2-178 Service Manual
7510
980.01 HVPS controller communication error
2
Perform a POR.
Does the error continue when the power is turned off/
on?
Replace the 1TM,
3TM or the TTM
TTM controller card
assembly.
Go to “1X 500-
sheet drawer
(1TM)–1TM
controller card
assembly removal”
on page 4-252, “3X
500-sheet drawer
(3TM)–3TM
controller card
assembly removal”
on page 4-231 or
“2000-sheet dual
input (TTM)–TTM
controller card
assembly removal”
on page 4-205.
Go to step 3.
Problem solved.
3
Perform a POR.
Does the error continue when the power is turned off/
on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine card
assembly removal”
on page 4-77.
Problem solved.
Step Check Yes No
1 Check the developer roll HVPS card assembly and the
printer engine card assembly for proper connection.
Is the above component properly connected?
Go to step 2. Replace the
connection.
2
Perform a POR.
Does the error continue when the power is turned off/on?
Replace the
developer roll
HVPS card
assembly.
Go to “Developer
/ transfer roll
HVPS card
assembly
removal” on
page 4-103.
Go to step 3.
Problem solved.
3
Perform a POR.
Does the error continue when the power is turned off/on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine
card assembly
removal” on
page 4-77.
Problem solved.
Step Check Yes No
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