Table 5-9. Paper Is Not Fed (Asf) - Epson Stylus 800 Service Manual

Stylus 800+ Service Manual
Cause
The paper-end sensor may
be defective.
The paper feed motor may
be defective.
The ASF mechanism maybe
defective.
The paper path may be
defective.
Rev. A

Table 5-9. Paper is Not Fed (ASF)

Step Checkpoint
Does the sensor toggle?
(Check with a multimeter.)
Disconnect CN5 on the Cl 34
MAIN board and use a
resistance between: pin 1
and pin 3, pin 5 and pin 3,
pin 2 and pin 4, and pin 6
and pin 4 (4 points total) on
the disconnected cable side.
Pin 1- Pin 3
Pin 5- Pin 3
Pin 2- Pin 4
Pin 6- Pin 4
Are the resistances of all four
points above approximately
54 ohms?
If any coil is shorted, check
the paper feed motor drive
circuit using the following
procedure:
1. Set the muftimeter to
resistance check tie.
2. Place the (-) terminal of
the multimeter on pins 1,
5,2, & 6 of connector CN5
on the C134 MAIN board.
3. Place the (+) terminal on
pin 6 of connector CN7 on
the C134 MAIN board
With the power off, does the
Does the ASF roller rotate?
4 —
Finding Solution
Replace the
paper-end
sensor.
Replace the
No
paper feed motor.
Replace the
paper feed motor
and the C134
MAIN board.
Replace or
reassemble the
No
Reassemble the
—
paper path.