Exhibit 99.4

                                    ADDENDUM
                                       TO
                             STOCK OPTION AGREEMENT


                  The following provisions are hereby incorporated into, and
are hereby made a part of, that certain Stock Option Agreement (the "Option
Agreement") by and between ENCAD, Inc. (the "Corporation") and
____________________________________ ("Optionee") evidencing the stock option
(the "Option") granted this day to Optionee under the terms of the
Corporation's 1999 Stock Option/Stock Issuance Plan, and such provisions are
effective immediately. All capitalized terms in this Addendum, to the extent
not otherwise defined herein, shall have the meanings assigned to them in the
Option Agreement.

                        INVOLUNTARY TERMINATION FOLLOWING
                     CORPORATE TRANSACTION/CHANGE IN CONTROL

              1. To the extent the Option is, in connection with a Corporate
Transaction, to be assumed in accordance with Paragraph 6 of the Option
Agreement, the Option shall not accelerate upon the occurrence of that
Corporate Transaction, and the Option shall accordingly continue, over
Optionee's period of Service after the Corporate Transaction, to become
exercisable for the Option Shares in one or more installments in accordance
with the provisions of the Option Agreement. However, immediately upon an
Involuntary Termination of Optionee's Service within eighteen (18) months
following such Corporate Transaction, the assumed Option, to the extent
outstanding at the time but not otherwise fully exercisable, shall
automatically accelerate so that the Option shall become immediately
exercisable for all the Option Shares at the time subject to the Option and
may be exercised for any or all of those Option Shares as fully vested shares.

              2. The Option shall not accelerate upon the occurrence of a
Change in Control, and the Option shall, over Optionee's period of Service
following such Change in Control, continue to become exercisable for the
Option Shares in one or more installments in accordance with the provisions
of the Option Agreement. However, immediately upon an Involuntary Termination
of Optionee's Service within eighteen (18) months following the Change in
Control, the Option, to the extent outstanding at the time but not otherwise
fully exercisable, shall automatically accelerate so that the Option shall
become immediately exercisable for all the Option Shares at the time subject
to the Option and may be exercised for any or all of those Option Shares as
fully vested shares.

              3. The Option as accelerated pursuant to this Addendum shall
remain so exercisable until the earlier of (i) the Expiration Date or (ii)
the expiration of the one (1)-year period measured from the date of the
Optionee's Involuntary Termination.




              4. For purposes of this Addendum the following definitions
shall be in effect:

                   (i)  An INVOLUNTARY TERMINATION shall mean the termination
         of Optionee's Service by reason of:

                        (A) Optionee's involuntary dismissal or discharge by
         the Corporation for reasons other than Misconduct, or

                        (B) Optionee's voluntary resignation following (A) a
         change in Optionee's position with the Corporation (or Parent or
         Subsidiary employing Optionee) which materially reduces Optionee's
         duties and responsibilities or the level of management to which
         Optionee reports, (B) a reduction in Optionee's level of
         compensation (including base salary, fringe benefits and target
         bonus under any corporate performance based bonus or incentive
         programs) by more than fifteen percent (15%) or (C) a relocation of
         Optionee's place of employment by more than fifty (50) miles,
         provided and only if such change, reduction or relocation is
         effected by the Corporation without Optionee's consent.

              (ii)     A CHANGE IN CONTROL shall be deemed to occur in the
         event of a change in ownership or control of the Corporation
         effected through either of the following transactions:

                        (A) the acquisition, directly or indirectly, by any
         person or related group of persons (other than the Corporation or a
         person that directly or indirectly controls, is controlled by, or is
         under common control with, the Corporation) of beneficial ownership
         (within the meaning of Rule 13d-3 of the Securities Exchange Act of
         1934, as amended) of securities possessing more than thirty-five
         percent (35%) of the total combined voting power of the
         Corporation's outstanding securities pursuant to a tender or
         exchange offer made directly to the Corporation's stockholders, or

                        (B) a change in the composition of the Board over a
         period of thirty-six (36) consecutive months or less such that a
         majority of the Board members ceases, by reason of one or more
         contested elections for Board membership, to be comprised of
         individuals who either (i) have been Board members continuously
         since the beginning of such period or (ii) have been elected or
         nominated for election as Board members during such period by at
         least a majority of the Board members described in clause (i) who
         were still in office at the time the Board approved such election or
         nomination.

              5. The provisions of Paragraph 1 of this Addendum shall govern
the period for which the Option is to remain exercisable following the
Involuntary Termination of Optionee's Service within eighteen (18) months
after the Corporate Transaction or Change in Control and shall supersede any
provisions to the contrary in Paragraph 5 of the Option Agreement.




                  IN WITNESS WHEREOF,  ENCAD,  Inc. has caused this Addendum
to be executed by its  duly-authorized officer as of the Effective Date
specified below.

                                   ENCAD, INC.


                                   By:
                                      ----------------------------------------

                                   Title:
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EFFECTIVE DATE:
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