Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Overview 47
Confidential
2.1 Overview
This section explains the basic procedure for troubleshooting problems on the printer
quickly and efficiently.
When carrying out the troubleshooting procedures, take a flexible measure following
your sales company's policy and considering the troubling situation.
2.1.1 Preliminary Check
Make sure to verify or perform the following basic items whenever servicing the
printer.
2.1.1.1 Check for the usage environment
Check the user's usage environment.
Temperature/humidity of the installation site
(For the guaranteed environment, see P.14.)
Drivers/RIP that the user uses
Genuine media or 3rd party's media?
Genuine ink or 3rd party's ink?
F/W version (the latest?)
Check also the following if necessary.
2.1.1.2 Recurrence check of the trouble
Check if the trouble the user claims recurs with the returned printer.
If RIP was used, check if the trouble recurs when the driver is used.
If 3rd party's media were used, check if the trouble recurs when the genuine
media is used.
If 3rd party's ink was used, check if the trouble recurs when the genuine ink is
used.
If the F/W was not the latest, check if the trouble recurs when the latest F/W is
used.
2.1.1.3 Check for the counter values/history
Download NVRAM and check the following with NVRAM Viewer. (For the check
method, see P.303.)
Counter history of the periodic replacement parts. (if any part's life is near.)
Printer's operating history (if any cause for the trouble exists)
Error history (the frequency/history of errors related with the trouble)
2.1.1.4 Test print check
For the trouble related with print quality, carry out “Test Print” and check the current
adjustment status. (For the procedure of test print, see P.309.)
Phenomenon Check Item
Bad print quality
The installation site inclined?
Any vibrating equipment near the site?
The user's panel settings
Is the interior dirty?
Clean it if dirty.
Missing dots/bad print quality Near a conditioner's ventilation duct?
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