Canon CP660 Service Manual page 288

CHAPTER 10 TROUBLESHOOTING
No.
Name
Meter probe (+)
Service Printer unit
mode panel
Reader
unit panel
Checks (normal as
described)
No.
Name
Meter probe (+)
Service Printer unit
mode panel
Reader
unit panel
Checks (normal as
described)
10-6
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PS18
Pick-up unit cover
sensor
J210-16
While in standby, the
pick-up unit cover is
• opened, '0'.
• closed, '1'.
PS24
Duplexing unit paper
sensor
J2008-3 *2
DC-CON, P002 bit 4
While in standby,
when paper is
• put over PS24, '0'.
PS19 *1
Multifeeder tray last
sheet sensor
J208-3
DC-CON, P002 bit 0
While in standby,
when the roll under
PS19 is rotated,
alternately '0' and '1'.
PS25
Horizontal registra-
tion guide home
position sensor
J2006-3 *2
While in standby,
remove the duplexing
unit, and move the
light-blocking plate to
the sensor, and put
the duplexing unit
back in. When the
light-blocking plate is
• moved over the
sensor, '1'.
• not moved over the
sensor, '0'.
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
PS23
Duplexing feeding
roller 1 home posi-
tion sensor
J2007-6 *2
While in standby,
remove the duplexing
unit, and move the
light-blocking plate to
the sensor, and put
the duplexing unit
back in. When the
light-blocking plate is
• moved over the
sensor, '1'.
• not moved over the
sensor, '0'.
PS26
Reversal paper sen-
sor
J2007-3 *2
DC-CON, P002 bit 5
While in standby,
when paper
• is put over PS26,
'0'.