Error Codes 38 Through 47 - Mc Board Cpu Internal Error; Error Codes 48 Through 4D - Controller Comm. Fail - Printronix L5535 Maintenance Manual

Chapter 4
Status Messages And Error Messages
b. Measure the voltage with the printer powered up, which should be
c. If the voltage is 24V and the fan does not turn, turn off power to the
2. Check the head thermal sensor (HTS).
a. Turn off power to the printer and allow the LED to cool completely (to
b. Disconnect harness connector CN12 from the MC board.
c. Measure the resistance between pin 1 of connector CN12 on the MC
d. If the resistance is OK, go to step 3. If the resistance is not OK, check
3. Replace the MC board.
Error Codes 38 through 47 — MC Board CPU Internal
Error
1. Confirm that the ROM on the MC board is seated properly on the board.
2. If the problem persists, replace the ROM on the MC board.
3. If the problem persists, replace the MC board.
Error Codes 48 through 4D — Controller Comm. Fail
1. Check the controller interface cable.
I–156
about 24V.
printer and check the continuity of the harness between connector
CN15 on the MC board and JM15102.
If the continuity is OK, replace the HCF.
about 25° C or below).
board, and pin 2 of connector CN12. The resistance should be about
20 KΩ.
the continuity of the harness between connector CN12 on the MC
board and JM12101.
If the continuity is OK, replace the HTS.
CHECKLIST: ROM NOT SEATED PROPERLY
ROM ON MC BOARD
MC BOARD
CHECKLIST: CONTROLLER INTERFACE CABLE
MC BOARD