Epson SX105, TX105, SX100, TX100, NX105, ME 300, TX101, TX106, TX109, TX102, TX103 service manual Tbd

Epson STYLUS NX100/NX105/SX100/SX105/TX100/TX101/TX102/TX103/TX105/TX106/TX109/ME 300 Revision A

Table 3-12. Check point for the defective printing quality

Print Quality State

Detailed phenomenon

Defective

unit/part name

Check point

Remedy

			1. Check if the Head FFC is securely connected to the						1. Connect the Head FFC to the Printhead and the
			Printhead Connectors and the Main Board Connectors.						Main Board Connectors.
			(J8, J9)
				Printhead
						J9	J8
		Head FFC
• White streak /	Ink is ejected to the Cap from the
	Printhead, but printing is not done at all
abnormal discharge	after cleaning or ink change, or
	abnormal discharge occurs.
								Head
								FFC
					Connector
			2. Check if the Head FFC is damaged.						2. Replace the Head FFC with a new one.
		Printhead	1. Check if it returns to normal by performing CL operation						1. Perform CL operation and the Ink Cartridge
			or replacing the Ink Cartridge.						replacement specified times. If it doesn’t work,
									change the Printhead with a new one.

	Main Board Unit	1.	Check if the Main Board is damaged.	1.	Replace the Main Board Unit with a new one.
	Adjustment	1.	For printing in the Bi-D mode, check if Bi-D Adjustment	1.	Perform Bi-D Adjustment to correct print start
			has been performed properly.		timing in bi-directional printing. (Refer to
	Vertical banding appears against the CR				Chapter 5 “ADJUSTMENT” (p.100).)
	movement direction. And, it looks like	1.	Check if the Nozzle Check Pattern is printed properly.	2.	Perform Head Cleaning and check the Nozzle
	uneven printing.
					Check Pattern. (Refer to Chapter 5
	Printhead
					“ADJUSTMENT” (p.100).)
	CR movement				If the problem is not solved, replace the
• White streak / color	direction				Printhead with a new one.
unevenness		1.	Check if there is any foreign material on the Carriage	1.	Remove foreign material from surface of the
occurrence
			path.		Carriage path.
	Main Frame	2.	Check if the Main Frame is deformed.	2.	Replace the Main Frame with a new one.
		3.	Check if the grease is enough on the Carriage path of the	3.	After wiping the grease G-71 on the Carriage
	[Note]
			Main Frame. (TBD)		path with a dry, soft cloth, coat it with grease.
	If the problem is not solved, replace the
					(Refer to Chapter 6 “MAINTENANCE”
	CR Motor with a new one.
					(p.108).) (TBD)
	EJ Frame Assy	1.	Check if the EJ Frame is deformed.	1.	Replace the EJ Frame Assy with a new one.

TROUBLESHOOTING Error Indications and Fault Occurrence Causes 49

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