3–32 Troubleshooting
Hidden Diagnostics Menu
The Hidden Diagnostics Menu consists of operational checks and
calibrations made at the operator control panel. These checks are for the use
of authorized factory and field service personnel only.
Accessing the Hidden Diagnostics Menu
To access this menu, the printer must be on and loaded with paper. Follow
these steps:
1. Press on LINE to place the printer off–line.
2. Open the printer cover.
NOTE: The button–pressing sequences in the next step must be done within
one second of each other to unlock the hidden menu.
3. Press UP and DOWN simultaneously, then immediately press NEXT
and PREV simultaneously. The display shows “Hidden/Burn In.”
4. Refer to the Hidden Diagnostics Menu diagram (page 3–34). The
diagram shows the menu structure and summarizes the switch sequences
used to select the various tests.
Hidden Diagnostics Menu options
Burn–In A special test pattern that exercises the hammer bank to a high
degree. Burn–in tests will not overheat the printer, but they do stress the
equipment. Use these tests sparingly and carefully. You can run the burn–in
pattern three ways:
• Plot the test pattern for 7 (± 1) seconds, rest for 7 (± 1) seconds,
repeated continuously. This duty cycle tests the shuttle.
• Plot the test pattern for 20 (± 3) minutes, idle for 20 (± 3) minutes.
This test thermally cycles various parts of the printer.
• “Always On” is continuous plotting. This test provides a general
burn–in of the printer.
Error Print Prints a list of the 20 most recent errors. The error log printout
includes the part number and version level of all modules in the system at the
To Next Page
Loading...
