Unknown Printer

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Ricoh. At the Windows Manage your device screen, click Printer properties. Click Preferences. From the Color Mode dropdown, choose either Color or Black and White.
Start the Web browser, and access the printer by entering its IP address. Click [Restrict Available Functions]. Enter the administrator password if required, and then [Apply]. Under “Available Functions” , select [Restrict] for the functions you want to restrict, and then click [Apply].
Open `System Preferences`. Select `Printers & Scanners`. Make note of default printer name (e.g. ITS-Ricoh) and server name (e.g. uq-print-01).
A paper jam or some other malfunction has occurred. See Removing Jammed Paper. Toner has nearly run out. Documents and reports do not print out.
First, check your printer settings on the file or picture your trying to print. If your page is setup to print in “grayscale” it will only print in black and white. Change the setting to “default” so it will print in color. If your settings look good from the start, the cartridge may just need to be primed.
Clean the printheads: Sometimes the issue why you are unable to print in color is because our printheads are clogged with ink. Clean the printheads and then print a document to check if color printing works. Some printers also have in-built programs that can clean themselves so remember to check for that.
Make sure that none of the ink cartridges are empty. If the cyan or yellow run out, you`ll get a definite red/pink hue to the printouts. – Verify that the paper type setting in whatever application you`re using, matches the paper type you`re using.
A blue or green light indicates the printer is operating correctly, while a red light indicates an error has occurred.
To make red, magenta and yellow inks are used, since magenta absorbs green light and yellow absorbs blue light, resulting in only red light being reflected back to our eyes. If you`ve ever used different colors of paint on a palette, you probably understand the basic mechanism of color printing.
Several factors may cause the product to print blank pages, such as print settings, low ink, or the product itself. Check the following: Make sure the product is placed on a flat, stable surface that extends beyond the base in all directions. The product won`t operate properly if it`s tilted or at an angle.
Go to “Paper / quality” tab and make sure “Black & White” option is selected. Now click on “Advanced” button – check for “Print in grayscale” option. Make sure it is turned on. Apply and save the settings.
STEP 1 Change Printer Preferences in Windows

Click start and navigate to the Printers and Devices. Right-click your printer and select printing preferences. Then, click on the Grayscale button in the advanced tab to enable black-and-white-only printing.

Choose File > Print. Expand the Color Management section at right. For Color Handling, choose Photoshop Manages Colors.
CMYK (or process color) is the color mode used in commercial printing to create full-color graphics and images. The process involves combining varying amounts of cyan (C), magenta (M), yellow (Y), and black (K – for “key”) ink to produce the full spectrum of color.
To reset your colour mode from RGB to CMYK in Photoshop, you need to go to Image > Mode. Here you`ll find your colour options, and you can simply select CMYK.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My 2550n Color LaserJet does not want to print in color
ANSWER : That model had issues with the carousel solenoid sticking. That might explain why it works after you let it sit for 10 minutes. The solenoid gets hotter with use which causes the deteriorated foam on it to become sticky and hold down the release plate instead of letting it go. This allows the carousel to spin when it is supposed to stop for each color. The solenoid is located on the right side of the printer. If you open the lid, it is just behind the opening at the top right. You need to remove the top of the printer and scrape off the goo on top of the solenoid body. I put a piece of thin sticky backed felt to replace it. Other people use electrical tape.

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HP Color Laserjet 3800 problem when printing color
ANSWER : Do a cold reset

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HP LaserJet 500 Color MFP M575 Scanner Calibration
ANSWER : 0512 is service code for m575

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HP 4700 Color alignment
ANSWER : Thanks much, this method worked for me.

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Need help for Epson Stylus color 3000 print head?
ANSWER : I need help changing the print head in my Epson 3000 – I have 2 printers – one will not stay in alignment and the other black ink is plugged and I have soaked it and cannot get it to budge.

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Reset HP Color Laserjet 4700 transfer kit
ANSWER : How about the situation when resistor does not reset the transfer belt count and even new transfer belt out of the box is not doing it. Do you have any idea how to solve this problem? I did reset transfer belts and fusing units on several HL 4700 printers with no problem but also I came across few which were not possible to reset even with oryginal parts.

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color is not printing true
ANSWER : I changed all toners and drum and it is still doing it.

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HP Color Laserjet 500 series M551n Error 98.00.0C
ANSWER : I just ran into one of these on a 4 year old m551. Failed to complete startup at the end of disk check. Followed the above link for troubleshooting.

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