SHARP ARE003 Technical Report

Date: Apr. 21, 1995

DIGITAL COPIER : AR-5040

1. STANDARDIZATION OF THE PARTS CODES FOR THE IC IN THE ICU PWB.

2. PREVENTION OF NOISE IN THE SHIELD BOX.

3. CORRECTION OF THE PARTS GUIDE.

4. DISCONTINUANCE OF THE SHIELD MYLAR IN THE SHIELD BOX UNIT TO IMPROVE PRODUCTIVITY.

5. PREVENTION OF UNCLEAN COPI ES DUE TO THE CURLI NG OF THE REAR END OF THE COPY PAPER
DURING DOUBLE SIDE COPY OPERATIONS.

6. IMP R OVEMENT OF PUSHER OPER ATIO NS IN TH E FINISHER UNIT.

No. : ARE-003

1. Standardization of the parts codes for the IC in the ICU PWB.

1.Model name: AR-5040

2.General: An error for the parts codes of the IC (Silk No. IC 33) used in the ICU circuit board was

found, listing two different model codes for the same part. To correct this error the parts
codes have been standardized as described below.

3.Description:

VHISN74LS19N­VHISN74LS19NS

These are the same IC,
but the parts codes are
listed as different
models.

The parts codes have been

⇒

standardized and listed as:
VHISN74LS19NS

4.Action: From 1995 February production.

2. Prevention of noise in the shield box.

1.Model name: AR-5040 (200 V line only)

2.General: A problem of abnormal noise occurred in the shield box unit. To alleviate this problem,

a shield plate was added as shown in the figure for those units bound for areas
supplied with the 200 V line.

SHARP CORPORATION Reprography Division

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Green

C

3.Description:

Chassis UN 200V line.

Step screws.

200V Line shield box unit.

4.Action: From the start of 1994 November production.

Chassis step screws.
Position

Addition of Shield
plate A.

Screws are used in 6
locations to fix shield plate
A to the shield box unit.

3. Correction of the parts guide.

1.Model name: AR-5040

2.General: The harness attached to the optional PWB (SCSI PWB, WP PWB) was also listed in

the machine unit itself, and the parts guide listing has therefore been corrected.

3.Description: Corrected (discontinued) parts and their locations.
P/G No. 11 -38
P/G No. 35 -29

DHAI-2363FCZZ

P/G No. 11 -39 DHAI-2386FCZZ

4.Action: From the start of mass production.

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