Epson ActionLaser 1600, Service Manual

Page: 77 / 181

Principles of Operation
The following figure shows the fuser temperature control procedure.
F i g u r e 2 - 2 0 . F u s e r T e m p e r a t u r e C o n t r o l
If the following conditions are detected, the printer indicates a fuser error (the
LCD displays SERVICE REQ. E0003).
. The thermistor temperature does not reach 55°C (131°F) within 15 sec.
. The warm-up period does not end within 120 seconds.
. The thermistor temperature drops to 130°C (266°F).
. The thermistor temperature exceeds 200°C (392°F).
The thermo fise (TF1) cuts power if the temperature of the fusing section rises to
an abnormally high level (over 200°C, 392°F).
S c a n n e r M i r r o r M o t o r C o n t r o l
Figure 2-21 is the scanner mirror motor (M2) control circuit. The scanner mirror
motor is driven while the scanner motor receives the SCANNER MIRROR
MOTOR (M2:ON) signal.
F i g u r e 2 - 2 1 . S c a n n e r M o t o r C o n t r o l C i r c u i t
EPSON ActionLaser 1600 Service Manual
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