Overview - Epson SC-B7000 Series Service Manual

SC-F7000 Series/SC-B7000 Series

5.1 Overview

This chapter provides information on how to maintain the printer in its optimum
operating condition.
Basically, servicing on the printer should be performed on-site. Be sure to strictly
observe the following precautions when servicing to avoid an accident or injury
causing the user trouble.
The power switch is installed on the secondary side of the
W A R N I N G
power circuit, so power is always supplied to the power supply
circuit even when the switch is OFF unless the power cord is
unplugged from the wall power outlet. Unless otherwise stated
(for printing or operation checks), be sure to unplug the power
cord from the wall outlet before disassembling or assembling
the printer to prevent electric shock and damage to the circuit.
The Front Sensor provided for detecting open/close status of
the Printer Cover also acts as a safety interlock switch. Never
disable the switch function to prevent possible injury.
A lithium battery is mounted on the Main Board (control
circuit) for memory backup. Be sure to observe the following
precautions when handling the Main Board.
• Be careful not to short the electrode of the battery.
When replacing the battery, make sure to insert it in correct
•
orientation.
Never heat the battery or plunge it into the flames.
•
• Do not put the Main Board directly on conductive materials.
Be extremely careful not to get the ink into your eye or let it
come into contact with your skin. If it happens, wash out your
eye or skin with water immediately. If any abnormality is
found, contact a physician.
MAINTENANCE
Ensure sufficient work space for servicing.
C A U T I O N
Locate the printer on a stable and flat surface.
When using compressed air products; such as air duster, for
cleaning during repair and maintenance, the use of such
products containing flammable gas is prohibited.
Be sure to spread a sheet of paper or cloth on the work space
before removing any ink-path-related parts or components to
keep the space from being soiled with leaked ink.
Do not touch electrical circuit boards with bare hands as the
elements on the board are so sensitive that they can be easily
damaged by static electricity. If you have to handle the boards
with bare hands, use static electricity discharge equipment such
as anti-static wrist straps.
When the printer has to be operated with the covers removed,
take extra care not to get your fingers or clothes caught in
moving parts such as the fan unit.
When the printer needs to be repacked for transportation after
being used, make sure to follow the steps below after turning
the power OFF.
Check that the Printhead is capped properly.
•
• Leave the ink cartridges installed in the printer.
• Repack the printer using the packaging box, cushioning
materials and protective equipment indicated in the
unpacking guide.
Overview
Revision A
124
Confidential