Epson Stylus Pro 7500 - Outline; Introduction

EPSON Stylus Pro 7500 Revision A
Troubleshooting Outline 76
3.1 Outline
This section explains procedures for rapid and efficient troubleshooting if trouble occurs in
the printer.
3.1.1 Introduction
First of all, when performing troubleshooting, the following basic parts should be checked.
1. Look in the printer for any foreign matter and make sure there is nothing there to
hinder normal operation.
2. Carry out printing by setting the printer in the “Pause” state, then press the [SelecType]
button 2 times. Next using the [Paper Feed] switch in the “TEST PRINT MENU,”
select “ATATUS CHECK”, then press the [Enter] switch and print.
From the status sheet, you can check if the cause of the trouble is that the printer (either
the printer unit itself or some major unit) is at the end of its service life, and check the
user inherent panel settings, etc.
3. There should be no market soiling of the outside or the inside of the printer. If it is
extremely soiled, carry out cleaning.
4. Each of the units and parts in the printer should not be missing or damaged, and should
have the normal shape and configuration.
5. Each of the harnesses should be undamaged, and should be correctly connected to the
relevant connector (perpendicularly and in the correct direction).
6. Each cam and gear in the printer mechanism should have no uneven wear or be overly
worn, and the combinations should be correct.
7. Each type of rubber roller in the printer mechanism should be cleaned and it should be
ascertained whether the cause of the trouble is because of dirt or due to some other
cause.
8. Each type of rubber roller in the printer mechanism should not be unevenly worn or
excessively worn, and their combinations should be correct.
9. As necessary, initialize the NVRAM on the C299MAIN board (return the individual
customer settings and panel settings to the factory settings).
Carry out initialization by executing “INIT. NVRAM” from the “CLEAR
COUNTERS MENU” in “Maintenance Mode 2.”
CHECK
PO INT
When disassembling the printer, turn the printer’s power switch Off,
then after making sure that the panel display is off, pull out the power
cable from the outlet and disconnect the interface cable.
CAUTION
1. Only the specified printer tools should be used so as to maintain the
printer’s quality.
2. Only the specified lubricants and adhesives should be used.
3. The specified adjustments should definitely be carried out.