Service manual

EPSON Stylus &2/25 1520
Rev. A
3-2
6
; After removing the CR unit, do not touch and damage the heads. Protect the heads from static
electricity, because the head drive circuit is directly attached to the head board.
; Pay attention to the oil pad when removing the CR guide shaft from the CR unit. It tends to
dislocate.
; When installing the CR guide shaft to the printer mechanism unit, be sure to fit the platen gap
adjust lever to the right frame assembly. (Refer to the figure below.)
; Perform platen gap adjustment, Bi-directional adjustment, and Uni-directional adjustment after
installing the CR unit and parallelism adjust bushings. (Refer to Chapter 4.)
; If the printheads are replaced along with the CR unit, be sure to write head data to the EEPROM.
(Refer to Chapter 4.)
; When engaging the timing belt to the CR unit, note 2 parts of the belt: flat part and tooth part. Be
sure to position the 2 parts of the timing belt as shown in the figure below.
WORK POINT
REQUIRED ADJUSTMENT
WORK POINT
CR Motor Assembly Side
Timing Belt
Flat
CR Assembly Side
Figure 3-23. Timing Belt Installation