Sharp SX 1075

SX™
Service and Maintenance Manual 3-104 960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
PRINTHEAD CRADLE ASSEMBLY
RIBBON MOTION SENSOR
This sensor communicates to the machine the
motion of the ribbon supply hub. If the ribbon is not
unwinding during a machine cycle, the machine will
go into a “Ribbon Fault.”
Some parts of testing the ribbon motion sensor
require that power be applied to the machine.
1. If the machine goes into a “Ribbon Fault,”
check to make sure there is ribbon left on the
supply roll and that it is properly threaded
through the machine. If the ribbon is
completely used, install a new roll of ribbon and
check machine operation.
2. After the machine passes a visual check, press
the “Feed” button on the printer control panel
(Figure 3-261). This will pull the ribbon through
the machine. If this does not clear the ribbon
fault, move to step 3.
3. Remove power from the machine, and remove
the outside frame cover (Figure 3-262).
TESTING
Always remove electrical power from the
SX

prior to performing any maintenance
on the machine.
WARNING
READY STOP ERROR
PAUSE CANCELFEED
REV ENTFWD
MENU
ESCESC TEST
Figure 3-261. Printer Control Panel
Feed Button
USE EXTREME CAUTION WHILE SERVICING
A MACHINE WHILE POWER IS APPLIED.
UNEXPECTED MACHINE ST
ARTUP CAN
CAUSE SERIOUS INJURY OR DEATH.
WARNING
DO NOT ATTEMPT TO SERVICE THE
MACHINE DURING NORMAL OPERATION.
KEEP HANDS AND ARMS CLEAR OF
MOVING PARTS.
WARNING
WHILE TESTING ELECTRICAL
COMPONENTS WITH POWER APPLIED TO
THE MACHINE, USE PROPER
TROUBLESHOOTING TECH
NIQUES TO
AVOID ELECTRICAL SHOCK.
WARNING
Figure 3-262. Frame Cover Screws