Delay Jams; Stationary Jams; Other Jams; Pickup Delay Jam - Canon L120 Series Service Manual

Chapter 2
The machine identifies the following types of jams:

Pickup Delay Jam

The paper leading edge sensor does not go on within a specific period of time after pickup starts.

Pickup Stationary Jam

The paper leading edge sensor goes on, but does not go off within a specific period of time.

Delivery Delay Jam

The paper leading edge sensor goes on, but the delivery sensor does not go on within a specific period of time.

Delivery Stationary Jam

The paper leading edge sensor goes off, but the delivery sensor does not go on within a specific period of time.

Wrap Jam

The delivery sensor goes on, but it goes off before a specific period of time passes.

Initial Jam

The paper leading edge sensor or the delivery sensor goes on while the main motor is starting to rotate.

Cover Open Jam

The machine identifies a condition in which the Cartridge cover is opened while it is moving paper.

2.4.2.2 Delay Jams

2.4.2.2.1 Pickup Delay Jam
FAX-L100 / FAX-L120
The CPU executes pickup operation twice if the paper leading edge sensor (PS801) does not detect the leading edge of print paper within about 1.4 sec
after the pickup solenoid (SL1) goes on.
Thereafter, if the paper leading edge sensor (PS801) does not detect the leading edge of print paper within about 1.4 sec, the machine will assume the
condition to indicate a pickup delay jam.
2.4.2.2.2 Delivery Delay Jam
FAX-L100 / FAX-L120
The CPU will assume the presence of a delivery delay jam if the delivery sensor (PS803) does not detect the leading edge of print paper about 1.8 sec after
the paper leading edge sensor (PS801) has detected the leading edge of print paper.

2.4.2.3 Stationary Jams

2.4.2.3.1 Pickup Stationary Jam
FAX-L100 / FAX-L120
The CPU will detect the presence of a pickup stationary jam if the trailing edge of print paper is not detected about 4.6 sec after the paper leading edge
sensor (PS801) has detected the leading edge of print paper.
Moreover, it will also assume the presence of a pickup stationary jam if the paper width sensor (PS802) does not detect the trailing edge of paper within
200 msec after the paper width sensor (PS802) has detected the leading edge of paper and the paper leading edge sensor (PS801) has detected the trailing
edge of paper.
2.4.2.3.2 Delivery Stationary Jam
FAX-L100 / FAX-L120
The CPU will assume the presence of a delivery stationary jam if the delivery sensor (PS803) does snot detect the leading edge of print paper during a
period of about 2.0 sec after the paper leading edge sensor (PS801) has detected the trailing edge of print paper.

2.4.2.4 Other Jams

2.4.2.4.1 Wrap Jam
FAX-L100 / FAX-L120
The CPU will assume that paper has wrap jam if the delivery sensor (PS803) does no detect the leading edge of paper within about 1.3 sec after the delivery
sensor (PS803) has detected the leading edge of print paper and then about 1.3 sec after the paper leading edge sensor (PS801) has detected the leading
edge of print paper.
2.4.2.4.2 Initial Jam
FAX-L100 / FAX-L120
The CPU will identify a residual jam when the paper leading edge sensor (PS801) or the delivery sensor (PS803) detects print paper at the start of initial
rotation.
2.4.2.4.3 Cover Open Jam
FAX-L100 / FAX-L120
The CPU will identify a cover open jam if the leading edge sensor (PS801) or the delivery sensor (PS803) detects print paper when the door is identified
as being open.
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