Diagnostics and troubleshooting
197
Step 1
Perform a POR.
Does the problem remain?
Step 2
Check the cables on the printhead and on the JMIRR1 and JPH1
connectors on the controller board for proper connection.
Are the cables properly connected?
The printhead error was detected before the
motor was turned on.
See
“Printhead service check” on page 197
.
The printhead power was off when the laser servo
started.
The printhead error (no first Hysnc) was detected.
The printhead error (lost first Hysnc) was detected.
The printhead error (lost first Hysnc) was detected
during servo.
The printhead error (mirror motor lost lock) was
detected.
The printhead error (mirror motor no first lock) was
detected.
The printhead error (mirror motor never stabilized)
was detected.
The printhead NVRAM read failure occurred.
The printhead NVRAM values were incorrect.
The printhead timing measurement error was
detected.
The video cable was unplugged.
The printhead timing reading error was detected.
The printhead NVRAM checksum mismatch
occurred.