Overview; Preliminary Check; Check For The Usage Environment; Recurrence Check Of The Trouble - Epson Stylus Pro 4910 Service Manual

Epson Stylus Pro 4900/Epson Stylus Pro 4910

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,
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.
Phenomenon
Bad print quality
Missing dots/bad print quality
TROUBLE SHOOTING
see P.14.)
Check Item
The installation site inclined?
Any vibrating equipment near the site?
The user's panel settings
Is the interior dirty?
Clean it if dirty.
Near a conditioner's ventilation duct?

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,
Overview
Revision A
see P.309.)
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