Konica Minolta Magicolor 2490 MF, Руководство по обслуживанию

Страница: 89 / 150

16. Conveyance section/registration roller Theory of operation ver. 1.0 July. 2006
58
magicolor 2490MF
Composition/Operation
16.3.2 OHP film detection
• To ensure that the paper of the correct type is being used, the OHP sensor detects the
type of the paper being conveyed.
• When the registration sensor is activated, the OHP sensor is also activated and the type
of paper being conveyed is determined if it is OHP film or any type other than OHP.
• If the OHP sensor is not deactivated, the machine determines that the paper is a type
other than OHP film. If the OHP sensor is activated, the machine determines that the
paper is OHP film.
• If the paper type specified by the controller when a print request is made does not match
the results of OHP sensor detection, the machine suspends the print cycle and displays
a corresponding message on the control panel.
16.3.3 Size error detection control
• To prevent incorrect printed pages, the size of the paper being conveyed is detected
using the registration sensor.
• The length of the paper is detected based on the value calculated using the period of
time that begins when the sensor is activated and ends when it is deactivated.
• If the paper size specified by the controller does not match the paper size detected by
the registration sensor, the machine displays a corresponding message on the control
panel.
• The paper that has caused the size error is subject to the print processes. Operations for
the subsequent sheets of paper can be specified from the controller.
4139to2092e0
OHP Sensor
Reflection Mirror
Registration Roller
OHP Sensor
4139to2093e0