EPSON Stylus Color 900

Revision C

Table 3-15. Remedies for Fatal Error (continued)

Table 3-16. Remedies for Fatal Error (continued)

Step

Check Point

 

 

6Is the lever securing the planetary gear dislocated from the frame? Has the tension spring come off?

7Has the coil for the Pump/ASF motor burnt?

8Is the coil for the ASF solenoid burnt?

 

Actions

 

Step

Check Point

Actions

Check if the two

 

 

9 Is the CRHP sensor

Check for the correct voltages at 3-pin connector

 

< P u m p / A S F S w it c h in g M e c h a n is m >

hooks securing

 

 

 

defective?

shown in the figure below.

the planetary gear

P u m p / A S F

M o t o r

 

 

Turn the printer on and check the voltage is correct

fixing lever to the

L e v e r F ix in g t h e

 

 

as follows:

Pump/ASF switch

P la n e t a r y

G e a r

 

 

• When the CR has come in the home position, the

mechanism are

 

 

 

 

voltage rises to 2.4 VDC or higher.

released from the

 

 

 

 

• When the CR has left the home position, the

frame.

 

 

 

 

 

 

 

 

voltage drops to 0.7 VDC or lower.

 

 

 

 

 

Also, check the

 

 

 

 

 

 

 

 

 

 

tension spring’s

I r o n

C o r e

in

 

 

 

 

 

 

condition.

 

 

M / C

 

th e

S o le n o id

 

 

 

 

 

 

 

 

 

 

 

T e n s io n S p r in g

 

 

 

R E

W

M

 

 

 

 

D

H

 

 

 

 

 

 

T o

P in

 

/

 

 

 

 

 

 

3

T

B L K C

 

 

 

 

 

( C R H P )

 

Measure the internal coil resistance of the pump/ASF

 

 

CR H

 

motor in the same manner as for the CR motor (Step 4).

 

 

 

 

 

 

<Resistance: 7.0 Ω ± 10%>

 

 

 

 

P

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

Referring to the figure below, measure the coil

T o

P in

2

 

 

M

 

 

 

 

 

 

 

resistance of the solenoid coil using a tester. Note the

 

( G N

 

 

 

 

 

/

tester can be used regardless of the polarity.

 

 

 

 

 

 

 

<Resistance: 588 Ω ± 10%>

10

Is the ASF sensor

Check for the proper voltage in the same manner as

 

defective?

described in the previous step. The ASF connector

 

 

 

 

 

 

 

 

 

 

 

(3-pin) location on the relay board is also shown in

 

 

 

 

 

 

the figure above. The pin configuration is also the

 

 

 

 

 

 

same as CRHP sensor.

 

 

 

 

 

 

At power on, the ASF reset operation is performed,

 

 

 

 

 

 

 

 

 

 

 

 

and the ASF Sensor detects ASF home position.

 

 

 

 

 

 

 

S o l e n o i d

Troubleshooting

Overview

89

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Epson SEIJ98006 manual Remedies for Fatal Error
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