Hitachi HT-4139-28 Maintenance Manual page 122

REV0 10.02.15
9.5 Adjusting the Imprinting Gap
Check the Imprinting Gap when replacing the Imprinting Head
Platen Roller
#107
Imprinting head
LL washer(2)
Bind-head Screw(2)
Adjust with long hole
Screw for adjustment
2 bind-head Screws
-H9-6-
Bearing
#108 DC Motor(NMB)
Replacing the Imprinting Head ASSY
① Put the Imprinting Head ASSY on the LL
washer faced heads and tighten 2 bind-head screws.
② Make sure the Roller and the Bearing is
touching each other. Check whether the center of
the Imprinting Head ASSY should be leaning
towards the left, and loosen 2 bind-head screws. If
the two are not touching each other, use the long
hole on the Imprinting Head ASSY to adjust it.
After, attach the LL washer head on the Imprinting
Head ASSY.
③ Use the thickness gauge and measure the gap
between the Imprinting Head and the Roller. It
should be 0.2~0.35mm. If the gap is outside that
boundary, adjust the knob on the Imprinting Head;
●
① Check whether the center of the Imprinting
Head ASSY should be leaning towards the left, and
loosen 2 bind-head screws.
② Use the thickness gauge and measure the gap
between the Imprinting Head and the Roller. It
should be 0.2~0.35mm. If the gap is out of
specification, adjust the Bind-head screw on the
Imprinting Head;
Tools Needed: Magnetic Philips Screwdriver (No.2),
Thickness gauge
#17 Imprinting head ASSY
Replacing the Imprinting Head