Service manual

EPSON Stylus Photo R340/350 Revision A
Maintenance Overview 112
4.1 Overview
This section provides information to maintain the printer in its optimum condition.
4.1.1 Cleaning
This printer has no mechanical components which require regular cleaning except the
Print Head. When servicing, check the following parts and perform appropriate
cleaning if stain is noticeable.
 Housing
Use a clean soft cloth moistened with water and wipe off any dirt. If the Housings
are stained with ink, use a cloth moistened with neutral detergent to wipe it off.
 Inside the printer
Use a vacuum cleaner to remove any paper dust.
 LD Roller
When the paper loading function does not operate because friction of the LD
Roller has gone down due to paper dust, remove the dust by using a soft brush or
soft cloth moistened with alcohol.
4.1.2 Service Maintenance
If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates
“Maintenance Error”, take the following actions to clear the error.
 Head Cleaning
If dot missing or banding phenomenon has occurred, use the Head Cleaning
function and perform the Print Head cleaning operation.* This function can be
performed by operating the control panel, the printer driver utility and the
Adjustment Program.
* This product has three modes for Manual Cleaning, and it automatically selects
the best cleaning mode in accordance with the various conditions and performs
the operation. Therefore, the consumption of the ink by the manual cleaning
will vary according to the selected mode for the condition.
 Maintenance Error
This error appears when the protection counter (for the Waste Ink Pad) reaches the
upper limit (limit of the Waste Ink Pad). The Waste Ink Pad is used to absorb the
waste ink produced by printing, cleaning and flushing. The amount of the waste
ink is counted in the EEPROM to cause the error to prevent the Waste Ink Pad
from overflow. The counter value fluctuates depending on the frequency of use as
this model calculates the loss of waste ink by evaporation to reflect the amount to
the counter.
Figure 4-1. Maintenance Error Displayed on the LCD
When the maintenance error occurs, replace the Waste Ink Pad with a new one and
reset the protection counter using the Adjustment Program.
If you find the counter is close to its limit, replace the Waste Ink Pad and reset the
counter to save the user from having to send the printer for repair again due to the
maintenance error.
C A U T I O N
 Never use chemical solvents, such as thinner, benzine, and
acetone to clean the exterior parts of the printer like the
housing. These chemicals may deform the components of the
printer or deteriorate the quality of the printer.
 Be careful not to damage any components when you clean inside
the printer.
 Do not scratch the surface of the PF Roller. Use a soft brush to
wipe off dust. Use a soft cloth moistened with alcohol to remove
ink stain.
 When using compressed air products; such as air duster, for
cleaning during repair and maintenance, the use of such
products containing flammable gas is prohibited.
Service required.
Parts inside your printer are at the end
of their service life.
See your manual for details.