Document:

EXHIBIT 10.4
                                                                    ------------

                              THE DOCUMENT COMPANY
                                      XEROX

GERHARD MOLL
Senior Vice President/General Manager
Color Solutions Business Unit

September 19, 2001

Robert W. Hallman
President and Chief Executive Officer
Presstek Corporation
55 Executive Drive
Hudson, NH 03051

Dear Bob,

We have reviewed our strategy and your proposal for [CONFIDENTIAL TREATMENT
REQUESTED] /*/ distribution with [CONFIDENTIAL TREATMENT REQUESTED] /*/
management. I have found them not interested in the distribution of either the
DocuColor 400 or the DocuColor 233 presses in [CONFIDENTIAL TREATMENT REQUESTED]
/*/.

Accordingly, I propose the following:

Xerox will retain [CONFIDENTIAL TREATMENT REQUESTED] /*/ rights for the
DocuColor 400 and [CONFIDENTIAL TREATMENT REQUESTED] /*/ rights for the
DocuColor 233 in [CONFIDENTIAL TREATMENT REQUESTED] /*/, under the terms of the
current Amended Master Supply and Distribution Agreement.

Xerox will retain [CONFIDENTIAL TREATMENT REQUESTED] /*/ rights to distribute or
sell DocuColor 400 presses and [CONFIDENTIAL TREATMENT REQUESTED] /*/ rights for
the DocuColor 233 in [CONFIDENTIAL TREATMENT REQUESTED] /*/.

Except as modified in this letter, the Amended Master Supply and Distribution
Agreement will remain in full force and effect.

Please confirm your agreement with the above amendment to the Amended Master
Supply and Distribution Agreement by your signature below.

Very truly yours,

For Xerox: /s/ Gerhard Moll         For Presstek: /s/ Robert Hallman
           -----------------------                ------------------------------

Name:      Gerhard Moll             Name: Robert Hallman
     -----------------------------        --------------------------------------

Title:     Senior Vice President    Title: President and Chief Executive Officer
      ----------------------------         -------------------------------------

Date:      September 19, 2001       Date: September 25, 2001
     -----------------------------        --------------------------------------

Xerox Corporation
800 Phillips Road
Mailstop 129-33A             [XEROX LOGO APPEARS HERE]
Webster, New York 14580
Telephone: 716.422.7560
Facsimile: 716.422.9137

/*/ [CONFIDENTIAL TREATMENT REQUESTED] INDICATES MATERIAL THAT HAS BEEN OMITTED
AND FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED
MATERIAL HAS BEEN FILED WITH THE COMMISSION PURSUANT TO RULE 24B-2 PROMULGATED
UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.EX-10.1
                     AMENDMENT OF PROMISSORY NOTE

                    ASSIGNMENT OF OIL AND GAS LEASE

FOR THE VALUABLE CONSIDERATION, THE RECEIPT AND ADEQUACY OF WHICH
IS HEREBY ACKNOWLEDGED, HAYSEED STEPHENS OIL, INC., 4201 I-20
SERVICE ROAD, WILLOW PARK, TEXAS 76087,  HEREINAFTER CALLED
ASSIGNOR, DOES HEREBY BARGAIN, SELL, CONVEY AND ASSIGN UNTO KIT
KARSON CORPORATION, 4201 I-20 SERVICE ROAD, WILLOW PARK, TEXAS
76087, HEREINAFTER CALLED ASSIGNEE, CERTAIN RIGHTS AND INTEREST
IN AND TO THE OIL AND GAS LEASES DESCRIBED ON THE ATTACHED
EXHIBIT "A", AND THAT THE UNDERSIGNED, FOR THEMSELVES, THEIR
HEIRS, SUCCESSORS AND ASSIGNS, THAT THE ASSIGNORS ARE LAWFUL
OWNERS OF THE INTERESTS HEREIN ASSIGNED AND CONVEYED, AND THAT
THE ASSIGNORS HAVE GOOD RIGHT AND AUTHORITY TO CONVEY THE SAME,
AND THAT THE UNDERSIGNED WILL WARRANT AND DEFEND THE SAME AGAINST
THE LAWFUL CLAIMS AND DEMANDS OF ALL PERSONS WHOEVER CLAIMING BY,
THROUGH OR UNDER ASSIGNORS.

THIS ASSIGNMENT AND CONVEYANCE SHALL BE EFFECTIVE JANUARY 1, 1998.

IN WITNESS WHEREOF, THE UNDERSIGNED ASSIGNORS HAVE CAUSED THIS
INSTRUMENT TO BE EXECUTED THIS 2nd DAY OF FEBRUARY, 1998.

/s/  Hayseed Stephens
HAYSEED STEPHENS, PRESIDENT
HAYSEED STEPHENS OIL, INC.

STATE OF TEXAS

COUNTY OF PARKER

BEFORE ME, THE UNDERSIGNED AUTHORITY, ON THIS DAY PERSONALLY
APPEARED HAYSEED STEPHENS KNOWN TO ME TO BE THE PERSON WHOSE NAME
IS SUBSCRIBED TO THE FOREGOING INSTRUMENT, AND ACKNOWLEDGED TO ME
THAT HE EXECUTED THE SAME FOR THE PURPOSES AND CONSIDERATION
THEREIN EXPRESSED.

GIVEN UNDER MY HAND AND SEAL OF OFFICE ON THIS 2ND DAY OF
FEBRUARY, 1998.

NOTARY PUBLIC, STATE OF TEXAS

/s/  Debra A. Means
PRINTED NAME:  s/s Debra A. Means

COMMISSION EXPIRES:  1-6-2001

                                    EXHIBIT "A"

1.  25 PERCENT (.25)  OF THE WORKING INTEREST IN AND TO THE LIGHT
#1 GAS WELL, RRC #115731, API #42373820 AND 25% OF THE 75% OIL
AND GAS LEASE BETWEEN EUGENE DAVIS LIGHT AND VERNA P. LIGHT,
RECORDED IN VOLUME 1256, PAGE 1195, OF THE DEED RECORDS OF
PARKER COUNTY, TEXAS.

25 PERCENT (.25) OF THE WORKING INTEREST IN AND TO THE LIGHT
#2 GAS WELL, RRC #116806, API 4236732870 OF THE OIL AND GAS
LEASE BETWEEN EUGENE DAVIS LIGHT AND VERNA P. LIGHT, RECORDED
IN VOLUME 1256, PAGE 1195, OF THE DEED RECORDS OF PARKER
COUNTY, TEXAS.

2.  25 PERCENT (.25) OF THE WORKING INTEREST IN AND TO THE
WILLIAMS #1 GAS WELL, RRC #124117, API #423633023 AND 25
PERCENT OF THE 75 PERCENT OIL AND GAS LEASE BETWEEN NORMA
WILLIAMS, TED WILLIAMS AND CAROL WALDEN, RECORDED IN THE DEED
RECORDS OF PARKER COUNTY, TEXAS.  NORMA WILLIAMS IS RECORDED
IN VOLUME 1754, PAGE 50; TED WILLIAMS IS RECORDED IN VOLUME
1754, PAGE 54, AND CAROL WALDEN IS RECORDED IN VOLUME 1754, PAGE 58.

3.  25 PERCENT (.25) OF THE WORKING INTEREST IN AND TO THE DUNCAN
OIL AND GAS LEASE, RRC #117226, API #4236732819 AND 25 PERCENT
OF THE 75 PERCENT OIL AND GAS LEASE BETWEEN DOVIE B. DUNCAN,
RECORDED IN THE DEED RECORDS OF PARKER COUNTY, TEXAS, VOLUME
1264, PAGE 763.

4.  25 PERCENT (.25) OF THE WORKING INTEREST IN AND TO THE DOSS
OIL AND GAS LEASE RECORDED IN THE DEED RECORDS OF PARKER
COUNTY, TEXAS, VOLUME 1644, PAGE 1428.EX-10.2
                                  PROMISSORY NOTE

Effective Date:                                    County and State of
Transaction:

June 6, 2000                                       Parker County, Texas

MAKER (Name, Mailing Address and Zip Code): PAYEE (Name, Address and
Zip Code)

Ness Energy International, Inc.                    Hayseed Stephens
4201 I-20 Service Road                             4201 I-20 Service
Road
Willow Park, Texas 76087                           Willow Park, Texas
76087

Principal Amount:                                  Interest Rate:
$300,000.00                                        New York Prime Rate
                                                   Plus 2%

Number of Payments:         Amount of Each Payment:        Dates of
Payment:

One                         $ All the principle amount      On or
before
                              And all accrued interest      maturity,
                                                            June 6,
2001

1.  Consideration.  For value received the Maker promises to pay
to the order of the Payee the Principal Amount together with
interest according to the terms stated herein.

2.  Payment.  Principal and interest shall be payable in lawful
money of the United States.  Interest accrued to date shall
be first deducted from the payments and the balance of each
payment shall be applied to the Principal Amount.  Payment
shall be made at the address of the Payee on or before the due date.

3.  Prepayment.  Payment in advance may be made in any amounts,
in which event interest shall be prorated accordingly.

4.  Events of Default.  Any of the following events shall, for
purposes of this Note, constitute an event of default:

4a  Misrepresentation.  The making of any misrepresentation
by the Maker to the Payee for the purpose of obtaining
credit or an extension of credit.

4b.  Creditor's Meeting.  The calling of a meeting of the
Maker's creditors;

4c.  Committee of Creditors.  The appointment of a committee
of the Maker's creditors;

4d.  Assignment for Benefit of Creditors.  The making of an
assignment for the benefit of the Maker's creditors;

4e.  Receivership.  The filing of a voluntary or involuntary
petition for or the appointment of a receiver of the Maker's property;

4f.  Bankruptcy.  The filing of a voluntary petition by or
an involuntary petition against the Maker under any
provision of the Federal Bankruptcy Act;

4g.  Attachment.  The issuance of a warrant of attachment or
for distraint against any of the Maker's property;

4h.  Tax Lien.  The issuance of a notice of tax lien against
the Maker or the Maker's property;

4i.  Judgments.  The entry of a judgment against the Maker
or the Maker's property;

4j.  Nonpayment of Taxes.  The Maker's failure to pay,
withhold, collect or remit any tax or tax deficiency when
assessed or due;

4k.  Death.  The Maker's death;

4l.  Dissolution of Business.  The dissolution of the
Maker's Business;

4m.  Bulk Sale.  The making of a bulk sale by the Maker or
the giving of notice of intent to do so;

4n.  Encumbering Accounts Receivable or Property.  The
mortgage, pledge or assignment of the Maker's accounts
receivable or other property;

4o.  Suspension or Liquidation of Business.  The suspension
or liquidation of the Maker's usual business;

4p.  Failure to Furnish Financial Information.  The Maker's
failure, after demand by the Payee, to furnish financial
information to the Payee or permit the Payee to examine any
of the Maker's books of account or records;

4q.  Default in Performance of Other Obligations.  The
Maker's failure to pay on any other note or obligation held
by the Payee when due.

5.  Acceleration.  The unpaid principal and accrued interest
shall become immediately due and payable at the option of
the Payee or holder of this Note when:

5a.  Any installment is not paid when due and Payee has
given 10 days written notice by certified mail or delivery.

5b.  The Maker fails to perform any term of any collateral
instrument or ancillary agreement which secures or is
executed contemporaneously with this Note for more than 15 days.

5c.  Any event of default described herein remains
unresolved or uncorrected for more than 15 days.

6.  Non-Payment When due.  If any payment of principal and
interest due hereunder is not paid, the amount of such
installment which has matured shall bear interest at the
rate of 18% per annum from its maturity date until paid.

7.  Remedies.  In the event of default, the Payee shall have all
the rights, options, duties and remedies of a secured party
at law, in equity or by statute, including such remedies as
may be specified for secured parties generally under the
existing laws.  In addition, Payee shall have the right to
immediately retake possession of the Collateral Security for
this Note.

8.  Waivers and Applicable Law.  The Maker, sureties, endorsers,
and guarantors hereof severally waive demand for payment
notice of non-payment, protest and notice of protest of this
Note and consent to extensions of time for payment without
notice.  The construction validity and effect hereof shall
be governed by the laws of this state and the Maker consents
that suit or other collection proceedings to enforce this
Note may be brought against him by the Payee or holder of
this Note in the courts of the county in which the above
address of the Payee is located.

9.  Collection Fees.  If this Note is placed in the hands of an
attorney for collection, the Maker agrees to pay reasonable
collection costs including reasonable attorney's fees
therefore, whether or not suit is brought hereon.  In the
event of court action, the costs and fees shall be
determined by the court.  All costs and fees shall be added
to the Principal Amount and bear interest at the same rate
as on the Principal Amount.

10.  Right of First Refusal.  Should the Payee or Holder elect to
sell, assign, or transfer this note to any third party, for
a discount or for any amount of money less than the
outstanding principal balance of this note at that time,
then this sale, assignment, or transfer shall be
accomplished only with the mutual written consent of the
parties, and the Payee/Holder shall be obligated to first
make the same offer to the Maker under the same terms and
conditions as to the third party and the Maker shall have
the right to purchase this note for the reduced amount
within thirty (30) days of receipt of the notice from the
Payee/Holder.

11.  Usury Protection.  Should any interest charge or other
provision of this note violate any present or future usury
laws applicable to this Promissory Note, then the interest
rate or other terms shall automatically be reduced to the
maximum amount permitted by law.  The Maker shall have the
duty to bring such laws to the attention of Payee.  Failing
to do so before payment shall be waiver by Maker of those
restrictive limits.

12.  Late Charge.  A late charge of 10% of an overdue payment
shall be charged as a penalty on any payment that is past
due, in addition to any interest due for non-payment as
otherwise provided for herein.

13.  Collateral Security.  This Note is secured by:  This
promissory note is unsecured.

14.  Other Provisions:   There are no other oral or written
provisions or agreements                                 to
this promissory note.

1.  /s/  Bob Lee                          Ness Energy International,
Inc.
                                          Bob Lee

2.  /s/  Rick Palmer                      By: /s/ Harold "Hayseed"
Stephens
    Rick Palmer                           Harold "Hayseed" Stephens

Signatures of Witnesses of Maker's Signature     Signature of Maker

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