204 ZXP Series 7 Card Printer Service Manual P1036102-007
Replacement Procedures for Factory Installed Options
Procedures: MIFARE Contact Encoder PCBA
Step 4. With a TORX T10 driver, remove the screw holding the encoder module
PCBA in place (arrow below).
Step 5. Carefully unplug the three connectors (circled below).
Step 6. Remove the encoder module PCBA, and set it aside.