EPSON Stylus Pro 7400/7800/9400/9800
Revision B
Troubleshooting
Troubleshooting based on Panel Messages
178
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
INK LOW
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.
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.
Item
Description
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.
Item
Description
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.
Table 3-3. Bit Assignments
Bit
Assigned Error Condition
Remark
0
The waste ink tank reached its end of life.
This does not occur on the printer.
1
The CR Motor reached its end of life.
The number of carriage movement
cycles reached the specified value.
2
Ignores nozzle check error
This does not occur on the printer.
3
Battery exhaustion
The RTC backup battery run down.
4
Dot missing detection device AGC error
This does not occur on the printer.
5
Head Unit reached its end of life.
This does not occur on the printer.
6
The Cleaning Unit reached its end of life.
The pump counter reached the
specified upper limit.
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.
This does not occur on the printer.
10
The Pressure Pump reached its end of life.
The Pressure Pump counter reached
the specified upper limit.
11-31
Reserved
---
Summary of Contents for Stylus Pro 7400
Page 1: ...EPSONStylusPro7400 7800 9400 9800 Large Format Color Inkjet Printer SERVICE MANUAL SEIJ05002 ...
Page 10: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 147: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 170: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 207: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 292: ...C H A P T E R 5 ADJUSTMENT ...
Page 373: ...C H A P T E R 6 MAINTENANCE ...
Page 380: ...C H A P T E R 7 APPENDIX ...
Page 385: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 1 of 4 Revison G ...
Page 386: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 2 of 4 Revison F ...
Page 387: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 3 of 4 Revison F ...
Page 388: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 4 of 4 Revison E ...
Page 389: ...Model PX 7500 7500S 9500 9500S Board C594 SUB Sheet 1 Revison C ...
Page 390: ...Model PX 7500 7500S 9500 9500S Board C594 SUB B Sheet 1 Revison E ...
Page 391: ...Model PX 7500 7500S 9500 9500S Board C594 SUB C Sheet 1 Revison D ...
Page 392: ...Model PX 7500 7500S 9500 9500S Board C594 PNL Sheet 1 Revison D ...
Page 396: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 03 R ev 01 C594 E LE C 011 202 201 200 ...
Page 397: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 04 R ev 01 C594 E LE C 021 203 204 ...
Page 398: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 05 R ev 01 C594 POWE 011 300 301 302 ...
Page 403: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 10 R ev 01 C594 ME CH 051 700 701 X15 700 ...
Page 410: ...R ev 01 C595 E LE C 011 200 201 202 PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 03 ...
Page 411: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 04 R ev 01 C595 E LE C 021 204 203 ...
Page 412: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 05 R ev 01 C595 POWE 011 300 302 301 ...
Page 417: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 10 R ev 01 C594 ME CH 051 701 X15 700 700 ...