EXHIBIT 10.4

                               SECURED DEMAND NOTE

$100,000.00                                                  March 27, 1998

For value received,  Howtek,  Inc., a Delaware company with a principal place of
business at 21 Park Avenue, Hudson, New Hampshire 03051 (the "Company") promises
to pay to the order of Lawrence A. Howard,  at 660 Madison Ave., 14th Floor, New
York,  NH 10021 (the  "Payee"),  the  principal  amount of one hundred  thousand
dollars  ($100,000).  Principal  on this Note shall be due and  payable in full,
together with interest  accrued and any penalties  provided for herein,  on five
(5) day's written notice.  Payments will be made by certified check delivered to
the Payee or the  holder  at the  address  furnished  to the  Borrower  for that
purpose.  Principal  on this note  shall  bear  interest  at the rate of 12% per
annum, compounded monthly.

The Borrower may pay this Note in whole or in part without penalty or premium at
anytime prior to maturity.

The principal on this Note is secured by a security  interest in certain  assets
of the Company  granted  pursuant to a certain  Security  Agreement  between the
Borrower and the Payee of even date hereof.  This Note is entitled to all of the
benefits and obligations of said Security Agreement.  Upon any Event of Default,
as defined in the Security Agreement,  this Note shall be forthwith  accelerated
and due and payable for an amount equal to the principal then  outstanding.  The
Borrower  hereby  agrees to  execute  and make all  appropriate  filings  of any
financing  statements or other filings which shall evidence the Borrower's grant
of a security  interest to the Payee in order to secure the  performance  of the
obligations of the Borrower pursuant to this Note.

The  Borrower  and  all  endorsers  and  guarantors  of the  Note  hereby  waive
presentment (other than on maturity), demand, notice of nonpayment,  protest and
all other  demands  and  notices in  connection  with the  delivery  acceptance,
performance  or enforcement of this Note and agree to pay upon demand all costs,
charges and expenses of collecting amounts due under the Note or the Agreements,
including  attorney's  fees and  expenses,  court costs and other  disbursements
incurred  or paid by the  Payee in  connection  therewith.  This  Note  shall be
binding  upon and inure to the benefit of the  Borrower  and the Payee and their
respective successors and assigns.

This Note shall be governed by and  construed  in  accordance  with the internal
laws of the State of New Hampshire.

IN WITNESS WHEREOF,  Borrower has caused its duly authorized  officer to execute
this Note as an instrument under seal as of the date first written above.

HOWTEK, INC.

    /s/ W. Scott Parr              
- -----------------------------------
By: W. Scott Parr, President & CEO

Witness /s/ Connie Webster             
       ----------------------------



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                               SECURITY AGREEMENT

Howtek,  Inc. a Delaware  corporation  with a principal  place of business at 21
Park Ave. (hereinafter called the "debtor"), subject to the terms and conditions
hereof, hereby assigns,  mortgages,  pledges,  transfers and grants a continuing
security  interest  to  Lawrence  A.  Howard  (hereinafter  called the  "Secured
Party"),  in all of the  Debtor's  right and  interest  in and to all  accounts,
contract rights, rights to payment, inventory,  equipment,  intangible property,
patents and other property or rights of any kind. The property  described  above
shall hereafter be collectively referred to as the "Collateral."

The  Collateral  is pledged and  mortgaged  and a security  interest  therein is
granted to the  Secured  Party,  as  security  for payment of all sums due under
certain  Secured Term Note (the "Note") of the Debtor in the original  aggregate
principal  amount of $100,000.  (hereinafter  referred to as the  "obligations")
issued by the Debtor to Lawrence A. Howard, dated as of March 27, 1998.

     1. Covenants Re Collateral.

     (a) The Debtor will join with the Secured  Party in  executing  appropriate
financing  statements under the Uniform Commercial Code (the "Code") and will at
all times and from time to time, at the request of the Secured Party,  do, make,
execute  and deliver  all such  additional  and  further  acts,  things,  deeds,
assurances,  instruments  and  financing  statements  as the  Secured  Party may
require,  to vest more  completely  and assure to the  Secured  Party its rights
hereunder  in  or  to  the  Collateral,   including  without   limitation,   the
preparation,  execution and delivery of any additional  financing statements and
security  agreements  extending to any Collateral  which is, or may subsequently
become located  outside the State of New Hampshire.  The Debtor hereby  appoints
the Secured Party as its authorized  agent and  attorney-in-fact  to execute and
file appropriate financing statements,  continuation  statements and termination
statements in each and every  jurisdiction  in which the Collateral is or may be
located, now or in the future.

     (b) The Secured Party shall be under no obligation to take steps  necessary
to preserve its rights in any Collateral  against other parties but may do so at
its  option  and at the  expense  of the  Debtor.  At its  option and upon prior
written notice to the Debtor, the Secured Party may discharge any taxes,  liens,
security  interests or other encumbrances to which any Collateral is at any time
subject, and may, upon the failure of the Debtor so to do, purchase insurance on
any Collateral and pay for the  preservation  thereof,  and the Debtor agrees to
reimburse the Secured Party on demand for any payments made or expenses incurred
by the Secured Party pursuant to the foregoing authorization.  The Secured Party
may, at any time after  default  hereunder,  take control of the  Collateral  to
which the Secured Party is entitled hereunder or under applicable law.

     2. Events of Default.

If any of the  following  circumstances  or events shall occur and be continuing
(individually, an "Event of Default"):

     (e)  failure by the Debtor to pay the principal on the Note when due by its
          terms,  or any installment  thereof,  for ten (10) after notice of any
          default  in  payment  has



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          been made in writing to the Debtor by the Secured Party; or

     (f)  the cessation of the business of the Debtor as a going concern; or

     (g)  the  failure  of the Debtor to  perform  or  observe  any other  term,
          covenant or agreement contained in this Agreement,  or the Note on its
          part  to be  performed  or  observed  and  any  such  failure  remains
          unremedied  for thirty (30) days after  notice of such breach has been
          provided to the Debtor; or

     (h)  the Debtor's ability to pay the Obligations  shall be impaired because
          the Debtor  shall be involved in financial  difficulties  as evidenced
          (i) by its  admitting  in  writing  its  inability  to pay  its  debts
          generally as they become due; (ii) by its  commencement of a voluntary
          case under Title 11 of the United States Code, the Federal  Bankruptcy
          Code,  as  from  time to time in  effect,  or by its  authorizing,  by
          appropriate  proceedings of its Board of Directors or other government
          body, the  commencement of such voluntary case; (iii) by its filing an
          answer or other  pleading  admitting  or failing to deny the  material
          allegations of a petition filed against it commencing provided,  or by
          its failing to controvert timely the material  allegations of any such
          petition;  (iv) by the entry of an order of relief in any  involuntary
          case  commenced  under such laws,  except that the Debtor shall have a
          reasonable  period, not to exceed ninety (90) days, to have such order
          revoked;  (v) by its  otherwise  seeking  relief as a debtor under any
          applicable  law, of any  jurisdiction  relating to the  liquidation or
          reorganization  of debtors or to the modification or alteration of the
          rights of creditors,  or by its  consenting to or  acquiescing in such
          relief;  (vi)  by the  entry  of an  order  by a  court  of  competent
          jurisdiction (a) finding it to be bankrupt or insolvent;  (b) ordering
          or approving its  liquidation,  reorganization  or any modification or
          alteration of the rights of its creditors, or (c) assuming custody of,
          or appointing a receiver or other  custodian for, all or a substantial
          part of its property or assets;  or (vii) by its making an  assignment
          for  the  benefit  of,  or  entering  into  a  composition  with,  its
          creditors,  or  appointing  or  consenting  to  the  appointment  of a
          receiver  or  other  custodian  for all or a  substantial  part of its
          property;

then,  and in any such event,  the  Secured  Party may, by notice to the Debtor,
declare the entire unpaid principal amount of the Note, all interest accrued and
unpaid  thereon  and all  other  amounts  payable  under  this  Agreement  to be
forthwith due and payable,  whereupon the Note, all such accrued  interest shall
become and be forthwith due and payable, without presentment, demand, protest or
further  notice of any kind,  all of which are  hereby  expressly  waived by the
Debtor.

     3. Annulment of Defaults.

Section 2 above is  subject  to the  condition  that,  if at any time  after the
principal  of any of the  Note or the  Obligations  shall  have  become  due and
payable, and before any judgment or decree for the payment of the moneys so due,
or any thereof,  shall have been  entered,  all arrears of interest upon all the
Note and all other sums  payable  under the Note or this  Agreement  (except the
principal of the Note which by such declaration shall have become payable) shall
have been duly paid, and every other default shall have been made good or cured,
then and in every such case the Secured Party shall, by written instrument filed
with the Debtor, rescind and annul such declaration and its consequences; but no
such rescission or



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annulment  shall extend to or affect any subsequent  default or Event of Default
or impair any right consequent thereon.

     4. Rights and Remedies on Default.

Upon the  occurrence of any event of Default,  and at any time  thereafter,  the
Secured  Party shall have the rights and  remedies of a secured  party under the
Code in  addition  to the rights and  remedies  provided  herein or in any other
instrument or agreement executed by Debtor.  Wherever  notification with respect
to the  sale or  other  disposition  of  Collateral  is  required  by law,  such
notification  of the time and place of public sale, or of the date after which a
private  sale or  other  intended  disposition  is to be made,  shall be  deemed
reasonable  if given to the Debtor at least  twenty (20) days before the time of
such  public  sale,  or the date  after  which  any such  private  sale or other
intended  disposition  is to be made, as the case may be.  Expenses of retaking,
holding, preparing for sale, selling or the like with respect to the Collateral,
shall  include  the Secured  Party's  reasonable  attorneys'  fees and the legal
expenses.

     5. General Intangibles and Names.

Upon the  occurrence  of any  Event of  Default  or at any time  thereafter,  on
request of the  Secured  Party,  the Debtor  shall  execute  and deliver to such
Secured Party any and all  instruments as may be required to further vest in the
Secured Party the right to the Collateral.

     6. Waiver of Demand.

DEBTOR WAIVES ANY AND ALL RIGHTS THAT IT MAY HAVE TO NOTICE OF JUDICIAL  HEARING
IN ADVANCE OF THE  ENFORCEMENT OF ANY OF THE SECURED  PARTY'S RIGHTS  HEREUNDER,
INCLUDING,  WITHOUT  LIMITATION THE SECURED PARTY'S RIGHTS FOLLOWING AN EVENT OF
DEFAULT TO TAKE  IMMEDIATE  POSSESSION OF THE COLLATERAL AND EXERCISE ITS RIGHTS
WITH RESPECT  THERETO.  With respect both to the Obligations and the Collateral,
the Debtor  assents to any extension or  postponement  of the time of payment of
any  other  indulgence,  to  any  substitution,   exchange  or  release  of  any
collateral,  to the  addition  or  release of any party or person  primarily  or
secondarily  liable,  to the  acceptance  of  partial  payment  thereon  and the
settlement,  compromising,  adjusting or  discharge of any thereof,  all in such
manner and at such time or times as the Secured Party may deem advisable.

     7. General.

Any condition or restriction  hereinabove imposed with respect to the Debtor may
be waived,  modified or suspended  by the Secured  Party but only on the Secured
Party's  consent in writing  and only as so  expressed  in such  writing and not
otherwise. The Secured Party shall not be deemed to have waived any of its other
rights  hereunder or under any other  agreement,  instrument  or paper signed by
Debtor  unless such waiver be in writing  and signed by the  Secured  Party.  No
delay or omission on the part of the Secured Party in exercising any right shall
operate  as a waiver  of such  right or any  other  right.  A waiver  on any one
occasion  shall not be  construed as a bar to, or waiver of, any right or remedy
on any  future  occasion.  The  Secured  Party's  rights and  remedies,  whether
evidenced  hereby  or by any other  agreement,  instrument  or  paper,  shall be
cumulative and may be exercised separately or concurrently.  Any demand upon, or
notice to,  Debtor that the Secured  Party may elect to give shall be  effective
when deposited in the mails by first class mail,  postage prepaid,  addressed to
Debtor



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at the address shown at the beginning of this Security  Agreement or as modified
by any notice given after the date hereof. If any term or condition hereof shall
be  invalid  or  unenforceable  to any  extent or in any  application,  then the
remainder  hereof  shall not be  affected  thereby,  and each and every term and
condition  hereof  shall be void and  enforced to the fullest  extent and in the
broadest  application  permitted  by  law.  Whenever  there  are no  Obligations
outstanding  hereunder  and no commitment on the part of any Secured Party under
any  agreement  which  might  give rise to any  Obligation,  the Debtor may then
terminate  this  Agreement  upon  written  notice  to the  Secured  Party.  This
Agreement  and  all  rights  and  obligation  hereunder,  including  matters  of
construction,  validity and performance,  shall be governed by the internal laws
of the State of New Hampshire.

IN WITNESS WHEREOF,  this Security  Agreement is executed as an instrument under
seal by each of the undersigned  Debtor and Secured Party as of this 27th day of
March, 1998.

Howtek, Inc.


    /s/ W. Scott Parr                
- ----------------------------------
By: W. Scott Parr, President & CEO       Witness: /s/ Connie Webster
                                                 -------------------------
    /s/ Lawrence A. Howard               Witness: /s/  Jessy Fazekas
- ----------------------------------               -------------------------
Lawrence A. Howard