Repair Of The Printer Mechanism - Epson Stylus SCAN 2000 Service Manual

EPSON Stylus Scan 2000

3.2 Repair of the Printer Mechanism

This section provides instruction for repairing the printer mechanism. It describes various
problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom
from the table and check each parts and its function as described in the checkpoint.
Symptom Condition
Abnormal PF motor
Abnormal pump
operation when the power
mechanism operation
is turned on.
Used ink does not go
Ink is not absorbed or is
through the waste ink
poorly absorbed.
tube.
Abnormal carriage
operation at power on.
Abnormal carriage
operation.
Abnormal carriage
operation during printing.
Troubleshooting
Table 3-3. Repair of the Printer Mechanism
Cause Check Point
Foreign substances are loaded Manually drive the platen drive gear and check
in the PF gears. it if it rotates normally.
The PF motor is defective.
Check the inner coil resistance and see if there
is any disconnection of the coil.
(Refer to Table5-1)
The pump tube is crashed. Check the tube visually.
Capping rubber is damaged or
Check the capping rubber visually.
deformed.
The tube is out of the cap. Check if the tube is out of the cap visually.
Pump bulb is not closed at
Check the bulb operation visually.
absorption.
Foreign substance in the CR
Check visually if there is any substances or not. Remove any foreign substances.
drive gear.
Check the inner coil resistance and see if there
CR motor is defective.
is any disconnection of the coil.
Check whether the carriage moves smoothly
when moved manually.
Carriage movement is not
Check tension of the timing belt.
smooth.
Check if there is any foreign substances in the
carriage path.
Repair of the Printer Mechanism
Revision A
Solution
Remove any foreign substances.
Replace the PF motor.
Fix the crashed part by the airgun.
Replace the cap mechanism.
Connect the tube properly.
Replace the cap mechanism.
Replace the CR motor.
Clean and lubricate the carriage guide
axis.
Adjust tension mechanism or replace it.
Remove any foreign substances.
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