Overview; Detection Jams; Jam Detection Outline; Type Of Jams - Canon FAX-L380S Series Service Manual

Chapter 2

2.4.1.2 Overview

/ / FAX-L390
[1] Cassette feed
[2] Cassette pickup roller
[3] Separation pad
[4] Manual feed
[5] Feed roller
[6] Transfer assembly (photosensitive drum, transfer
charging roller)
[7] Fixing assembly (fixing film, fixing pressure roller)
[8] Delivery roller
[9] Face-up cover
[10] Face-up delivery
[11] Face-down delivery roller
Pickup and Feed Operation (from the cassette)
If the cassette paper sensor detects the presence of paper while the absence of paper is identified in the manual feed pickup assembly, the machine picks up paper
from the cassette.
When the main motor operates and the cassette pickup solenoid goes on, the cassette pickup roller makes a single rotation to pick up paper. The paper is then moved
from the transfer assembly to the fixing assembly by the feed roller; it is ultimately delivered outside the machine by the work of the delivery roller.
When the face-up cover is open, the paper is delivered face-up at the rear of the machine. If the face-up cover is closed, on the other hand, the paper is moved along
the feed guide of the cover, and is delivered face-down at the top of the machine by the work of the face-down delivery roller.
Pickup and Feed Operation (from the manual feed section)
When paper is inserted into the pickup assembly, the manual feed paper sensor detects the presence of paper, and the machine uses the feed roller to pick and hold
the leading edge of the paper. When printing starts, the machine turns on the manual feed pickup solenoid to stop the rotation of the feed roller so that the paper
will not move forward until the laser/scanner and the fixing unit become ready for operation. When the laser/scanner and the fixing unit become ready for operation,
the machine turns off the manual feed pickup solenoid to rotate the feed roller, thus moving the paper forward; the operation thereafter is identical to the operation
used for pickup from the cassette.

2.4.2 Detection Jams

2.4.2.1 Jam Detection Outline

2.4.2.1.1 Type of Jams

/ / FAX-L390 / / / FAX-L380S
The machine identifies the following types of jams:
Pickup Delay Jam
The top sensor does not go on within a specific period of time after pickup starts.
Pickup Stationary Jam
The top sensor goes on, but does not go off within a specific period of time.
Delivery Delay Jam
The top sensor goes on, but the delivery sensor does not go on within a specific period of time.
2-4
[11]
[10]
[9]
[8]
[7]
[13] [1]
[21]
[14] [16]
F-2-5
T-2-5
[12] Face-down delivery
[13] Main motor
[14] Cassette pickup solenoid
[15] Manual feed pickup solenoid
[16] Cassette paper sensor
[17] Manual feed paper sensor
[18] Top sensor
[19] Delivery sensor
[20] Toner sensor (MF5550 only)
[21] Paper full sensor
[12]
[19]
[6]
[20]
[18]
[17]
[4]
[15]
[5]
[2]
[3]
0011-6150
0011-4690