Document:

<PAGE>

                                                                    EXHIBIT 4.23
                                PROMISSORY NOTE
                               November 30, 2000
                               -----------------
                                    (Date)

FOR VALUE RECEIVED, Color Imaging, Inc. a located at the address stated below
("Maker") promises, jointly and severally if more than one, to pay to the order
of General Electric Capital Corporation or any subsequent holder hereof (each, a
"Payee") at its office located at 1000 Windward Concourse Suite 403, Alpharetta,
GA 30005 or at such other place as Payee or the holder hereof may designate, the
principal sum of Five Hundred Thousand and 00/100 Dollars ($500,000.00), with
interest on the unpaid principal balance, from the date hereof through and
including the dates of payment, at a fixed interest rate of Ten and Two Hundred
Fourteen Thousandths percent (10.214%) per annum, to be paid in lawful money of
the United States, in Sixty (60) consecutive monthly installments of principal
and interest as follows:

       Periodic
     Installment              Amount
     -----------              ------

     1 through 59             $10,676.39

each ("Periodic Installment") and a final installment which shall be in the
amount of the total outstanding principal and interest. The first Periodic
Installment shall be due and payable on January 15, 2001 and the following
Periodic Installments and the final installment shall be due and payable on the
same day of each succeeding month (each, a "Payment Date"). Such installments
have been calculated on the basis of a 360 day year of twelve 30-day months.
Each payment may, at the option of the Payee, be calculated and applied on an
assumption that such payment would be made on its due date.

The acceptance by Payee of any payment which is less than payment in full of all
amounts due and owing at such time shall not constitute a waiver of Payee's
right to receive payment in full at such time or at any prior or subsequent
time.

The Maker hereby expressly authorizes the Payee to insert the date value is
actually given in the blank space on the face hereof and on all related
documents pertaining hereto.

This Note may be secured by a security agreement, chattel mortgage, pledge
agreement or like instrument (each of which is hereinafter called a "Security
Agreement").

Time is of the essence hereof. If any installment or any other sum due under
this Note or any Security Agreement is not received within ten (10) days after
its due date, the Maker agrees to pay, in addition to the amount of each such
installment or other sum, a late payment charge of five percent (5%) of the
amount of said installment or other sum, but not exceeding any lawful maximum.
If (i) Maker fails to make payment of any amount due hereunder within ten (10)
days after the same becomes due and payable; or (ii) Maker is in default under,
or fails to perform under any term or condition contained in any Security
Agreement, then the entire principal sum remaining unpaid, together with all
accrued interest thereon and any other sum payable under this Note or any
Security Agreement, at the election of Payee, shall immediately become due and
payable, with interest thereon at the lesser of eighteen percent (18%) per annum
or the highest rate not prohibited by applicable law from the date of such
accelerated maturity until paid (both before and after any judgment).

The Maker may prepay in full, but not in part, its entire indebtedness hereunder
upon payment of the entire indebtedness plus an additional sum as a premium
equal to the following percentages of the original principal balance for the
indicated period:
Prior to the first annual anniversary date of this Note:   Three percent   (3%)
Thereafter and prior to the second annual anniversary
  date of this Note:                                       Two percent     (2%)
Thereafter and prior to the third annual anniversary
  date of this Note:                                       One percent     (1%)
and zero percent (0%) thereafter, plus all other sums due hereunder or under any
Security Agreement.

It is the intention of the parties hereto to comply with the applicable usury
laws; accordingly, it is agreed that, notwithstanding any provision to the
contrary in this Note or any Security Agreement, in no event shall this Note or
any Security Agreement require the payment or permit the collection of interest
in excess of the maximum amount permitted by applicable law. If any such excess
interest is contracted for, charged or received under this Note or any Security
Agreement, or if all of the principal balance shall be prepaid, so that under
any of such circumstances the amount of interest contracted for, charged or
received under this Note or any Security Agreement on the principal balance
shall exceed the maximum amount of interest permitted by applicable law, then in
such event (a) the provisions of this paragraph shall govern and control, (b)
neither Maker nor any other person or entity now or hereafter liable for the
payment hereof shall be obligated to pay the amount of such interest to the
extent that it is in excess of the maximum amount of interest permitted by
applicable law, (c) any such excess which may have been collected shall be
either applied as a credit against the then unpaid principal balance or refunded
to Maker, at the option of the Payee, and (d) the effective rate of interest
shall be automatically reduced to the maximum lawful contract rate allowed under
applicable law as now or hereafter construed by the courts having jurisdiction
thereof. It is further agreed that without limitation of the foregoing, all
calculations of the rate of interest contracted for, charged or received under
this Note or any Security Agreement which are made for the purpose of
determining whether such rate exceeds the maximum lawful contract rate, shall be
made, to the extent permitted by applicable law, by amortizing, prorating,
allocating and spreading in equal parts during the period of the full stated
term of the indebtedness evidenced hereby, all interest at any time contracted
for, charged or received from Maker or otherwise by Payee in connection with
such indebtedness; provided, however, that if any applicable state law is
amended or the law of the United States of America preempts any applicable state
law, so that it becomes lawful for the Payee to receive a greater interest per
annum rate than is presently allowed, the Maker agrees that, on the effective
date of such amendment or preemption, as the case may be, the lawful maximum
hereunder shall be increased to the maximum interest per annum rate allowed by
the amended state law or the law of the United States of America.

The Maker and all sureties, endorsers, guarantors or any others (each such
person, other than the Maker, an "Obligor") who may at any time become liable
for the payment hereof jointly and severally consent hereby to any and all
extensions of time, renewals, waivers or modifications of, and all substitutions
or releases of, security or of any party primarily or secondarily liable on this
Note or any Security Agreement or any term and provision of either, which may be
made, granted or consented to by Payee, and agree that suit may be brought and
maintained against any one or more of them, at the election of Payee without
joinder of any other as a party thereto, and that Payee shall not be required
first to foreclose, proceed against, or exhaust any security hereof in order to
enforce
<PAGE>

payment of this Note. The Maker and each Obligor hereby waives presentment,
demand for payment, notice of nonpayment, protest, notice of protest, notice of
dishonor, and all other notices in connection herewith, as well as filing of
suit (if permitted by law) and diligence in collecting this Note or enforcing
any of the security hereof, and agrees to pay (if permitted by law) all expenses
incurred in collection, including Payee's actual attorneys' fees. Maker and each
Obligor agrees that fees not in excess of twenty percent (20%) of the amount
then due shall be deemed reasonable.

THE MAKER HEREBY UNCONDITIONALLY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM
OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF, DIRECTLY OR INDIRECTLY, THIS
NOTE, ANY OF THE RELATED DOCUMENTS, ANY DEALINGS BETWEEN MAKER AND PAYEE
RELATING TO THE SUBJECT MATTER OF THIS TRANSACTION OR ANY RELATED TRANSACTIONS,
AND/OR THE RELATIONSHIP THAT IS BEING ESTABLISHED BETWEEN MAKER AND PAYEE. THE
SCOPE OF THIS WAIVER IS INTENDED TO BE ALL ENCOMPASSING OF ANY AND ALL DISPUTES
THAT MAY BE FILED IN ANY COURT (INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS,
TORT CLAIMS, BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND STATUTORY
CLAMS.) THIS WAIVER IS IRREVOCABLE MEANING THAT IT MAY NOT BE MODIFIED EITHER
ORALLY OR IN WRITING, AND THE WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS,
RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS NOTE, ANY RELATED DOCUMENTS, OR
TO ANY OTHER DOCUMENTS OR AGREEMENTS RELATING TO THIS TRANSACTION OR ANY RELATED
TRANSACTION. IN THE EVENT OF LITIGATION, THIS NOTE MAY BE FILED AS A WRITTEN
CONSENT TO A TRIAL BY THE COURT.

This Note and any Security Agreement constitute the entire Agreement of the
Maker and Payee with respect to the subject matter hereof and supercedes all
prior understandings, agreements and representations, express or implied.

No variation or modification of this Note, or any waiver of any of its
provisions or conditions, shall be valid unless in writing and signed by an
authorized representative of Maker and Payee. Any such waiver, consent,
modification or change shall be effective only in the specific instance and for
the specific purpose given.

Any provision in this Note or any Security Agreement which is in conflict with
any statute, law or applicable rule shall be deemed omitted, modified or altered
to conform thereto.

                                        Color Imaging, Inc.

   /s/ Ann Shieh                        By: /s/ Sueling Wang
------------------------                   ---------------------------
(Witness)

    Ann Shieh                           Name: Sueling wang
------------------------                     -------------------------
(Print name)

5565 Tenbury Way                        Title: President
Alpharetta, GA 30022                          ------------------------
------------------------
(Address)                               Federal Tax ID #: 133453420
                                                         -------------

                                        Address:  4350 Peachtree Industrial
                                        Blvd. Ste 100, Norcross, Gwinnett
                                        County, GA 30071
<PAGE>

                            SUBORDINATION AGREEMENT
                            -----------------------

GENERAL ELECTRIC CAPITAL CORPORATION
1000 Windward Concourse
Suite 403
Alpharetta, Georgia 30202

RE: Color Imaging, Inc.

Dear Sir or Madam:

We understand that you propose to make a loan or otherwise extend credit to the
above-named Debtor on the security of the following equipment, complete with
proceeds thereof and all attachments and accessories:

      Hosokowa 2000 710 AFG Toner Mill and Filling Line more fully described on
      Exhibit A attached.

We further understand that you are unwilling to make such loan or otherwise
extend credit to the Debtor unless your security interest will have priority
over and be senior to any security interest or other claim now or hereafter
asserted by the undersigned with respect to the above described equipment.

Notwithstanding any security agreement heretofore or hereafter entered into
between us and the Debtor or any Financing Statement heretofore or hereafter
filed by us against the Debtor, we hereby agree and acknowledge that any
security interest, lien, claim or right now or hereafter asserted by us with
respect to the above-described equipment shall be subject, junior and
subordinate to any security interest, lien, claim or right now or hereafter
asserted by you with respect to the said equipment.

                                                Very truly yours,

                                                SOUTHTRUST BANK
                                                ------------------------

                                                By: /s/ Mark T. Johnson
                                                   ---------------------
                                                        Mark T. Johnson

                                                Title: VICE PRESIDENT
                                                      ------------------

                                                Date: 11/28/00
                                                     -------------------
<PAGE>

                     CERTIFICATE OF DELIVERY/INSTALLATION

Undersigned hereby certify that all equipment and property covered by a Security
Agreement or Chattel Mortgage dated 11/30/00 and Note dated 11/30/00, between
                                    --------                --------
General Electric Capital Corporation (together with its successors and assigns,
if any, "Secured Party") and undersigned has been delivered to undersigned and
found satisfactory, and that any and all installation has been satisfactorily
completed. In order to induce Secured Party to advance the loan evidenced by
such Note, undersigned hereby waive any defense, counterclaim or offset
thereunder as against Secured Party.

                                                 Color Imaging, Inc.

                                                 By:    /s/ Sueling Wang
                                                    --------------------------
                                                 Name:  Sueling Wang
                                                      ------------------------
                                                 Title: President
                                                       -----------------------
                                                 Date:  12-11-00
                                                      ------------------------<PAGE>

                                                                    EXHIBIT 10.1

                   ----------------------------------------
                      COLOR IMAGING, INC. & SUBSIDIARIES
                   ----------------------------------------

                   ----------------------------------------
                       EMPLOYMENT AGREEMENT and EXHIBITS

                              Michael W. Brennan
                   ----------------------------------------

                  4350 PEACHTREE INDUSTRIAL BLVD, SUITE 100
                            NORCROSS, GEORGIA 30071

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Color Imaging, Inc.                Employment Agreement                   Page 1
<PAGE>

                             EMPLOYMENT AGREEMENT

   THIS EMPLOYMENT AGREEMENT ("AGREEMENT") IS MADE JUNE 28,2000, BY AND BETWEEN
COLOR IMAGING, INC. AND ITS SUBSIDIARIES ("EMPLOYER") WHOSE ADDRESS IS 4350
PEACHTREE BLVD, SUITE 100, NORCROSS, GEORGIA 30071, HEREIN REFERRED TO AS
"EMPLOYER" AND MICHAEL W. BRENNAN OF 23546 LONG VALLEY ROAD, HIDDEN HILLS,
               -----------------------------------------------------------
CALIFORNIA. 91302, HEREIN REFERRED TO AS "EMPLOYEE."
-----------------

   WHEREAS EMPLOYER is in the business of developing, manufacturing and
marketing software, hardware and consumable printing products that are utilized
worldwide, and

   WHEREAS EMPLOYER's business objectives are to further develop, manufacture
and market software, hardware and consumable products compatible with Electron
Beam Imaging ("EBI") technology, including: toners, printer subsystems, press
subsystems, software and complete print engines, and

   WHEREAS EMPLOYER is a corporation duly organized under the laws of the State
of Delaware with operating subsidiaries which are California and Georgia
corporations, and

   WHEREAS EMPLOYER desires to hire Employee as Chairman and Chief Executive
                                                ----------------------------
Officer, under the terms herein to promote Employers business goals,
-------

   NOW, THEREFORE, in consideration of the promises and covenants hereinafter
set forth, the parties agree as follows:

                                  ARTICLE I
                              TERM OF EMPLOYMENT

     Section 1.01. This Agreement is for a five (5) year period, and shall be
renewed for successive five (5) year periods unless sooner terminated as
provided herein below. Notwithstanding the stated term, this Agreement does not
constitute a guarantee of employment by Employer for any fixed period as the
terms of employment may be changed in accordance with Section 1.03. Further,
that this Agreement, and Exhibits to this Agreement, constitute the only
agreement in effect and supercedes all previous agreements, either oral or in
writing, while Employee is employed by Employer. Further, that this Agreement
may only be modified by mutual consent and in writing by the Employee and
Employer.

    Section 1.02. Employee agrees that as an express term and condition of this
Agreement, that the Employee will not engage in a related business outside
Employee's employment with Employer, solicit or engage in business with any of
Employers clients or solicit Employer's employees for positions with other

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 2
<PAGE>

employers for a twelve-month period following Employee's employment termination
with Employer unless said term or condition is expressly waived in writing by
Employer.

     Section 1.03. Either party, at its election, may terminate this Agreement
on six months' written notice to the other party, Notwithstanding any
termination, Employee will be due any salary or bonuses earned or expenses
incurred prior to the effective date of the termination. Further, if Employer
terminates this Agreement, Employee will be due twelve (12) months' salary, paid
on an uninterrupted rateable basis consistent with compensation paid during
Employee's last month of employment, together with all regular benefits,
including but not limited to health insurance, 401k participation and life
insurance.

                                  ARTICLE II
                              DUTIES OF EMPLOYEE

    Section 2.01. Employee will devote Employee's entire productive time,
ability and attention to the business of the Employer during the term of this
Agreement. The Employee will not directly or indirectly render any services of a
business, commercial, or professional nature, to any other person or
organization, whether for compensation or otherwise, without the prior written
consent of the Employer. Said consent will not be unreasonably withheld by
Employer.

    Section 2.02. Employee hereby represents that the services to be performed
by Employee under the terms of this Agreement are of a special, unique, unusual,
extraordinary, and intellectual character which gives them a peculiar value, the
loss of which cannot be reasonably or adequately compensated in damages in an
action at law. Employee therefore expressly agrees that the Employer, in
addition to any other rights or remedies which the Employer may possess, will be
entitled to injunctive and other equitable relief to prevent a breach of this
Agreement by Employee.

    Section 2.03. At the commencement of Employee's employment, which
commencement date is at Employee's option but not later than August 15, 2000
                                                             ---------------
("Date of Employment"), Employee will perform his duties from Employer's
headquarters located at 4350 Peachtree Industrial Blvd, Norcross, GA 30071
("Headquarters"). However, at any time deemed necessary or advisable by the
Employer, for business purposes, the Employee will work at such other place or
places as may be determined by the Employer.

    Section 2.04. Employee is currently a resident of the State of California,
                                                          -------------------
and upon commencement of Employee's employment with Employer Employee is
required to relocate to Employers Headquarters as soon as practicable.
Employer will provide reasonable advances, prepay expense(s) and otherwise
reimburse Employee for all temporary housing, transportation and incidental
expenses related to the Employee's relocation, including but not limited to
travel, packing, moving, storage, house hunting by the Employee with Employee's
dependent(s), and escrow closing expenses related to the sale and purchase of a
new permanent residence. Sales commission(s) expenses in connection with the
sale of the Employee's primary residence are not reimbursable.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 3
<PAGE>

    Section 2.05. In the event that Employee is assigned a temporary work
location during the term of this Agreement at a place other than the Employee's
then assigned location, the Employer will provide reasonable advances, prepay
expense(s) and reimburse all temporary housing, transportation and incidental
expenses related to the Employee's temporary relocation. Further, if the
Employee is assigned permanently to a new work location, the Employer will
reimburse all Employee's, travel, moving and storage expenses related to such
relocation as further described in Section 2.04 herein above.

                                  ARTICLE III
                           COMPENSATION OF EMPLOYEE

    Section 3.01. As compensation for Employee's effort, commitment and services
to be rendered under this Agreement as Chairman and Chief Executive Officer,
                                       ------------------------------------
Employer will pay to Employee an annual salary, agreed bonus opportunities,
institute a life insurance retirement supplement program, provide Employer
sponsored group health life and other benefits, including participation any
Employer sponsored 401k or other retirement plans and grant stock options to
acquire an ownership interest in Color Imaging, Inc.'s common stock ("Common
Stock"), as follows:

    1. An annual salary of $150,000 paid ratably twice monthly, or in such
       frequency as is then in effect, and which salary may be increased by the
       Employer at will and any such change will not require the modification of
       this Agreement, and

    2. An annual salary increase of five percent (5%) or such greater increase
       as shall be determined by Employer's Board of Directors, and

    3. Participation in a discretionary bonus plan, as described in Exhibit I to
       this Agreement, and

    4. Participation in a Life Insurance, Retirement Supplement Plan, to be
       determined by the Board of Directors, as described in Exhibit II to this
       Agreement, and

    5. Participation by Employee in all Employer sponsored group health, life
       and other benefit programs, including participation in any Employer
       sponsored 401k or other retirement plans.

                                  ARTICLE IV
                               BUSINESS EXPENSES

    Section 4.01. Employee is authorized to incur reasonable business expenses
for promoting the business of the Employer, including expenditures for
entertainment and travel. The Employer will promptly reimburse the Employee for
all such business expenses provided that: (1) each such expenditure is of a
nature qualifying it as a proper deduction on the federal and state income tax
return of the Employer; and (2) the Employee furnishes Employer adequate and
timely records and other documentary evidence required by the Employer's policy
and by federal and state statutes and regulations issued by the appropriate
taxing authorities for the substantiation of each such expenditure as an income
tax deduction.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 4
<PAGE>

                                   ARTICLE V
                        PROPERTY RIGHTS OF THE PARTIES

     Section 5.01. A Proprietary information and Invention Agreement, Exhibit
III, is by this reference made a part hereof and included herein.

                                  ARTICLE VI
                              GENERAL PROVISIONS

      Section 6.O1. If any provision in this Agreement is held by a court of
competent jurisdiction to be invalid, void, or unenforceable, the remaining
provisions will nevertheless continue in full force without being impaired or
invalidated in any way.

     Section 6.02. This Agreement and all Exhibits supersede any and all other
agreements, either oral or in writing, between the parties hereto with respect
to the employment of the Employee by the Employer and contain all of the
covenants and agreements between the parties with respect to such employment in
any manner whatsoever. Each party to this Agreement acknowledges that no
representations, inducements, promises, or agreements, orally or otherwise, have
been made by any party, or anyone acting on behalf of any party, which are not
embodied herein, and that no other agreement, statement, or promise not
contained in this Agreement will be valid or binding. Any modification of this
Agreement will be effective only if in writing, signed by the parties hereto.

      Section 6.03. If for any reason, such as, illness, incapacitation, or
force majeure, either party is unable to perform under the terms of this
Agreement, both parties agree there will be no penalty incurred or due.

     Section 6.04. The entire agreement between the parties hereto, with respect
to the subject matter herein is contained in this Agreement. Except as expressly
provided herein to the contrary, the provisions of this Agreement are for the
benefit of the parties solely and not for the benefit of any other person,
persons, or legal entities.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 5
<PAGE>

     Section 6.05. This Agreement will be governed by and construed in
accordance with the laws of the State of Georgia, and BOTH PARTIES EXPRESSLY
WAIVE TRIAL BY JURY.

               Executed as of the day and year first above written,

               UNDERSTOOD AND ACCEPTED:

EMPLOYER: COLOR IMAGING, INC.                 EMPLOYEE: Michael W. Brennan

By: /s/ Sue-ling Wang                         By: /s/ Michael W. Brennan
    ---------------------------                   ----------------------------
    Dr. Sue-ling Wang, President                  Michael W. Brennan
    4359 Peachtree Industrial Blvd. Suite 100     23546 Long Valley Road
    Norcross, Georgia 30071                       Hidden Hills, California 91302

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 6
<PAGE>

                                   EXHIBIT I

                   EMPLOYMENT COMMISSION AND BONUS SCHEDULE

                                   ARTICLE I

                        COMMISSION AND BONUS COMMITMENT

     Section 1.01. Employer will pay to Employee a Discretionary Commission
and or Bonus ("BONUS"), as approved by the Board of Directors, and based on
Employee's commitments and achievements, as follows:

          A Bonus based on the accomplishment of mutually determined development
          and business objectives.

     Should any dispute arise between Employee and Employer regarding whether or
not an unpaid Bonus is due Employee, Employer will have the sole right to decide
such matter, and the decision of the Employer will be binding on Employee.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 7
<PAGE>

                                  EXHIBIT II

                 LIFE INSURANCE SUPPLEMENT RETIREMENT PROGRAM

                                   ARTICLE I

                           CASH VALUE LIFE INSURANCE

     Section 1.01. Subject to the approval of the Employer's Board of Directors,
Employer will provide for Employee a Life insurance Early Retirement Program
(hereinafter "Plan") at Employer's expense, using a permanent life insurance
policy, with the Employer as beneficiary, to fund a supplemental personal
Employee retirement plan. The Plan will generally be equivalent, to the extent
practicable, to that which the Employer provides other executive officer(s).
Employer will use its best efforts to obtain the required approval of the Board
of Directors of the Plan for the Employee.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 8
<PAGE>

                                  EXHIBIT III

                 PROPRIETARY INFORMATION & INVENTION AGREEMENT

In consideration of Employee's employment or continued employment by Employer,
and the compensation now and hereafter paid to Employee, Employee hereby agree
as follows:

     1.  Recognition of Employer's Rights; Nondisclosure.   At all times during
the term of Employee's employment and thereafter, Employee will hold in
strictest confidence and will not disclose, use, lecture upon or publish any of
the Employer's Proprietary Information (defined below), except as such
disclosure, use or publication may be required in connection with my work for
the Employer, or unless an officer of the Employer expressly authorizes such in
writing. Employee hereby assigns to the Employer any rights Employee may have or
acquire in such Proprietary Information and recognize that all Proprietary
Information shall be the sole property of the Employer and its assigns and the
Employer and its assigns shall be the sole owner of all patent rights,
copyrights, trade secret rights and all other rights throughout the world
(collectively, "Proprietary Rights") in connection therewith.

     The term "Proprietary Information" shall mean trade secrets, confidential
knowledge, data or any other proprietary information of the Employer. By way of
illustration, but not limitation, "Proprietary Information" includes (a)
inventions, trade secrets, ideas, processes, formulas, source and object codes,
data, programs, other works of authorship, know-how, improvements, discoveries,
developments, designs and techniques (hereafter collectively referred to as
"Inventions"); and (b) information regarding customers of the Employer, plans
for business development, marketing, business plans, budgets and financial
statements of any kind, costs and suppliers; and information regarding the
skills and compensation of other employees of the Employer or employees of any
company that contracts to provide services to the Employer.

     2.  Third Party Information.  Employee understands, in addition, that the
Employer has received and in the future will receive from third parties
confidential or proprietary information ("Third Party Information") subject to a
duty on the Employer's part to maintain the confidentiality of such information
and to use it only for certain limited purposes. During the term of Employee's
employment and thereafter, Employee will hold Third Party Information in the
strictest confidence and will not disclose (to anyone other than personnel who
need to know such information in connection with their work for the Employer) or
use, except in connection with Employee's work for the Employer, Third Party
Information unless expressly authorized by an officer of the Employer in
writing.

     3.   Assignments of Inventions.

          3.1. Assignment.   Employee hereby assigns to the Employer all
Employee's right, title and interest in and to any and all Inventions (and all
Proprietary Rights with respect thereto) whether or not patentable or
registrable under copyright or similar statutes, made or conceived or reduced to
practice or learned by Employee, either alone or jointly with others, during the
period of Employee's employment with the Employer. Inventions assigned to or as
directed by the Employer by this paragraph 3 are hereafter referred to as
"Employer Inventions." Employee recognizes that this Agreement does not require
assignment of any invention that the Employee developed entirely on Employee's
own time without using the Employer's equipment, supplies, facilities, or trade
secret information except for those inventions that either: (1) Relate at the
time of conception or reduction to practice of the invention to the Employers
business, or actual or demonstrably anticipated research or development of the
Employer, (2) Result from any work performed by the Employee for the Employer.

================================================================================
Color Imaging, Inc.                Employment Agreement                   Page 9
<PAGE>

          3.2. Works for Hire.  Employee acknowledges that all original works of
authorship which are made by Employee (solely or jointly with others) within the
scope of Employee's employment and which are protectable by copyright are "works
made for hire," as that term is defined in the United States Copyright Act (17
U.S.C. Section 101.).

     4.   Enforcement of Proprietary Rights.  Employee will assist Employer in
every proper way to obtain and from time to time enforce United States and
foreign Proprietary Rights relating to Employer Inventions in any and all
countries. To that end Employee will execute, verify and deliver such documents
and perform such other acts (including appearances as a witness) as the Employer
reasonably requests for use in applying for, obtaining, perfecting, evidencing,
sustaining and enforcing such Proprietary Rights and the assignment thereof. In
addition, Employee will execute, verify and deliver assignments of such
Proprietary Rights to the Employer or its designee. Employee's obligation to
assist the Employer with respect to Proprietary Rights relating to such Employer
Inventions in any and all countries shall continue beyond the termination of
Employee's employment, but the Employer shall compensate Employee at a
reasonable rate after Employee's termination for the time actually spent by
Employee at the Employers request of such assistance.

     In the event the Employer is unable for any reason, after reasonable
effort, to secure Employee's signature on any document needed in connection with
the actions specified in the preceding paragraph, Employee hereby irrevocably
designate and appoint the Employer and its duly authorized officers and agents
as Employee's agent and attorney in fact, to act for and in Employee's behalf to
execute, verify and file any such documents and to do all other lawfully
permitted acts to further the purposes of the preceding paragraph thereon with
the same legal force and effect as if executed by Employee. Employee hereby
waives and quitclaims to the Employer any and all claims, of any nature
whatsoever, which Employee now or may hereafter have for infringement of any
Proprietary Rights assigned hereunder to the Employer.

     5.  Obligation To Keep Employer Informed.  During the period of Employee's
employment, Employee will promptly disclose to the Employer fully and in writing
and will hold in trust for the sole right and benefit of the Employer any and
all Inventions. In addition, after termination of Employee's employment,
Employee will disclose all patent applications filed by Employee within a year
after termination of employment. At the time of each such disclosure, Employee
will advise the Employer in writing of any Inventions that Employee believes
fully qualifies for protection; and Employee will at that time provide to the
Employer in writing all evidence necessary to substantiate that belief. Employee
understands that the Employer will keep in confidence and will not disclose to
third parties without Employee's consent any proprietary information disclosed
in writing to the Employer pursuant to this Agreement relating to Inventions
that qualify fully for protection. Employee will preserve the confidentiality of
any Invention that does not fully qualify for protection.

     6.   Additional Activities.  Employee agrees that during the period of
Employee's employment by the Employer, Employee will not, without the Employer's
express written consent, engage in any employment or business activity other
than for the Employer, and for the period of Employee's employment by the
Employer and for twelve (12) months after the date of termination of Employee's
employment by the Employer, Employee will not (i) induce any employee of the
Employer (or any employee of any company that contracts with the Employer to
provide services for the Employer) to leave the employ of the Employer (or the
employ of any company contracting to provide services for the Employer) or (ii)
solicit the business of any customer of the Employer (other than on behalf of
the Employer).

      7.   No improper Use of Material.  During Employee's employment by the
Employer, Employee will not improperly use or disclose any confidential
information or trade secrets, if any, of any former employer or any other person
to whom Employee has an obligation of confidentiality, and Employee will not
bring onto the premises of the Employer any unpublished documents or any
property belonging to any former employer or any other person to whom Employee
has an obligation of confidentiality unless consented to in writing by that
former employer or person.

      8.   No Conflicting Obligation.  Employee represents that Employee's
performance of all the terms of this Agreement and as an Employee of the
Employer does not and will not breach any agreement to keep in confidence
information acquired by Employee in confidence or in trust prior to Employee's

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Color Imaging, Inc.                Employment Agreement                  Page 10
<PAGE>

employment by the Employer. Employee has not entered into, and Employee agrees
Employee will not enter into, any agreement either written or oral in conflict
herewith.

     9.  Return of Employer Documents.  When Employee leaves the employ of the
Employer, Employee will deliver to the Employer any and all patient notes,
reports, records, drawings, memoranda, devices, formulas, and other documents,
together with all copies thereof, and any other material containing or
disclosing any Employer Inventions, Third Party Information or Proprietary
Information of the Employer. Employee further agrees that any property situated
on the Employer's premises and owned by the Employer, including disks and other
storage media, filing cabinets or other work areas, is subject to inspection at
any time with or without notice.

     Employee has been informed and acknowledges that the unauthorized taking of
the Employer's trade secrets: (i) could result in civil liability, and that, if
willful, could result in an award for triple the amount of the Employer's
damages and attorneys' fees; and (ii) is a crime punishable by imprisonment or
by a fine, or by both. EMPLOYER AND EMPLOYEE EXPRESSLY WAIVE TRIAL BY JURY.

     10.  Legal and Equitable Remedies.  Because Employee's services are
personal and unique and because Employee may have access to and become
acquainted with the Proprietary Information of the Employer or of Third Party
Information, the Employer shall have the right to enforce this Agreement and any
of its provisions by injunction, specific performance or other equitable relief,
without bond, without prejudice to any other rights and remedies that the
Employer may have for a breach of this Agreement.

     11.  Notices.  Any notices required or permitted hereunder shall be in
writing and given to the appropriate party at the Headquarters or permanent
residence address of the party as indicated in this Agreement, or as may change
from time to time. Such notice shall be deemed given upon personal delivery to
the appropriate address or if sent by certified or registered mail, three days
after the date of mailing.

     12.  General Provisions.

          12.1.  Governing Law.  This Agreement will be governed by and
construed according to the laws of the State of Georgia.

          12.2.  Entire Agreement.  This Agreement is the final, complete and
exclusive agreement of the parties with respect to the subject matter hereof and
supercedes and merges all prior discussions between Employer and Employee. No
modification of or amendment to this Agreement, nor any waiver of any rights
under this Agreement, will be effective unless in writing signed by the
party(ies). Any subsequent change or changes in Employee's duties, salary or
compensation will not affect the validity of this Agreement. As used in this
Agreement, the period of Employee's employment includes any time that Employee
may be retained by the Employer as a consultant or independent contractor.

          12.3.  Severability.  If one or more of the provisions in this
Agreement are deemed unenforceable by law, then the remaining provisions will
continue in full force and effect.

          12.4.  Successors and Assigns.  This Agreement will be binding upon
Employee's heirs, executors, administrators and other legal representatives and
will be for the benefit of the Employer, its successors and its assigns.

          12.5.  Survival.  The provisions of this Agreement shall survive the
termination of Employee's employment and the assignment of this Agreement by the
Employer to any successor in interest or other assignee.

          12.6.  Employment.  Employee agrees and understands that nothing in
this Agreement shall confer any rights with respect to continuation of
Employee's employment by the Employer. Employee agrees and acknowledges that
Employee's employment is based on the mutual consent of the Employer and
Employee as otherwise provided in this Agreement.

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Color Imaging, Inc.                Employment Agreement                  Page 11
<PAGE>

          12.7.  Waiver.  No waiver by the Employer of any breach of this
Agreement shall be a waiver of any preceding or succeeding breach. No waiver by
the Employer of any right under this Agreement shall be construed as a waiver of
any other right. The Employer shall not be required to give notice to enforce
strict adherence to all terms of this Agreement.

     EMPLOYEE UNDERSTANDS THAT THIS AGREEMENT AFFECTS EMPLOYEE'S RIGHTS TO
INVENTIONS EMPLOYEE MAKES DURING EMPLOYEE'S EMPLOYMENT AND RESTRICTS EMPLOYEE'S
RIGHT TO DISCLOSE OR USE THE EMPLOYER'S CONFIDENTIAL INFORMATION DURING OR
SUBSEQUENT TO EMPLOYEE'S EMPLOYMENT.

     EMPLOYEE HAS READ THIS AGREEMENT CAREFULLY AND UNDERSTAND ITS TERMS.

EMPLOYER: COLOR IMAGING, INC.                 EMPLOYEE: Michael W. Brennan

By: /s/ Sue-ling Wang                         By: /s/ Michael W. Brennan
    ------------------------------                ------------------------------
    Dr. Sue-ling Wang, President                  Michael W. Brennan
    4350 Peachtree Industrial Blvd, Suite 100     23546 Long Valley Road
    Norcross, Georgia 30071                       Hidden Hills, California 91302

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Color Imaging, Inc.                Employment Agreement                  Page 12

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