Action Yes No
Step 4
a Make sure that the hard disk is properly installed.
b Check the hard disk for damage, and replace if necessary.
Does the problem remain?
Go to step 5. The problem is solved.
Step 5
Check the controller board pins for damage, and replace if necessary. See
“Controller board removal” on page 356.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Maintenance kit service check
Action Yes No
Warning—Potential Damage: Do not perform this step if the printer is
on.
a Replace the required maintenance kit.
b Reset the maintenance counter:
• For 300K, enter the Configuration menu, and then navigate to
Reset Maintenance counter > Reset 300K Maintenance Kit.
• For 600K, enter the Diagnostics menu, and then navigate to Reset
Maintenance counter > Reset 600K Maintenance Kit.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Printer hardware errors
• “111 errors” on page 147
• “12y errors” on page 148
• “13y errors” on page 153
• “153 errors” on page 156
• “16y errors” on page 157
• “171–182 errors” on page 163
• “189 errors” on page 164
• “19y errors” on page 166
• “600 errors” on page 180
• “685 errors” on page 181
• “Steps before starting the 9yy service checks” on page 183
• “900 errors” on page 185
• “911–963 errors” on page 190
7421
Diagnostic information
146
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