Introduction

Epson Ink Tank printers are very economical compared to cartridge inkjet printers, which according to some opinions, are every bit as expensive as perfume. To increase the pain further, each cartridge may be equipped with a counter, so that the ink level in each cartridge is estimated. Furthurmore, some printers refuse to print in the remaining black if the colors were finished. Finally, the cartridge readily dry out.

Every Epson Ink Tank printer comes with a Waste Ink Tank. This is a foam lined tank which collects waste ink from printing operations. To prevent waste ink from overflowing, a waste ink counter ("WIC") counts the waste ink level. When the counter reaches the end, the printer is to all intents and purposes, bricked. Of course, this WIC is estimated. And with all things related to computers, the waste ink tank probably reaches its limit just when you need to print your report, and the service centers are closed for the day.

So, you need to reset the WIC temporarily, until you can pack the heavy printer off to the service center the next working day, and here's how:

Get reinkpy from https://codeberg.org/atufi/reinkpy and run:

$ python -c 'import reinkpy;reinkpy.Device.from_usb().epson.reset_waste()'
INFO   reinkpy.usb      Using backend "usb.backend.libusb1"
INFO   reinkpy.usb      Locating USB interface for {}...
INFO   reinkpy.usb      Found device DEVICE ID 04b8:0067 on Bus 005 Address 002 =================
 bLength                :   0x12 (18 bytes)
 bDescriptorType        :    0x1 Device
 bcdUSB                 :  0x200 USB 2.0
 bDeviceClass           :    0x0 Specified at interface
 bDeviceSubClass        :    0x0
 bDeviceProtocol        :    0x0
 bMaxPacketSize0        :   0x40 (64 bytes)
 idVendor               : 0x04b8
 idProduct              : 0x0067
 bcdDevice              :  0x100 Device 1.0
 iManufacturer          :    0x1 EPSON
 iProduct               :    0x2 EPSON L1800 Series Series
 iSerialNumber          :    0x3 555342593031323334
 bNumConfigurations     :    0x1
  CONFIGURATION 1: 2 mA ====================================
   bLength              :    0x9 (9 bytes)
   bDescriptorType      :    0x2 Configuration
   wTotalLength         :   0x20 (32 bytes)
   bNumInterfaces       :    0x1
   bConfigurationValue  :    0x1
   iConfiguration       :    0x0
   bmAttributes         :   0xc0 Self Powered
   bMaxPower            :    0x1 (2 mA)
    INTERFACE 0: Printer ===================================
     bLength            :    0x9 (9 bytes)
     bDescriptorType    :    0x4 Interface
     bInterfaceNumber   :    0x0
     bAlternateSetting  :    0x0
     bNumEndpoints      :    0x2
     bInterfaceClass    :    0x7 Printer
     bInterfaceSubClass :    0x1
     bInterfaceProtocol :    0x2
     iInterface         :    0x0
      ENDPOINT 0x4: Bulk OUT ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :    0x4 OUT
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :  0x200 (512 bytes)
       bInterval        :    0x0
      ENDPOINT 0x85: Bulk IN ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x85 IN
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :  0x200 (512 bytes)
       bInterval        :    0x0, interface (<ENDPOINT 0x85: Bulk IN>, <ENDPOINT 0x4: Bulk OUT>).
INFO   reinkpy.d4       Entering IEEE 1284.4 mode...
INFO   reinkpy.d4       Exit OK
INFO   reinkpy.epson    Loading specs for "L1800"
INFO   reinkpy.epson    Running do_reset_All_waste_counters_x1Cx1Dx1Ex1Fx46x47x48x49x4Ex4Fx4Cx4D
INFO   reinkpy.d4       Entering IEEE 1284.4 mode...
INFO   reinkpy.d4       Exit OK
INFO   reinkpy.epson    Current EEPROM values: [(28, 189), (29, 48), (30, 9), (31, 0), (70, 71), (71, 89), (72, 18), (73, 0), (78, 104), (79, 94), (76, 0), (77, 0)]
INFO   reinkpy.epson    Writing to EEPROM: ((28, 0), (29, 0), (30, 0), (31, 0), (70, 0), (71, 0), (72, 0), (73, 0), (78, 94), (79, 94), (76, 0), (77, 0))
INFO   reinkpy.d4       Entering IEEE 1284.4 mode...
INFO   reinkpy.d4       Exit OK

Now to print that report, and replace the waste ink tank foam tomorrow...

Last updated on 03 Sep 2026
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