Error Message:

HEAD: newline error, check drum encoder and LC-BP cable (OR) focus error, check LC-BP cable

Applies to:

• Thermal

Service Information:

The focus servo requires the NEWLINE signal from the MPE. This signal is in the DB9 connector between the MPE backplane and the head. If this signal is not detected during a plot, this error will be generated.

Note that this error is also generated if focus_mode is not 1 or 2 and "focus on" is specified without imaging. Without the drum spinning and PLL on and locked only focus modes 1 and 2 can be used.

It is possible for this error to be reported because of a system pressure problem. If the system pressure drops below the threshold for a short period of time, the drum will be stopped but the error may not be reported properly. As of drum module V1.32 (check the "list modules" command, if that command doesn't exist, your firmware is too old), then the statement "WARNING: Low air pressure detected!" will be displayed a few seconds prior to the error being reported. If that message was displayed, then the system pressure should be checked. Make sure the supply has enough volume, and also check for other devices using the same air line.

Operator Action:

Call service.

Cause:

• Newline signal not received by head.
• System pressure problems.

See Also:

• NVS: hdm fmode
• Command: focus