LPL 7452 User manual

DIFFUSION
MODULAR ENLARGER
MODEL fH-52
INSTRUCTIONMANUAL
3684-OO05

Thank youfor your havingselected anLPL enlarger. Please readthismanualcarefullybefore
using the enlarger, and keep itfor future reference.
INDEX
CONTENTSPAGE
DENOMINATION OF PARTS 1
PACKAGING 2
ASSEMBLY:
• Column 3
• Carriage 4
• Lamp 5
• Negative Stage Plate,Carrier, Lens Mount 6
• Red Filter, PowerSupply 7
OPERATION:
• Magnification, Focus, Floor Projection 8
• White-lightFocus, Light Attenuator 9
• Diffusion Box, Filter Modules 10
REMARKS 11/12
SPECIFICATIONS. ..13

OS
NOMINATION O
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
DENOMINATION OF PARTS
Head/Carriage Assembly
Column
Baseboard
Column Top
Counter-Balance SpringScrew
Carriage Lock Knob
Carriage-Adjust Nuts
Carriage-Adjust Screw
LampChamberCover
Lamp ChamberCoverScrew
Power Supply
Negative CarrierHolderHandle
Negative StagePlate
Negative Carrier*
Lensboard
Red Filter Lock Screw
Red Filter
Cooling-Fan Air Outlet
Cord Clip
ElevationHandle Bar
ElevationControl
Focus Control
Fine FocusControl
Filtration Control (Color Module)1
Filter Scale Windows(ColorModule)
White-Light-FocusLever(ColorModule)
Light Attenuator Knob (ColorModule)
Lamphouse Top-Plate Screw
Magnification Scale
Bellows
Counter-Balance Springs
The negativecarrier maynotbe supplied with the
enlarger, but will be selected asan option, in certain
areas.

PACKAGING
1. Head/Carriage Group
1. Lamphouse/Carriage/BellowsAssembly
(Diffusion Box, FilterModule)
1C. Enlarging Lamp
8A. ScrewDriver
13. NegativeStagePlate
13C. Position Pins
14. NegativeCarrier 4 x 5"
15. Lensmount
17.Red Filter
ATTENTION!
HEAD/CARRIAGE AND COLUMN
ARE CUSTOM-ALIGNED.
MAKE SURE THEY HAVE SAME
SERIAL NUMBER.
(I3:
®A
2. Column Group
2. Column
2A. Fixing Bolts
2B. Washers
2C. Wrench
3. Baseboard
3. Baseboard
4. Power Supply
11. Power Supply
-2-

ASSEMBLY
Mounting the column:
Stand the column (2)onthe baseboard as
shown.
Puta fixing bolt (2A) anda washer (2B) as
shown through the hole inthe baseboard
(3A).Tighten the bolt thoroughly with the
wrench(2C).
Fix the otherthreeboltstoo.
-(2)0
2. Mounting the head/carriage/bellows assembly
(Thehead,carriage and bellows are already
put togetherbefore leaving the factory.)
Pull offthe column top(4)and remove the
counter-balance spring screw (5)as shown.
-3

EMBLY
Loosen the carriage lockknob (6)by turn-
ing it counter-clockwise. Lift the entire
head assembly as shown,matching the
column andthe opening ofthe carriage,
and putthe assembly over the column.
The counter balance springs endina hook
(1A). Putit over an edge ofthe column as
shown. Lower the head assembly a little
along the column, and tighten the carriage
lock knob (6)*. Putthe counter-balance
spring screw (5) back into positionthrough
the hole inthe hook as shown. Replace the
column top (4).
Note:
The head assembly is counter-balanced
so that it will stay in positionalong the
column without beinglocked.However,
itis always recommendable tousethe car-
riage lockknob (6)to prevent an uninten-
tional move ofthe carriage.
-4-

ASSEMBLY
3. Removing the support packing
A supportpacking is placedunderneath
the lamphouse,between front ends ofthe
lamphouse and bellows. Ithastobe removed
before using. Please keep itfor future trans-
portation.
The support packing (1B) will be removed
with the screw-driver(8A)provided with
the enlarger.
9,
4. Installing the enlarging lamp
Loosen the lamp-chambercoverscrew(10)
with a coin, andletthe lamp-chambercover
(9) slide offas shown.
Note:
The procedure will be reversed after mount-
inga lamp.
CAUTION:
The cover will behot after the enlarger has
been in use. Letit cool off whenreplacing
a lamp.
Pull the lamp socket (1D) outofthe cham-
ber. Putthe enlarging-lamp (1C) inthe
socket, andputthe lamp inthe lamp-holder
frame (1E) inside the chamber as shown.
-5-

Installing the negative stage plate
Push upthe negative carrier holderhandle*
(12) and insert the negative stage plate(13)
as shown. The stage will fit over thetop
part ofthe bellows. See that the position
pin (13A) ofthe plate will match the hole
inthetop part ofthe bellows.
Note:
The negativecarrierholder (12) is linked
tothe negative carrier holderinside the
lamphouse,which goes uptoleta negative
carrier in,and come down to hold the car-
rier tightly in position.
6. Inserting the negative carrier
Insert a negativecarrier(14) as shown, rt
maybe inserted from the side as well.Pull
down the negativecarrierholderhandle(12)
as shown.
7. Mounting enlarging lens (lensmount)
Enlarging Lenses arenot provided with the
enlarger.
A 39mm lensmount is supplied with the
enlarger. Lensmount of differentthreads
are also available as options.
Loosen the lensmountlock-screw(15A)
and remove the lensmount(15). Putan
enlarging lens inthe lensmount (15)*.
Putthe lensmount (with the lens) back,
and tighten the lock-screw(15A).
Lens-Board Position
_L
(Try the other position ifthe lens
fails to focus.)
-6-

ASSEMBLY
8. Installing red filter (safety filter)
Thered filter provided with the enlarger is
effective only with the papers for mono-
chrome printing.
Loosen thered filter lock screw (16). In-
sert thered filter shaft(17A)frombelow,
matching the groove onthe shaft andthe
lockscrew(16).Tighten the lock screw(16).
9. Connecting the power supply and cooling
fan.*
Make sure that the powerswitch (11 A)of
the power supply(11) isinOFF position.
Connect the power-cord ofthe enlarger
(11B) andthe powersupply(11C).Then
connect the powercord ofthe powersupply
(11D) anda housemain.
Connect the powercord ofthe cooling fan
(18A)directly toa house main.
Note:
Type ofthe powersupply andthe con-
nectors maybe different in different areas.
Shownhere isa standardexample.
CAUTION:
Always keep the cooling fanin operation
while the enlarger isin use.
Use only the powersupplyprovided with
the enlarger.
10. Cord Clip.
Put the powercordsthrough the cord clip
(19) to keep them tidy.
THE ENLARGER ISNOW ASSEMBLED AND READY FOR USE.
-7-

RATION
1. Magnification/ElevationControl
When the carriage lock knob (6)is loose, the head will travellfreely upand down along the column.
Use the elevationhandle bar (20) for swift up/down. Use,Elevation Control (21) for slow lifts.
Lock the head by tightening the carriage lock screw (6) when the position ofthe head is deter-
mained.
2. Focus Controls
Use oneofthe focus controls (22) on either
sides ofthe bellows. A finefocus control
(1 : 5)is also provided onthe right side
focus control.
3. FloorProjection
For making extra-large prints offthe base-
board, "floor projection" will be possible.
Todoit,the entire head/carriage/bellows
assembly will be drawn offthe column,
turned round 180° andput back onto the
column again as shown. The counter-balance
springs will be hooked and fixed onthe
other side ofthe column, an extrascrew-
hole is provided inthe front side ofthe
column for thispurpose. The column top
(4) andthe counter-balance spring screw
will have tobe removed and replaced in
the shift process. Please refer to "mounting
the head/carriage/bellows assembly in page 4.
Note:
Put sufficientcounter-weight onthe base-
boardwhen the floor projection is carried
out.
-8-

TION
4. Color (dichroic) filtermodule
Filters with fade-free,hardmetalliccoating
are used inthe color filter module.Filters
are valuedaccording to density ratio. (Yellow
& Cyan 0 - 200 cc. Magenta 0 - 170 cc)
Three filtration controls(24) are provided
for each of yellow,cyan and magenta filter.
Scales are seen inthe filter scale windows
(25).
The white-light-focus lever (26),when
turned to horizontal position, takes the
filters out ofthe light-path without chang-
ing the set values, for easy focusing.
'26:
The lightattenuatorknob(27),when turned
fully clockwise,brings the attenuator into
the light-path, reducing the light to approxi-
mately 1/4 (twof-stops). Useitto extend
exposure timewhendesired.
-9 —

E RATION
CDF
—©G
5. Changing the diffusion box
A diffusion boxis provided with theen-
larger. Itis alreadyplacedinside the head
as the enlarger leaves the factory.How-
ever, itmay become necessary to replace
it aftermanyhours of use, asthe foam
liningturnsyellowish.
Remove the lamphousetop-plate screw
(28), and slide the top-plate(1F) tothe
direction ofthe arrow as shown, offthe
lamphouse.
Place the negative-carrierholderhandle
(12) in horizontal position, and take out
the diffusion box (1G).
Reverse the procedureafter replacing the
diffusionbox.
6. Changingfilter modules
Filter modules of this enlarger is inter-
changeable. Besides the color filter module,
VCCE (variable contrastconstant exposure)
module is also available foruse with variable
contrastpapers. Foruse with ordinary
monochrome papers, B/W module ora
blind lidmaybe used. Separate manual is
provided for VCCEfiltermodule.
Loosen the screw onthe bottom as shown.
Letthe module slide forward as shown,
offthe lamphouse.
Put anothermodule in,and tighten the screw.
10

ADJUSTMENT OFTHE CARRIAGE
The carriage/column fitting is custom-ad-Loosen the carriage adjustnuts (7) using
justed to ensure smoothmovement.How- the column-top (4)asa wrench. Letthe
ever, means of slightadjustment is also headtravell upand down, whiletighten-
provided, to readjustplays and feel. ingor loosening the carriage adjust screws
(8) with the screw-driver(8A) searching
forthe bestfeel.When the screws (8)are
adjusted, hold the screw with the driver
so that it will not turn, and tighten the
relative nut(7) with the wrench(column
top).
DISMANTLING THE LAMPHOUSE
The lamphouse, if desired, canbe dismantled through the followingprocedures:
Screws
Place the head assembly upsidedown and
loosen the four screws with the screwdriver.
- 11

REMARKS
FIXING THE NEGATIVESTAGEPLATE:
The negativestage plate is kept loose for
the convenience of replacing it with op-
tional stage plate with maskingblades. How-
ever, when you prefer to have it tightly
fixed, itmaybe screwed down after hav-
ing dismantled the lamphouse, as explained
inthe foregoing paragraph.
The negativestage further provided with a
pair of extra position pins and holes, for
use with negativecarriers of other makes
inthe market.
12 —

SPECIFICATIONS
ft"
Format Size:
Lens Mount:
Illumination:
Light Source:
Cooling System:
Elevation Control:
Focusing Control:
FilterModules:
Negative Carrier:
Maximum Print Size:
(on Baseboard)
Baseboard:
Overall Height:
ColumnHeight:
Weight:
36 x 24mm ~ 4 x 5"
Disc type
Diffusion type
Quarts Halogen Lamp250W(24V or 82V) w/dichroic mirror
Built-in cooling fan
Springcounter-balanced, over-sized friction knob
Friction, double-rail,dual-knob
w/fine focus control (1:5)
Interchangeable, Dichroiccolor(Y.M.C.),
Variable ContrastConstantExposure
Black & White(Blind)
36 x 24mm ~ 4 x 5", single-size, sandwich type
approx. 56x 60cm*
60 x 60cm, steelreinforced
1,332 mm
1,260 mm
approx. 26.7 kg.
* Note:Maximum print size differsaccording to lenses and formats.
13 -

Manufactured by LPL CO.,LTD. TOKYO-JAPAN