Lexmark MX710 MX711 MX810 MX811 MX812 MS810 MS811 MS812 Printer Misidentify Paper as A4 Not Letter
Updated: May 6, 2021
Lexmark MS810 Series Printer Recognizes Fuser as A4 and compresses print to fit the page.
Complaint Descriptions From End Users Include;
Margin off issues
Text Alignment Issue
Preprinted forms Misalignment
A matter has been brought to our attention where Lexmark MS810 fusers rebuilt using aftermarket reset PCB boards, can cause the Lexmark printer to misidentify the paper being used as A4 instead of Letter. The error is affected a limited number of endusers but it is still worth understanding.
The MS810 series fuser reset PCB is coded to register the fuser as an A4 fuser (40X7745) rather than a Letter fuser (40X7743).
When a customer installs these fusers with this type of reset PCB installed, the printer slightly shrinks the text/images being printed so as to fit onto a slightly more narrow A4 page, whereas an OEM 40X7743 does not do this.
It appears Lexmark makes different versions of the reset PCB based on which type of fuser is being installed. Fuser types 00 and 05 are Letter-sized fusers and fuser types 02, 03, 07 & 08 are A4 sized fusers.
When the aftermarket companies designed the MS810 fuser reset PCB, they extracted code for the EEPROM from an A4 fuser.
The reset PCB is changing printer settings. The OEM makes separate letter fusers and A4 fusers. The only difference between them would likely be the reset PCB. It’s possible that the reset PCB, which is made in China, could be set for A4, which is China’s standard size paper.
Lexmark MS810 fusers rebuilt using aftermarket reset PCB, can cause to the printer to misidentify the paper being used as A4 instead of Letter.
Lexmark Models Affected
Lexmark MX710 MX711 MX810 MX811 MX812 XM5170 XM5163 MS810 MS811 MS812 XM7170 XM7155 XM7163
Specifications:
Expected Duty Life: 200,000 pages
Kit Part Number: 40X8420
Part Number: 40X8420
Lexmark MX710 MX711 MX810 MX811 MX812 MS810 MS811 MS812 Maintenance Kit Contents:
1 Transfer Roller: 40X7582
3 Pickup Roller Assembly: 40X7593
1 Separation Roller Assembly: 40X7713
1 Fusing Assembly: 40X7743
The original case as described by the customer
We have been getting your rebuilt fusers for a customer of ours that prints cardstock signs and labels on MS810 printers because the newest OEM fusers are having problems fixing toner to the cardstock they use.
Your fusers have been great for that issue. However, we ran into a problem when they print labels. We started noticing the print wasn’t lining up in the labels. So we started to troubleshoot and found that the alignment is not a problem with an OEM fuser but becomes a problem with one of your rebuilt fusers.
What we found is that it seems the fusers we got from you are making the machine think it's printing on A4 paper when the fusers are marked type 00 for letter size. When we install your fuser, the print shrinks slightly from both sides while the OEM type 00 fuser prints in the normal letter size. Is it possible we are getting the wrong fusers even though they are marked type 00? Or is there something else I may be missing?
We have brought this issue to a number of the PCB supplier's attention and they all claim it is a nonissue. Metrofuser has secured limited quantities of the correct fuser reset board. Contact sales@metrofuser.com details.
Other Helpful Laser Printer Service Technical Support Resources
Metrofuser is a leading global innovator, manufacturer of printer parts, equipment, diagnostics, repair information and systems solutions for professional users performing critical tasks. Products and services include hp printer parts, printers, and printer repair training. Parts include hp printer parts such as printer fusers, printer maintenance kits, and other hp printer replacement parts. The company's, customers include office equipment dealerships, online retailers, repair centers and MPS service providers nationwide. Metrofuser has been named to Inc. Magazine’s fastest-growing companies five consecutive years.