Remedies For Maintenance Requests; About The Maintenance Request Nnnn - Epson Stylus Pro 4910 Service Manual

Epson Stylus Pro 4900/Epson Stylus Pro 4910

2.2 Remedies for Maintenance Requests

This section describes the remedies for maintenance requests. Maintenance requests do not effect the printer's operation; therefore, you can continue the current printing. When a
maintenance request error occurs, the printer displays on the LCD a hexadecimal code of "NNNN" which correspond to the bit numbers assigned to error statuses as shown in the
table below.
Bit assignment (Binary)
15 14 13 12 11 10 9
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 1 0
0 0 0 1 0 0 0
0 1 0 0 0 0 0
0 0 0 0 0 0 0
Note : Ex): When "Maintenance Request 0088" is displayed.
As "0088" in hexadecimal means "1000 1000" in binary, you can find out the code is assigned to Bit-3 and Bit-7 referring to the above table. In this case, two errors are
occurring simultaneously. (Bit-3: battery exhaustion/ Bit-7: the date and time has not been set.)
TROUBLE SHOOTING
Table 2-1. About the Maintenance Request NNNN
8 7 6 5 4 3 2
0 0 0 0 0 0 0
0 0 0 0 0 1 0
0 0 0 0 1 0 0
0 0 1 0 0 0 0
0 1 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 1 0 0 0 1 0
Remedies for Maintenance Requests
NNNN
(Hexa- Cause
1 0
decimal)
The CR scan pass counter has come near
1 0 0002 the specified life. (Six million passes = the
end of life of the Ink Supply Tube.)
The RTC backup battery on the Main
0 0 0008
Board reached the end of its life.
0 0 0010 (Non-recoverable AID error due to breakdown) See
The pump counter has come near the
0 0 0040 specified life. (The end of the IS Unit's
life.)
0 0 0080 The date has not been set.
Operations of the diaphragm in the
0 0 0800 Cartridge Holder comes near the specified
life (The end of the Cartridge Holder's life).
The number of operation counter of the Ink
0 0 1000
Selector has come near the specified life.
0 0 4000 (All nozzle clogging error) See
The RTC backup battery becomes
0 0 (e.g.) 0088
exhausted and the date has not been set.
Remedy
Replace the following parts and reset the counter of the
CR Motor.
Ink Tubes
CR Motor
Head FFC
Oil Pad
Replace the battery and set data and time.
" Remedy for No. 0010/4000 (p50)"
Replace the IS Unit and reset the counter.
Set date and time.
Check which Cartridge Holder (the left one or the right
one) has trouble with the NVRAM Viewer. Replace the
Cartridge Holder and reset the counter.
Replace the Ink Selector and reset the counter.
" Remedy for No. 0010/4000 (p50)"
.
Carry out the remedy for 0008 and 0080.
Revision A
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