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 vent. 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 except the cleaning wiper, 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.

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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.

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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.

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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.

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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.

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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 a long period (one week or more), perform Head cleaning once a week. If not performing Head cleaning, the print head is clogged. Doing so will preserve print quality.
•	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	Confirm that the media loading lever is returned to the front.

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

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

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

•	If you fail to remove blurs or incompleteness of printing in one Head cleaning, perform Long 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 poly-knit wiper to clean the cleaning wiper. For the poly-knit wiper, refer to "8.3 Options/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.

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•	"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.

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

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

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Press the [Enter] key on the operation panel.

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•	"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.

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

Open the front cover.

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No.

Name

Front cover

•

While 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 with a dry poly-knit wiper. A wet poly-knit wiper may cause the print head to clog.

Use the poly-knit wiper to remove the ink and dust on the cleaning wiper.

Cleaning wiper front side:
Remove the ink and dust to right and left.

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No.

Name

Cleaning wiper

Poly-knit wiper

Head cap unit

Cleaning wiper back side:
Remove the ink and dust upward.

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No.

Name

Cleaning wiper

Poly-knit wiper

Head cap unit

Close the front cover.

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No.

Name

Front cover

Press the [Enter] key on the operation panel.

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•	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.

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