HP laserjet m712 Fehlerbehebungsanleitung
Table 1-14
Paper deck pickup-and-feed operation components (continued)
Abbreviation
Component
Signal
SW83
PD cassette 2 media end switch
PD CASSETTE 2 MEDIA END signal
M91
PD cassette 3 pickup motor
PD CASSETTE 3 PICKUP MOTOR CONTROL signal
M92
PD cassette 3 lifter motor
PD CASSETTE 3 LIFTER MOTOR CONTROL signal
SL91
PD cassette 3 pickup solenoid
PD CASSETTE 3 PICKUP SOLENOID signal
SR91
PD cassette 3 media feed sensor
PD CASSETTE 3 MEDIA FEED signal
SR92
PD cassette 3 media stack surface sensor
PD CASSETTE 3 MEDIA STACK SURFACE signal
SR93
PD cassette 3 media out sensor
PD CASSETTE 3 MEDIA OUT signal
SW92
PD cassette 3 media width switch
PD CASSETTE 3 MEDIA WIDTH signal
SW93
PD cassette 3 media end switch
PD CASSETTE 3 MEDIA END signal
Paper deck cassette media-size detection and cassette-presence detection
The paper deck controller detects the size of paper loaded in the cassette and also whether the cassette
is installed to the paper deck by monitoring the PD cassette media width switch and the PD cassette
media end switch.
The PD cassette media width switch and the PD cassette media end switch contain three subswitches
each. The paper deck controller detects the size of paper and the presence of cassette according to the
combination of the sub-switches and notifies the formatter.
The cassette media-size detection and the cassette-presence detection are not performed during Sleep
mode.
Table 1-15
Paper deck media switch combinations
Paper size
Cassette media width switch
Cassette media end switch
Top
Center
Bottom
Top
Center
Bottom
Cassette
absence
absence
OFF
OFF
OFF
OFF
OFF
OFF
A5-R
ON
ON
OFF
ON
ON
ON
B5-R
OFF
ON
OFF
ON
ON
ON
Executive-R
OFF
ON
ON
ON
ON
ON
Letter-R
OFF
OFF
ON
ON
ON
ON
A4-R
OFF
OFF
OFF
ON
ON
ON
8.5 x 13 in
ON
ON
OFF
OFF
ON
ON
Legal
ON
ON
OFF
OFF
OFF
ON
B4
OFF
ON
OFF
OFF
OFF
ON
ENWW
1x500 and 3x500 paper feeder and stand
63