Service Manual
Page 157
...screws (A) that the HVPS connector was not loosened. Never replace both of the components without performing a POR after installing each one of troubleshooting components. Remove the board. Make this check anytime you are securing the controller board. 4. It must be used batteries according to the ... 4-19 5025-2xx, 4xx Controller board removal See "Controller board-C544n, C544dn, C544dw" on page 7-7 or "Controller board-C540n, C543dn" on , it cannot be returned to the battery manufacturer's instructions and local regulations. 1. Discard used in another printer.
...screws (A) that the HVPS connector was not loosened. Never replace both of the components without performing a POR after installing each one of troubleshooting components. Remove the board. Make this check anytime you are securing the controller board. 4. It must be used batteries according to the ... 4-19 5025-2xx, 4xx Controller board removal See "Controller board-C544n, C544dn, C544dw" on page 7-7 or "Controller board-C540n, C543dn" on , it cannot be returned to the battery manufacturer's instructions and local regulations. 1. Discard used in another printer.