Tank and Drum
Care
Introduction
With a little care, the JOBO tanks and drums should last a very long time. Follow the procedures below to assure optimum
performance and to prevent future processing problems.
Tank and Drum Care
Disassemble the tank or drum. Remove the beaker or funnel from the lid (except 3000 series).
Take apart reels and center cores (except for center cores or reels that are glued together). Rinse
thoroughly all components of the tank or drum. If you are going to be using the tank or drum for
another processing run, it must be completely dry before reassembly and loading. Towels, either
cloth or paper may be used to wipe out the interior and exterior of the tank or drum. A special
'drumstick'-shaped drying device is supplied with the Expert Drums for this purpose (#3007 or
#3008). If you use a cloth towel, be certain it has not been contaminated with chemicals from
previous use. If you use paper towels, check for 'shedding' of small paper fibers. Any fibers found
should be removed from the interior of the tank or drum. Smaller components may be placed in
the bottom of a film-drying cabinet. To speed drying, you may use a portable hair dryer. (See
warning below.) All tank or drum equipment should be stored between uses in a clean, dust-free
environment. Storage of wet components is not recommended. Do not store tanks or drums with
the lids locked on.
Notes:
The 2840 print drum is a combination of a 2820 drum and a 2870 module. The 2850 print drum is
a combination of a 2830 drum and a 2870 module. When reassembling the 2840 or 2850, be sure
to align the drum and module so the rails on the inside match. There is a notch on the molded
ring on the outside lip of the 2820 or 2830 drum body that is about 1/2" (12 mm) wide. This notch
engages with the one longer locking "tooth" located on the bottom edge of the module (below the
red locking ring). After aligning, pull the red locking ring on the bottom of the module fully down to
secure the coupling. Verify the alignment of the rails on the inside, and roll the drum on a flat
surface to see if it wobbles. If it wobbles, the module is not correctly seated on the drum.
Remount the module to the drum.
Because the 1500 series tanks do not have any rails inside, there is no internal alignment
necessary when reassembling the 1526 drum from a 1520 tank and 1530 module. However, you
should check for wobbling as described above.
After many processing runs you may find a buildup of residue on the reels and inside the tank or
drum. If this coating is not removed, it could cause processing problems, such as chemical
contamination or uneven development. Rinsing alone may not be sufficient to completely remove
the residue. There are several commercial products intended for processing equipment cleaning
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