3.3.2 Removing and installing tap screwsThe printer uses tap screws to fasten the printer unit and base. The removed tapscrews will have residue from the mold in which the internal thread was made. Sincethe residue may crush the screw threads, clean off the residue from the tap screwsbefore re-installing or use new tap screws.3.3.3 Installing and removing the timing slit stripThe timing slit strip is fixed in place and held taut by the torsion spring. When youinstall or remove the timing slit strip, you have to stretch the torsion spring. Becareful not to pull the torsion spring too much in the direction of the arrow or you willnot be able to properly install the timing slit strip the next time.Therefore, when installing or removing the timing slit strip, take great care not to pullthe torsion spring too much.Part 2: Troubleshooting S900 / S820 / S750 / S5202-16Figure 2-5 Timing Slit Strip
