DOWNLOAD Sharp AR-M35 / AR-M450 (serv.man89) Service Manual ↓ Size: 210.05 KB | Pages: 4 in PDF or view online for FREE

DR26022002-1

Sharp Electronics (UK) Ltd., Technical Services Group

ARM350/450

Document skews when fed from DSPF (AR-EF1)

Using test print 71 produced using SIM 64-1, ensure that the skew is present on both
sides of a 2 sided copy. If the skew is only present on the ‘face down’ side fed through the
DSPF then this skew is caused by misalignment of the DSPF, which can be corrected by
carrying out the Scanner unit distortion adjustment described in the service manual,
section 9-3. Misalignment will produce a page which has two sides of the image skewed
and two sides not skewed. A brief version of this adjustment is shown below

                                    

                                                                            

   

Each division on the cam is equal to 0.5mm

Should it be necessary, a further adjustment for misalignment can be carried out by re-
aligning the diagonal adjustment of the DSPF, as described in the service manual, section
9-6. A brief version of this adjustment is shown below.

              
N.B.  DSPF Skew Specification

Skew Feed 

Within +/- 3mm

Lead Edge Skew

A4 or less : 

1mm or less

Greater than A4:

1.5mm or less

TECHNICAL BULLETIN

DR26022002-1

Sharp Electronics (UK) Ltd., Technical Services Group

Replacement of PS support roller

1. 

Remove the upper transport unit.

                                 

2. 

Remove the paper feed roller cover.

                                     

3. 

Remove the four screws securing the SPF paper guide (the paper guide cannot be
removed at this point.)

                                                

4. 

Remove the two hinge stop plates from each hinge and raise the DSPF.

5. 

Remove the OC Cover.

                                               

6. 

Remove the 8 screws securing the paper feed unit (do not remove the feed unit at
this point.)

DR26022002-1

Sharp Electronics (UK) Ltd., Technical Services Group

                                      
7. 

Remove the 4 screws securing the hinge to the paper feed unit.

                                    

8. 

Lower the paper feed unit from the cabinet to allow enough clearance behind the
SPF paper guide to remove it from the paper feed unit.

9. 

Remove the existing PS support roller by removing the 2 screws and plate springs
securing the PS support roller shaft to the paper guide and replace the PS support
roller with the modified version.

                             
10. 

Reassemble in the reverse order and check skew, realigning as necessary.
Replacement of the PS support roller is all that should be necessary to correct the
skew. However, in extreme circumstances it may be necessary to also replace the
SPF paper guide with a modified version. If this becomes necessary it will be
necessary to attach a mylar sheet to the paper guide.

PS REAR MYLAR  - P/No. PSHEP4915FCZZ – Price Rank AE.

DR26022002-1

Sharp Electronics (UK) Ltd., Technical Services Group

AREF1

All

34-6

PCLR-0471FCZZ

PCLR-0471FCZ1

AF

1

PS Support
Roller

7/2001

3

AREF1

All

34-4

PGIDM1953FCZZ

PGIDM1953FCZ2

EQ

1

Paper feed
PG SPF

10/2001

3

1. Interchangeable.

4. Not Interchangeable.

2. Current type can be used in place of new type.

New type cannot be used in place of current type.

5. Interchangeable if replaced with same types of related

parts in use.

3. Current type cannot be used in place of new type.

New type can be used in place of current type.

6. Others.

Parts marked with "

" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones

for maintaining the safety and performance of the set.

PS Support Roller from July 2001 production
Paper feed PG SPF

from October 2001 production