10 Common HP LaserJet Printer Problems and How To Fix Them

  • By ericjgough
  • 10 Sep, 2015

Before calling a repair technician for your HP LaserJet printer problems, try these simple fixes.

Do you want to cut service costs on your HP LaserJet printers? Who doesn’t? Here are some common problems and solutions to fix them.

Problem #1: Toner does not stick to the page or smears.

Solutions: The fuser assembly may be defective or it’s at the end of its life. The solution is to replace the fuser. The fuser is considered a consumable and can be replaced simply referring to the owner’s manual. Or, you may have a defective toner cartridge. Simply replace the cartridge and see if this fixes the problem. Also, toner may have spilled into the printer and may just need to be cleaned out.

Problem #2: Paper Jams.

Solutions: This can be caused by dust, grime or dirt has made its way into the printer.  Other causes could be worn rollers or the wrong paper type is being used. Periodically clean the printer and check the user’s manual to make sure that the paper being used is recommended by the manufacturer. If the paper you are using is too light or too heavy, paper jams can occur.

Problem #3: Printer is displaying a 50.4 error message.  This indicates a problem with the power supply.

Solution: If the printer is plugged into a UPS or a power strip, unplug it and plug the printer directly into the wall outlet. A laser printer should never be plugged into a UPS because of the power surges required by the printer. These surges are required by the printer to keep the fuser assembly warm.

Problem #4: Trouble printing envelopes.

Solutions: Envelopes can cause problems for laser printers. Choose envelopes that are close to 20 lbs. paper in weight and thickness. Also, make sure that the adhesive on the envelope is capable of withstanding the heat that the fuser puts out to keep the printing on the page. If you don’t, the envelopes will come out of the printer already sealed. If envelopes are coming out of the printer wrinkled, they may be too stiff for the paper path. Open the rear of the printer and let them exit at that location.

Problem #5: Part of or the entire printed page is faded.

Solutions: There are usually three conditions that cause this problem. The printer is either low in toner, the density is set too low, or the Economode may be turned on. Remove the toner cartridge and shake it. This will redistribute the toner and often will temporarily solve the problem. However, this usually indicates it is time to install a new cartridge. Make sure the Economode is turned off.  Run a self-test and look at the settings for print density. You may want to increase the settings.

Problem #6: Printer is displaying a 79 error.

Solution: A 79 error can be the result of a problem with the network print server that services the printer. When troubleshooting a 79 error, first open the printer folder from the start menu on the print server to make sure there are no jobs pending. A 79 error can also indicate a failure of a printer add-on component, such as an MIO card or a RAM module. All add-ons should be removed and then added back to the printer one by one to determine which module may be at fault.

Problem #7: Can’t find a driver for a particular operating system.

Solutions: As new operating systems are released, new drivers need to be loaded for your exiting printers. It is best to consult the owner’s manual and find out what printers the drivers will emulate. While not all of the functionality of the printer will be available under the emulation, at least basic printing will work. Most HP printers will print with the HP LaserJet II driver installed, although specific options, such as duplexing, will not work.

Problem #8: Printer is not printing from the expected tray.

Solution: Look in two places to correct this particular error. First, look on the printing PC.  If the application is set to print to the wrong paper tray, correct it with the application by clicking on “Print Properties” and find the tray selection source. Second, check the printer. Make sure that the paper size on the control panel matches what is actually in the paper tray.

Problem #9: Ghosting (This is an issue when image prints correctly, but a much lighter copy also prints elsewhere).

Solutions: This could be due to a bad power outlet. Plug in another printer to the same outlet to see if the same thing happens. If it does, have an electrician check the voltage in the outlet and correct the problem. Another cause could be the drum or the imaging kit is near the end of life. To correct this problem install a new preventative maintenance kit, which includes an imaging kit and drum.

Problem #10: Printer picks up all the paper from the manual feed tray rather than one sheet.

Solutions: The pad that is responsible for separating the paper has likely worn out and needs to be replaced. It is also possible that the paper is wet due to humidity. Make sure the paper is properly stored and that it is “fanned” before putting it into the printer.


With any more questions you can always call MIDCOM at (800) 643-2664 or chat us up on FacebookTwitterGoogle+  and  LinkedIn !

Control your laser printer maintenance costs!  Download our FREE eboook now.  Click here

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By ericjgough 10 Jul, 2017

Barcode scanners are an essential must if you are looking to optimize your business practices regarding inventory management. Barcode scanners can make inventory taking a much easier task. If you don’t need them all the time, then renting barcode scanners when you do can be a smart decision.

Some of the most common reasons to rent are:

  • During peak seasons
  • Doing quarterly, semi-annual, or annual inventory
  • Equipment is being maintenanced
  • Special events

Barcode scanners provide the following benefits:

·        more accurate results

·        improve speed of process

·        cost savings

Benefits outlined:

1)    Provides Accurate Results:

·        Counting by hand instead of scanners can provide errors and inaccuracies. Barcode scanners guarantee reliable results. It is crucial for fiscal responsibility to have an accurate account of your inventory and stock levels and know exactly what products are on hand, allowing you to make better decisions when ordering and allocation of available resources.


2)    Provides Faster Process:

·        Using barcode scanners cuts down on the amount of time required to do inventory compared to manually counting inventory.


3)     Provides Cost Savings:

·        When it takes less time and people to count inventory with barcode scanners , there is a savings in the amount of money spent on labor costs.

For more information on barcode scanner rental and to learn more about your options for all your thermal label printer , labeling and barcode scanning needs, call us as (800) 643-2664 and immediately talk to one of our friendly representatives; or chat us up on Facebook , Twitter , Google+ and LinkedIn !

By ericjgough 04 May, 2017

Line matrix printers are the true and steady, reliable old friend. They tend to get overlooked and forgotten to the new and cooler laser printers on the market. However, they shouldn’t.

Below are 7 reasons why. The following are advantages that line matrix printers can provide you, especially for those of you that print high volume of multi-part forms and barcode labels.

By ericjgough 12 Apr, 2017

Dot matrix printers are the true and steady, reliable old friend. They tend to get overlooked and forgotten to the new and cooler laser and thermal printers on the market.  However, they shouldn’t. Below is a summary highlighting both the advantages and disadvantages dot matrix printers offer.

By ericjgough 14 Feb, 2017
Hi-tech manufacturing is extremely complex and ever evolving. Technology changes at the speed of light these days and so hi-tech producers need their systems to be able to keep up with the production requirements accordingly within its infrastructure. Selling shelf life and design cycles are now averaging a mere 12-18 months at most. And with every new design or product enhancement, there is a need at that production level to modify and factor in the changes in the product manufacturing process.

All these products have a wide array of small parts and components that amalgamate together to create the new products. High amounts of detail on each of the components are required to begin at the point-of-assembly. This is needed in order to meet the demands to protect brand image and provide higher levels of customer service in regards to quality effective replacement service, as well as have a comprehensive understanding of what is impacting product failure rates and service issues.

Every part and component needs to be defined and identified in a database with its serial number and date of manufacture, during its entire product lifecycle -- so it can tracked and traced for access within the production and distribution systems, and then by field service techs and customers if repair or warranty, or product recall issues arise. It is impossible to provide effective customer service without it. Simply put … unhappy customers cause decreased demand, causing poor sales and a diminished brand image.

For the manufacturer, when components are traceable, data is readily available to pinpoint fall-out rates early in the cycle. Thus, making it easier to adjust production output levels and have the right inventory on hand to meet the timely demands for hot swaps and swap-outs to reflect in-service life, and warranty stock, and service and replacement, and non-serviceable parts.

By ericjgough 30 Jan, 2017
Real time data equals greater visibility. So very true especially in transportation and logistics.  Logistics is all about providing efficient, timely service to keep your customers up and running.

Providing and maintaining service levels and operational efficiencies in this extremely competitive market is paramount. Being able to provide real-time analytics for efficient tracking and tracing of shipped products enhances customer service and thus improving customer loyalty and maintain and grow business levels.

Visibility utilizing mobile barcode scanners, printers and tablet computers and provides you a vantage point into every area of your transportation operation, allowing to proactively maintain your fleet, track drivers and shipments instantly, improve turnaround times and more.

Overview of Benefits Real-Time Data can provide :

By ericjgough 04 Jan, 2017

Laser printers come in a wide variety of sizes and features. From monochrome (1-colour, black), colour and multi-function (MFD) all-in-one copy/scan/fax printers with high speed and high dpi print resolutions, and advanced NFC technology, wi-fi connectivity, there are a vast number of brands and models on the market to choose from, such as HP, Lexmark, Dell, Epson, Samsung and Brother, to name a few.

Laser printers are mainly used in business office settings and home computing use. Examples of what can be printed are documents, letters, spreadsheets, presentations, stationary, labels, flyers and brochures. Monochrome laser printers only print black text. Color laser printers add color to the process by using four toners: black, magenta, cyan and yellow. Large format printers are those that can print sizes larger than 8 by 11. Large format laser printers may be monochrome or color, and are used to print posters, signs and billboards. Laser printers with high resolution (high dpi (dots per inch)) provide clear, sharp and crisp graphics.

By ericjgough 06 Sep, 2016

Looking for speed? Look no further. TSC’s MX240P barcode label printer offers that and more. The TSC MX240P   is the fastest industrial thermal transfer barcode printer on the market for high volume enterprise applications, including WIP, compliance labeling and asset management, to name a few.  

Below is a summary of its top features and benefits, as well as a list of the applications well suited for the TSC MX240P :

·        536 MHz processor, with 512 MB Flash and 512 MB SDRAM memory

·        provides print speed of up to 18ips

·        yields cleanest, high quality barcodes with its thermal smart control print technology

·        rugged design with heavy duty die-cast aluminum

·        4.3” color LCD with the new UI design including 6-button menus and touch panel operation

·        provides precise media positioning and preprinted label identification

·        ribbon capacity of 600 meters

·        3 Resolutions to choose from - 203dpi, 300dpi or 600dpi

·        Plug-n- play capabilities with TSPL-EZ firmware

·        USB host interface for stand-alone application

·        auto TPH resolution switch detection

·        energy efficient with its ENERGY STAR* qualification

Key Applications of the TSC MX240P :

·        High Volume Printing

·        Work In Process

·        Compliance Labeling

·        Asset Management

·        Shipping and Receiving

·        Inventory Management

·        Electronics Labeling

·        Jewelry Labeling

By ericjgough 09 Aug, 2016

For those of you with HP DesignJet products in use and in the field, did you know about UPD? If not, keep reading as it can save you money and time in many areas.

This Universal Print Driver (UPD) includes 2 drivers (HP-GL/2 and PostScript) and is touted as eliminating many of the management hassles and high costs associated with multiple print drivers.

Key Benefits:

   ·        supports a wide range of HP DesignJet printers (see list below)

   ·        provides IT departments with greater control and effectiveness, and end-user productivity

   ·        reduces printer-related costs (fleet management, integration, installation, updates, maintenance, helpdesk related, etc.)

   ·        streamlines printer deployment and management

   ·        Client operating systems supported: Microsoft Windows 8, Pro, Enterprise; 32 and 64 bit Microsoft Windows 7 Starter, Home Premium, Professional, Enterprise, and Ultimate; 32 and 64 bit

   ·        Server operating systems supported: Windows Server 2012R2, Windows Server 2012, Microsoft Windows Server 2008R2, Microsoft Windows Server 2008

Qualifying Models:

   ·        HP DesignJet T120 Printer

   ·        HP DesignJet T520 Printer series

   ·        HP DesignJet T790 Printer series

   ·        HP DesignJet T795 Printer

   ·        HP DesignJet T9230 Printer series

   ·        HP DesignJet T1300 PostScript Printer

   ·        HP DesignJet T1530 Printer series

   ·        HP DesignJet T2300 Multifunction Printer

   ·        HP DesignJet T2530 Multifunction Printer series

   ·        HP DesignJet T3500 Production MFP

   ·        HP DesignJet T7100 Printer

   ·        HP DesignJet T7200 Production Printer

   ·        HP DesignJet Z5400 PostScript Printer

   ·        HP DesignJet Z6200 Photo Production Printer

   ·        HP DesignJet Z6600 Production Printer

   ·        HP DesignJet Z6800 Photo Production Printer

If interested, below is the link to download*:


For HP DesignJet repair and other barcode labeling solutions or all your printer and labeling equipment needs, call us as (800) 643-2664 and immediately talk to one of our friendly representatives; or chat us up on Facebook , Twitter , Google+ and LinkedIn !

Keep you HP DesignJet printers running!  Download eBook now. click here
By ericjgough 26 Jul, 2016
Thermal printheads are a vital part and extremely sensitive and expensive. Important care and maintenance is important to the optimal functioning.

Below are a collection of questions and answers to help provide you with information and direction to follow to get the most out of your printheads :

1. Why is preserving the printhead life important?

  • save money as printheads are very expensive
  • reduce poor print quality and marginally scannable bar codes, due to worn out printheads

2. What causes wear to the printhead ?

  • friction
  • prolonged use at high printhead energies (i.e. heat)
  • excessive buildup or ink residue on the printhead
  • misuse or abuse by the operator

3. What protects the printhead from abrasion?

  • a thin, hard coating over the heating elements protect them from abrasion while providing efficient heat transfer
  • the ribbon also protects the printhead from abrasion damage. It is separates the printhead from the printing substrate to shield it from abrasive movements, and also has a lubricated backcoat that allows it to flow smoothly over the printhead

4. What causes abrasive damage to printheads ?

  • when a label or tag stock is wider than the ribbon (which causes the media on either side of the ribbon’s edges passes directly over the printhead ).
  • using a ribbon with an ineffective backcoat
  • using inappropriate media for thermal transfer
  • improper cleaning of the printhead
  • some ribbons with backcoats specially formulated to clean the printhead

5. How can abrasive damage be recognized?

  • the first sign is usually a decrease in image quality
  • also can be failure of one or more heating elements, which shows as a “white line” through the printed image where the printhead no longer has the ability to transfer ink

6. Do quality ribbons require lower energy settings?

  • yes, a ribbon and substrate combination that is matched for optimum print quality at the lowest energy settings can extend printhead life

7. What is "Printhead Buildup"?

  • buildup is the accumulation of deposits of ink, ribbon backcoat, paper particles, label adhesive, dust, dirt, etc. over time

8. When does printhead buildup become a problem?

  • buildup becomes a problem when maintenance guidelines are not followed and print quality results
  • any deposit on the printhead , if not removed regularly, can insulate the heating elements from the ribbon and thus require printing at higher energy settings, which can ultimately shorten printhead life
  • burned-out pixels in the printhead result in unscannable bar codes

9. How to prevent buildup from becoming a problem?

  • purchase a good quality ribbon and printing substrate
  • minimize the accumulation of dust by keeping the printer cover closed
  • follow the OEM’s recommended operating, maintenance, and printhead cleaning schedule

10. How long will a printhead last if the best possible ribbons are used?

  • this will depend on the printhead design and other factors such as printer speed, energy settings, static, substrate, and ribbon quality
  • a good ribbon should be guaranteed not to cause significant degradation due to buildup or abrasion throughout the printhead’s rated life
  • the industry standard is that the printhead should last for one million linear inches of use

Be sure to keep these answers and tips handy for quick reference. For more information on printheads and to learn more about your options for all your printer, labeling and barcode printing and scanning needs, call us at (800) 643-2664 and immediately talk to one of our friendly representatives; or chat us up on Facebook , Twitter , Google+ and LinkedIn !

Keep your thermal label printers running!  Download our   FREE thermal label printer maintenance eBook   now.   click here

By ericjgough 20 Jul, 2016

Line matrix printers may be considered old technology compared to newer options, but they have stood the test of time and offer many benefits. In addition to their reliability, durability, cost savings and less complexity they offer many key applications. 

Below is a summary highlighting the 9 key applications for the various formats:

1. Labeling & Inventory Forms:

·        offer online form and label generation capabilities

·        controls all graphic functions thus lowering host computer programming and processing times

·        ability to print food labels and barcodes with non-toxic inks unlike laser printers, and print freezer grade food labels

·        straight paper path and heat free fusion system allows for ability to print complex sticker and label cutouts without paper jams

·        ability to print on a wide variety of stock


2. Invoice Forms:

·        compatible with enterprise host platforms to print on-demand invoices right on the production floor

·        ability to print paper stock widths from 3” to 17” and up to 6-part forms

·        text, graphics and barcodes can all be printed on the same invoice

·        driver and configuration options for Windows and most major mainframe computer applications are available

·        data security ribbon cartridges available for printing on multi-part invoices


3. Manifest & Bill of Lading (BOL) Forms:

·        able to accommodate single form and multiple form printing

·        zero-tear feature single form documents can easily be printed and dispatched with zero form waste

·        rugged design to withstand extreme temperatures and harsh conditions in warehousing and freight work environments

·        fast high speed printing features

·        ability for seamless integration into current and legacy applications


4. Delivery Sheets:

·        able to accommodate most report size requirements with widths from 3” to 17”

·        fast print speeds of up to 2000 lines per minute

·        ability to design forms that have preprinted appearances and contain customer information that can be inserted all in one pass eliminating           the need to use pre-printed forms

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