Remedies For Warning Messages - Epson Stylus Pro 7400 Service Manual

EPSON Stylus Pro 7400/7800/9400/9800

3.2.2 Remedies for Warning Messages

When a Warning error occurs, the printer displays a Warning message instead of
"READY" or "PRINTING" messages, however, it does not interfere with printing
operation.
The Warning message does not disappear unless the cause of it is eliminated.
The following tables explains the Warning messages and remedies.
MAINTENANCE TANK NEARLY FULL
Item
Description The Maintenance Tank is in near full state
LED Indication Ink Check LED: Flashing
Cause Remaining space of the Maintenance Tank became lower than 10
percent of its full capacity.
Remedy Replace the Maintenance Tank with a new one.
INK LOW
Item
Description The remaining amount of ink is low.
LED Indication Ink Check LED: Flashing
Cause The remaining amount of ink became lower than the specified value.
Remedy Replace the ink cartridge with a new one.
Troubleshooting
Description
Description
Troubleshooting based on Panel Messages
MAINTENANCE REQUEST XXXX
Description
A maintenance is required.
LED Indication
Paper Check LED: Lights for a moment at intervals of five seconds.
Displayed Code
The "NNNN" is a hexadecimal code which correspond to the bit numbers assigned
to error conditions as shown in the table below.
Table 3-3. Bit Assignments
Bit Assigned Error Condition
0 The waste ink tank reached its end of life.
1 The CR Motor reached its end of life.
2 Ignores nozzle check error
3 Battery exhaustion
4 Dot missing detection device AGC error
5 Head Unit reached its end of life.
6 The Cleaning Unit reached its end of life.
7 The date and time has not been set.
8 A momentary drop in voltage of the RTC
backup battery
9 The Paper Feed Roller reached its end of
life.
10 The Pressure Pump reached its end of life.
11-31 Reserved
Note "*": The bit number is reserved.
Description
The most of the MAINTENANCE REQUEST errors indicate near-end of life
status of the part or unit.
Revision B
Remark
This does not occur on the printer.*
The number of carriage movement
cycles reached the specified value.
This does not occur on the printer.*
The RTC backup battery run down.
This does not occur on the printer.*
This does not occur on the printer.*
The pump counter reached the
specified upper limit.
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This does not occur on the printer.*
The Pressure Pump counter reached
the specified upper limit.
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