Overview; Preliminary Check; Troubleshooting Procedure - Epson Stylus Pro 3800 Service Manual

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890

3.1 Overview

This section explains the basic procedure for troubleshooting problems on the printer
quickly and efficiently.

3.1.1 Preliminary Check

Make sure to verify or perform the following basic items whenever servicing the
printer.
1. There is no foreign material which interferes with the proper operation of the
printer.
2. Print the status sheet, and check the information printed on the sheet to find out
possible causes of the error; if the main units have reached their end of life, or if
there is something wrong with the user-defined panel settings.
3. Both outside and inside of the printer are free of significant dirt. Clean it if
significant dirt is observed.
4. None of the parts or components of the printer are missing, chipped or damaged.
5. All of the harnesses are free of damages and properly connected to their
connectors.
6. The cams and gears in the printer mechanism are engaged correctly showing no
signs of wear.
7. When smudges appear on printed pages, clean the rubber rollers in the printer
mechanism if it solves the problem.
8. The rubber rollers in the printer mechanism are engaged correctly showing no
signs of wear.
9. Initialize the NVRAM on the C635 main board (reset the user-defined panel
settings to their factory default) if necessary.
Execute the DEFAULT PANEL in the Maintenance mode.
TROUBLE SHOOTING
When handling the lithium battery used for backup of the RTC on
W A R N I N G
the main board, strictly follow the safety instructions given in
"4.1.1 Precautions"
Before disassembling/reassembling the printer, be sure to turn
C A U T I O N
the power OFF, confirm the panel display disappears, and
unplug the power code.
Be sure to use the specified tools for maintenance/repair.
To maintain the product's quality, be sure to use the specified
lubricant and adhesive.
Be sure to perform the adjustments as required.

3.1.2 Troubleshooting Procedure

Follow the flowchart given below to troubleshoot problems efficiently.
Occurrence of Troubles
Error message is
displayed on the LCD
(Page 63)
Warning message is
displayed
(Page 68)
Overview
(p86).
Print Quality Troubles
(Page 82)
Error message is Service Call message is
displayed displayed
(Page 66) (Page 74)
Revision C
62