Konica 7115-18 Service Manual 7115fv11e

DIS/REASSEMBLY,

ADJUSTMENT

1. SAFETY INFORMATION

1-1. LASER SAFETY

• This is a digital machine certified as a class 1 laser product. There is no possibility of
danger from a laser, provided the machine is serviced according to the instruction in this
manual.

1-2. INTERNAL LASER RADIATION

Semiconductor laser

Maximum average radiation power(*) 26.4 µW

Wavelength 770-795 nm

*:Laser Aperture of the Print Head Unit

• This product employs a Class 3b laser diode that emits an invisible laser beam. The laser
diode and the scanning polygon mirror are incorporated in the print head unit.

• The print head unit is NOT A FIELD SERVICE ITEM. Therefore, the print head unit
should not be opened under any circumstances.

Laser Aperture of
the Print Head Unit

This figure Shows the view inside the Right Door
with the Imaging Unit removed.

D-1

the U.S.A., Canada
(CDRH Regulation)

• This machine is certified as a Class I Laser product under Radiation Performance Stan­dard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory
for Laser products marketed in the United States and is reported to the Center for
Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration of
the U.S. Department of Health and Human Services (DHHS). This means that the device
does not produce hazardous laser radiation.

• The label shown to page D-4 indicates compliance with the CDRH regulations and must
be attached to laser products marketed in the United States.

CAUTION

Use of controls, adjustments or performance of procedures other than those specified in
this manual may result in hazardous radiation exposure.

Semiconductor laser

Maximum power of the laser diode 5 mW

Wavelength 770-795 nm

All Areas

CAUTION

Use of controls, adjustments or performance of procedures other than those specified in
this manual may result in hazardous radiation exposure.

Semiconductor laser

Maximum power of the laser diode 5 mW

Wavelength 770-795 nm

Denmark

ADVARSEL

Usynlig Laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling. Klasse 1 laser produkt der opfylder IEC60825 sikkerheds kravene.

Halvlederlaser

Laserdiodens højeste styrke 5 mW

Bølgelængden 770-795 nm

D-2

Finland, Sweden

VARO!

Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä
katso säteeseen.

LOUKAN 1 LASERLAITE
KLASS 1 LASER APPARAT

VAROITUS!

Laitteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa
käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

Puolijohdelaser

Laserdiodin suurin teho 5 mW

Aallonpituus 770-795 nm

VARNING!

Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan
användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1.

Halvledarlaser

Den maximala effekten för laserdioden 5 mW

Våglängden 770-795 nm

VARNING!

Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej
strålen.

Norway

ADVERSEL

Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan
brukeren utsettes for unsynlig laserstråling som overskrider grensen for laser klass 1.

Halvleder laser

Maksimal effekt till laserdiode 5 mW

Bølgelengde 770-795 nm

D-3

1-3. LASER SAFETY LABEL

• A laser safety labels is attached to the outside of the machine as shown below.

Laser safety label

1-4. LASER CAUTION LABEL

• A laser caution label is attached to the inside of the machine as shown below.

4022D501AA

1-5. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT

• When laser protective goggles are to be used, select ones with a lens conforming to the
above specifications.

• When a disassembly job needs to be performed in the laser beam path, such as when
working around the printerhead and PC Drum, be sure first to turn the copier OFF.

• If the job requires that the copier be left ON, take off your watch and ring and wear laser
protective goggles.

• A highly reflective tool can be dangerous if it is brought into the laser beam path. Use
utmost care when handling tools on the user’s premises.

D-4

2. SERVICE INSTRUCTIONS

2-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS

Control Board (PWB-C)
125 V 3 A

DC Power Supply (PU1)
100 V system 125 V 15 A (F2)
200 V system 250 V 6.3 A (F2)

Thermoswitch 1 (TS1)
250 V 7.5 A/125 V 15 A

4021D006AA

D-5

2-2. PARTS WHICH MUST NOT BE TOUCHED

(1) Red Painted Screws

Purpose of Application of Red Paint
Red painted screws show that the assembly or unit secured can only be adjusted or set at
the factory and shall not be readjusted, set, or removed in the field.
If it becomes unavoidably necessary to disassemble any of these assemblies and units,
disassembly may be done provided that the conditions permitting reassembly are met.
Note also that when two or more screws are used on the part in question, only one repre­sentative screw may be marked with red paint.

(2) Variable Resistors on Board

Do not turn the variable resistors on boards for which no adjusting instructions are given in
“ADJUSTMENT.”
Other Screws not Marked with Red Paint
<PH Unit>

PH Unit

<IR Unit>

Left side face

PH Unit base plate

Right side face

D-6