Error code Description Action
164.04 The motor (tray 4 feed) did not reach the required
speed.
See
“2 x 500-sheet tray 4 feed failure service
check” on page 161.
167.04 The motor (tray 3 transport) did not reach the
required speed.
See
“2 x 500-sheet tray 3 transport failure service
check” on page 162.
167.04 The motor (2500-sheet tray transport) did not reach
the required speed.
See
“2500-sheet tray transport failure service
check” on page 159.
168.04 The motor (tray 4 transport) did not reach the
required speed.
See
“2 x 500-sheet tray 4 transport failure service
check” on page 163.
2500-sheet tray feed failure service check
Actions Yes No
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset engine Service Error
Note: Do this every time a service error would occur to clear the error
and restore the engine settings.
Does the error remain?
Go to step 2. The problem is solved.
Step 2
a Check the 2500-sheet tray feed and transport motor belt for proper
tension, and adjust if necessary.
b Check the 2500-sheet tray feed and transport motor gear and belt for
wear or damage, and replace if necessary.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the 2500‑sheet tray feed, pick, and separator rollers for damage,
and replace if necessary. See
“2500-sheet tray paper feed assembly
removal” on page 456 and “2500-sheet tray pick assembly removal” on
page 456.
Note: If the page count is over 50K, then clean the rollers.
Does the problem remain?
Go to step 4. The problem is solved.
Step 4
Replace the motor (2500-sheet tray feed). See
“Motor (2500‑sheet tray
feed) removal” on page 461.
Does the problem remain?
Go to step 5. The problem is solved.
7421
Diagnostic information
158
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