Replacing The Ribbon Motors; Replacing The Print Head - TEC B-672 Maintenance Manual

2. MAJOR UNIT REPLACEMENT

2.4 REPLACING THE RIBBON MOTORS

CAUTION:
NEVER separate the ribbon motor from the attaching plate because doing so will change their
adjustment.
1) Remove the CPU PC board. (Refer to section 2.1.)
2) Detach the connector and remove the two SM-3x5B screws to detach the ribbon motors.
Attaching Plate
Ribbon Motor
Screw (SM-3x5B)
Riboon Motor
Screw (SM-3x5B)
3) Replace the ribbon motors, then align the dowels to attach the ribbon motors. Reassemble in the
reverse order of removal.

2.5 REPLACING THE PRINT HEAD

CAUTION:
1. NEVER touch the element when handling the print head.
2. NEVER touch the connector pins to avoid damage to the print head by static electricity.
3. NEVER remove the two screwws painted red on the side of the print block.
NOTE: This procedure can be done without removing the left side cover.
1) Remove the two (B-4x4) screws to detach the head cover plate.
2) Pull right to remove the front shaft.
Head Cover Plate
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: 91 748 16 04 www.mpi.com.es
Connector
FLOIL G-488 (Red)
Attaching Plate
Front Shaft
2.4 REPLACING THE RIBBON MOTORS
FLOIL G-488
Connector
(Black)
Screw (B-4 x 4)
2-6
EM18-33017
Dowels
Fig. 2-8
Fig. 2-9