EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
DISASSEMBLY/ASSEMBLY      Disassembling the Printer Mechanism 117
Confidential
4.5.9  PF Encoder Sensor
 Parts/Components need to be removed in advance
Document Cover/ASF Cover/Scanner Unit/Panel Unit/Upper Housing/Card Slot 
Cover/Lower Housing/Main Board Unit/Left Frame
 Removal procedure
1. Peel off the acetate tape (x1) from the PF Encoder Sensor.
2. Release the PF Encoder FFC from the connector (x1) of the PF Encoder 
Sensor.
3. Remove the screw (x1) that secures the PF Encoder Sensor, and remove the 
PF Encoder Sensor.
Figure 4-58.  Removing the PF Encoder Sensor
When installing the EJ Roller, pay attention to the following 
instructions.
  • Make sure that the rubber part of the EJ Roller does not 
contact with the hook of the Front Paper Guide.
  • Be cautious not to touch the rubber part of the EJ Roller.
  • Be sure to align the rib (x1) of the Front Paper Guide with 
the slit on the EJ Roller.
Figure 4-56.  Installing the EJ Roller
 When installing the Spur Gear 51.5, be sure to align the 
concave section of it with the convex section of the EJ Roller.
Figure 4-57.  Installing the Spur Gear 51.5
 Whenever the EJ Roller is removed/replaced, the required 
adjustments must be carried out.
  • Chapter 5 “ ADJUSTMENT” (p.141)
 After replacing the EJ roller, be sure to perform the required 
lubrication. 
  • Chapter 6 “ MAINTENANCE” (p.151)