Fujitsu DL7400 Maintenance Manual page 85

(40) Carriage Unit and Stay Shaft replacement
Removal
1. Remove the upper cover.
2. Remove the printer mechanism assembly.
3. Release the upper guide F to the front.
4. Remove the SS gear, gear B.
5. Remove the stay bearing and the stay shaft.
7. Remove the SP belt while pressing the tension bracket.
8. Remove the carrier cable holder.
9. Remove the card guide from the carrier.
(If you don't have head gap jig don't remove upper angle.)
10. Remove the carrier unit
Removing print head and card guide is
necessary to remove carrier unit
without removing upper angle.
Carrier cable holder is behind the carriage.
Slide it to remove it.
Figure 4.57 Carriage Unit and Stay Shaft replacement
Installation
1. Install the Carriage Unit and Stay Shaft by reversing the removal procedure.
2. When insert the stay shaft, take care of the oil felt inside the carrier hole.
Refer to lubrication inspection.
The following adjustments are required:
- Print head gap adjustment (for upper angle).
(You may omit, when having not loosened the screw.)
- Card guide position adjustment
- TOF sensor's voltage adjustment
- Vertical Alignment (V-ALMNT) adjustment
- Top-of-forms adjustment (factory use)
- Skew detection value adjustment
Carrier cable holder
Slide it to remove it.
85
Note.
Don't remove the screws for upper
angle. Head gap jig is necessary to
fasten them.
Screws for upper angle