InfoPrint 4247 Z03 Maintenance Information page 208

Note the type and location of each screw. There are 4 self tapping screws and 3 threaded screws (including 2
standoffs).
Replace the Engine Board following the above instructions in reverse order, paying attention both to the rear
horizontal guides and the relevant bottom shield.
Note: When a new engine board spare part is installed, the printer after initialization automatically displays the
message "RUN T&D". You need to run T&D03—NVM RAM test to write the printer model (device ID) into
the nonvolatile memory on the new Engine Board.
1. Enter T&D in the Single Test Mode.
2. Run T&D03—NVM RAM test in Single Test Mode.
3. Power off the printer. At this point NVM has the Z03 device ID written into it and the Engine Board can
be used in normal operation.
A new engine board contains all adjustments stored in NVM as manufacturing default values. Therefore, it is
mandatory to run the following T&Ds that save adjustment values:
v T&D10—AFTA calibrate test
v T&D11—First line adjustment test
v T&D12—Bidirectional adjustment test
v T&D13—Tear-off line adjustment test
v T&D18—Paper path sensor test
Note: Use the Printer Configuration Printout to verify configuration settings.
Chapter 5. Removals, service checks and adjustments
208