Epson ET-4550, Руководство по обслуживанию

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Confidential Confidential
Safety Precautions Safety Precautions
All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this
product. product.
DANGER DANGER
Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life. Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life.
1. 1. Always di Always disconn sconnect the prod ect the product from th uct from the power sou e power source and peri rce and peripher pheral device al devices when servic s when servicing the pro ing the product or duct or
performing maintenance. performing maintenance.
2. 2. When per When performi forming works de ng works describe scribed in this manual d in this manual, do not conne , do not connect to a power sour ct to a power source until inst ce until instructed to do so ructed to do so..
Connecting to a power source causes high voltage in the Connecting to a power source causes high voltage in the power supply unit and some electronic components power supply unit and some electronic components
even if the product power switch is off. If you need to perform the work with the even if the product power switch is off. If you need to perform the work with the power cable connected to a power cable connected to a
power source, use extreme caution power source, use extreme caution to avoid electrical shock. to avoid electrical shock.
WARNING WARNING
Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life. Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.
1. 1. Always wea Always wear protec r protective gog tive goggles for dis gles for disassemb assembly and reass ly and reassembly to pr embly to protect yo otect your eyes fro ur eyes from ink in workin m ink in working. If g. If
any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately. any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.
2. 2. When usin When using compre g compressed air pro ssed air products; su ducts; such as air duster ch as air duster, for cleani , for cleaning durin ng during repair and ma g repair and mainten intenance, the use ance, the use
of such products containing flammable gas is of such products containing flammable gas is prohibited. prohibited.
PRECAUTIONS PRECAUTIONS
Strictly observe the following cautions. Failure to Strictly observe the following cautions. Failure to comply may lead to personal injury or damage comply may lead to personal injury or damage of the product. of the product.
1. 1. Repai Repairs on Epso rs on Epson produ n product shou ct should be perf ld be performed o ormed only by an Ep nly by an Epson cert son certified re ified repair tec pair technicia hnician. n.
2. 2. No work shou No work should be perfo ld be performed on this pr rmed on this produc oduct by persons un t by persons unfamili familiar with basic saf ar with basic safety know ety knowledge re ledge require quired for d for
electrician. electrician.
3. 3. The powe The power rating o r rating of this prod f this product is indic uct is indicated on the se ated on the serial num rial number/r ber/rating pl ating plate. Neve ate. Never connec r connect this prod t this product to uct to
the power source whose voltages is the power source whose voltages is different from the rated voltage. different from the rated voltage.
4. 4. Repla Replace malfun ce malfunction ctioning comp ing component onents only with tho s only with those compon se components prov ents provided or appr ided or approved by Eps oved by Epson; on;
introduction of second-source ICs or other non-approved components may damage the introduction of second-source ICs or other non-approved components may damage the product and void any product and void any
applicable Epson warranty. applicable Epson warranty.
5. 5. The capac The capacitors on th itors on the Main Boar e Main Board may be electri d may be electrically cha cally charged rig rged right after th ht after the power tur e power turns off or after dr ns off or after driving iving
motors which generates counter electromotive force such as when rotating the PF Roller or when moving the motors which generates counter electromotive force such as when rotating the PF Roller or when moving the
CR Unit. There is a risk to damage the Main Board if the Head FFC is short-circuited with the capacitors on
CR Unit. There is a risk to damage the Main Board if the Head FFC is short-circuited with the capacitors on
the Main Board electrically charged, therefore, after the power
the Main Board electrically charged, therefore, after the power turns off or after motors are turns off or after motors are driven, leave the driven, leave the
printer untouched for printer untouched for approximately 30 seconds to d approximately 30 seconds to discharge the capacitors before starting d ischarge the capacitors before starting disassembly/ isassembly/
reassembly. reassembly.
6. 6. To preve To prevent the circu nt the circuit boards fr it boards from short om short-circu -circuiting, be car iting, be careful abou eful about the follow t the following when ha ing when handlin ndling FFC or g FFC or
cables. cables.
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When handling FFC, take care not to let the terminal section of FFC touch metal parts. When handling FFC, take care not to let the terminal section of FFC touch metal parts.
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When connecting cables/FFC to the connectors on circuit boards, connect them straight to the connectors to avoid When connecting cables/FFC to the connectors on circuit boards, connect them straight to the connectors to avoid
slant insertion.
slant insertion.