ADJUSTMENT
4.1.5 Carriage Guide Shaft Parallelism Adjustment
The rear carriage guide shaft must be parallel to the platen. If it is not, printing may be abnormal because paper is not fed evenly at the left and right sides of the platen. A paper jam may occur. This adjustment is required when the rear carriage guide shaft is removed during carriage mechanism disassembly, the parallelism adjust lever is moved, or the platen is removed. Do not remove the printer mechanism (If remove the printer mechanism from the lower case, the adjust value will be out of order when you reassemble the printer mechanism to the lower case.) Also, it is necessary to remove the tension roller shaft before performing this adjustment. (Refer to Section 3.2.6.7.)
CAUTION
The parallelism is adjusted so that the difference between the distances (from the rear carriage guide shaft to the platen measured at the two positions shown in Figure
;Dial gauges (x 2) #F610 (Part No. B1019466)
;Dial gauge base #F611 (Part No. B1019467)
;Dial gauge master #F612 (Part No. B1019468).
Before performing the carriage guide shaft parallelism adjustment, you must assemble the two dial gauges, dial gauge base, and dial gauge master to form one tool. Follow these steps:
Step 1: Attach the two thumb screws for the dial gauge base to the dial gauge master. To eliminate any play between the dial gauge base and the dial gauge master, pull the tie band to secure the dial gauge base and the dial gauge master before you securing the thumb screws.(Do procedure with two men.)
Figure 4-5. Set Dial Gauge to Dial Gauge Base
Step 2: Attach a dial gauge needle to the surface of the dial gauge master (approx. 2.00 mm depth), then tighten the hexagonal screw securing the dial gauge to the dial gauge base.
2. Tighten the hexagonal screw.
1. Attach the gauge needle
to the master surface.
Figure 4-6. Dial Gauge Set Up 1
Rev. B |
