Epson R310 service manual At operation

EPSON Stylus Photo R300/R310 Revision A

Table 1-14. Check Points for Defective Print Quality

Occurrence Timing

Position of CR

Phenomenon Detail

Faulty Part/

Part Name

Check Point

Remedy

At operation

-

	Frame EJ Assy.	1.	Check if the surface of "Frame EJ Assy." is precisely	1.	Replace "Frame EJ Assy." with a new one.
Banding phenomenon occurs in a			horizontal.
direction perpendicular to "Carriage		1.	Check if "Print Head" prints correctly with the Nozzle	1.	Perform the Head Cleaning, then check the
Unit" movement getting uneven print	Print Head		Check Pattern.		Nozzle Check Pattern.
density.					* If the problem is not solved, replace "Print
					Head" with a new one.

Banding phenomenon occurs in a		1.	Check if there is not any foreign matter on the surface of	1.	Clean the surface of "PF Roller".
direction horizontally to "Carriage Unit"			"PF Roller".
movement.	PF Roller	2.	Check if "PF Roller" is not damaged.	2.	Replace "Printer Mechanism" with a new
					one.
Direction of
		3.	Check if "Spur Gear, 37.242" is not damaged or broken.	3.	Replace "Printer Mechanism" with a new
CR movement
					one.
	Printer Driver and	1.	Check if appropriate paper is used in accordance with the	1.	Use the appropriate type of paper in
	Special Paper		Printer Driver settings.		accordance with the Printer Driver.
		1.	Check if "Print Head" prints correctly with the Nozzle	1.	Perform the Head Cleaning, then check the
			Check Pattern.		Nozzle Check Pattern.
(Note)	Print Head				* If the problem is not solved, replace "Print
If the problem is not solved, replace "PF					Head" with a new one.
Motor" with a new one.
Banded stripes appear in a direction		1.	Check if "porous pad" in front of "Paper Guide, Front"	1.	Reattach "porous pad".
horizontally to "Carriage Unit"			has not come off.
movement.

Paper Guide, Front

These stripes appear when the print paths overlap each other.

TROUBLESHOOTING Unit Level Troubleshooting 28