Epson Stylus Pro 4910 Service Manual page 295

Epson Stylus Pro 4900/Epson Stylus Pro 4910
Class Adjustment Items
Cutter Belt Tension
9
Check
Media Feed
4
Related
Suction Check &
10
Adjustment
ADJUSTMENT
General Overview
Give a specified tension to the cutter timing belt. Measure
the tension using the Sonic Tension Meter U-507 to check
if it is within the standard value. If it is not within the
standard value, adjust the tension.
Operate the Suction Fan using the Service Program to
measure the air pressure simply. If it is not within the
standard value, adjust the air pressure.
(Close all suction holes on the platen except one, and
measure the pressure using the simple water level
measurement device. Execute this adjustment to correct
the variation of the performance of the Suction Fan.)
Overview
Symptom
When the tension is out of the standard value,
the following symptoms may occur.
Belt tension is high:
The load gets higher, and the cutting
speed gets slower.
The load gets higher, and the cutter
operation gets Wait control by the
heating control.
If the tension is too high, the shaft of the
motor leans and the brush in the motor is
worn. This will cause the CR overload
error (SC154A).
Belt tension is low:
Slipping of the teeth of the belt occurs
and it disables cutting paper.
If the adjustment is not executed, the troubles
such as wrinkles/waves/paper jam/head rubbing
may be caused by the improper paper feeding.
Revision A
Tool
Page
SP SM MECH
√
--- --- p.381
√ √
--- p.383
296
Confidential