Chapter 4

4-12

4.3.6 Driving Unit
0012-6365
a. Timing belt (for driving the feed roller)
To assemble the timing belt for driving the feed roller, loosen the tensioner setscrew and establish the tension
of the timing belt by adjusting the spring pressure. When the timing belt is assembled back in position,
tighten the tension with the setscrew.
F-4-16
b. Action following the replacement of the feed roller and feed roller encoder
This printer as shipped has the feed roller eccentricity (that is, variations in the rate of paper feed from
rotation to rotation) corrected for enhanced media feed accuracy. When the feed roller, feed roller HP sensor
or feed roller encoder pertaining to the correction of eccentricity variations has been replaced or
disassembled and reassembled, therefore, the feed roller should require adjustment.
Execute service mode under the following conditions:
Service mode SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING
Media type: Gloss photo paper
Paper size: 36 inches
If adjustment cannot be done properly by selecting "SERVICE MODE > ADJUST > PRINT PATTERN >
LF TUNING" (auto adjustment), carry out manual adjustment.
Service mode SERVICE MODE > ADJUST > PRINT PATTERN > LF TUNING2
Media type: Gloss photo paper
Paper size: 36 inches
Check the printed pattern and enter values for adjustment.
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