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COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005
5-7
CHAPTER 5 TROUBLESHOOTING
6. Dcon
Check
This mode is used when checking the
operation of the hardware controlled with the
control PCB.
•
Operation screen
When [Dcon Check] is selected on the
service screen, the operation screen is
displayed.
Figure 5-208
a. Job
buttons
When the job button is pressed, the cor-
responding mark lights.
Figure 5-209
b. Sensors
When sensors enter the detection state,
the corresponding mark lights. The case
where the shading sensor enters the de-
tection state is shown below.
Figure 5-210
Note 1:
If the upper unit or the rear cover is
open, the registration sensor function
is invalid and its display is not correct.
Note 2:
“USS Double Feed Detection” at the
lower left side of the screen does not
need to be used until the ultrasonic
sensor is installed.
The contents of marks are shown below.
Mark
Sensor name
Lighting state
Upper opening
sensor
The upper unit is
open.
Registration
sensor
The registration
sensor detects a
document.
Document
board sensor
A document is set.
Shading sensor The reading unit
(lower) is at the
shading position.
Pre-registration
sensor
The pre-registration
sensor detects a
document.
Rear cover
sensor
The rear cover is
open.
Table 5-202
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