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Symptom
The CR motor
does not operate.
,
1
-he carriage
n naves, but no
F
Itinting is
-E
ErfOmWd.
TROUl3LESHOOTlNG
5.2.3 Printer Mechanism Repair
The table below describes how to isolate problems with the printer mechanism. To replace or adjust printer
mechanism parts, refer to Chapter 3, Disassembly and Assembly, and Chapter 4, Adjustments. If a
SyT!IptOm recurs fOIlOWing a repair attempt, look for other possible causes and solutions in the table below.
Table 5-7. Printer Mechanism Repair I/ 4
Cause Checkpoint
The transwt lockina
1 Vwifv that the transoort lock& bracket
bracket (used to holi has been removed.’
the carriage in place
when the printer is
moved) has not been
removed.
Foreign objects are
1 Manually move the carriage to see il
lodged in the gears or the mot& rotates.
elsewhere (e.g. paper
dust on the carrage
encoder belt) in the
The carriage timing
bett is defective.
ohms+ 10%.
Manually check the carriage timing beR
tension.
The carriage guide
shaft parallelism
value is incorrect.
Check whether the carriage moves
smoothly when moved manually.
(Check that foreign objects are not
lodged in the printer mechanism.),
The CR encoder Check the waveform for the carriage
sensor is defective. encoder signal. (Refer to Table 5-6.),
The cardage encoder
Check the encoder belt (below the
t&l is damaged or carriage timing belt).
covered with dust.
The printhead FPC Check the continuity of the common
common wires are wires for the printhead FPC.
broken.
Remove any foreign
motor.
timing belt tension
adjustment, as
described in Section
adjustment, as
described in Section
carriage encoder 1