Ricoh JP5000 Service Manual page 218

1 July, 1998
6.7.3 THERMAL HEAD
First, remove the platen roller.
A: Thermal head cover
B: Thermal head (Disconnect the thermal head connectors)
CAUTION: 1) After the replacement, adjust the input voltage.
2) There is a small mylar [C] in the base. At reinstallation, make sure
that it is in the correct position. (Refer to 6.7.10 Master Feed Mylar
Positioning.)
3) Make sure that there is no foreign material on the thermal head
surface (especially on the heating elements).
Don't touch the surface with bare hands. (If you touch it, clean the
surface with alcohol.)
4) Similarly, do not touch the surface of the master film with bare
hands.
5) Connect and disconnect the connectors carefully.
Keep them horizontal. Also, make sure that they are reconnected
firmly.
6) Don't touch the terminals of the connectors with bare hands.
[A]
C229R090.WMF
6-27
MASTER FEED SECTION
[B]
[C]
C229R061.WMF