2-198 Service Manual
7510
980.00 Communication error with 1TM, 3TM, or TTM assembly
980.01 HVPS controller communication error
Step Check Yes No
1 Check the 1TM, 2TM or TTM controller 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 1TM,
3TM or the TTM
TTM controller card
assembly.
Go to “1X 500-
sheet drawer
(1TM)—1TM
controller card
assembly removal”
on page 4-259, “3X
500-sheet drawer
(3TM)—3TM
controller card
assembly removal”
on page 4-238 or
“2000-sheet dual
input (TTM)—TTM
controller card
assembly removal”
on page 4-212.
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 4-88.
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 4-112.
Go to step 3.
Problem solved.