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Disassembly and Assembly
Rev. A
3-3
2
WORK POINT
Do not touch or damage the head surface in the removed CR unit. Be careful with static
electricity in handling the printhead which has a head driver circuit directly attached.
Pay attention to the oil pad when removing the CR guide shaft from the CR unit, since it
tends to dislocate.
When installing the CR guide shaft to the printer mechanism unit, fit the PG adjust lever
to the cutout on the right frame assembly. (See Figure 3-27.)
REQUIRED ADJUSTMENT
After reinstalling the CR unit or parallelism adjust bushings, perform following adjustment:
PG adjustment
Bi-D adjustment
Uni-D adjustment
(See Chapter 4.)
If you replace the printhead along with the CR unit, be sure to write new head voltage
data to the EEPROM. (See Chapter 4.)
WORK POINT
When installing the timing belt to the CR unit, note 2 parts on the belt: flat part and tooth
part. Be sure to position the 2 parts carefully, as shown in Figure 3-28.
CR Motor Assembly Side
Timing Belt
Flat Part
Tooth Part
Figure 3-28. Timing Belt Installation