Periodic (every month) cleaning is necessary to use the printer in good condition.

•	Do not insert or drop metal or flammable objects into the printer through openings such as a fresh air inlet. It could lead to an electric shock or fire.
•	If foreign substances or liquids such as water entered the printer, do not use the printer as it is. It could lead to an electric shock or fire. Immediately turn OFF the power switch, disconnect the power plug from the electric socket, and contact your local MUTOH dealer.

•	When cleaning the printer, be sure to turn OFF the power and disconnect the power plug.
•	Do not use volatile solvents such as thinner, benzene, or alcohol. These solvents could cause damage to the paint.
•	Be careful that no moisture enters the printer. There is a possibility that the electric circuit inside the printer is short circuited.
•	Do not open covers attached using screws under any circumstances. This may cause an electric shock or a malfunction.

This section describes how to clean each part of the printer.

6.2.1 Cleaning the outer case

This sub-section describes how to clean the outer case.

Wipe out dust and dirt attached to the outer case by using a soft cloth.

$graphics\VJ1604A605A.gif$

6.2.2 Cleaning the inside of the printer

This sub-section describes how to clean the inside of the printer.

Follow the procedure below.

Open the front cover.

$graphics\VJ1604A400A.gif$

No.

Name

Front cover

Remove paper powder and dust attached to the pressurizing rollers using a soft brush.

•	Do not blow paper powder inside the printer using tools such as an air duster. It may cause an abnormal noise from the inside of the printer.

$graphics\VJ1604A606A.gif$

No.

Name

Pressurizing rollers

Apply a damp and tightly squeezed soft cloth to wipe out paper powder and ink attached to the platen and media guide.

$graphics\VJ1604A607A.gif$

No.

Name

Platen

Media guide

Apply a damp and tightly squeezed soft cloth to wipe off the dirt of the unpainted (silver color) area in the center of the grid roller.

$graphics\VJ1604A608A.gif$

No.

Name

Grid roller

6.2.3 Head cleaning

If printed data is blurred or lacks part of it, clean the print head surface and nozzle (Head cleaning).

Follow the procedure below to perform Head cleaning.

•	When not using the printer for over one week, perform head cleaning once a week. Otherwise, the print heads may become clogged and impossible to obtain best printing result.
•	Remove media when cleaning. Cleaning with media loaded may lead to contact between the print head and media.

1	Confirm that the operation panel is Normal.

2	Check that the media loading lever is lowered.

Press the [>] key on the operation panel to select the cleaning mode.

$graphics\VJ1204P008J.gif$

Press the [Cleaning] key on the operation panel for at least 2 seconds.

$graphics\VJ1204P012J.gif$

•	Start Head cleaning.
•	"Cleaning **%" is displayed on the operation panel.
•	After Head cleaning is complete, the operation panel shifts to Normal.

•	If blurs or lacking parts in printed media do not disappear with one time of Head cleaning, perform Strong cleaning.
•	If blurs or lacking parts in printed media do not disappear with several times of Head cleaning, refer to "7 Troubleshooting ", and take appropriate measures.

6.2.4 Cleaning the cleaning wiper

This sub-section describes how to clean the cleaning wiper.

(1) Cleaning time

Once a week, or when blurs or lacking parts appear on printed media after Head cleaning.

(2) Cleaning method

Follow the procedure below to clean the cleaning wiper.

•	Use the cleaning stick to clean the cleaning wiper. For details of the cleaning stick, refer to "8.3 Supply list ".

If the printer is turned ON, make sure the following.

•	Printing or other operations are not in progress.
•	The operation panel display is Normal.

Display the CR Maintenance menu on the operation panel.

Press the [Menu] key on the operation panel.

$graphics\VJ1204P001J.gif$

•	"Menu 1: Setup>" is displayed on the operation panel.
•	The operation panel shifts to the Setup menu display.

Press the [>] key on the operation panel.

$graphics\VJ1204P008J.gif$

•	"Set1: MediaType" is displayed on the operation panel.

Press the [+] key or [–] key to select "Set20: CR Maintenance".

$graphics\VJ1204P003J.gif$

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	"CR Mainte.: Start" is displayed on the operation panel.
•	The display enters the CR Maintenance menu. $graphics\nzilg007.gif$ 5.1.18 CR Maintenance menu

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	Maintenance starts.
•	The print head moves to the left.
•	The cleaning wiper moves forward.
•	"CR Maintenance: End" is displayed on the operation panel.

Open the maintenance cover on the right of the printer.

$graphics\VJ1604A609A.gif$

No.

Name

Maintenance cover

•

When cleaning the cleaning wiper

•	Do not touch the cleaning wiper and head cap unit. Head cleaning may not be performed correctly because of oil from your hands.
•	Make sure to wipe the print head using the cleaning stick. A wet cleaning stick may cause the print head to clog.
•	Do not reuse the cleaning stick. Dust attached to the stick may damage the print head.

Use the cleaning stick to remove the ink and dust on the cleaning wiper.

Cleaning wiper front side:
Wipe horizontally.

$graphics\VJ1604A619A.gif$

No.

Name

Cleaning wiper

Cleaning stick

Head cap unit

Cleaning wiper back side:
Wipe vertically.

$graphics\VJ1604A620A.gif$

No.

Name

Cleaning wiper

Cleaning stick

Head cap unit

Close the right maintenance cover.

•	Close the cover firmly until it is locked.

$graphics\VJ1604A611A.gif$

No.

Name

Maintenance cover

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	The print head returns to its original position.
•	The cleaning wiper returns to its original position.
•	"CR Mainte.: Start" is displayed on the operation panel.

Press the [Cancel] key on the operation panel several times.

$graphics\VJ1204P005J.gif$

•	The printer enters Normal.
•	Cleaning of the cleaning wiper is complete.

6.2.5 Cleaning around the print head

This section describes how to clean around the print head.

(1) Cleaning time

When foreign objects, such as dust or ink causing omitted dots or ink drops are attached around the print head.

(2) Cleaning method

Follow the procedure below to clean around the print head.

•	Before starting to clean around the print head, read and understand this procedure, then clean promptly and accurately.
•	When cleaning around the print head, the print head cap must be removed and cleaning must be complete before the head dries. The recommended time for cleaning is about 15 minutes. If cleaning exceeds 15 minutes, discontinue it by following steps 7 and 8. Perform Head cleaning, and then start cleaning around the print head again. $graphics\nzilg007.gif$ 6.2.3 Head cleaning
•	Use the cleaning stick to clean around the print head. For details of the cleaning stick, refer to "8.3 Supply list ".

If the printer is turned ON, make sure the following.

•	Printing or other operations are not in progress.
•	The operation panel display is Normal.

Display the CR Maintenance menu on the operation panel.

Press the [Menu] key on the operation panel.

$graphics\VJ1204P001J.gif$

•	"Menu 1: Setup>" is displayed on the operation panel.
•	The operation panel shifts to the Setup menu display.

Press the [>] key on the operation panel.

$graphics\VJ1204P008J.gif$

•	"Set1: MediaType" is displayed on the operation panel.

Press the [+] key or [–] key to select "Set20: CR Maintenance".

$graphics\VJ1204P003J.gif$

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	"CR Mainte.: Start" is displayed on the operation panel.
•	The display enters the CR Maintenance menu. $graphics\nzilg007.gif$ 5.1.18 CR Maintenance menu

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	Maintenance starts.
•	The print head moves to the left.
•	"CR Maintenance: End" is displayed on the operation panel.

Open the left maintenance cover.

$graphics\VJ1604A612A.gif$

No.

Name

Maintenance cover

Confirm, using a light such as a penlight, that there are no foreign objects, such as dust or ink attached to the following parts:

$graphics\VJ1604A621A.gif$

No.

Name

Around the print head

Head guide area

Nozzle

Dust, ink mass

•

When cleaning around the print head

•	Do not touch the nozzle of the print head. Doing so may damage the print head.
•	Do not touch the head of the cleaning stick. Oil on your hands may attach to the cleaning stick, causing damage to the print head.
•	Do not immerse the head of the cleaning stick in water. Doing so may damage the print head.
•	Do not reuse the cleaning stick. Dust attached to the stick may damage the print head.

If foreign objects, such as dust or ink are attached to the print head, remove them using the cleaning stick.

$graphics\VJ1604A622A.gif$

No.

Name

Around the print head

Head guide area

Nozzle

Cleaning stick

Close the left maintenance cover.

•	Close the cover firmly until it is locked.

$graphics\VJ1604A617A.gif$

No.

Name

Maintenance cover

Press the [Enter] key on the operation panel.

$graphics\VJ1204P004J.gif$

•	The print head returns to its original position.
•	"CR Mainte.: Start" is displayed on the operation panel.

Press the [Cancel] key on the operation panel several times.

$graphics\VJ1204P005J.gif$

•	The printer enters Normal.
•	Cleaning around the print head is complete.