HP LaserJet MFP M476dw paper size mismatch when copying or scanning from ADF

Question

We have HP Color LaserJet MFP M476dw that has an issue when copying or scanning from the ADF. 
Put a single A4 sheet in the ADF and choose copy, with all settings correct & no resizing, and the output copy is moved down the page (increased top marging by a couple of inches).
My initial thoughts were a paper size issue (e.g. treating A4 as Letter or vice versa) but all settings look correct.  I have even done a reset and started over and the problem remains.
If I take the original and place it on the flatbed and copy from there with all the same settings then it works fine.
There is a similar issue when scanning from the ADF.  Again, scanning from the flatbed works fine.
I've tried all I can think of.  Does anyone have any further suggestions?  Could it be a fault in the ADF?
Here's the full device settings info:
Device Configuration
[Shop for Supplies][Support]
Product Information
Product Name:
HP Color LaserJet MFP M476dw
Formatter Number:
YF10C9X
Serial Number:
CNB7G2H6T9
Service ID:
24113
Firmware Datecode:
20131122
Disable Fax:
No
Telecom Version:
05-031-001
Location:
UK
ADF Installed:
Yes
Max Monochrome Print Quality:
600x8
Max Color Print Quality:
ImageREt 3600
Controller Number:
72
Duplexer Version:
0
Device Description:
HP Color LaserJet MFP M476dw
Language:
English
Default Settings:
Self-managed
Asset Number:
Your Company Name:
Contact Person:
Device Location:
Geo Location:
Product Security:
Off
Wired HW Address:
fc:15:b4:78:28:46
Wireless HW Address:
54:35:30:2f:d7:fc
Network In Use:
Wired
Host Name:
NPI782846
IPv4 Address:
192.168.9.18
IPv6 Address:
FE80::FE15:B4FF:FE78:2846
Total Memory:
256 MBytes
Available Memory:
117.7 MBytes
Installed Personalities and Options
PCL6
(20040201)
AirPrint
PCL
(20040201)
PDF
(20040201)
PS
(20040201)
USB Flash Drive:
Empty
Impressions
Total Impressions:
10684
Monochrome Impressions:
4799
Color Impressions:
5885
Total Equivalent Impressions (A4/Letter):
10684.0
Monochrome Equivalent Impressions (A4/Letter):
4799.0
Color Equivalent Impressions (A4/Letter):
5885.0
Duplex Sheets:
1223
Jam Events:
0
Mispick Events:
4
Photo Color Impressions:
0
Photo Monochrome Impressions:
0
USB Flash Drive Insertions:
0
Images Scanned to USB Flash Drive:
0
Copy Flatbed Images Scanned:
373
Copy ADF Images Scanned:
409
Copy Monochrome Impressions:
1122
Copy Color Impressions:
102
ADF Images Scanned to Host:
0
Flatbed Images Scanned to Host:
0
Images Scanned to E-mail:
0
Images Scanned to Network Folder:
0
Fax ADF Images Scanned:
23
Fax Flatbed Images Scanned:
1
Fax Impressions:
18
Images Sent from PC:
0
ADF Images Scanned:
1149
Flatbed Images Scanned:
779
Scanner Jam Events:
8
Paper Settings
Default Paper Size:
A4
Default Paper Type:
Plain
Tray 1 Size:
A4
Tray 1 Type:
Letterhead
Tray 2 Size:
A4
Tray 2 Type:
Plain
Paper Out Action:
Wait Forever
Manual Feed:
Off
Duplex:
Off
Bind:
Long Edge
Print
Auto Continue:
Off
Number of Copies:
1
Courier Font:
Regular
Orientation:
Portrait
Monochrome RET:
On
Wide A4:
No
Monochrome Resolution:
600
Monochrome Bits per Pixel:
8
Color Resolution:
600
Color Bits per Pixel:
32
IO Timeout:
120 Seconds
Jam Recovery:
Auto
Personality:
Auto
Print PS Errors:
Off
USB Flash Drive
Print Documents:
Number of Copies:
1
Paper Size:
A4
Paper Type:
Plain
Fit to Page:
On
Collation:
Off
Output Color:
Color
Print Photos:
Image Size:
10 x 15 cm
Paper Size:
A4
Paper Type:
Plain
Lighter/Darker:
<-----*----->
Number of Copies:
1
Output Color:
Color
Scan Settings:
Scan Resolution:
150
Scan File Type:
PDF
Scan Paper Size:
A4
Flatbed Scanner:
Single Page
Document Feeder:
1-Sided
File Name Prefix:
scan
Output Color:
Color
Copy
Optimize:
Auto Select
Lighter/Darker:
<-----*----->
Paper Size:
A4
Paper Type:
Plain
Collation:
On
Number of Copies:
1
Reduce/Enlarge:
Original=100%
Draft Mode:
Off
Tray Select:
Auto Select
Two-Sided:
1-Sided to 1-Sided
Multi-Page Copy:
Off
Fax
Your Company Name:
HP Fax
Answer Mode:
Automatic
Rings to Answer:
2
Distinctive Ring:
All Rings
Dial Prefix:
Off
Fax Resolution:
Fine
Lighter/Darker:
<-----*----->
Fit to Page:
On
Glass Size:
A4
Dialing Mode:
Tone
Redial if Busy:
On
Redial if No Answer:
Off
Redial if Comm. Error:
On
Detect Dial Tone:
Off
Billing Codes:
Off
Extension Phone:
On
Stamp Faxes:
Off
Private Receive:
Off
Confirm Fax Number:
Off
Allow Fax Reprint:
Yes
Print Duplex:
Off
Fax/Tel Ring Time:
20
Fax Speed:
Fast (V.34)
Error Correction:
On
Forward Fax:
Off
Block Junk Faxes:
Off
Phone Line Volume:
Medium
Alarm Volume:
Medium
Ring Volume:
Medium
Key-Press Volume:
Medium
Fax Confirmation:
Never
Fax Error Report:
Never
Include First Page:
On
Auto Log Print:
On
Print T.30 Trace:
Never
Paper Types
Plain:
Normal
HP Matte 90g:
Normal2
HP Matte 105g:
Heavy
HP Matte 120g:
Card stock
HP Matte 150g:
Extra Heavy
HP Matte 200g:
Extra Heavy
HP Glossy 120g:
Glossy
HP Glossy 150g:
Glossy
HP Tri Glossy 150g:
Glossy
HP Glossy 200g:
Heavy Glossy
Light 60-74g:
Light
HP EcoSMART Lite:
Extra Light
Intermediate:
Normal2
Mid-Weight 96-110g:
Heavy
Heavy 111-130g:
Card stock
Extra Heavy 131-175g:
Extra Heavy
Hvy Glossy 111-130g:
Light Glossy
X-Hvy Glossy 131-175g:
Glossy
Card Glossy 176-220g:
Heavy Glossy
Color Transparency:
Transparency
Labels:
Label
Letterhead:
Normal
Envelope:
Envelope
Heavy Envelope:
Heavy Envelope
Preprinted:
Normal
Prepunched:
Normal
Colored:
Normal
Bond:
Heavy
Recycled:
Normal
Rough:
Heavy
Heavy Rough:
Heavy
HP Tough Paper:
Tough Paper
Opaque Film:
Tough Paper
Energy Settings
Sleep/Auto Off After:
30 Minutes
Wake on These Events
USB Job
Yes
LAN Job
Yes
Wireless Job
Yes
Control Panel
Yes
Fax Ring
Yes
Shut Down After:
Never
LaserJet Updates Settings
Check Automatically
Yes
Prompt Before Install
Yes
Allow Downgrade
Yes
Allow Updates
Yes
Miscellaneous
Extended print modes modified:
No
Very Low Setting (Black Cartridge):
Prompt
Very Low Setting (Color Cartridges):
Prompt
Low Threshold (Black Cartridge):
5%
Low Threshold (Cyan Cartridge):
3%
Low Threshold (Magenta Cartridge):
3%
Low Threshold (Yellow Cartridge):
3%
Store Usage Data&colon;
On Supplies
USB Connection:
No
Font Source:
I (Internal)
Font Number:
23
Font Pitch:
10.00
Font Point Size:
12.00
Symbol Set:
PC-8
Form Length:
64 Lines
Append CR to LF:
No

Answer 1

To get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial product. You can do this at Commercial Forums.
I hope this helps!
R a i n b o w 7000I work on behalf of HP
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