Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic
Reexamination Certificate
2001-10-31
2003-02-25
Mathews, Alan A. (Department: 2851)
Incremental printing of symbolic information
Electric marking apparatus or processes
Electrostatic
C347S262000, C347S264000, C346S136000, C242S535000, C355S047000, C355S072000, C358S302000
Reexamination Certificate
active
06525754
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to photographic recording devices for the recording of photographic images onto a medium, especially onto a band-shaped medium. The invention relates in particular to drum recording devices wherein a band-shaped medium is clamped on a drum for the recording of photographic images onto the band-shaped medium.
BACKGROUND ART
Such a drum recording device is known from EP 1 009 158 A1.
The recording device known from EP 1 009 158 A1 is shown in FIG.
18
. The recording device includes as clamping arrangement a clamping drum
1100
as first holding mechanism a fastening means
1160
for the fastening of a recording medium M onto the mantle
1110
of the clamping drum and a recording unit
1200
stationary relative to the direction of rotation of the clamping drum. The recording unit
1200
records onto the recording medium imaging information which is supplied thereto in the form of electrical signals, which medium is fastened onto the mantle of the rotating clamping drum
1100
. Mounting means
1120
or a roll
1130
functioning as a medium source are provided in the interior of the clamping drum
1100
, onto which a supply of recording medium M is wound into a roll. The clamping drum
1100
includes in its mantle
1110
a break in the clamping track in the form of a slit
1140
through which the recording medium M is first guided from the interior of the clamping drum
1100
onto its mantle
1110
and then fastened thereon.
The fastening means are constructed as a clamping arrangement which includes two carrier arms,
1161
and
1162
positioned closely to the two sides of the mantle
1110
and a clamping bar
1163
connecting them. The clamping bar extends transverse over the width of the clamping track or the clamping drum
1100
. A knife bar
1170
is also mounted on the two carrier arms
1161
,
1162
and extends transverse to the mantle
1110
. It functions as a cutting device. The knife bar is moveable together with the clamping bar
1163
. The clamping bar
1163
is biased against the surface of the mantle
1110
by not illustrated springs and thereby clamps the recording medium M positioned thereunder onto the mantle
1110
of the clamping drum
1100
.
An actuating device
1180
is provided opposite the recording unit
1200
and stationary in a not illustrated frame. The actuating arrangement is controlled by the control
1300
and activates the clamping arrangement
1160
and the cutting arrangement
1170
, when the clamping drum
1100
is in a predefined rotational position in which the actuating arrangement
1180
is opposite the clamping arrangement
1160
and can be brought into engagement therewith. At the same location and also stationary in a not illustrated frame is provided a drive arrangement
1190
which in the mentioned rotational position of the clamping drum
1100
is brought into contact with the recording medium M on the mantle
1110
under the control of the control
1300
and provides for the advancement of the recording medium M in direction of rotation of the clamping drum
1100
relative to the mantle
1110
.
As shown in the detailed illustration of
FIG. 19
, the drive arrangement
1190
essentially includes a drive roller
1192
rotatably mounted in a pivotable frame
1191
which is driven by a motor
1194
connected with a control
1300
and by way of a belt
1193
. The pivotable frame
1191
is mounted stationary in a not illustrated frame and can be moved to and from the mantle
1110
by way of an only symbolically illustrated excenter mechanism
1195
-
1196
, whereby the drive roller
1192
is brought into contact with the recording medium M supported on the mantle or is lifted off therefrom. The clamping arrangement
1160
and the cutting arrangement
1170
connected therewith are also operated by the same excenter mechanism
1195
-
1196
. The excenter mechanism
1195
-
1196
is driven by another not illustrated stationary motor which in turn is connected with the control
1300
and controlled thereby.
The function of the recording device is as follows.
After the fastening of the storage roller
1130
of recording medium M onto the clamping pin
1120
in the interior of the clamping drum
1100
, the start of the band shaped recording medium M is manually guided between the clamping roller pair
1152
-
1153
through the slit
1140
to the outside, around the mantle
1110
of the clamping drum
1100
and clamped down by the clamping arrangement
1150
. The drive arrangement
1190
is in an inactive position in which the drive roller
1192
is lifted off the mantle
1110
. In this manner, the recording medium M is clamped on the clamping drum
1100
and the device is ready for the recording procedure (FIG.
19
).
The clamping drum
1100
is now rotated in direction of the arrow D together with the recording medium M and the image information to be recorded is recorded in a known manner by way of the recording unit
1200
onto the section of the recording medium M located on the mantle
1110
or under a part thereof. When the recording process is finished, the clamping drum is stopped in the above mentioned, defined rotational position (park position).
As illustrated in
FIG. 20
, the drive arrangement
1190
is now lowered onto the mantle
1110
so that the drive roller
1192
comes into contact with the recording medium M on the mantle. At the same time or immediately thereafter, the clamping arrangement
1160
together with the knife bar
1170
are lifted off the mantle
1110
so that the recording medium M is at this location held against the mantle
1110
only by the drive roller
1192
.
The printed (image carrying) portion of the recording medium M is now ejected (FIG.
21
). For this purpose, the drive roller
1192
is rotated and the recording medium band M advanced in the rotational direction of the clamping drum
1100
under and past the knife bar
1170
until the rear end of the printed portion is located under the knife bar
1170
.
The clamping arrangement
1160
together with the knife bar
1170
connected therewith is thereafter pressed against the mantle
1110
and at the same time or immediately thereafter the drive arrangement
1190
is lifted off the mantle
1110
. By way of the downwards movement (relative to the drum radially inward) of the clamping arrangement
1160
and the knife beam
1170
, the printed portion of the medium is cut off and the new front end of the still unprinted medium is clamped onto the clamping drum. The device is now ready for the next recording process (FIG.
22
).
The problem of an automatic loading or unloading is not solved in the above recording device.
SUMMARY OF THE INVENTION
It is now an object of the invention to provide a photographic recording device, which can be automatically loaded with a band-shaped medium or unloaded.
This object is achieved through a second holding mechanism which can clamp a band-shaped medium and relative to which the clamping arrangement can be moved, and a transport mechanism for transporting the band-shaped medium between the first and second holding mechanisms. A control is provided for the transfer of the band-shaped medium by operating one holding mechanism for releasing the band-shaped medium and activating the transport mechanism in a first preselected position for transporting the released band-shaped medium to the other holding mechanism.
The photographic recording device in accordance with the invention is used for the recording of photographic images onto a band-shaped medium. The band-shaped medium can be, for example, regular paper, light sensitive photographic paper, thermal paper or plastic foils etc. The recording of the photographic images onto the band-shaped medium is carried out with a recording unit suitable for the respective medium. For example, it can be an inkjet-recording unit which applies ink onto the regular paper. A recording unit can also apply toner onto regular paper, for example. The recording unit can also be constructed for the exposure of a light sensitive medium, for example,
Gretag Imaging Trading AG
Mathews Alan A.
Weingarten Schurgin, Gagnebin & Lebovici LLP
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