Operation Manual

4.2.3 Bearings at ends of support shaft
The two bearings at the end of the support shaft are secured by fixing screws in placed
after being positioned at the factory. Never disassemble these bearings (except for head
gap adjustment). Red fixing screws are used to distinguish them form other screws.
The bearings need not be removed to remove the carriage.
4.2.4 Purge unit and bottom case assembly
When the purge unit is assembled with the bottom case, check that the two tubes from
the purge unit lead to the ink absorbers. Take care when assembling that the ends of
the tubes are clear; ink drying in the tubes would hinder purging.
4.2.5 Securing idler pulley assembly screw
If you have loosened the idler pulley assembly screw, as when removing the carriage,
you must use the special tension spring (QY9-0046) when reassembling.
Before tightening the screw, move the carriage horizontally several times to equalize
the belt tension. *
After tightening the screws, remember to remove the tension spring.
5-5
BJC-7100
Part 5: Maintenance
Red Screw
Support Shaft
Head Alignment Adjuster Plate
Figure 5-4 Bearings at Ends of Support Shaft
Waste Ink Absorber
Upper: Ink Tube
Ink Optimizer Absorber
Lower: Ink Optimizer Tube
Red Marks
Figure 5-5 Purge Unit and Bottom Case Assembly
Idler Pulley Assembly
Tension Spring
Screw
Carriage Belt
a
* : See CAUTION on Page 1-14.
Figure 5-6 Tightening Idler Pulley Assembly Screw