EPSON POWERLITE PRO G6050W - G6150 - G6450WU - G6550WU - G6750WU - G6800 - G6900WU – HOW TO CLEAN THE AIR FILTER – HOW TO REPLACE THE PROJECTOR LAMP – HOW TO RESET THE LAMP HOUR

Epson PowerLite Pro G6050W - G6150 - G6450WU - G6550WU - G6750WU - G6800 - G6900WU – How to clean the air filter – How to replace the projector lamp – How to reset the lamp hour

Epson PowerLite Pro G6050W - G6150 - G6450WU - G6550WU - G6750WU - G6800 - G6900WU
Cleaning the Air Filter
You need to clean the projector's air filter in the following situations:
# The filter or vents get dusty.
# You see a message telling you to clean it.
# The projector's filter light flashes green.
1. Turn off the projector and unplug the power cord.
2. Slide the air filter cover latch and open the air filter cover.
3. Pull the air filter out of the projector
4. Tap each side of the air filter 4 to 5 times to shake off any excess dust.
Caution: Do not use excessive force when tapping the air filter, or it may crack and become unusable. Do not rinse the air filter in water, or use any detergent or solvent to clean it. Do not use canned air; the gases may leave a residue, or push dust and debris into the projector's optics or other sensitive areas.
5. Vacuum the front of the air filter (the side with the tabs) to remove any remaining dust.
Note: If dust is difficult to remove or the air filter is damaged, replace the air filter.
6. Place the air filter back in the projector as shown and push gently until it clicks into place.
7. Close the air filter cover.
Replacing the Lamp
Before you replace the lamp, let the projector cool down for at least one hour so the lamp will not be hot.
Warning: Let the lamp fully cool before replacing it to avoid injury.
You can replace the lamp while the projector is mounted to the ceiling, if necessary.
1. Turn off the projector and unplug the power cord.
2. Allow the projector lamp to cool down for at least one hour.
3. Use the screwdriver included with the replacement lamp to loosen the screws securing the lamp cover, and then remove the lamp cover.
Warning: If the lamp is broken, glass fragments may be loose inside the lamp chamber. Be careful removing any broken glass to avoid injury.
4. Loosen the screws securing the lamp to the projector. The screws do not come all the way out.
5. Hold the lamp by its handle and gently pull it out of the projector.
6. Gently insert the new lamp into the projector. If it does not fit easily, make sure it is facing the right way.
Caution: Do not touch any glass on the lamp assembly to avoid premature lamp failure.
7. Push in the lamp firmly and tighten the screws to secure it.
8. Replace the lamp cover and tighten the screws to secure it.
Resetting the Lamp Timer
You must reset the lamp timer after replacing the projector's lamp to clear the lamp replacement message and to keep track of lamp usage correctly.
Note: Do not reset the lamp timer if you have not replaced the lamp to avoid inaccurate lamp usage information.
1. Turn on the projector.
2. Press the Menu button.
3. Select the Reset menu and press Enter.
4. Select Reset Lamp Hours and press Enter.
You see a prompt asking if you want to reset the lamp hours.
5. Select Yes and press Enter.
6. Press Menu or Esc to exit the menus.

EPSON 3D HD PROJECTOR – EPSON EH-TW6600 – HOW TO REPLACE THE PROJECTOR LAMP – HOW TO CLEAN THE AIR FILTER – HOW TO RESET THE LAMP HOUR TIMER

Epson 3D HD Projector – Epson EH-TW6600 – How to replace the projector lamp – How to clean the air filter – How to reset the lamp hour timer

Cleaning the air filter

Do not use sprays that contain flammable gas to remove dirt and dust from the projector's lens, air filter, and so on. The projector may catch fire due to the high internal temperature of the lamp

Clean the air filter if dust has accumulated on the air filter or when the following message is displayed.
"The projector is overheating. Make sure nothing is blocking the air vent, and clean or replace the air filter.

Attention
# If dust collects on the air filter, it can cause the internal temperature of the projector to rise, and this can lead to problems with operation and shorten the optical engine's service life. It is recommended that you clean the air filter at least once every three months. Clean them more often than this if using the projector in a particularly dusty environment.
# Do not rinse the air filter in water. Do not use detergents or solvents.
# Lightly brush the air filter to clean it. If it is brushed too strongly, dust will be ground into the air filter and cannot be removed.

How to clean the air filter 

1.Press the POWER control or the control panel to turn off button on the remote the power, and then disconnect the power cord.

2.Remove the air filter cover.
Hook your finger into the tab on the air filter cover, and remove it downward.

3.Remove the air filter.

Grip the knob in the center of the air filter and pull it out.

4.Hold the air filter facing down and tap with the surface it 4 or 5 times to remove the dust.

Turn it over and tap the other side in the same way.

If the air filter is hit too hard, it may become unusable due to deformities and cracks.

5. Remove any dust remaining on the air filter by using a vacuum cleaner from the front side.

6. Install the air filter.

Grip the air filter by the knob in the center and insert it straight.

7. Install the air filter cover. Fasten the upper catch and then the lower one.

Clean the projector's surface by wiping it gently with a soft cloth.

If it is particularly dirty, moisten the cloth with water containing a small amount of neutral detergent, and
then firmly wring the cloth dry before using it to wipe the surface.

Lamp replacement period

The lamp replacement message is se and quality of the projected images. The message display time t to appear after 3400H in order to changes depending on the usage maintain the initial brightness situation, such as the color mode setting and so on.
If you continue to use the lamp after the replacement period has passed, the possibility that the lamp may explode increases. When the lamp replacement message appears, replace the lamp with a new one as soon as possible, even if it is still working.
Depending on the characteristics of the lamp and the way it has been used, the lamp may become darker or stop working before the lamp warning message appears. You should always have a spare lamp unit ready in case it is needed.

Replacing the lamp

When replacing the lamp because it has stopped illuminating, there is a possibility that the lamp may be broken. If replacing the lamp of a projector that has been suspended from the ceiling, you should always assume that the lamp is cracked, and remove the lamp cover with care. When you open the lamp cover, small shards of glass could fall out. If any shards of glass get into your eyes or mouth, contact a doctor immediately.

Do not touch the lamp cover immediately after turning off the projector as it is still hot. Wait until the lamp has cooled down sufficiently before removing the lamp cover. Otherwise, you could get burnt.

1. Press the POWER control or the control panel to turn off button on the remote the power, and then disconnect the power cord.

2. Loosen the lamp cover fixing screw

3. Remove the lamp cover. Slide the lamp cover straight forward and remove it.

4. Loosen the two lamp fixing screws.

5. Remove the old lamp.
Grip the knob firmly and pull it straight out.

6. Install the new lamp.

Make sure the lamp is facing the correct direction and press it in.

7. Tighten the two lamp fixing screws.

8. Replace the lamp cover.

Slide the cover back into place.

9. Tighten the lamp cover fixing screw.

Make sure you install the lamp and lamp cover securely. If they are not installed correctly, the power does not turn on.

Resetting lamp hours

1. Turn on the power.

2. Press the MENU button.
The Configuration menu is displayed.

3. Select Reset - Reset Lamp Hours.
A reset confirmation message is displayed.

4. Use RIGHT/LEFT the and then press the ENTER buttons to select button to Yes, execute.
The lamp hours are reset.

EPSON L-800 - L-801 - PRINTER - ADJUSTMENTS AFTER DISASSEMBLY OR REPAIR

EPSON L-800 - L-801 - PRINTER - ADJUSTMENTS AFTER DISASSEMBLY or REPAIR

ADJUSTMENTS

Adjustment Item	Purpose	Method Outline	Tool
PG adjustment	Install the Head Nozzle surface parallel to the printing surface and set the gap between the paper and the HeadNozzle surface to the specified value	Mechanical adjustment using the thickness gauges. Make a proper adjustment according to the result whether the manually-moved carriage (printhead) runs over or hits against the gauges placed on the platen.	Thickness Gauge 1.15 mm, 1.3 mm
EEPROM data copy	When the main board needs to be replaced, use this to copy adjustment values stored on the old main board to the new board. If this copy is completed successfully, all the other adjustments required after replacing the main board are no longer be necessary	Readout the EEPROM data from the main board before removing it. Then replace the board with a new one, and load the EEPROM data to the new board	Adjustment Program
Initial setting	This must be carried out after replacing the main board to apply settings for the target market. Whenthis function is performed, the upper limit value of the ink tube ounter is automatically set. With this function, the serial number written on the main board can be checked, and also writing the serial number to the main board can be performed when replacing the board	Select the target market. The selected market settings are automatically written to the main board. When writing the serial number, enter and re-enter (for confirmation) the printer serial number, then press the input button.	Adjustment Program
Head ID input	This must be carried out after replacing the print head in order to enter the new print head ID (Head ID) that reduces variation between print heads	Enter the ID printed on the Head QR code label attached on the print head. The correction values are automatically written to the main board.	Adjustment Program
Initialize PF deterioration offse	Resets the counter to maintain paper feed accuracy which decreases due to paper dust.	Reset the counter to its default	Adjustment Program
Disenable PF deterioration offset	When reading the counter value fromthe old main board is impossible in the case of replacing the board, use this to set the counter to its maximum value.	Set the counter to its maximum value (3000).	Adjustment Program
TOP margin adjustment	This corrects top margin of printout.	A top margin adjustment pattern is printed. Examine the lines printed near the top edge of the printout, and enter the value for the line that is exactly 3 mm away from the top edge.	[1]Adjustment Program [2] Ruler
Head angular adjustment	This must be carried out after replacing the print head in order to correct tilt of the print head by software	A head angular adjustment pattern is printed. Examine the printed lines and enter the value for the most straight lines	Adjustment Program
Bi-D adjustment	Corrects print start timing in bi-directional printing to improve the print quality	A Bi-D adjustment pattern is printed. Examine the patterns and enter the value for the pattern with no gap and overlap for each mode	Adjustment Program
First dot position adjustment	Corrects left margin of printout. The print start position in the carriage moving direction is corrected by software	A first dot adjustment pattern is printed. Examine the lines printed near the left edge of the printout and enter the value for the line that is exactly 5 mm away from the left edge	[1]Adjustment Program [2] Ruler
PW adjustment	This adjustment is made to correct the mounting position of the PW Sensor on a software basis to adjust the detection position and Nozzle position dispersion.	A PW adjustment pattern is printed. Examine the printout patterns and enter the value for the line that is exactly 5mm away from the paper edge for each of the left, right, top and bottom	Adjustment Program Ruler.
PF adjustment	Corrects variations in paper feed accuracy when using the Microweave to achieve higher print quality.	A PF adjustment pattern is printed. Examine the printout patterns and select the value for the best pattern. The correction value is registered.	Adjustment Program
BRS/PFP adjustment	This adjustment is made to ensure high print quality at high print speed.	Print the adjustment pattern to be scanned by a specified scanner. According to the scanned result, a correction value is automatically calculated and stored into the serial flash ROM on the main board. The correction value isapplied when printing in the corresponding mode. For some scanners, two PFP base scales are required	[1] Specified Scanner [2]  PFP base scale
CR motor heat protection control	This must be carried out for efficient heat control of the CR motor. Electrical variation of the motor and the power supply board are measured to acquire correction values for them	Select the parts that you replaced. The correction values are automatically written to the main board.	Adjustment Program

MAINTENANCE ITEMS

Maintenance Item	Purpose	Method Outline	Tool
Head cleaning	This function is used to execute Cleaning efficiently when ink is not delivered from the Head properly, e.g. dot missing	The cleaning can be selected from the normal cleaning or the power cleaning. Whether to reflect the discharged ink amount to the waste ink pad counter or not can also be selected as an option. The head cleaning is performed automatically. After the cleaning, print a nozzle check pattern to check if all nozzles are firing ink properly.	Adjustment Program
Maintenance counter	The printer causes a maintenance error when the maintenance counter (for the Waste Ink Tray, Waste Ink Pad Lower) reaches its maximum. Use this to reset the counter after replacing the Waste Ink Pad and Waste Ink Pad Lower, and use this to reset the ink tube counter when replacing the Ink Supply Tube. If you find the counter is close to the maximum during servicing, carry out the pad replacement and the counter reset to avoid the printer returned from the user due to the maintenance error	Select the replaced parts, and reset the corresponding counters.	Adjustment Program
Ink charge	This function is used to charge ink to the components composing the ink path such as Print head after replacing them	The ink charge can be selected from the charge to Print head only or the charge through Ink Tube, Adapter to Print head. Whether to reflect the discharged ink amount to the waste ink pad counter or not can also be selected as an option. Select the range to charge ink and options, and then press the execute button to execute the ink charge to the selected range automatically. After ink charge, print a nozzle check pattern to check if all nozzles are firing ink properly.	Adjustment Program
Small ink counter reset	When an ink out error occurs even though some ink is still in the Ink Supply Tank Assy (in the case when the ink counter in the printer and the actual ink remaining amount do not match), this function can decrease the ink counter (resetting the counter partially) to adjust the counter with the actual ink remaining amount	If the execute button is pressed, the ink counter value is automatically set. But if no ink out error is occurring, the message which says the function cannot be executed appears and no reset will be made.	Adjustment Program

Final check pattern print	A4 size US Letter size	Use this to check if the all adjustments have been properly made.	The all adjustment patterns are printed automatically.
EEPROM dump	Use this to readout the EEPROM data for analysis		The all EEPROM data is automatically readout and stored as a file

EPSON L800 - L801 - COLOR INKJET PRINTER - ERROR CODES DISPLAY

EPSON L800 - L801 - COLOR INKJET PRINTER - ERROR CODES DISPLAY

ERROR CODES

CLICK ON TABLES TO ZOOM IN

HOW TO REMOVE THE PRINTER MECHANISM - EPSON L800 - EPSON L801 - COLOR INKJET PRINTER

HOW TO REMOVE THE PRINTER MECHANISM - EPSON L800 - EPSON L801 - COLOR INKJET PRINTER

PRINTER MECHANISM REMOVAL

Be careful of the four sharp edges shown in the figure below when assembling or reassembling.

Printer Mechanism Handling Precaution

When lifting the printer, hold parts shown in the figure below to prevent the frame from deforming.

• Do not touch the PF Scale with bare hands or damage it.
• If the Printer Mechanism is tilted leftward about 15°, the PF Scale hits against the desk surface and can break. After removing the Printer Mechanism, take extra care to protect the PF Scale.
• When removing the Waste Ink Tube, take care not to contaminate the printer and surroundings with ink.
• Extra care must be exercised not to scratch or damage the Waste Ink Tube.

Pull out the Waste Ink Tube by hand.

• Release the Waste Ink Tube from the groove of the Waste Ink Tray.
• Release the CR Motor Cable from the two ribs of the Waste Ink Tray
• Disconnect the connector of the CDR Guide Sensor.

• Remove the five screws and remove the Printer Mechanism.

Screw : C.B.P.(P2) M3x8 (tightening torque:5-7 kgf.cm) (The numbers shown in the figure indicate the order of tightening the screws.)

When installing the Printer Mechanism, be careful of the following:

• Wipe off any ink on the joint portion of the Waste Ink Tube before reconnecting the tube. Ink on the joint portion makes the tube likely to get disconnected.
• Insert the Waste Ink Tube over the tube of the Waste Ink Tray until the top end of the Waste Ink Tube contacts with the rib.

• Match the positioning holes with guide pins (two pairs) shown.
• Tighten the screws in the order given.
• Make sure the Waste Ink Tube or cables are not pinched between the Printer Mechanism and the Housing Lower.
• Route the CDR Guide Sensor Cable through the opening.

HOW TO REMOVE PRINT-HEAD - EPSON L800 - EPSON L801 - COLOR INKJET PRINTER

HOW TO REMOVE PRINT-HEAD - EPSON L800 - EPSON L801 - COLOR INKJET PRINTER

HOW TO UNLOCK THE CARTRIDGE

Move the CR Unit to the center, open the Cartridge Cover and remove all Ink Cartridges.

While disengaging the hook of the Head FFC Cover with a flat-head screwdriver, slide the Head FFC Cover downward and remove it.

While disengaging the hook of the Head FFC Cover Inner with a flathead screwdriver, slide the Head FFC Cover Inner upward and remove it.

Using the special tool disengage the hook A of the Holder Contact on the left back of the Carriage Unit.

Using the special tool disengage the hook B of the Holder Contact on the right back of the Carriage Unit.

Slide the Holder Contact upward and remove the Holder Contact.

Take extra care not to spill ink and contaminate the surroundings.

Be extremely careful not to touch the nozzle surface, the ink supply needles and the Head Cover, otherwise the nozzles may get clogged.

Remove the three screws and remove the Printhead.

Screw : C.B.P. M2.6x8 (tightening torque: 3-5 kgf.cm)

(The numbers shown in the figure indicate the order of tightening the screws.)

Remove the two Head FFCs from the connectors on the back, and remove the Printhead.

{Special Tool}