Brother 2060, Руководство по обслуживанию

Страница: 32 / 171

II-15
4.4 Paper Jam Detection
The printer has a registration sensor and a paper eject sensor at the paper outlet to
detect whether the printed paper has been fed correctly. A paper jam is detected by
whether the paper is present at the sensor at the check periods programmed in the
engine CPU memory. If the engine CPU detects a paper jam, the main motor, paper feed
motor and scanner motor is turned off immediately and the jam status is transmitted to
the video controller circuit.
A paper jam is detected in any of following conditions:
1)
Paper exists at the paper ejection sensor or the registration sensor when power is
switched on. (JAM REAR or JAM INSIDE)
2) Paper has not reached the registration sensor within a specified time (JAM
TRAYS).
3) Printed paper has not passed through the registration sensor within a specified
time (JAM INSIDE (1) ).
4) Printed paper has not reached the paper ejection sensor within a specified time
(JAM INSIDE (2) ).
5) Printed paper has not passed through the paper ejection sensor within a specified
time (JAM REAR).
Jam tray
Main motor
Registration
sensor
Pick-up
solenoid
STBY PRINT
Jam check
Jam Normal
3.00 sec 3.00 sec
Figure 2.21
Jam inside (1)
Jam
2.94 sec 2.94 sec
Normal
Main motor
Registration
sensor
Paper feed
motor
Jam check
STBY PRINT
Figure 2.22