[0001] The present invention relates document deskewing. In particular, though not exclusively,
the invention relates to a self-service document depositing terminal, and a document
deskewing module therefor.
[0002] One type of self-service document depositing terminal is a bunch document depositing
automated teller machine (ATM).
[0003] In a typical bunch document depositing ATM, an ATM customer is allowed to deposit
a bunch of documents such as currency notes or checks (without having to place any
of the documents in a deposit envelope) in a publicly accessible, unattended environment.
To deposit a bunch of documents, the ATM customer typically inserts a user identification
card through a user card slot at the ATM, and inserts the bunch of documents to be
deposited through a slot of a bunch document acceptor. A document transport mechanism
receives the inserted bunch of documents and transports the documents one-by-one in
a forward direction along a document transport path to a number of locations within
the ATM to process the documents.
[0004] If a particular document is not accepted for deposit, the document transport mechanism
may transport the entire bunch of documents in a manner to return the bunch of documents
to the ATM customer. If the entire bunch of documents is accepted for deposit, the
amount of the bunch of documents is deposited into the ATM customer's account and
the documents are transported one by one to a number of storage bins within the ATM.
If a bunch of documents is a bunch of checks, an endorser printer prints an endorsement
onto each check as the check is being transported to and stored in a check storage
bin. If a bunch of documents is a bunch of currency notes, then each currency note
is transported to and stored in a currency storage bin. Documents in the different
storage bins within the ATM are periodically picked up and physically transported
to a back office facility of a financial institution for further processing.
[0005] From time to time, a document may become skewed as the document is being transported
along the document transport path to the different locations with the ATM. When a
document becomes skewed along the document transport path, it is desirable to deskew
the skewed document before it is processed at the different locations within the ATM.
Otherwise, the skewed document may cause a document jam condition resulting in ATM
downtime.
[0006] Document deskewing mechanisms are known. However, these known document deskewing
mechanisms are designed to deskew only one type of document (e.g., either a currency
note or a check, but not both). When a document deskewing mechanism is designed to
deskew only one type of document, the mechanism is effective in deskewing a document
of only that particular type. This is because different types of documents are of
different sizes, different thicknesses, different paper grades, or the like. It would
be desirable to provide a document deskewing mechanism which is effective to deskew
a bunch of documents containing multiple types of documents such as a mixture of checks
and currency notes.
[0007] According to a first aspect of the present invention there is provided a method of
operating a document deskewing module for a self-service bunch document depositing
terminal having a document transport path along which a document can be transported,
the method comprising: at a first time, moving a first set of idler rollers towards
a first set of drive rollers in the form of hard drive rollers to drive the document
between first set of idler rollers and the hard drive rollers to move the document
in a first direction of document travel from an upstream end of the document transport
path to a downstream end of the document transport path; at a second time which is
different from the first time, moving a second set of idler rollers towards a second
set of drive rollers in the form of soft drive rollers to drive the document between
the second set of idler rollers and the soft drive rollers to move the document towards
a reference edge in a second direction of document travel which is transverse to the
first direction of document travel so as to deskew the document relative to the first
direction of document travel; and detecting when the document transported being along
a document transport path is deskewed and providing a deskew signal indicative thereof.
[0008] According to a second aspect of the invention there is provided a document deskewing
module for a self-service bunch document depositing terminal, the document deskewing
module comprising: a set of sensors arranged to detect when a document transported
along a document transport path from a mixed bunch of documents including documents
of a first type and documents of a second type which is different from the first type
is deskewed; a first set of drive rollers in the form of hard drive rollers disposed
along the document transport path; a first set of idler rollers moveable towards and
away from the hard drive rollers; a second set of drive rollers in the form of soft
drive rollers disposed along the document transport path; a second set of idler rollers
moveable towards and away from the soft drive rollers; and a controller arranged to
control operation of the first and second sets of idler rollers in response to a number
of signals from the set of sensors such that either only the first set of idlers are
interacting with the hard drive rollers or only the second set of idlers is interacting
with the soft drive rollers at any one time to deskew either a document of the first
type or a document of the second type which is different from the first type.
[0009] According to a third aspect of the present invention there is provided a bunch document
depositing automated teller machine (ATM) for processing a mixed bunch documents including
checks and currency notes, the bunch document depositing ATM comprising: a set of
sensors arranged to detect when a document transported along a document transport
path from the mixed bunch of documents is deskewed relative to a first direction of
travel from an upstream end of the document transport path to a downstream end of
the document transport path; a first set of drive rollers in the form of hard drive
rollers disposed along the document transport path; a first set of idler rollers moveable
towards and away from the hard drive rollers; a second set of drive rollers in the
form of soft drive rollers disposed along the document transport path; a second set
of idler rollers moveable towards and away from the soft drive rollers; a pair of
actuatable solenoids each having an armature link, one solenoid being operatively
coupled through its armature link to a first set of arms to the first set of idler
rollers and the other solenoid being operatively coupled through its armature link
to a second set of arms to the second set of idlers; and a controller arranged to
control actuation of the solenoids and thereby to control the first and second sets
of idler rollers such that the first set of idlers move away from the hard drive rollers
to disengage the hard drive rollers and the second set of idlers move towards the
soft drive rollers to engage the soft drive rollers to deskew either a check or a
currency note which is being transported along the document transport path from the
upstream end to the downstream end of the document transport path.
[0010] In accordance with one embodiment of the present invention, a document deskewing
module is provided for a self-service bunch document depositing terminal. The document
deskewing module may comprise a set of sensors arranged to detect when a document
transported along a document transport path from a mixed bunch of documents including
documents of a first type and documents of a second type which is different from the
first type is deskewed, a first set of drive rollers in the form of hard drive rollers
disposed along the document transport path, a first set of idler rollers moveable
towards and away from the hard drive rollers, a second set of drive rollers in the
form of soft drive rollers disposed along the document transport path, a second set
of idler rollers moveable towards and away from the soft drive rollers, and a controller
arranged to control operation of the first and second sets of idler rollers in response
to a number of signals from the set of sensors such that either only the first set
of idlers are interacting with the hard drive rollers or only the second set of idlers
is interacting with the soft drive rollers at any one time to deskew either a document
of the first type or a document of the second type which is different from the first
type.
[0011] These and other aspects of the present invention will be apparent from the following
specific description, given by way of example, with reference to the accompanying
drawings, in which:
Fig. 1 is a left-front perspective view of a bunch document depositing automated teller
machine (ATM) constructed in accordance with one embodiment of the present invention;
Fig. 2 is a simplified schematic diagram, looking approximately in the direction of
arrow X in Fig. 1, and illustrating a scalable deposit module (SDM) configured to
operate in the ATM of Fig. 1;
Fig. 3 is a left-front perspective view of the SDM of Fig. 2;
Fig. 4 is a top perspective view, looking approximately in the direction of arrow
Y in Fig. 3;
Fig. 5 is a view similar to the top perspective view of Fig. 4, with some parts removed
to better illustrate parts of a document deskewing module constructed in accordance
with one embodiment of the present invention; and
Fig. 6 is a bottom view, looking approximately in the direction of arrow Z shown in
Fig. 5.
[0012] Referring to Fig. 1, a self-service bunch document depositing terminal in the form
of an image-based bunch document depositing automated teller machine (ATM) 10 is illustrated.
The check depositing ATM 10 comprises a fascia 12 coupled to a chassis (not shown).
The fascia 12 defines an aperture 16 through which a camera (not shown) images a customer
of the ATM 10. The fascia 12 also defines a number of slots for receiving and dispensing
media items, and a tray 40 into which coins can be dispensed. The slots include a
statement output slot 42, a receipt slot 44, a card reader slot 46, a cash slot 48,
another cash slot 50, and a bunch document input/output slot 52. The slots 42 to 52
and tray 40 are arranged such that the slots and tray align with corresponding ATM
modules mounted within the chassis of the ATM 10.
[0013] The fascia 12 provides a user interface for allowing an ATM customer to execute a
transaction. The fascia 12 includes an encrypting keyboard 34 for allowing an ATM
customer to enter transaction details. A display 36 is provided for presenting screens
to an ATM customer. A fingerprint reader 38 may also be provided for reading a fingerprint
of an ATM customer to identify the ATM customer. The user interface features described
above are all provided on an NCR PERSONAS (trademark) 6676 ATM, available from NCR
Financial Solutions Group Limited, Discovery Centre, 3 Fulton Road, Dundee, DD2 4SW,
Scotland.
[0014] Referring to Figs. 2 and 3, one embodiment of a scalable deposit module (SDM) 60
is illustrated. Fig. 2 is a simplified schematic diagram (looking approximately in
the direction of arrow X in Fig. 1) of part of the fascia 12 and main parts of the
SDM 60. Fig. 3 is a left-front perspective view of the SDM 60 shown in Fig. 2.
[0015] The SDM 60 of Figs. 2 and 3 comprises five main units which include an infeed module
70, a transport module 80, a pocket module 90, an escrow re-bunch module (ERBM) 99,
and a document deskewing module 200. The infeed module 70 receives a bunch of documents
deposited into the bunch document input/output slot 52, and transports the documents
one-by-one to an inlet of the transport module 80. The dimensions of the infeed module
70, such as its run length, may vary depending upon the particular model ATM in which
the SDM 60 is installed. The structure and operation of the infeed module 70 are conventional
and well known and, therefore, will not be described.
[0016] The transport module 80 includes a document transport mechanism which receives a
document from the inlet adjacent to the infeed module 70, and transports the document
along a first document track portion 61 which is the main track portion. The transport
module 80 further includes a document diverter 82 which is operable to divert a document
along a second document track portion 62 to the pocket module 90, and a third document
track portion 63 which leads to the ERBM 99 and then back to the infeed module 70.
The third document track 103 allows a bunch of documents which has accumulated in
the ERBM 99 to be transported back to the infeed module 70. The structure and operation
of diverter 82 shown in Fig. 2 may be any suitable diverter which is capable of diverting
a document along one of two different document transport paths. The structure and
operation of diverter 82 are conventional and well known and, therefore, will not
be described.
[0017] The transport module 80 further includes a magnetic ink character recognition (MICR)
head 83 for reading magnetic details on a code line of a check. The transport module
80 also includes an imager 84 including a front imaging camera 85 and a rear imaging
camera 86 for capturing an image of each side of a check (front and rear). An endorser
printer 88 is provided for printing endorsements onto checks. An image data memory
94 is provided for storing images of checks. A controller 95 is provided for controlling
the operation of the elements within the SDM 60.
[0018] The pocket module 90 includes a check storage bin 91 (Fig. 3) for storing processed
checks. The pocket module 90 further includes a currency storage bin 92 for storing
processed currency notes. The pocket module 90 also includes a reject bin 93 for storing
rejected documents. The structure and operation of the pocket module 90 are conventional
and well known and, therefore, will not be described.
[0019] The SDM 60 processes a bunch of documents of different types (such as currency notes,
checks, or a combination thereof). When a bunch of documents is being processed, each
document of the bunch is separated at the infeed module 70 before it is individually
processed. Each processed document is then re-assembled at the ERBM 99 to bunch the
documents back together. Bunch processing of different types of documents is sometimes
referred to as "multiple-document processing". Since individual documents are being
bunched back together, an escrow module (such as the ERBM 99 shown in Figs. 2 and
3) is needed. The ERBM 99 is manufactured and available from Glory Products, located
in Himeji, Japan. The ERBM 99 allows a bunch of documents to be processed in a single
transaction. If a bunch of documents has accumulated in the ERBM 99 and is unable
to be processed further within the SDM 60, then the bunch of documents is transported
via the third document track portion 63 back to the infeed module 70 to return the
unprocessed bunch of documents to the ATM customer.
[0020] Referring to Figs. 4, 5, and 6, the document deskewing module 200 includes a top
guide assembly 202 (Fig. 4) which guides a document in the direction of arrow A along
the first document track portion 61 (Fig. 5). Fig. 4 is a top perspective view, looking
approximately in the direction of arrow Y in Fig. 3. Fig. 5 is a view similar to the
top perspective view of Fig. 4, with some parts including the top guide assembly 202
removed to better illustrate certain parts of the document deskewing module 200. Fig.
6 is a bottom view, looking approximately in the direction of arrow Z shown in Fig.
5.
[0021] As shown in Fig. 5, the document deskewing module 200 has a relatively straight reference
surface or edge 204 against which a document abuts as the document is being transported
along the first document track portion 61 in the direction of arrow A. The reference
surface 204 is referred to herein as the track bottom. A first set of track sensors
206a, 206b, 206c detects progress of the document as the document is being transported
from an upstream end of the first document track portion 61 to a downstream end of
the first document track portion. A second set of track sensors 208a, 208b, 208c,
208d detects when the document has been deskewed in a manner to be described hereinbelow.
[0022] A first set of drive rollers 210a, 210b, 210c (Fig. 5) cooperates with a first set
of idler rollers 212a, 212b, 212c (Fig. 4) to advance the document downstream along
the first document track portion 61. The first set of drive rollers 210a, 210b, 210c
operate in direct contact with the opposing idlers 212a, 212b, 212c giving a large
drive force and is referred to herein as the hard drive rollers. The first set of
idler rollers 212a, 212b, 212c is referred to herein as the hard drive idlers. The
hard drive rollers 210a, 210b, 210c lie "parallel" to the direction of document movement
as indicated by arrow A shown in Fig. 5. A set of compression springs 214a, 214b,
214c (Fig. 4) maintains the set of hard drive idlers 212a, 212b, 212c in contact with
the opposing set of hard drive rollers 210a, 210b, 210c. A first set of lifter arms
314a, 314b, 314c allows the set of hard drive idlers 212a, 212b, 212c to be disengaged
from the set of hard drive rollers 210a, 210b, 210c, in a manner to be described later
herein.
[0023] A second set of drive rollers 310a, 310b (Fig. 5) cooperates with a second set of
idler rollers 312a, 312b (Fig. 4) to direct the document against the track bottom
204. The second set of drive rollers 310a, 310b do not contact the opposing idlers
312a, 312b directly while operating giving a much lighter drive force and is referred
to herein as the soft drive rollers. The second set of idler rollers 312a, 312b is
referred to herein as the soft drive idlers. The soft drive rollers 310a, 310b are
"angled" relative to the hard drive rollers 210a, 210b, 210c as shown in Fig. 5. Accordingly,
the soft drive rollers 310a, 310b, 310c lie "angled" to the direction of document
movement as indicated by arrow A shown in Fig. 5. A second set of lifter arms 316a,
316b allows the set of soft drive idlers 312a, 312b to move away from the set of soft
drive rollers 310a, 310b, in a manner to be described later herein.
[0024] As shown in Fig. 5, each of the soft drive rollers 310a, 310b has a corresponding
one of U-shaped depressions 322a, 322b. The U-shaped depression 322a is associated
with the soft drive roller 310a and is disposed between a pair of tire surfaces 324a
of the soft drive roller 310a. The corresponding soft drive idler 312a (Fig. 4) runs
inside the U-shaped depression 322a of the soft drive roller 310a, and does not contact
soft drive roller 310a. Similarly, the U-shaped depression 322b is associated with
the soft drive roller 310b and is disposed between a pair of tire surfaces 324b of
the soft drive roller 310b. The corresponding soft drive idler 312b (Fig. 4) runs
inside the U-shaped depression 322b of the soft drive roller 310b, and does not contact
soft drive roller 310b. A corresponding set of adjustment screws 318a, 318b allows
the positions of the set of soft drive idlers 312a, 312b to be adjusted relative to
the positions of the set of soft drive rollers 310a, 310b.
[0025] Cooperation between the soft drive roller 310a and the soft drive idler 312a and
cooperation between the soft drive roller 310b and the soft drive idler 312b are the
same. For simplicity, only cooperation between the soft drive roller 310a and the
soft drive idler 312a will be described hereinbelow.
[0026] When a document is transported along the first document track portion 61 and moves
between the soft drive roller 310a and the soft drive idler 312a, the soft drive idler
deflects the document into the U-shaped depression 322a. The amount of drive force
from the tire surfaces 324a acting on the document depends upon the amount of deflection
force from the document. The amount of deflection force from the document depends
upon the extent to which the soft drive idler 312a is running inside of the U-shaped
depression 322a (as determined by position of the adjustment screw 318a).
[0027] The amount of deflection force from the document also depends upon the relative stiffness
(or relative limpness) of the particular document. For example, a relative stiffer
document provides a greater amount of deflection force and, therefore, provides a
greater amount of drive force (from the tire surfaces 324a) which acts on the document.
Similarly, a relative limper document provides a lesser amount of deflection force
and, therefore, provides a lesser amount of drive force (from the tire surfaces 324a)
which acts on the document. The angle of the tire surfaces 324a relative to the direction
of travel (as indicated by arrow A) of document causes the document to abut against
the track bottom 204.
[0028] It should be apparent that the cooperation between the soft drive roller 310a and
the soft drive idler 312a provides a variable drive force which acts on the document
being transported along the first document track portion 61. The variable drive force
provided is such that relatively thicker or stiffer documents are driven harder, and
relatively thinner or limper documents are driven more lightly. This variable drive
force is advantageous because (i) a relatively thicker or stiffer document (such as
one that has been folded, curled or crumpled) requires more drive force to overcome
the friction of travelling down the first document track portion 61, and (ii) a relatively
thinner or limper document is less likely to deform as the document is more lightly
pushed against the track bottom 204.
[0029] A first actuatable solenoid 230 (Fig. 4) having an armature link 232 is operatively
coupled through the first set of lifter arms 314a, 314b, 314c to the hard drive idlers
212a, 212b, 212c. A second actuatable solenoid 234 having an armature link 236 is
operatively coupled through the second set of lifter arms 316a, 316b to the soft drive
idlers 312a, 312b. When the first solenoid 230 is actuated, the hard drive idlers
212a, 212b, 212c are moved away from the hard drive rollers 210a, 210b, 210c. At the
same time, the second solenoid 234 is actuated and the soft drive idlers 312a, 312b
are moved towards and running inside the U-shaped depressions 322a, 322b of the soft
drive rollers 310a, 310b.
[0030] When the first solenoid 230 is de-actuated, the armature link 232 releases the first
set of lifter arms 314a, 314b, 314c. At the same time, the second solenoid 234 is
de-actuated and the second set of lifter arms 316a, 316b are lifted. These two actions
cause the hard drive idlers 212a, 212b, 212c to engage the hard drive rollers 210a,
210b, 210c, and at the same time, the soft drive idlers 312a, 312b to move away from
or "disengage" the soft drive rollers 310a, 310b. Accordingly, only one function of
either hard drive rollers 210a, 210b, 210c or the soft drive rollers 310a, 310b is
normally provided at any one time.
[0031] When a document first comes out the infeed module 70, the document encounters the
soft drive rollers 310a, 310b and the soft drive idlers 312a, 312b (i.e., the function
of the soft drive rollers 310a, 310b is provided). The soft drive rollers 310a, 310b
and the soft drive idlers 312a, 312b push the document against the track bottom 204
until at least two of the deskew sensors 208a, 208b, 208c, 208d are blocked. When
at least two of the deskew sensors 208a, 208b, 208c, 208d are blocked, the second
solenoid 234 is de-actuated to "disengage" the soft drive rollers 310a, 310b and the
solenoid 230 is de-actuated to engage the hard drive rollers 210a, 210b 210c. It should
be noted that the soft drive rollers 310a, 310b are preferably disengaged at this
point. Otherwise, a relative thin or limp document may begin to curl and jam if it
travels any significant distance with the angled soft drive rollers 310a, 310b engaged.
The document is now deskewed and is transported to other parts of the SDM 60 under
control of the hard drive rollers 210a, 210b, 210c.
[0032] By using a document deskewing module as described hereinabove, it is conceivable
that the hard drive rollers 210a, 210b, 210c be momentarily engaged if the document
is detected to hesitate (or stop) while under control of the soft drive rollers 310a,
310b. This momentary engagement of the hard drive rollers 210a, 210b, 210c would act
as a small "nudge" or "kick" to the document in an attempt to correct what is causing
the document to hesitate (or stop).
[0033] Although the above description describes the PERSONAS (trademark) 6676 NCR ATM embodying
the present invention, it is conceivable that other models of ATMs, other types of
ATMs, or other types of self-service bunch document depositing terminals may embody
the present invention. Self-service bunch document depositing terminals are generally
public-access devices that are designed to allow a user to conduct a bunch document
deposit transaction in an unassisted manner and/or in an unattended environment. Self-service
bunch document depositing terminals typically include some form of tamper resistance
so that they are inherently resilient.
[0034] The particular arrangements disclosed are meant to be illustrative only and not limiting
as to the scope of the invention.
[0035] Various modifications may be made to the above described embodiment within the scope
of the present invention.
1. A method of operating a document deskewing module (200) for a self-service bunch document
depositing terminal (10) having a document transport path along which a document can
be transported, the method comprising:
at a first time, moving a first set of idler rollers towards a first set of drive
rollers in the form of hard drive rollers to drive the document between first set
of idler rollers and the hard drive rollers to move the document in a first direction
of document travel from an upstream end of the document transport path to a downstream
end of the document transport path;
at a second time which is different from the first time, moving a second set of idler
rollers towards a second set of drive rollers in the form of soft drive rollers to
drive the document between the second set of idler rollers and the soft drive rollers
to move the document towards a reference edge in a second direction of document travel
which is transverse to the first direction of document travel so as to deskew the
document relative to the first direction of document travel; and
detecting when the document transported being along a document transport path is deskewed
and providing a deskew signal indicative thereof.
2. A method according to claim 1, wherein only either the first set of idler rollers
is moving towards the hard drive rollers or the second set of idler rollers is moving
towards the soft drive rollers at any one time.
3. A method according to claim 1 or 2, wherein the reference edge extends in a direction
parallel to the first direction of document travel from the upstream end of the document
transport path to the downstream end of the document transport path.
4. A method according to any preceding claim, wherein the second direction of document
travel is perpendicular to the first direction of document travel.
5. A method according to any preceding claim, wherein detecting includes (i) detecting
at least a first signal from one of a plurality of sensors, and (ii) detecting a second
signal from another one of the plurality of sensors such that the deskew signal which
is indicative of the document being deskewed varies as a function of both the first
and second signals from the plurality of sensors.
6. A method according to any preceding claim, wherein the self-service bunch document
depositing terminal comprises a bunch document depositing automated teller machine
(ATM).
7. A document deskewing module (200) for a self-service bunch document depositing terminal
(10), the document deskewing module (200) comprising:
a set of sensors (208) arranged to detect when a document transported along a document
transport path (61) from a mixed bunch of documents, including documents of a first
type and documents of a second type which is different from the first type, is deskewed;
a first set of drive rollers (210) in the form of hard drive rollers disposed along
the document transport path (61);
a first set of idler rollers (212) moveable towards and away from the hard drive rollers
(210);
a second set of drive rollers (310) in the form of soft drive rollers disposed along
the document transport path (61);
a second set of idler rollers (312) moveable towards and away from the soft drive
rollers (310); and
a controller (95) arranged to control operation of the first and second sets of idler
rollers (212,312) in response to a number of signals from the set of sensors (208)
such that either only the first set of idler rollers (212) are interacting with the
hard drive rollers (210) or only the second set of idler rollers (312) is interacting
with the soft drive rollers (310) at any one time to deskew either a document of the
first type or a document of the second type which is different from the first type.
8. A document deskewing module according to claim 7, further comprising two actuatable
solenoids (230,234) each having an armature link (232,236), one of which (232) is
operatively coupled through a first set of arms (314) to the first set of idler rollers
(212) and the other one (236) through a second set of arms (316) to the second set
of idler rollers (312).
9. A document deskewing module according to claim 8, wherein the controller (95) is arranged
to actuate the solenoids (230,234) to cause the armature links (232,236) to act on
the first and second sets of arms (314,316) such that the first set of idler rollers
(212) move towards the hard drive rollers (210) to engage the hard drive rollers (210)
and the second set of idler rollers (312) move away from the soft drive rollers (310)
to disengage the soft drive rollers (310).
10. A document deskewing module according to any of claims 7 to 9, wherein the set of
sensors (208) comprises four sensors spaced along the document transport path (61).
11. A document deskewing module according to claim 10, wherein the controller (95) is
arranged to actuate the solenoids (230,234) only when at least two of the sensors
(208) provide an associated signal indicative of a deskewed document.
12. A bunch document depositing automated teller machine (10) for processing a mixed bunch
documents including checks and currency notes, the machine (10) comprising:
a set of sensors (208) arranged to detect when a document transported along a document
transport path (61) from the mixed bunch of documents is deskewed relative to a first
direction of travel from an upstream end of the document transport path to a downstream
end of the document transport path (61);
a first set of drive rollers (210) in the form of hard drive rollers disposed along
the document transport path (61);
a first set of idler rollers (212) moveable towards and away from the hard drive rollers
(210);
a second set of drive rollers (310) in the form of soft drive rollers disposed along
the document transport path (61);
a second set of idler rollers (312) moveable towards and away from the soft drive
rollers (310);
a pair of actuatable solenoids (230,234) each having an armature link (232,236), one
solenoid (230) being operatively coupled through its armature link (232) to a first
set of arms (314) to the first set of idler rollers (212) and the other solenoid (234)
being operatively coupled through its armature link (236) to a second set of arms
(316) to the second set of idlers (312); and
a controller (95) arranged to control actuation of the solenoids (230,234) and thereby
to control the first and second sets of idler rollers (212,312) such that the first
set of idler rollers (212) move away from the hard drive rollers (210) to disengage
the hard drive rollers (210) and the second set of idler rollers (312) move towards
the soft drive rollers (310) to engage the soft drive rollers (310) to deskew either
a check or a currency note which is being transported along the document transport
path from the upstream end to the downstream end of the document transport path.
13. A bunch document depositing ATM according to claim 12, wherein the set of sensors
(208) comprise four sensors.
14. A bunch document depositing ATM according to claim 13, wherein the controller (95)
is arrange to actuate the solenoids (230,234) only when at least two of the sensors
(208) provide an associated signal indicative of a deskewed document.