Chapter 2
2-11
2.5.2 Detecting Jams
2.5.2.1 Jam Detection Outline
2.5.2.1.1 Outline
0018-6694
LBP5050N / LBP5050
The printer uses the following sensors to detect the presence of media and to check whether media is being fed correctly or has jammed:
- Cassette media presence sensor
- Top of page sensor
- Loop sensor
- Priority slot media presence sensor
- Priority slot top of page sensor
- Fixing delivery sensor
The printer detects the following jams:
1. Pickup delay jam
2. Pickup stationary jam
3. Delivery delay jam
4. Delivery stationary jam
5. Fixing wrapping jam
6. Residual media jam
7. Door open jam
2.5.2.2 Delay Jams
2.5.2.2.1 Paper delay JAM
0019-1697
LBP5050N / LBP5050
In case that the paper edge sensor cannot detect the leading edge of paper by the time of re-pickup from the image formation start.
2.5.2.2.2 Fixing delay JAM
0019-1703
LBP5050N / LBP5050
In case that the fixing delivery sensor cannot detects the leading edge of paper within 3.9 sec from re-pickup start.
2.5.2.3 Stationary Jams
2.5.2.3.1 Pickup residual JAM
0019-1711
LBP5050N / LBP5050
In case that the paper edge sensor cannot detect the trailing edge of the paper within 8.4 sec from re-pickup start.
2.5.2.3.2 Fixing Stationary Jam
0019-1713
LBP5050N / LBP5050
The fixing delivery sensor cannot detect the trailing edge of paper within 4.5 sec after the paper leading edge sensor detects the trailing edge of paper.
2.5.2.4 Other Jams
2.5.2.4.1 Fixing winding JAM
0019-1716
LBP5050N / LBP5050
In case that the sensor turns OFF by the time that the fixing residual detection start after the fixing delivery sensor detects the leading edge of the paper.
2.5.2.4.2 In-body residual JAM
0019-1721
LBP5050N / LBP5050
If any of the following sensor detects the paper presence at power ON, door close or before/after printing; manual feed paper edge sensor, paper edge sensor, paper
arch sensor and fixing delivery sensor.
2.5.2.4.3 Door open JAM
0019-1730
LBP5050N / LBP5050
When door open is detected during printing, if the certain censor detects paper presence.
Cassette pickup solenoid
SL705
CASSETTE PICKUP SOLENOID DRIVE
signal
DC controller
Cassette media presence
sensor
SR601
CASSETTE MEDIA PRESENCE signal
DC controller
Top of page sensor
SR602
TOP OF PAGE signal
DC controller
Loop sensor
SR603
LOOP DETECTION signal
DC controller
Manual feed slot media presence
sensor
SR604
MANUAL FEED SLOT MEDIA
PRESENCE signal
DC controller
Manual feed slot top of page
sensor
SR605
MANUAL FEED SLOT TOP OF PAGE
signal
DC controller
Fixing delivery sensor
SR609
FIXING DELIVERY signal
DC controller
Description
Signal
Driver
Содержание I-Sensys LBP5050
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