Service Maintenance - Epson Stylus Photo 1390 Service Manual

EPSON Stylus Photo 1390/1400/1410

6.1.3 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.
6.1.3.1 Head Cleaning
The printer has a built-in head cleaning function, which is activated by operating the
control panel.The procedure is given below.
1. Confirm that the printer is in a stand-by state.
Check that the Power LED is not flashing.
2. Hold down the Ink button on the control panel for more than 3 seconds.
The Power LED flashes during the cleaning sequence.
For Head Cleaning, it is recommended to run the nozzle check and
C H E C K
P O I N T the cleaning alternately to minimize ink consumption.
MAINTENANCE
6.1.3.2 Maintenance Request
Ink is used for printing and Head Cleaning. Waste ink is drained into the Waste Ink
Pads via the Cap Unit, and its amount is stored into the EEPROM's Protection Counters
(Waste Ink Counter) A and B (located near the home position or the opposite side).
When the preset value is reached, the Waste Ink Counters detect that the Waste Ink
Pads have reached the absorption limit. The printer displays "Maintenance Request" to
request the Waste Ink Pads to be replaced.
Protection Counter A+B Limit
Up to 17455
Timing for Replacing the Waste Ink Pads
When the Protection Counter reaches the value shown above, a Maintenance
Request is indicated, and the printer disables all switches except the Power
button.
Since the Protection Counter value can be confirmed in the adjustment
program, be sure to check the value when servicing regardless of whether the
service is related to the Waste Ink Pad or not. If the Protection Counter value
of that printer is close to its limit, inform the user, and replace the Waste Ink
Pads and reset the Counters with the user's permission. (If the Waste Ink Pads
are not replaced at that time, it is expected that the printer will be returned for
repair in the near future due to a Maintenance Request error.)
Under specific conditions, the limit level of the counter is preset to 25000
pages for black ink and to 10000 pages for color ink. We assume that the limit
level will be reached in about 5 years at normal usage.
Replacement Procedure
Replacement of Waste Ink Pads in Disassembly and Assembly
(Refer to 4.2.2 "Waste Ink Pad" on page
After the Replacement
Reset the Protection Counter (Refer to Chapter 5 "ADJUSTMENT")
Overview
Revision B
84.)
150