WHAT IS THE CPS-800?
Technical Film Systems Inc. (TFS) model CPS-800 is a 35 mm motion picture
loop printer for printing release prints. The raw stock is fed and
spliced continuously without stopping the negative loops. The consequence
of the continuous feed is that there are no raw stock short ends. The
printing is unidirectional as opposed to bi-directional; this results in
the highest steadiness release prints in the industry. The printing speed
is 800 feet per minute (14,600 meters per hour). The CPS-800 is run by a
single operator. (Equivalent production can be obtained with three
DOES IT VARY FROM THE 2500 FEET PER MINUTE CPS?
CPS-800 is a slower speed machine which results in a smaller foot print
and lower ceiling height (11 feet, 3.35 meters) and a substantially
lower cost than the 2,500 feet per minute CPS. The CPS-800 is a
picture and sound-track elevators are capable of holding up
to 2,200 feet (670 meters) of negative; the minimum footage of each
elevator is 400 feet (122 meters). Please see photograph above of a
section of an elevator
change station (see above picture) is used for semi-automatically
exchanging the negatives. At the end of a production run the loop splice
(a tape splice) of both negatives stops at the splicing block of the
change station. At this time the tape is removed from the loop splice and
tail end of the negatives are spliced to the rolls to be loaded into the
elevators; the head end of the negative in the elevators is attached to
the take-up spindles. When the load button is activated, both negatives
load automatically at 800 feet per minute, the elevators automatically
adjust to the proper height. At the end of the load cycle the head and
tail end of the new negatives stop at the splicing block and are ready for
the loop splice. This entire process takes approximately six minutes;
this compares favorably with the time required for exchanging the
negatives on a modular printer.
raw stock feed station (see above picture) is capable of
feeding any length roll up to 8000 feet. At the beginning of a production
run, after the negatives have been loaded, the feed station will feed
leader and automatically stop the leader at the proper point for splicing
raw stock such that the raw stock splice coincides with the negative
splices. The result of this is that there is no raw stock loss. The
reverse is true at the end of a print run. The raw stock splices are
typically made with an ultrasonic splicer. For ease of operation, the
feed spindles are operated pneumatically.
raw stock take-up station (see above picture) similar to the feed
station and printer has a touch screen display which allows the operator
to enter the number of copies to be taken up on one roll. The maximum
take-up capacity is 8,000 feet. Thus it is possible to take up three, two
thousand foot rolls but the machine is also capable of taking up single
2,000 foot rolls. Similar to the feed station, the spindles are operated
pneumatically. an auto-lift mechanism is included with the take-up
in the above picture, the printer is a highly modified model “C”
printer. The picture printing head has a dual printing sprocket which
together with other novel design changes produces the extremely high
picture steadiness. The printer includes the standard TFS model LVC-6A
Light Valve Controller and three Michelson Engineering Inc. model
LV-4 Light Valves. The LVC-6A accommodates either a one inch paper
tape, a 3.5 inch floppy disc or an electronic interface for loading the
Frame Count Cue (FCC) information. Included with the printer are three
model FC-5 film cleaners for cleaning both negatives and the raw stock
before it enters the printing apertures. A fourth model FC-5 cleaner is
located on the raw stock feed station. The sound head is the standard TFS
four channel sound track head capable of printing all four sound tracks.
printer includes the standard TFS pattern synchronization detectors
(PSDs). Through a two frame checkerboard pattern printed into the
negative the LVC6-A automatically synchronizes the picture negative to the
(FCC) information. Additionally the PSDs check the synchronization of the
picture negative to the sound track negative each revolution of the
ADVANTAGES OF THE CPS-800
The most significant advantage of the CPS-800 is the high picture
The continuous feed nature of the printing system reduces raw stock
short end losses by at least four percent to on the average of seven
Operating labor cost of the CPS-800 is about one third the labor
cost of modular printers.
The operation of the CPS-800 is simpler than the operation of the
With the four model FC-5 film cleaners, the system produces
extremely clean prints and typically, as on the large CPS system, 2,000
prints before the negative requires cleaning.
Inspection costs are reduced. If print number 1 and 20 are
satisfactory, all prints in between will generally be satisfactory.
Almost all spare parts for the CPS-800 are identical to those of
the CPS and thus are, with very few exceptions, in stock at TFS.
Because of its low speed the CPS-800 is relatively quiet.
HISTORY OF THE LOOP PRINTING MACHINES
Technical Film Systems Inc. has been
building loop printer for over 26 years. For approximately 10 years
before that time, the same engineering team now at TFS was building loop
printing machines which had printing speeds of 3000 feet per minute
(55,000 meters per hour) .
The TFS CPSs have been sold in the USA,
Canada, Japan, England and Spain.