Voltage Power Supply, HV wiring and
contacts - Check the Second Transfer Cable (Transfer
HVPS contact I to the Second Transfer Roll Rear Arm
Contact) for correct installation.
Is the cable installed correctly?
4
Check the continuity of the Second Transfer Cable.
Is there continuity?
5
Check to make sure the ITU Bias Spring is not broken or
missing for the color(s) that is having Transfer problems.
Is the ITU Bias Spring broken, off or missing?
2-52
Service Manual
A problem with only one color
Light or very light print
5060-XXX
Yes
Replace the
"Second
Transfer Roll"
on page 4-41
Call your next
level support
Go to step 4
Replace the
FRU's in order:
1)
Transfer Roll"
on page 4-41
2)"HVPS
Transfer
Board" on
page
this does not
correct the
problem, go to
step 6.
Repair as
necessary
No
Go to Step 2
Go to Step 3
Install the
cable correctly
Replace the
Second
"Second Transfer Cable
4-12. If
Go to step 7