Epson Stylus 800, Stylus 1000 Service Manual 5

Chapter 5

Troubleshooting

5.1. General Description ............................................................................................5-1

5.2. Troubleshooting Information..............................................................................5-1

5.2.1. Error mode ............................................................................................................................. 5-1

5.2.2. Sensor Check Points.............................................................................................................5-2

5.2.3. Motor Check Points............................................................................................................... 5-2

5.3. Repair and Replacement of the Unit Part..........................................................5-3

5.4. Repair of the C202 PSB/PSE Board Component ............................................5-11

5.5. Repair of the C202 MAIN Board Component...................................................5-13

5.6. Repair of the Printer Mechanism......................................................................5-16

Troubleshooting

5.1 General Description

This section describes how to identify and troubleshoot the problems when repairing the printer by dividing
the troubles into two levels; repair and replacement of the assemblies and units, and repair of the
components. W hen replacing or repairing the unit or assem bly, be sure to refer to the cor responding flow
chart which enables you to isolate the defective assembly or unit easily according to the symptom
occurred. In repairing the component, refer to Section 5.4 and 5.5 which provide check points listed
separately according to the major electric parts.

5.2 Troubleshooting Information

This section provides inf ormation on the er ror modes displayed on the control panel and check lis ts used
to determine if the units in each assembly are normally functioning.

5.2.1 Error mode

The LEDs on the control panel indicate several abnorm al status of this printer. Table 5-1 lists the printer
errors and corresponding LED status. (Refer to Figure 5-1 for LED arrangement.)

Table 5-1. Printer Error Status

Printer status LED (a) LED (b) LED (c) LED (d)

Ink sequence is proceeding. Blinks
Ink cartridge change sequence is

proceeding.
Paper out
Paper jam
Black ink cartridge ink end
No black ink cartridge installed
Black ink cartridge ink low
Color ink cartridge ink end
No color ink cartridge installed
Color ink cartridge ink low
Maintenance required (Waste ink pad
needs replacing.)
Fatal error Blinks Blinks On On

Note) “−−−” means no effect.

Blinks

−−−

−−−

−−− −−−

−−− −−−

−−− −−− −−−

−−− −−− −−−

Blinks Blinks Blinks Blinks

−−− −−− −−−

−−− −−− −−−

On

Blinks

−−− −−−

−−− −−−

On

Blinks

Blinks

−−−

−−−

On

(3)

(4)

(b)

(c)
(d)

(a)
(2)

(1)

Figure 5-1. Control Panel

Rev. A

5-1

EPSON Stylus

&2/25

800

5.2.2 Sensor Check Points

Table 5-2 shows the check points for each sensor.

Table 5-2. Check Points for Each Sensor

Sensor Connector

No.

CN6 (HP sensor) 1:HP

CN7
(ASF HP sensor)

CN8 (PE sensor) 1:PE

CN9
(Black cartridge
detecting sensor)

CN10
(Color cartridge
detecting sensor)

Test pin No Test procedure

(Meter is set to the DC voltage.)

Set the “+” lead of the meter to the
2:GND
3:HPV
1:ASF
2:GND
3:ASFV

2:GND
3:PEV

1:BCO
3:GND

1:CCO
3:GND

pin 1 and “-” lead of the meter to

the pin 2.

Set the “+” lead of the meter to the

pin 1 and “-” lead of the meter to

the pin 2.

Set the “+” lead of the meter to the

pin 1 and “-” lead of the meter to

the pin 2.

Set the “+” lead of the meter to the

pin 1 and “-” lead of the meter to

the pin 3.

Set the “+” lead of the meter to the

pin 1 and “-” lead of the meter to

the pin 3.

5.2.3 Motor Check Points

Table 5-3 shows the check points for each motor.

Meter reading

Outputs High at the home
position.
Outputs Low at other positions.
Outputs Low at the home position.
Outputs High at other positions.

Outputs Low when paper is
loaded.
Outputs High when there is no
paper loaded.
Outputs Low when the cartridge is
installed.
Outputs High when the cartridge is
not installed.
Outputs Low when the cartridge is
installed.
Outputs High when the cartridge is
not installed.

Sensor Connector

No.

CN11
(ASF/Pump motor)

CN12
(CR Motor)

CN13
(PF motor)

Table 5-3. Coil Resistance for Each Motor and Check procedure

Test pin No Test procedure

(Meter is set to Ω.)

1:ASFA
2:ASF-A
3:ASFB
4:ASF-B
1:CRA
2:CR-A
3:CRB
4:CR-B
1:PFA
2:PF-A
3:PFB
4:PF-B

Set one lead of the meter to the pin 1

and the other lead to the pin 3.

Set one lead of the meter to the pin 2

and the other lead to the pin 4.

Set one lead of the meter to the pin 1

and the other lead to the pin 3.

Set one lead of the meter to the pin 2

and the other lead to the pin 4.

Set one lead of the meter to the pin 1

and the other lead to the pin 3.

Set one lead of the meter to the pin 2

and the other lead to the pin 4.

9.3 Ω ± 10 %
(at 25 °C/one phase)

7.8 Ω ± 10 %
(at 25 °C/one phase)

5 Ω ± 10 %
(at 25 °C/one phase)

Meter reading

5-2

Rev. A

Troubleshooting

5.3 Repair and Replacement of the Unit Part

This section contains the flow charts which are used to is olate the faulty unit by following the flow chart
according to the problem caused during replacing or r epairing the unit. You are to identify the faulty unit
based on the primary symptom listed in Table 5-4. Refer to Section 5.4, 5.5 and 5.6 for the information on
the repair at the component level such as PSB/PSE and MAIN board and the printer mechanism.

Table 5-4. Symptoms and Corresponding Flow Charts

Symptom Cause Flow chart

The printer does not operate at all. No LED goes on.

LED goes on but the printer mechanism does

not operate at all.

CR moves abnormally. When the printer is powered on, the CR leaves

the home position and a fatal error is indicated.
(The printer makes no abnormal noise.)

When the printer is powered on, the CR motor

immediately starts rotating irregularly and a fatal
error is indicated.

When the printer is powered on, the CR does

not move at all.

The printer feeds paper abnormally.After power on sequence, the printer is in the

paper ejecting motion for about 10 seconds and
indicates the paper jam error.

If the load button is pressed or any paper

loading operation is activated after power on
sequence, the printer loads paper form the ASF
and then indicates the fatal error.

If the load button is pressed or any paper

loading operation is activated after power on
sequence, the fatal error is indicated.

Printing operation is abnormal. No image is printed.

Faulty printing result (dot missing, uneven

printing)
The control panel does not function
normally.

No LEDs on the control panel goes on.
Buttons on the control panel do not function

normally.

Power on button does not work.

1

2

3-1
3-2

4-1
4-2

5

Rev. A

5-3

EPSON Stylus

4

&2/25

800

 Flow Chart 1 : The printer does not operate at all.

Start

Is the AC voltage
correct?

YES

Is the fuse

F1 on the PSB/PSE

board in a good

condition ?

YES

Is the

voltage output

from the CN2 on the

PSB/PSE board

normal?

YES

Replace the MAIN
board.

NO

NO

NO

Apply correct
AC voltage.

Replace the fuse.

NO

Has the fuse
blown?

Replace the
PSB/PSE board.

YES

Is the broblem
corrected?

YES

End

NO

Check the motor and driver
circuits. Refer to the section
"Repair of the Printer Mechanism."

Figure 5-2. Flow Chart 1

5-

Rev. A

 Flow Chart 2 : CR moves abnormally.

Start

Troubleshooting

Does

the CR move

when the printer is

turned on?

YES

Does

abnormal

noise occur after

printer

abnormal

noise and fatal

error occur while

turning

printer?

Is the CR

lock lever released?

is turned

on?

Does

on the

the

YES

YES

NO

occurs when the

printer is turned

NO

NO

NO

CR leaves the

home position and

stops then the fatal

error occurs?

connector securly

connected to the

Is the

cap assembly in

an abnormal

condition?

Replace the cap
assembly or reinstall it.

Does the PF
motor rotate?

Fatal error

on.

Does the

YES

Is the

HP sensor

CN6?

YES

YES

NO

NO

NO

NO

Is the

operation

normal?

End

END

Connector cable

resistance of

the CR motor

coil

Connect the HP
sensor connector
cable to the CN6.

Is the

operation

normal?

NO

YES

Is the

CR motor

Connected to

the CN12?

YES

Is the

correct?

YES

YES

Release

the CR lock

with the printer

power

Does the

off.

smoothly?

Oil the CR or clean
the CR shaft.

NO

Connect the CR motor
connector cable to the
CN12 properly.

NO

lever

CR

movemanually

NO

Replace the CR
motor.

Are

there

foreign

objects

between

sensor

the

HP

terminals?

NO

Is HP

sensor normaly

functioning?

YES

Is the

operation

normal?

NO

Is the

operation

normal?

Replace the MAIN
board.

YES

Remove the foreign
objects.

NO

NO

Replace the HP
sensor.

NO

NO

Is the

operation

normal?

Is the

operation

normal?

YES

YES

YES

YES

Is the

PF

motor connector

cable securly

connected to the

CN13?

YES

Is the

resistance of the

PF motor coil

normal?

YES

Replace the MAIN
board.

Connect the connector
cable to the CN13.

NO

NO

Replace the PF
motor.

NO

Figure 5-3. Flow Chart 2

Is the

operation

normal?

Is the

operation

normal?

YES

YES

End

END

Replace the MAIN
board.

NO

End

END

Rev. A

5-5

EPSON Stylus

6

&2/25

800

 Flow Chart 3-1 : The printer feeds paper abnormally.

Start

Does

the PF roller

move when the

printer is turned on?

(CR lock is

released.)

YES

After the printer

power is turned on, the

printer repeats paper feeding

motion and indicates

the fatal error.

YES

Foreign objects are
lodged on the ASF
HP sensor.

YES

Remove the foreign objects.

Is the
operation
normal?

End

END

NO

YES

NO

NO

NO

connector cable

securely connected

resistance of the

Is the

ASF

HP sensor

functioning

properly?

YES

Is the

PF motor

to the

CN13?

YES

Is the

PF motor coil

normal?

YES

the

is turned

repeats paper

and

are lodged on the PF

sensor lever in the upper

Replace the MAIN
board.

NO

NO

NO

After

printer power

on, the printer

ejecting motion

indicates

the

fatal error.

YES

Foreign objects

paper guide

assembly.

NO

Is the

PE sensor

functioning

normally?

YES

Connect the connector cable
securly to the CN13.

NO

Replace the PF
motor.

Is the operation
normal?

NO

YES

NO

Replace the ASF
HP sensor.

NO

Remove the foreign objects.

NO

NO

Is the
operation
normal?

Is the operation
normal?

YES

NO

Replace the MAIN
board.

If the load button

is pressed or the printing

operation is activated, the

fatal error occurs.

YES

Continues to Figure 5-5 (A).

Is the
operation
normal?

Replace the PE
sensor.

Is the
operation
normal?

YES

YES

YES

End

END

Replace the MAIN board.

End

END

Figure 5-4. Flow Chart 3-1

5-

Rev. A

 Flow Chart 3-2 : The printer feeds paper abnormally.

Continued from Figure 5-4.

(A)

If the load button

is pressed or the printing

operation is activated,

the fatal error

occurs.

Yes

No

operation is activated, the
feeds paper to the

If the

load button is

pressed or the printing

and

middle way

paper empty error

occurs.

printer

Yes

Troubleshooting

Check that the connector is
connected to the CN8.

Is the

operation

normal?

No

Yes

Is the ASF/pump

motor connector cable

securly connected to the

CN11?

Is the ASF

HP sensor connector

cable securly connected

to the CN7?

Is the ASF HP sensor
functioning normally?

Replace the PE sensor.

Yes

Connect the ASF/pump motor
connector cable to the CN7.

Replace the ASF HP sensor.

Is the

operation

normal?

Yes

No

No

Replace the MAIN board.

Connect the ASF/pump motor
connector cable to the CN11.

Is the

operation

normal?

Is the

operation

normal?

Is the PE

sensor functioning

normally?

Yes

END

Is the resistance

of the ASF/pump motor

coil normal?

Is the gear (27.2)
disengaged with

the ASF LD shaft?

Engage the gear (27.2)
with the ASF LD shaft.

Is the

operation

normal?

Replace the ASF/pump motor.

Is the

operation

normal?

Replace the MAIN board.

END

Figure 5-5. Flow Chart 3-2

Rev. A

5-7

EPSON Stylus

8

&2/25

800

 Flow Chart 4-1 : Printing operation is abnormal.

Start

Does

the printer

print with the

power

on?

Yes

Perform

nozzle check

pattern.

Do all

nozzles print

properly?

Yes

Image is not clear.

Yes

Are the

head gap and

Bi-d correct?

Yes

No

No

No

No

Is the

printer in the

ink end or no

cartridge

status?

Yes

Most of the
nozzles print.

Replace the ink
cartridge.

printing

Continues to Figure 5-7 (A).

White banding
problem occurs.

Perform Head GAP timing
and Bi-d adjustment.

printing

Is the

operation

normal?

No

normal?

Yes

Yes

Is the

operation

Yes

End

Has

No

the cartrdge

been replaced

during the ink

change

sequence?

Yes

Does

the sensor

properly detect ink

cartridge

exisstence?

Yes

Yes

Replace or clean the
PF roller or gear (70).

printing

Is the

current of

the head FFC

normal?

Is the

operation

normal?

No

Are

the correct

printer driver and

paper setting

selected?

No

Use the driver for Stylus
COLOR 800 or select
the proper paper setting.

Yes

Enter the ink cartridge

No

sequence and replace
the ink cartridge again.

No

printing

No

Replace the head
unit.

No

printing

No

Replace the head
FFC.

printing

Replace the MAIN
board.

Is the

operation

normal?

Is the

operation

normal?

Is the

operation

normal?

No

Yes

Yes

No

Yes

Are

the head

angular and head

vertical

correct?

Yes

Are

the correct

printer driver and

paper setting

selected?

Yes

No

No

Perform the Head angular
and BK.-Liner adjustment.

No

Is the

printing

operation

normal?

Use the driver for Stylus
COLOR 800 or select
the proper paper setting.

Yes

Is the

printing

operation

normal?

Replace the printer
mechanism.

Is the

printing

operation

normal?

No

Replace the MAIN board.

Yes

Yes

Yes

End

Figure 5-6. Flow Chart 4-1

5-

Rev. A

 Flow Chart 4-2 : Printing operation is abnormal.

(A) Continued form Figure 5-6.

Troubleshooting

Most of the
nozzles print.

NO

YES

Perform cleaning by using
the cleaning button.

Is the
printing
normal?

NO

YES

Perform cleaning by alternating
Nozzle check in the driver utility
and the head cleaning.
(Maximum 5 times)

Go back one step and
proceed to the meshed flow.

Is

there a

PC that has

a printer driver

installed?

YES

Is the

head cleaner

properly

functioning?

NO

YES

NO

Run Self test for 1 line then
perform necessary cleaning
using the cleaning button in
the self test mode.

Is the
printing
normal?

Is the

ink left in

the EPW more

than 2/5?

Replace the head cleaner
or the pump unit.

NO

Is the
printing
normal?

YES

head cleaner

positioned?

the pump unit

absorb the

YES

NO

YES

Perfom the forciblel initial
ink charge operation in
the adjusting program.

NO

Is the

correctly

YES

Does

ink?

YES

NO

Reinstall the head
cleaner or replace it.

NO

NO

Check or replace the cap
unit or the the pump unit.

NO

Is the
printing
normal?

Is the
printing
normal?

YES

YES

End

End

Enter the ink cartridge change
sequence to install a newly
unpacked ink cartridge.

Replace the deffective
head FFC.

YES

YES

Is the
printing
normal?

Is the
printing
normal?

NO

NO

Replace the MAIN board.

Is the
printing
normal?

YES

NO

Is the

NO

current of the

head FFC

normal?

Replace the deffective
printhead.

YES

End

Rev. A

Figure 5-7. Flow Chart 4-2

5-9

EPSON Stylus

0

&2/25

800

Flow Chart 5 : .The control panel does not function normally.

Start

Does

the power

switch

normally

operate?

Do the

buttons on the

control panel

normally

operate?

Is the FFC

properly

connected?

Check

the current

of the FFC. Is the

current

normal?

YES

YES

YES

NO

Switch on and off and check
the current between each signal

NO

line for the buttons on the control
panel and the ground using the
multimeter.

NO

NO

NO

NO

Is the

operation

normal?

Connect the panel FFC
proper ly.

Is the

operation

normal?

Replace the FFC.

NO

Is the

operation

normal?

YES

YES

YES

Switch on and off and check
the current between each signal
line for the power switch on the
control panel and the ground
using the multimeter.

Is the

operation

normal?

Is the FFC

properly

connected?

Check

the current

of the FFC. Is the

current

normal?

Is there

current between

the pin 5 of the CN4

and pin 10 of the CN5

on the MAIN

board.

YES

NO

NO

YES

NO

YES

Connect the panel FFC
proper ly.

NO

Replace the FFC.

NO

NO

Replace the MAIN
board.

Is the

operation

normal?

Is the

operation

normal?

YES

YES

Replace the MAIN board.

5-1

YES

Replace the PSB/PSE
board.

End

Figure 5-8. Flow Chart 5

NO

Is the

operation

normal?

YES

End

Rev. A

Troubleshooting

5.4 Repair of the C202 PSB/PSE Board Component

This section describes procedures in replacing and repairing the C202 PSB/PSE board at component
level. Refer to Table 5-5 and 5-6 which list symptoms, descriptions, causes, check points, and solutions.

Table 5-5. Repair of the C202 PSB/PSE Board Component (1)

System Description Cause Check points Solution

The printer does
not operate at all.

Neither +45 V nor
+5 V is output.

F1 is open. Check visually if the F1 is in a

normal condition.

T1 is open. Check the current by using the

meter.

Q1 is dead.

• Check that there is no current
between the source and drain at
the Q1 FET.

• Check that the waveform shown
below is output form the drain of
the Q1 FET.

Replace the F1.
Replace the T1.
Replace Q1.

Q2 is
defective.

Q31 is
defective.

• Unplug the AC inlet then check
that there is no current between
the collector and emitter of the
Q2 transistor.

• Check that the switching of the
Q2 is correctly functioning with
the printer power on.

• Unplug the AC inlet then check
that there is no current between
the source and the drain of the
Q31 FET.

• Check that the switching of the
Q31FET is correctly functioning
with the printer power on.

Replace Q2, or
check if the PC1
is functioning.

Replace Q31, or
check if the PC1
is functioning.

Rev. A

5-11

EPSON Stylus

2

System Description Cause Check points Solution

The printer does
not operate at all.

&2/25

800

Table 5-6. Repair of the C202 PSB/PSE Board Component (2)

Neither +42 V and
5v is not output.

PC1 is
defective.

• Check that there is no current
between the pins 5 and 6 or the
pins 7 and 8 for the PC1 with the
printer power on.

• Check that the waveform shown
below is output from the pin 5
and the pin 7.

Replace the
PC1.

+5V is not output. IC51 is

defective.

L51 is open.

• Check that the waveform shown
below is output form the pin7 for
the IC51.

• Check that there is current
between 2 leads of the coil for
the L51.

Replace IC51.

Replace L51.

5-1

Rev. A

Troubleshooting

5.5 Repair of the C202 MAIN Board Component

This section consists of the procedures for replacing and repairing the C202 MAIN board at the
component level. Refer to Table 5-7 which shows symptoms, descriptions causes, check points, and
solutions.

Table 5-7. Repair of the C202 MAIN Board Component (1)

Symptom Description Cause Check points Solution

The printer does
not operate at all.

CPU is not
functioning. (The
driver mechanism
is not functioning
correctly when the
printer is turned
on and off.)

Reset IC for
the IC9 logic
is defective.

• Check that 5V is output from the
pin 1 and 3 for the IC9 at a
normal state.

Replace the
reset IC for the
IC9.

Reset IC for
the IC8 42V
line or IC19
is defective.

CRU1 or
CRU2 is
defective.

• Check that +5V is output from
the pin 6 for the IC8 and is input
to the pin1 for the IC19, and 0V
is input to the pin 2 for the IC19
and +5V is output from the pin 4
for the IC19 at a normal state.

• Check that the waveform shown
below is output from the both
leads of the CRU.

Replace the IC8
or IC19.

Replace the
defective CRU.

Rev. A

5-13

EPSON Stylus

4

Symptom Description Cause Check points Solution

CR does not
operate properly.

&2/25

800

Table 5-8. Repair of the C202 MAIN Board Component (2)

CR does not
operate properly.

IC13 or IC2
is defective.

• Check that the driving waveform
for each phase output from the
IC13 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.

Replace the
IC13.

Paper is not fed
properly.

PF motor does
not operate
properly.

IC1 or IC2 is
defective.

IC16 or IC2
is defective.

• Check that the CR motor phase
changeover waveform output
from the IC2 to the IC13 is as
shown below.

• Check that the drive waveform
for each phase output from the
IC16 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.

Replace the
MAIN board.

Replace the
IC16.

5-1

Rev. A

Troubleshooting

Table 5-9. Repair of the C202 MAIN Board Component (3)

Symptom Description Cause Check points Solution

Paper is not fed
properly.

PF motor does
not operate
properly.

IC16 or IC2
is defective.

• Check that the PF motor phase
changeover waveform output
from the IC2 to the IC16 is as
shown below.

Replace the
MAIN board.

ASF does not load
paper, or the
pump mechanism
is not driven.

ASF / pump motor
is not driven
properly.

IC6 or IC2 is
defective.

IC1 or IC2 is
defective.

• Check that the drive waveform
for each phase output from the
IC6 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.

• Check that the ASF/pump motor
phase changeover waveform
output from the IC2 to the IC6 is
as shown below.

Replace the IC6.

Replace the
MAIN board.

Rev. A

5-15

EPSON Stylus

&2/25

800

5.6 Repair of the Printer Mechanism

This section consists of the tables which contains symptoms, des criptions, possible causes, checkpoints ,
and solutions which you need in troubleshooting the problems with the units in the printer mechanism.

Table 5-10. Repair of the Printer Mechanism (1)

Symptom Description Possible cause Checkpoint Solution

CR does not
move properly.

Fatal error occurs when
the printer is turned on
and CR motor fails to
rotate. (No abnormal
noise is heard.)

When the printer is
turned on, the CR
moves away from the
home position. Then
the fatal error is
indicated and the CR
stops. (No abnormal
noise is head.)

When the printer is
turned on, the foreign
noise is heard and the
fatal error occurs.

When turning on the
printer or activating the
CR, abnormal noise is
heard with the fatal
error indicated then the
CR stops.

The CR motor
connector is not
properly
connected.

CR motor coil is
open.

The timing belt is
dislocated.

HP sensor
connector is
disconnected.
Foreign objects
are lodged
between the HP
sensor terminals.

HP sensor is
defective.

CR lock lever is
not released.

Oil in the CR oil
pad is dried up.

Sliding part of
the CR unit and
the top frame is
not lubricated or
foreign objects
are lodged.
Foreign objects
are lodged
between the CR
shaft and the CR
unit.

Check if the CR motor
connector cable is
properly connected to
the CN12.

Check the CR motor
coil resistance referring
to Table 5-3.
Check if the timing belt
is engaged with the CR
pinion gear or the belt
pulley.
Check if the HP sensor
connector cable is
connected to the CN6.
Check if there are
foreign objects lodged
between the HP sensor
terminals.

Check if the HP sensor
is correctly functioning
referring to Table 5-2.

1. Check the PF motor
coil resistance
referring to Table 5-3.

2. Check if the PF motor
connector cable is
connected to the
CN13.

3. Check if anything is
interfering with the CR
lock lever movement.

Release the CR lock
lever with the printer
power off and check if
the CR manually
movessmoothly.

Release the CR lock
lever with the printer
power off and check if
the CR manually
moves smoothly.

Release the CR lock
lever with the printer
power off and check if
the CR manually
moves smoothly.

Connect the CR
motor connector
cable to the CN12.

Replace the CR
motor.

Reinstall the timing
belt or replace it.

Connect the HP
sensor connector
cable to the CN6.
Remove the foreign
objects.

Replace the HP
sensor.

1. Replace the PF
motor.

2. Connect the PF
motor connector
cable to the CN13.

3. Remove the
interfering factor.

Oil the oil pad built
in the CR unit.

Oil the sliding part of
the CR unit and the
top frame, or
remove the foreign
objects.

Replace the CR oil
pad.
Clean the CR shaft
using a soft cloth.

5-16

Rev. A

Troubleshooting

Table 5-11. Repair of the Printer Mechanism (2)

Symptom Description Possible cause Checkpoint Solution

CR does not
move properly.

Paper is not fed
properly.

When the CR returns
to the home position,
abnormal noise is
heard and the fatal
error is indicated.
PF motor does not
rotate when the printer
is powered on. (CR
lock lever is not
released and abnormal
noise is heard, then the
fatal error occurs.)
When the printer is
turned on, the printer
repeats paper loading
motion, then indicates
the fatal error.

When the printer is
turned on, the printer
repeats paper loading
motion and indicates
the paper jam error.
When the printer is
turned on, the fatal
error occurs if the load
button or printing
operation is activated.

when the printer is
turned of, the printer
starts loading paper if
the load button is
pressed or the printing
operation is activated.
But the loading motion
does not complete and
the paper empty error
occurs.

The cap in the
cap assembly
does not fit the
cap frame.

PF motor
connector cable
is disconnected.

PF motor coil is
open.

Foreign objects
are lodged
between the ASF
HP sensor
terminals.
ASF HP sensor
is defective.

Foreign objects
are lodged on
the PE sensor.

ASF/pump motor
connector cable
is disconnected.

ASF HP sensor
connector cable
is disconnected.

ASF/pump motor
coil is open.

The black gear
(27.2) on the
right edge of the
ASF is not
engaged with the
ASF LD roller
shaft.
PE sensor
connector cable
is disconnected.

Check if the cap
assembly is properly
installed.

Check if the PF motor
connector cable is
connected to the CN13.

Check the PF motor
coil resistance referring
to Table 5-3.
Check if there is foreign
object lodged between
the ASF HP sensor
terminals.

Check if the ASF HP
sensor is properly
functioning referring to
Table 5-2.
Check if foreign objects
are lodged at the PE
sensor lever and rear
paper guide.

Check if the ASF/pump
motor connector cable
is connected to the
CN11.

Check if the ASF HP
sensor connector cable
is connected to the
CN7.
Check the ASF/pump
motor coil resistan ce
referring to Table 5-3.
Check if the gear (27.2)
on the right edge of the
ASF is engaged with
the LD roller shaft.

Check if the PE sensor
connector cable is
connected to the CN8.

Reinstall the cap
assembly or replace
the cap assembly.

Connect the PF
motor connector
cable to the CN13.

Replace the PF
motor.

Remove the foreign
objects.

Replace the ASF
HP sensor.

Remove the foreign
objects.

Connect the
ASF/pump motor
connector cable to
the CN11.

Connect the ASF
HP sensor
connector cable to
the CN7.
Replace the
ASF/pump motor.

Reinstall the gear
(27.2).

Connect the PE
sensor connector
cable to the CN8.

Rev. A

5-17

EPSON Stylus

8

Symptom Description Possible cause Checkpoint Solution

Paper is not fed
properly.

Abnormal
printing

&2/25

800

Table 5-12. Repair of the Printer Mechanism (3)

ASF repeats paper
loading motion but the
paper is not loaded.
The last sheet of the
paper in ASF is not
loaded.
OHP sheet is not
loaded.

Paper out or Ink end
error occurs when
turning on the printer
despite the cartridge is
new.

All dots or most of the
dots in the nozzle
check pattern are not
printed.

Cleaning is performed
5 times or a newly
unpacked ink cartridge
is installed, but all dots
or most of the dots are.
not printed in the
Nozzle check pattern

ASF LD roller is
worn or paper
dust is lodged.
The guide sheet
is not placed.

OHP adapter is
not used.

Ink consumption
counter is not
reset since the
cartridge was not
replaced during
the ink cartridge
change
sequence.
The ink cartridge
sensor is
defective.
Head FFC is
disconnected.

Head FFC is
damaged.

Bubbles in the
cavity.

Head FFC is
disconnected.

Head FFC is
damaged.
The head
cleaner has not
contact with the
head.

Check the surface of
the LD roller.

Check if the
appropriate guide sheet
is used.
Check if the OHP
adapter is mounted or
is correctly used.

Check if the sensor is
functioning referring to
Table 5-2.
Check if the head FFC
is connected to the
CN9 or CN10.
Check current of the
pin 1 of each head
FFC.

Check if the head FFC
is connected to the
CN9 or CN10.
Check the current of
the each FFC.
Check if the head
cleaner is in contact
with the head with the
proper portion.

Replace the LD
roller.

Use the appropriate
guide sheet.

Use the OHP
adapter correctly.

Enter the ink
cartridge change
sequence again to
replace the ink
cartridge.

Replace the
printhead.

Connect the correct
FFC to the CN9 or
CN10.
Replace the head
FFC.

1. Alternate cleaning
and printing
operation.(Printer
driver utility is
useful.)

2. If the ink left in the
EPW is more than
2/5, perform the
initial ink charge
sequence in the
adjusting program.

3. Enter the ink
cartridge change
sequence to install
a newly unpacked
ink cartridge.

Connect the correct
FFC to the CN9 or
CN10.
Replace the head
FFC.

1. Adjust the head
cleaner position.

2. Replace the head
cleaner.

3. Adjust the platen
gap.

5-1

Rev. A

Troubleshooting

Table 5-13. Repair of the Printer Mechanism (4)

Symptom Description Possible cause Checkpoint Solution

Abnormal
printing

Cleaning is performed
5 times or a newly
unpacked ink cartridge
is installed, but all dots
or most of the dots are
not printed in the nozzle
check pattern.

White banding
appears.

Image is not clear. Head gap or Bi-d

Pump unit does
not absorb the
ink.

Printhead is
defective.

Dot missing Check the nozzle

PF roller is worn
or is smudged
with the ink.
Some teeth of
the gear (70)
broke off or the
gear is not
engaged with the
PF roller shaft
properly.
The driven roller
on the upper
paper guide is
worn or the
torsion spring
(117.6) has luck
of sufficient
tension.

is no adjusted
adequately.

Head angular or
head vertical is
not adjusted
properly.
PG is too wide. Check the position of

Dot missing Check if the nozzles

1. Check if the ink
absorb tubes are
properly connected to
the cap assembly.

2. Check if the ink
absorb tubes are
twisted or damaged.

3. Check if the rubber
part of the cap
assembly is
deformed.

4. Check if the air valve
in the cap assembly is
damaged.

(In case the problem
still occurs after
attempting all the
checkpoints mentioned
above.)

condition by performing
Nozzle check.
Check the surface of
the PF roller.

Check the teeth of the
gear (70).
Check if the gear (70)
rotates constantly with
the torque form the PF
motor.

Check if the surface of
the driven roller on the
upper paper guide is
blakish or is lodged
with foreign
objects.Check if the
torsion spring is
deformed or hooked
securely.
Check the head gap
and Bi-d status by
using the printer driver
utility, adjusting
program, or control
panel.
Refer to 4-12 and 4-15
in Chapter 4.

the PG lever.
are clogged by

performing Nozzle
check.

1. Connect the ink
absorb tubes to
the cap assembly
properly.

2. Replace the ink
absorb tubes or
the pump unit.

3. Replace the cap
assembly.

4. Replace the air
valve or the cap
assembly.

Replace the
printhead.

Refer to the solution
described in the
previous page.
Clean the PF roller
surface or replace
the PF roller.
Replace the gear
(70) or reinstall the
gear (70) properly.

Replace the driven
roller or the torsion
spring.
Remove the foreign
objects from the
surface of the driven
roller.

Perform adjusting
using the adjusting
utilities and
programs.

Refer to 4-12 and 4­15 in Chapter 4.

Set the lever to “0”.
Refer to the

corresponding
solution in the
previous page.

Rev. A

5-19

EPSON Stylus

0

Symptom Description Possible cause Checkpoint Solution

Abnormal
printing

&2/25

800

Table 5-14. Repair of the Printer Mechanism (5)

Ink smudge Ink on the driven

roller of the
upper paper
guide or other
paper paths.
PG is too narrow
or the paper
loaded does not
meet the
specification.

Feed plain paper and
check if it gets ink
smudge.

Check the position of
the PF lever.
Check the paper
thickens.

Clean the spot
stained with the ink.

Set the PG lever to
“+”.
Use the paper that
meets the
specification.

5-2

Rev. A